<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:d81209df-ecd9-4536-b027-525d33071ac7,g:d603662d-039f-4ab1-a020-baf9da8cd92b-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain_455a6cc9-7f3b-4393-a0c1-117cae648a7c_terseLabel_en-US" xlink:label="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Collaborative arrangement and arrangement other than collaborative [Domain]</link:label>
    <link:label id="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain_label_en-US" xlink:label="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ifrs Collaborative Arrangement And Arrangement Other Than Collaborative [Domain]</link:label>
    <link:label id="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain_documentation_en-US" xlink:label="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IfrsCollaborativeArrangementAndArrangementOtherThanCollaborative</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain" xlink:href="pre-20241231.xsd#pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain" xlink:to="lab_pre_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract_c69a9daf-af5a-4c4a-8498-395a0726b169_verboseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Weighted average ordinary shares used in calculating basic and diluted earnings per share [abstract]</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average ordinary shares used in calculating basic and diluted earnings per share [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:to="lab_ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_Prenetics2022PlanMember_f92ddcc2-98cf-447b-a2ad-c97d4abe231f_terseLabel_en-US" xlink:label="lab_pre_Prenetics2022PlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prenetics 2022 Plan</link:label>
    <link:label id="lab_pre_Prenetics2022PlanMember_label_en-US" xlink:label="lab_pre_Prenetics2022PlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prenetics 2022 Plan [Member]</link:label>
    <link:label id="lab_pre_Prenetics2022PlanMember_documentation_en-US" xlink:label="lab_pre_Prenetics2022PlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Prenetics 2022 Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_Prenetics2022PlanMember" xlink:href="pre-20241231.xsd#pre_Prenetics2022PlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_Prenetics2022PlanMember" xlink:to="lab_pre_Prenetics2022PlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent_c14e7329-6b3d-40ed-8108-8c030b6ad17a_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income, attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis_82beb582-9e5f-48bb-bd15-0144dd292fde_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis_f61b1971-17ce-4366-abef-25b6f984d201_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Associates [axis]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Associates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SignificantInvestmentsInAssociatesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:to="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember_614ccb1e-03a7-4712-ba6a-74b99e39bb43_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and amortisation [member]</link:label>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and amortisation [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:to="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_57daa380-cbe5-4cf6-8cc0-9858542f5f1a_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherOperatingIncomeExpense_aa42ba82-f2be-49c8-8475-cdc6b917eb9a_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other income and other net gain/(losses)</link:label>
    <link:label id="lab_ifrs-full_OtherOperatingIncomeExpense_label_en-US" xlink:label="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other operating income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:to="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LeaseTerm_319220b2-9fb6-4708-894c-3c4576788696_verboseLabel_en-US" xlink:label="lab_pre_LeaseTerm" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Lease term</link:label>
    <link:label id="lab_pre_LeaseTerm_label_en-US" xlink:label="lab_pre_LeaseTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease Term</link:label>
    <link:label id="lab_pre_LeaseTerm_documentation_en-US" xlink:label="lab_pre_LeaseTerm" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Lease Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LeaseTerm" xlink:href="pre-20241231.xsd#pre_LeaseTerm"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LeaseTerm" xlink:to="lab_pre_LeaseTerm" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_81b7218f-f097-464e-8162-f8fe210b4137_terseLabel_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentLiabilities_6a46b7c5-10a9-4f0f-a0ed-f0451d340ee5_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentLiabilities_4e81a3e1-558c-4ec5-b2d3-3137120d9e8b_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_CurrentLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Current liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="lab_ifrs-full_CurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ArtisanMember_9ae00309-5ca3-47aa-b0cc-43e2aa7c616c_terseLabel_en-US" xlink:label="lab_pre_ArtisanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Artisan</link:label>
    <link:label id="lab_pre_ArtisanMember_label_en-US" xlink:label="lab_pre_ArtisanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Artisan [Member]</link:label>
    <link:label id="lab_pre_ArtisanMember_documentation_en-US" xlink:label="lab_pre_ArtisanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Artisan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ArtisanMember" xlink:href="pre-20241231.xsd#pre_ArtisanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ArtisanMember" xlink:to="lab_pre_ArtisanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsAbstract_3b354d8a-c624-431d-805e-9a5ae7876542_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsAbstract_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalentsAbstract" xlink:to="lab_ifrs-full_CashAndCashEquivalentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForAmortisationExpense_a7978ff2-f44a-4b90-a9ea-2d8b470f74b6_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortisation of intangible assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForAmortisationExpense_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForAmortisationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForAmortisationExpense" xlink:to="lab_ifrs-full_AdjustmentsForAmortisationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_7cc12bf8-241c-495e-9130-bf5f403056bc_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_label_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEarningsPerShareExplanatory_d8afa2d8-4cdc-4a64-bb05-f9cdaf485831_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loss per share</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEarningsPerShareExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of earnings per share [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityAbstract_0d25ee00-4eb8-47fb-8204-ad90d172cf37_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassBCommonStockMember_806ecdd1-c08b-4d78-81b0-aa64dd039f1e_terseLabel_en-US" xlink:label="lab_pre_ClassBCommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class B ordinary shares</link:label>
    <link:label id="lab_pre_ClassBCommonStockMember_label_en-US" xlink:label="lab_pre_ClassBCommonStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class B Common Stock [Member]</link:label>
    <link:label id="lab_pre_ClassBCommonStockMember_documentation_en-US" xlink:label="lab_pre_ClassBCommonStockMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class B Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassBCommonStockMember" xlink:href="pre-20241231.xsd#pre_ClassBCommonStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassBCommonStockMember" xlink:to="lab_pre_ClassBCommonStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGoodwillExplanatory_22dfb44f-6167-4e5d-8d55-c7841bbc8016_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock_6652f16b-fb0f-4746-87ed-d48eb2ff2596_verboseLabel_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of deferred tax liability asset explanatory</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Deferred Tax Liability Asset Explanatory [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Deferred Tax Liability Asset Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock" xlink:to="lab_pre_DisclosureOfDetailedInformationAboutDeferredTaxLiabilityAssetExplanatoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_67cfbc95-b46f-4d2e-96a6-9d83a26326e7_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OrdinarySharesMember_9a7bb9f8-6ce6-440d-a005-4153171405e3_terseLabel_en-US" xlink:label="lab_ifrs-full_OrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ordinary shares</link:label>
    <link:label id="lab_ifrs-full_OrdinarySharesMember_label_en-US" xlink:label="lab_ifrs-full_OrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ordinary shares [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OrdinarySharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OrdinarySharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OrdinarySharesMember" xlink:to="lab_ifrs-full_OrdinarySharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_d1cdcb23-08ba-4f94-9c85-aa41b0cb4786_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of the principal subsidiaries of the Company</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_c701820c-bbe9-4020-84d6-f04776f292ea_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of the group's material non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interests in subsidiaries [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss_5665affc-c77c-4a3f-b03c-3b525b5b2548_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current financial assets at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_468fd8bd-911a-426e-b243-07ddbbb457e7_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_d764174c-3cfe-4b44-8db6-0c45af3a1b2e_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_9c5bd762-5d7b-4fa1-89ae-7490bc4011b9_verboseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeographicalAreasDomain_39117a81-3cfd-4ba0-b3d8-397c042a3a61_terseLabel_en-US" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical areas [domain]</link:label>
    <link:label id="lab_ifrs-full_GeographicalAreasDomain_label_en-US" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical areas [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasDomain" xlink:to="lab_ifrs-full_GeographicalAreasDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_746eea6e-35d7-4da8-8d09-d6908779af46_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities arising from financing activities [domain]</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities arising from financing activities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:to="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProductsAndServicesAxis_4a9de3a6-c7d6-49c3-852b-d104e2a04462_terseLabel_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products and services [axis]</link:label>
    <link:label id="lab_ifrs-full_ProductsAndServicesAxis_label_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products and services [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProductsAndServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesAxis" xlink:to="lab_ifrs-full_ProductsAndServicesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory_50d88179-b2ed-4cf3-8280-7e978c55aa33_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of number and weighted average exercise prices of share options</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of number and weighted average exercise prices of share options [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets_9b9f9079-b57a-46c0-9f92-2866331069c3_terseLabel_en-US" xlink:label="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IncreaseThroughAcquisitionOfFinancialAssets</link:label>
    <link:label id="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets_label_en-US" xlink:label="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IncreaseThroughAcquisitionOfFinancialAssets</link:label>
    <link:label id="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets_documentation_en-US" xlink:label="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IncreaseThroughAcquisitionOfFinancialAssets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseThroughAcquisitionOfFinancialAssets" xlink:href="pre-20241231.xsd#pre_IncreaseThroughAcquisitionOfFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseThroughAcquisitionOfFinancialAssets" xlink:to="lab_pre_IncreaseThroughAcquisitionOfFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromGovernmentGrants_2996ec43-0d1f-4185-a298-a6346482c559_verboseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromGovernmentGrants" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income from government grants</link:label>
    <link:label id="lab_ifrs-full_RevenueFromGovernmentGrants_label_en-US" xlink:label="lab_ifrs-full_RevenueFromGovernmentGrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income from government grants</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromGovernmentGrants" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromGovernmentGrants"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromGovernmentGrants" xlink:to="lab_ifrs-full_RevenueFromGovernmentGrants" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted_c5273793-bdd7-46f2-8a51-c71e3b0b67af_terseLabel_en-US" xlink:label="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate fair value of the RSUs (in US Dollar)</link:label>
    <link:label id="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Fair Value, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aggregate Fair Value, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AggregateFairValueOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_AggregateFairValueOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AggregateFairValueOtherEquityInstrumentsGranted" xlink:to="lab_pre_AggregateFairValueOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme_8e42f1d2-3465-49b9-be85-90b814318486_verboseLabel_en-US" xlink:label="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Revenue from funding support of employee support scheme</link:label>
    <link:label id="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme_label_en-US" xlink:label="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue From Funding Support Of Employee Support Scheme</link:label>
    <link:label id="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme_documentation_en-US" xlink:label="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue From Funding Support Of Employee Support Scheme</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RevenueFromFundingSupportOfEmployeeSupportScheme" xlink:href="pre-20241231.xsd#pre_RevenueFromFundingSupportOfEmployeeSupportScheme"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RevenueFromFundingSupportOfEmployeeSupportScheme" xlink:to="lab_pre_RevenueFromFundingSupportOfEmployeeSupportScheme" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EarningsPerShareLineItems_9c459065-7923-4ac2-9108-94ffa2df099a_terseLabel_en-US" xlink:label="lab_ifrs-full_EarningsPerShareLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnings per share [line items]</link:label>
    <link:label id="lab_ifrs-full_EarningsPerShareLineItems_label_en-US" xlink:label="lab_ifrs-full_EarningsPerShareLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings per share [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EarningsPerShareLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareLineItems" xlink:to="lab_ifrs-full_EarningsPerShareLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_Doubtful1Member_5b69d461-f64c-41b9-953f-724e6a3f362e_terseLabel_en-US" xlink:label="lab_pre_Doubtful1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Doubtful1 [Member]</link:label>
    <link:label id="lab_pre_Doubtful1Member_label_en-US" xlink:label="lab_pre_Doubtful1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Doubtful1 [Member]</link:label>
    <link:label id="lab_pre_Doubtful1Member_documentation_en-US" xlink:label="lab_pre_Doubtful1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Doubtful1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_Doubtful1Member" xlink:href="pre-20241231.xsd#pre_Doubtful1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_Doubtful1Member" xlink:to="lab_pre_Doubtful1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OfficeEquipmentMember_d28a2bbe-48cb-47ed-9db5-526afcb38af9_terseLabel_en-US" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lab equipment</link:label>
    <link:label id="lab_ifrs-full_OfficeEquipmentMember_3dec1f16-0739-407e-9d2f-56f82a04effb_verboseLabel_en-US" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Office equipment [member]</link:label>
    <link:label id="lab_ifrs-full_OfficeEquipmentMember_fbe61a17-a7f4-4e4b-bdd5-b185a9a898ba_netLabel_en-US" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Office equipment [member]</link:label>
    <link:label id="lab_ifrs-full_OfficeEquipmentMember_label_en-US" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Office equipment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OfficeEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OfficeEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OfficeEquipmentMember" xlink:to="lab_ifrs-full_OfficeEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_bf9891bc-01ee-4890-bf03-55585862a195_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in other liabilities</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_Expenses_1438c0cb-9b50-425f-bb11-e06aa88dc191_negatedTerseLabel_en-US" xlink:label="lab_pre_Expenses" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Expenses</link:label>
    <link:label id="lab_pre_Expenses_label_en-US" xlink:label="lab_pre_Expenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expenses</link:label>
    <link:label id="lab_pre_Expenses_documentation_en-US" xlink:label="lab_pre_Expenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_Expenses" xlink:href="pre-20241231.xsd#pre_Expenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_Expenses" xlink:to="lab_pre_Expenses" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_022ce6ea-9bc0-48ca-8c37-d6947f348020_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Exercised (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of other equity instruments exercised or vested in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ACTGenomicsMember_ec8bff29-4692-4beb-82e7-3a7fde1bfc94_terseLabel_en-US" xlink:label="lab_pre_ACTGenomicsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACT Genomics</link:label>
    <link:label id="lab_pre_ACTGenomicsMember_label_en-US" xlink:label="lab_pre_ACTGenomicsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACT Genomics [Member]</link:label>
    <link:label id="lab_pre_ACTGenomicsMember_documentation_en-US" xlink:label="lab_pre_ACTGenomicsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACT Genomics</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ACTGenomicsMember" xlink:href="pre-20241231.xsd#pre_ACTGenomicsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ACTGenomicsMember" xlink:to="lab_pre_ACTGenomicsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PreneticsLimitedMember_c1521ea4-0353-4a35-ab77-36ecd5225e2a_terseLabel_en-US" xlink:label="lab_pre_PreneticsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prenetics Limited [Member]</link:label>
    <link:label id="lab_pre_PreneticsLimitedMember_label_en-US" xlink:label="lab_pre_PreneticsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prenetics Limited [Member]</link:label>
    <link:label id="lab_pre_PreneticsLimitedMember_documentation_en-US" xlink:label="lab_pre_PreneticsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Prenetics Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PreneticsLimitedMember" xlink:href="pre-20241231.xsd#pre_PreneticsLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PreneticsLimitedMember" xlink:to="lab_pre_PreneticsLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AuditorInformationTable_23427ce9-f841-4921-b896-34290850cf88_terseLabel_en-US" xlink:label="lab_pre_AuditorInformationTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Information [Table]</link:label>
    <link:label id="lab_pre_AuditorInformationTable_label_en-US" xlink:label="lab_pre_AuditorInformationTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Information [Table]</link:label>
    <link:label id="lab_pre_AuditorInformationTable_documentation_en-US" xlink:label="lab_pre_AuditorInformationTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Auditor Information</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AuditorInformationTable" xlink:href="pre-20241231.xsd#pre_AuditorInformationTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AuditorInformationTable" xlink:to="lab_pre_AuditorInformationTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits_cb3c6fe9-6ac2-4a8d-936c-188dfcb7e35f_terseLabel_en-US" xlink:label="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of warrants or rights issued during the period units (in shares)</link:label>
    <link:label id="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits_label_en-US" xlink:label="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class Of Warrants Or Rights Issued During The Period Units</link:label>
    <link:label id="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits_documentation_en-US" xlink:label="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class Of Warrants Or Rights Issued During The Period Units</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits" xlink:href="pre-20241231.xsd#pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits" xlink:to="lab_pre_ClassOfWarrantsOrRightsIssuedDuringThePeriodUnits" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CostOfSalesMember_e5af9c8b-307c-42f8-b544-c6ad20fb9a05_terseLabel_en-US" xlink:label="lab_ifrs-full_CostOfSalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost of sales [member]</link:label>
    <link:label id="lab_ifrs-full_CostOfSalesMember_label_en-US" xlink:label="lab_ifrs-full_CostOfSalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of sales [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CostOfSalesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CostOfSalesMember" xlink:to="lab_ifrs-full_CostOfSalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1_58567a70-941f-4484-addd-47d515297061_terseLabel_en-US" xlink:label="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average remaining contractual life (in years)</link:label>
    <link:label id="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1_label_en-US" xlink:label="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Outstanding, Weighted Average Remaining Contractual Terms1</link:label>
    <link:label id="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1_documentation_en-US" xlink:label="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Outstanding, Weighted Average Remaining Contractual Terms1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1" xlink:href="pre-20241231.xsd#pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1" xlink:to="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorCustomersDomain_2e565128-9625-4768-83f1-1a3d12a52f29_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorCustomersDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major customers [domain]</link:label>
    <link:label id="lab_ifrs-full_MajorCustomersDomain_label_en-US" xlink:label="lab_ifrs-full_MajorCustomersDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major customers [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorCustomersDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorCustomersDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorCustomersDomain" xlink:to="lab_ifrs-full_MajorCustomersDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate_1fa79520-205c-4019-9395-20575d0fe59d_terseLabel_en-US" xlink:label="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade Receivables Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate_bde03f7a-b2eb-46c4-8784-1607780e977c_verboseLabel_en-US" xlink:label="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Trade Receivables Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade Receivables Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trade Receivables Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_TradeReceivablesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_0633db0e-171b-4200-8b0d-25958db406f4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DeferredExpensesCurrentAbstract_8499f8c9-3397-445c-ba72-15ea9020653e_terseLabel_en-US" xlink:label="lab_pre_DeferredExpensesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred Expenses Current [Abstract]</link:label>
    <link:label id="lab_pre_DeferredExpensesCurrentAbstract_label_en-US" xlink:label="lab_pre_DeferredExpensesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Expenses Current [Abstract]</link:label>
    <link:label id="lab_pre_DeferredExpensesCurrentAbstract_documentation_en-US" xlink:label="lab_pre_DeferredExpensesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Expenses Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DeferredExpensesCurrentAbstract" xlink:href="pre-20241231.xsd#pre_DeferredExpensesCurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DeferredExpensesCurrentAbstract" xlink:to="lab_pre_DeferredExpensesCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentLiabilities_6eafc623-a455-4b83-9fdd-382b495eafe4_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Current Liabilities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLiabilities_c203daf1-c137-4353-9622-6b815c508a66_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Non-current liabilities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLiabilities_label_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLiabilities" xlink:to="lab_ifrs-full_NoncurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WorkInProgress_45b53efe-ed69-4662-89a8-721dd983bb54_terseLabel_en-US" xlink:label="lab_ifrs-full_WorkInProgress" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current work in progress</link:label>
    <link:label id="lab_ifrs-full_WorkInProgress_label_en-US" xlink:label="lab_ifrs-full_WorkInProgress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current work in progress</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WorkInProgress" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WorkInProgress"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WorkInProgress" xlink:to="lab_ifrs-full_WorkInProgress" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare_3486d4e0-76d8-4afb-84f4-7df4902b0db3_verboseLabel_en-US" xlink:label="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Closing price per ordinary share less subscription price per (in $ per share)</link:label>
    <link:label id="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare_label_en-US" xlink:label="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Closing Price Per Ordinary Share Less Subscription Price Per Ordinary Share</link:label>
    <link:label id="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare_documentation_en-US" xlink:label="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Closing Price Per Ordinary Share Less Subscription Price Per Ordinary Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare" xlink:href="pre-20241231.xsd#pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare" xlink:to="lab_pre_ClosingPricePerOrdinaryShareLessSubscriptionPricePerOrdinaryShare" xlink:type="arc" order="1"/>
    <link:label id="lab_country_US_9410f5c5-20d6-42c4-a3ab-b809164b9989_terseLabel_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UNITED STATES</link:label>
    <link:label id="lab_country_US_label_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED STATES</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_US" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_US"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_US" xlink:to="lab_country_US" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_3e5e1ef4-96b1-467f-84fb-f89ee2411819_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis of preparation of consolidated financial statements</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of basis of preparation of financial statements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinishedGoods_260c8982-5a5d-452d-aa7c-29545659f67f_terseLabel_en-US" xlink:label="lab_ifrs-full_FinishedGoods" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current finished goods</link:label>
    <link:label id="lab_ifrs-full_FinishedGoods_label_en-US" xlink:label="lab_ifrs-full_FinishedGoods" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current finished goods</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinishedGoods" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinishedGoods"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinishedGoods" xlink:to="lab_ifrs-full_FinishedGoods" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherReceivables_6eef268f-bc16-4cce-847f-0192baf5f8e3_totalLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total trade and other receivables</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherReceivables_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherReceivables" xlink:to="lab_ifrs-full_TradeAndOtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfSharesExchangedAsPerAgreement_6cbea7f8-667c-4f47-8f6d-5fb9082dd999_terseLabel_en-US" xlink:label="lab_pre_NumberOfSharesExchangedAsPerAgreement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares exchanged (in shares)</link:label>
    <link:label id="lab_pre_NumberOfSharesExchangedAsPerAgreement_label_en-US" xlink:label="lab_pre_NumberOfSharesExchangedAsPerAgreement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Shares Exchanged As Per Agreement</link:label>
    <link:label id="lab_pre_NumberOfSharesExchangedAsPerAgreement_documentation_en-US" xlink:label="lab_pre_NumberOfSharesExchangedAsPerAgreement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Shares Exchanged As Per Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfSharesExchangedAsPerAgreement" xlink:href="pre-20241231.xsd#pre_NumberOfSharesExchangedAsPerAgreement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfSharesExchangedAsPerAgreement" xlink:to="lab_pre_NumberOfSharesExchangedAsPerAgreement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DiscountRateMeasurementInputMember_c03cf463-63e9-4d1c-96b1-33a01784a0c4_terseLabel_en-US" xlink:label="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement input, discount rate</link:label>
    <link:label id="lab_ifrs-full_DiscountRateMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discount rate, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DiscountRateMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DiscountRateMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DiscountRateMeasurementInputMember" xlink:to="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FreightAndDeliveryCharges_d1e40a2f-f736-4c64-936e-e7d147117894_terseLabel_en-US" xlink:label="lab_pre_FreightAndDeliveryCharges" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Freight And Delivery Charges</link:label>
    <link:label id="lab_pre_FreightAndDeliveryCharges_label_en-US" xlink:label="lab_pre_FreightAndDeliveryCharges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Freight And Delivery Charges</link:label>
    <link:label id="lab_pre_FreightAndDeliveryCharges_documentation_en-US" xlink:label="lab_pre_FreightAndDeliveryCharges" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Freight And Delivery Charges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FreightAndDeliveryCharges" xlink:href="pre-20241231.xsd#pre_FreightAndDeliveryCharges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FreightAndDeliveryCharges" xlink:to="lab_pre_FreightAndDeliveryCharges" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherGainsLosses_3b8f3807-9e06-4604-8867-1fbbcf19b9eb_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherGainsLosses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_ifrs-full_OtherGainsLosses_label_en-US" xlink:label="lab_ifrs-full_OtherGainsLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other gains (losses)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherGainsLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherGainsLosses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherGainsLosses" xlink:to="lab_ifrs-full_OtherGainsLosses" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations_6edb0d1f-4278-4895-aa8f-bc27d1e9a17d_verboseLabel_en-US" xlink:label="lab_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Revenue to be recognized in within one year</link:label>
    <link:label id="lab_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations_label_en-US" xlink:label="lab_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transaction price allocated to remaining performance obligations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations" xlink:to="lab_ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ManufacturingEquipmentMember_0f806770-fd9d-42bb-ae29-c3e4c87f10dd_terseLabel_en-US" xlink:label="lab_pre_ManufacturingEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Manufacturing Equipment [Member]</link:label>
    <link:label id="lab_pre_ManufacturingEquipmentMember_label_en-US" xlink:label="lab_pre_ManufacturingEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Manufacturing Equipment [Member]</link:label>
    <link:label id="lab_pre_ManufacturingEquipmentMember_documentation_en-US" xlink:label="lab_pre_ManufacturingEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Manufacturing Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ManufacturingEquipmentMember" xlink:href="pre-20241231.xsd#pre_ManufacturingEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ManufacturingEquipmentMember" xlink:to="lab_pre_ManufacturingEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate_ece5b406-3817-4566-add4-1decae211852_negatedLabel_en-US" xlink:label="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Liabilities Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_TaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract_8239910a-2fca-4c5e-b4bb-4973e47efbed_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets and liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax assets and liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:to="lab_ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_MCDiagnosticsLimitedMember_9822ec3a-8ce7-4625-822d-09a1f5ab4fcf_terseLabel_en-US" xlink:label="lab_pre_MCDiagnosticsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MC Diagnostics Limited [Member]</link:label>
    <link:label id="lab_pre_MCDiagnosticsLimitedMember_label_en-US" xlink:label="lab_pre_MCDiagnosticsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MC Diagnostics Limited [Member]</link:label>
    <link:label id="lab_pre_MCDiagnosticsLimitedMember_documentation_en-US" xlink:label="lab_pre_MCDiagnosticsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MC Diagnostics Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_MCDiagnosticsLimitedMember" xlink:href="pre-20241231.xsd#pre_MCDiagnosticsLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_MCDiagnosticsLimitedMember" xlink:to="lab_pre_MCDiagnosticsLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantUnobservableInputAssets_07278447-1b65-4f11-8253-84e46b4316bc_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantUnobservableInputAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant unobservable input, assets (%)</link:label>
    <link:label id="lab_ifrs-full_SignificantUnobservableInputAssets_label_en-US" xlink:label="lab_ifrs-full_SignificantUnobservableInputAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant unobservable input, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantUnobservableInputAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SignificantUnobservableInputAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantUnobservableInputAssets" xlink:to="lab_ifrs-full_SignificantUnobservableInputAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfShareOptionSchemeTerminated_c26ffaf9-8854-4c72-b017-0fde00b4276b_terseLabel_en-US" xlink:label="lab_pre_NumberOfShareOptionSchemeTerminated" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of share option scheme terminated</link:label>
    <link:label id="lab_pre_NumberOfShareOptionSchemeTerminated_label_en-US" xlink:label="lab_pre_NumberOfShareOptionSchemeTerminated" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Share Option Scheme Terminated</link:label>
    <link:label id="lab_pre_NumberOfShareOptionSchemeTerminated_documentation_en-US" xlink:label="lab_pre_NumberOfShareOptionSchemeTerminated" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Share Option Scheme Terminated</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfShareOptionSchemeTerminated" xlink:href="pre-20241231.xsd#pre_NumberOfShareOptionSchemeTerminated"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfShareOptionSchemeTerminated" xlink:to="lab_pre_NumberOfShareOptionSchemeTerminated" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CostOfSales_175c09ca-1be2-4f60-996f-e36b8bc21a33_negatedLabel_en-US" xlink:label="lab_ifrs-full_CostOfSales" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cost of sales</link:label>
    <link:label id="lab_ifrs-full_CostOfSales_f290a1c1-37d6-4dbe-ae35-3872bdc116d8_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_CostOfSales" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Cost of sales</link:label>
    <link:label id="lab_ifrs-full_CostOfSales_label_en-US" xlink:label="lab_ifrs-full_CostOfSales" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of sales</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CostOfSales" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSales"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CostOfSales" xlink:to="lab_ifrs-full_CostOfSales" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember_9da46d11-20c3-4bf4-8e98-e39f948ec6f3_terseLabel_en-US" xlink:label="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">E-commerce And Retail Logistics For Sports Distribution Within The Consumer Health Segment [Member]</link:label>
    <link:label id="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember_label_en-US" xlink:label="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">E-commerce And Retail Logistics For Sports Distribution Within The Consumer Health Segment [Member]</link:label>
    <link:label id="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember_documentation_en-US" xlink:label="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">E-commerce And Retail Logistics For Sports Distribution Within The Consumer Health Segment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember" xlink:href="pre-20241231.xsd#pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember" xlink:to="lab_pre_ECommerceAndRetailLogisticsForSportsDistributionWithinTheConsumerHealthSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime_075404d4-f54e-4fd6-97ed-367f7a088aa6_terseLabel_en-US" xlink:label="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of subsidiaries under two-tiered profit tax rate regime</link:label>
    <link:label id="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime_label_en-US" xlink:label="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Subsidiaries Under Two-Tiered Profit Tax Rate Regime</link:label>
    <link:label id="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime_documentation_en-US" xlink:label="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Subsidiaries Under Two-Tiered Profit Tax Rate Regime</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime" xlink:href="pre-20241231.xsd#pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime" xlink:to="lab_pre_NumberOfSubsidiariesUnderTwoTieredProfitTaxRateRegime" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AuditorInformationAbstract_label_en-US" xlink:label="lab_pre_AuditorInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Information [Abstract]</link:label>
    <link:label id="lab_pre_AuditorInformationAbstract_documentation_en-US" xlink:label="lab_pre_AuditorInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Auditor Information</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AuditorInformationAbstract" xlink:href="pre-20241231.xsd#pre_AuditorInformationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AuditorInformationAbstract" xlink:to="lab_pre_AuditorInformationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_09cc0b92-084e-4fb2-b016-5972b7b8b498_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of fair value measurements</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGoingConcernExplanatory_76355a53-a3c5-454c-9a22-d499387770c4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoingConcernExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Going concern</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGoingConcernExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoingConcernExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of going concern [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoingConcernExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGoingConcernExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGoingConcernExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGoingConcernExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable_568cded4-8659-40b0-a987-96ef7d9cd41e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_country_TW_ecae5189-b0bc-4321-9dc7-de092c1b8eef_terseLabel_en-US" xlink:label="lab_country_TW" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TAIWAN</link:label>
    <link:label id="lab_country_TW_label_en-US" xlink:label="lab_country_TW" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">TAIWAN</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_TW" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_TW"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_TW" xlink:to="lab_country_TW" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherCurrentReceivables_fb3abc83-648f-4e87-87ea-40d4966d3fe9_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prepayments</link:label>
    <link:label id="lab_ifrs-full_OtherCurrentReceivables_label_en-US" xlink:label="lab_ifrs-full_OtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other current receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentReceivables" xlink:to="lab_ifrs-full_OtherCurrentReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities_26b6be27-d6a6-4c94-9603-12f9e10422ab_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of other long-term assets, classified as investing activities</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of other long-term assets, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_23b21f0e-572a-4b27-a41f-d7fdcb517a19_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding (in shares)</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity_2fed710b-6a1f-4d28-9b00-a290d59155f8_negatedLabel_en-US" xlink:label="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Decrease Through Issuance Of Liabilities For Puttable Financial Instrument For Acquisition Equity</link:label>
    <link:label id="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity_label_en-US" xlink:label="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Issuance Of Liabilities For Puttable Financial Instrument For Acquisition Equity</link:label>
    <link:label id="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity_documentation_en-US" xlink:label="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Issuance Of Liabilities For Puttable Financial Instrument For Acquisition Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity" xlink:href="pre-20241231.xsd#pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity" xlink:to="lab_pre_DecreaseThroughIssuanceOfLiabilitiesForPuttableFinancialInstrumentForAcquisitionEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InternalCreditGradesDomain_d2f03753-3f86-4d63-ae21-b690cb69eabf_terseLabel_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Internal credit grades [domain]</link:label>
    <link:label id="lab_ifrs-full_InternalCreditGradesDomain_label_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Internal credit grades [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InternalCreditGradesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InternalCreditGradesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InternalCreditGradesDomain" xlink:to="lab_ifrs-full_InternalCreditGradesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_96b4db34-cd40-4756-9828-5956d270ccfc_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of foreign exchange rate changes, net</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in trade accounts payable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockIssuedDuringPeriodSharesNewIssues1_ea280f0f-132d-4b19-8bff-3740d77618fd_terseLabel_en-US" xlink:label="lab_pre_StockIssuedDuringPeriodSharesNewIssues1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued (in shares)</link:label>
    <link:label id="lab_pre_StockIssuedDuringPeriodSharesNewIssues1_label_en-US" xlink:label="lab_pre_StockIssuedDuringPeriodSharesNewIssues1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, New Issues1</link:label>
    <link:label id="lab_pre_StockIssuedDuringPeriodSharesNewIssues1_documentation_en-US" xlink:label="lab_pre_StockIssuedDuringPeriodSharesNewIssues1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, New Issues1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockIssuedDuringPeriodSharesNewIssues1" xlink:href="pre-20241231.xsd#pre_StockIssuedDuringPeriodSharesNewIssues1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockIssuedDuringPeriodSharesNewIssues1" xlink:to="lab_pre_StockIssuedDuringPeriodSharesNewIssues1" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock_f8d40b03-37b8-4821-8c3f-0884283fd152_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial instruments - Fair values and risk management</link:label>
    <link:label id="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Financial Risk Management And Fair Value Of Financial Instruments [Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Financial Risk Management And Fair Value Of Financial Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock" xlink:to="lab_pre_DisclosureOfFinancialRiskManagementAndFairValueOfFinancialInstrumentsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_eb560fda-57e4-4561-8222-120031b90584_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Options exercisable period (in years)</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Option life, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfOptionLifeShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_6dc63c9f-dfbf-4e8e-8285-335a5531148e_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Expense from share-based payment transactions</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_label_en-US" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense from share-based payment transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:to="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_b68f96be-a78c-4709-9e27-da4400b1cd94_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average remaining contractual life of outstanding share options</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average remaining contractual life of outstanding share options</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:to="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SanomicsLimitedMember_593ce5c0-e746-44a3-9cfa-5f5ac20ce8ea_terseLabel_en-US" xlink:label="lab_pre_SanomicsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sanomics Limited [Member]</link:label>
    <link:label id="lab_pre_SanomicsLimitedMember_label_en-US" xlink:label="lab_pre_SanomicsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sanomics Limited [Member]</link:label>
    <link:label id="lab_pre_SanomicsLimitedMember_documentation_en-US" xlink:label="lab_pre_SanomicsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sanomics Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SanomicsLimitedMember" xlink:href="pre-20241231.xsd#pre_SanomicsLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SanomicsLimitedMember" xlink:to="lab_pre_SanomicsLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_447fa640-bc84-432f-9d95-dcc9f1add960_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Acquired on acquisition of subsidiaries (note 19)</link:label>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions other than through business combinations, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis_45a5ea36-8209-4202-86d9-7c3e8a7db9de_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [axis]</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:to="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipment_8e9653c3-f0de-4725-98e1-fed3d321ac7e_terseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_3b1cd97f-251a-40a6-84e8-8c01c6d4c2f5_verboseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesAbstract" xlink:to="lab_ifrs-full_LiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets_078a42cf-a3b0-4d7f-b285-0d40f934fa6e_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange adjustments</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_ef552cca-2872-4584-bc0b-26d563a01e75_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through acquisition of subsidiary, equity</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_dff02b24-0176-463b-a1e8-17665b069448_verboseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through acquisition of subsidiary, equity</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through acquisition of subsidiary, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems_92ee5c4f-58a7-4dc4-a8ae-2013eb7b0544_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Joint Ventures And Associates [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems_label_en-US" xlink:label="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Joint Ventures And Associates [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems_documentation_en-US" xlink:label="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Joint Ventures And Associates [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfJointVenturesAndAssociatesLineItems" xlink:href="pre-20241231.xsd#pre_DisclosureOfJointVenturesAndAssociatesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfJointVenturesAndAssociatesLineItems" xlink:to="lab_pre_DisclosureOfJointVenturesAndAssociatesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract_33ec7057-41c1-4aa4-b264-98c847376cdd_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current tax expense</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income) and adjustments for current tax of prior periods [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FloatingInterestRateMember_c45ee76b-b8ee-4936-8fd0-fa193472bff3_terseLabel_en-US" xlink:label="lab_ifrs-full_FloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Floating interest rate</link:label>
    <link:label id="lab_ifrs-full_FloatingInterestRateMember_label_en-US" xlink:label="lab_ifrs-full_FloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Floating interest rate [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FloatingInterestRateMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FloatingInterestRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FloatingInterestRateMember" xlink:to="lab_ifrs-full_FloatingInterestRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdvancesToEmployees_fafe967c-001e-452d-9b73-a545904c660f_terseLabel_en-US" xlink:label="lab_pre_AdvancesToEmployees" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred expenses</link:label>
    <link:label id="lab_pre_AdvancesToEmployees_label_en-US" xlink:label="lab_pre_AdvancesToEmployees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advances To Employees</link:label>
    <link:label id="lab_pre_AdvancesToEmployees_documentation_en-US" xlink:label="lab_pre_AdvancesToEmployees" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Advances To Employees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdvancesToEmployees" xlink:href="pre-20241231.xsd#pre_AdvancesToEmployees"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdvancesToEmployees" xlink:to="lab_pre_AdvancesToEmployees" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromCurrentBorrowings_4d9c2a84-3ff1-4a4f-8f6e-8e60b0a75a7a_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromCurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from current borrowings</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromCurrentBorrowings_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromCurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromCurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromCurrentBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromCurrentBorrowings" xlink:to="lab_ifrs-full_ProceedsFromCurrentBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain_0fc97e2b-1e39-4505-9135-4ac7fe924512_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:to="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable_999b4146-50e2-4c7b-9a50-a00b0c1e7751_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock_f9c28a32-68b6-47e5-8c77-e0570f705baf_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of expected credit loss assessment</link:label>
    <link:label id="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Expected Credit Loss Assessment [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Expected Credit Loss Assessment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock" xlink:to="lab_pre_ScheduleOfExpectedCreditLossAssessmentTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_ea137908-08e3-4155-ad89-fb3ef0f37494_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract_7caf4a74-8f81-4290-85b3-5353a5cf0c2a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_2c4617a5-6d3c-48cb-b6d5-14ef56a8b524_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_cadece0b-f5ec-4861-8fcf-923af9c9da53_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate_e8dc03e9-3e05-473a-9f88-4417a9e90a29_terseLabel_en-US" xlink:label="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Non Current Assets Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Non Current Assets Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Non Current Assets Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember_c1a24b7a-9ec1-4b96-95eb-1d516d193871_terseLabel_en-US" xlink:label="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cancer Genetic Testing Services Within The Diagnostics Segment [Member]</link:label>
    <link:label id="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember_label_en-US" xlink:label="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cancer Genetic Testing Services Within The Diagnostics Segment [Member]</link:label>
    <link:label id="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember_documentation_en-US" xlink:label="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cancer Genetic Testing Services Within The Diagnostics Segment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember" xlink:href="pre-20241231.xsd#pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember" xlink:to="lab_pre_CancerGeneticTestingServicesWithinTheDiagnosticsSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_c38cdfe7-bf7e-4ee8-bb35-e8fe96472917_negatedLabel_en-US" xlink:label="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate</link:label>
    <link:label id="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate</link:label>
    <link:label id="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_OtherNoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ResearchAndDevelopmentExpense1Member_3f57589b-9296-49e1-b94a-d287179a66b7_terseLabel_en-US" xlink:label="lab_pre_ResearchAndDevelopmentExpense1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Research And Development Expense1 [Member]</link:label>
    <link:label id="lab_pre_ResearchAndDevelopmentExpense1Member_label_en-US" xlink:label="lab_pre_ResearchAndDevelopmentExpense1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Research And Development Expense1 [Member]</link:label>
    <link:label id="lab_pre_ResearchAndDevelopmentExpense1Member_documentation_en-US" xlink:label="lab_pre_ResearchAndDevelopmentExpense1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Research And Development Expense1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ResearchAndDevelopmentExpense1Member" xlink:href="pre-20241231.xsd#pre_ResearchAndDevelopmentExpense1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ResearchAndDevelopmentExpense1Member" xlink:to="lab_pre_ResearchAndDevelopmentExpense1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_4acb7ac4-aa59-41e7-b8a2-4753577d92f4_terseLabel_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [axis]</link:label>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_label_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:to="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OperatingSegmentsMember_3b1dc4c9-173c-45f0-a41e-219788f7f474_terseLabel_en-US" xlink:label="lab_ifrs-full_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating segments</link:label>
    <link:label id="lab_ifrs-full_OperatingSegmentsMember_label_en-US" xlink:label="lab_ifrs-full_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating segments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingSegmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingSegmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingSegmentsMember" xlink:to="lab_ifrs-full_OperatingSegmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems_ef94dbb3-b3ec-464e-bc65-9652b4dfc9e0_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Warranty Liabilities [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems_label_en-US" xlink:label="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Warranty Liabilities [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems_documentation_en-US" xlink:label="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Warranty Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfWarrantyLiabilitiesLineItems" xlink:href="pre-20241231.xsd#pre_DisclosureOfWarrantyLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfWarrantyLiabilitiesLineItems" xlink:to="lab_pre_DisclosureOfWarrantyLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems_88ec86b9-7e5b-4811-9819-302b617d9090_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:to="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory_f2923685-fd41-4d16-9d1e-ded39153f89d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of stock option performance, share options granted during the year</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpenses_05f61e53-4b75-46a3-b50d-300d6a3bee10_negatedLabel_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpenses" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Finance costs</link:label>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpenses_8253cb10-9539-4767-b061-0634d2e1076e_negatedTerseLabel_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpenses" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses</link:label>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpenses_6ba834ad-bf62-40fe-b385-7a436a39c3e3_terseLabel_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses</link:label>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpenses_label_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses</link:label>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpenses_documentation_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdministrativeAndOtherOperatingExpenses" xlink:href="pre-20241231.xsd#pre_AdministrativeAndOtherOperatingExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdministrativeAndOtherOperatingExpenses" xlink:to="lab_pre_AdministrativeAndOtherOperatingExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassOfShareCapitalOneDomain_db2c3b58-4fb9-4fd4-89d1-d7f039d01377_terseLabel_en-US" xlink:label="lab_pre_ClassOfShareCapitalOneDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class Of Share Capital One [Domain]</link:label>
    <link:label id="lab_pre_ClassOfShareCapitalOneDomain_label_en-US" xlink:label="lab_pre_ClassOfShareCapitalOneDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ClassOfShareCapitalOneDomain</link:label>
    <link:label id="lab_pre_ClassOfShareCapitalOneDomain_documentation_en-US" xlink:label="lab_pre_ClassOfShareCapitalOneDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ClassOfShareCapitalOneDomain</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassOfShareCapitalOneDomain" xlink:href="pre-20241231.xsd#pre_ClassOfShareCapitalOneDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassOfShareCapitalOneDomain" xlink:to="lab_pre_ClassOfShareCapitalOneDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level2OfFairValueHierarchyMember_ba5daa56-5563-45e1-98b4-a0380fe4cea3_terseLabel_en-US" xlink:label="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level 2 of fair value hierarchy [member]</link:label>
    <link:label id="lab_ifrs-full_Level2OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 2 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level2OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019_8c8a6fad-468b-48bc-9a9d-028bbfd170a0_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019_eb1b3177-e522-4bae-9360-ac6856365e05_periodStartLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Outstanding at the beginning of the year (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019_9d0d62f4-2853-44ac-8d18-316e5521e191_periodEndLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Outstanding at the end of the year (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of other equity instruments outstanding in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentRegistrationStatement_7ef0d0ff-357d-49ed-b917-0bda98d78712_terseLabel_en-US" xlink:label="lab_dei_DocumentRegistrationStatement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Registration Statement</link:label>
    <link:label id="lab_dei_DocumentRegistrationStatement_label_en-US" xlink:label="lab_dei_DocumentRegistrationStatement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Registration Statement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentRegistrationStatement" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentRegistrationStatement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentRegistrationStatement" xlink:to="lab_dei_DocumentRegistrationStatement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_51f3a4a1-bbdd-4297-b26f-0449c9caf962_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee benefits</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for employee benefits [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_e98c4826-6635-4072-a266-b60f2b8e7c76_verboseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets acquired separately</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for intangible assets and goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_ab69f0fd-86a8-4209-a996-0a44f1faaebb_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue recognition</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for recognition of revenue [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_dbc99e73-7b37-44be-bd97-fc77d2a7a837_terseLabel_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level 1 of fair value hierarchy [member]</link:label>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 1 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level1OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseLiabilitiesMember_fae7ffbf-4c5a-420b-9dcd-433ac8fa4a55_terseLabel_en-US" xlink:label="lab_ifrs-full_LeaseLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities [member]</link:label>
    <link:label id="lab_ifrs-full_LeaseLiabilitiesMember_label_en-US" xlink:label="lab_ifrs-full_LeaseLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease liabilities [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseLiabilitiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilitiesMember" xlink:to="lab_ifrs-full_LeaseLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousOtherOperatingIncome_5045e282-1c9d-4ace-9fa7-558188bc8e5d_verboseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherOperatingIncome" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Miscellaneous other operating income</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousOtherOperatingIncome_4c197b40-539e-47fc-a08a-6920aaa4009d_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherOperatingIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Miscellaneous other operating income</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousOtherOperatingIncome_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherOperatingIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous other operating income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousOtherOperatingIncome" xlink:to="lab_ifrs-full_MiscellaneousOtherOperatingIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAbstract_2cad5426-ec5d-4bca-abad-33b1606eac51_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_ifrs-full_AssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="lab_ifrs-full_AssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_IcfrAuditorAttestationFlag_9e10e9ce-fbfd-40e6-b2d4-552caf1a3239_terseLabel_en-US" xlink:label="lab_dei_IcfrAuditorAttestationFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ICFR Auditor Attestation Flag</link:label>
    <link:label id="lab_dei_IcfrAuditorAttestationFlag_label_en-US" xlink:label="lab_dei_IcfrAuditorAttestationFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ICFR Auditor Attestation Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_IcfrAuditorAttestationFlag" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_IcfrAuditorAttestationFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_IcfrAuditorAttestationFlag" xlink:to="lab_dei_IcfrAuditorAttestationFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseLiabilities_ce419244-f886-4dc5-8f88-5f880e8d388c_verboseLabel_en-US" xlink:label="lab_ifrs-full_LeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amount due for settlement after 12 months shown under non-current liabilities</link:label>
    <link:label id="lab_ifrs-full_LeaseLiabilities_4812b42f-0b75-401d-9772-027a76752643_terseLabel_en-US" xlink:label="lab_ifrs-full_LeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:label id="lab_ifrs-full_LeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_LeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilities" xlink:to="lab_ifrs-full_LeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems_f3c0b101-2f7a-4364-b41d-c1c7e78f0a1c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExchangeNotesMember_6ba9d839-bee8-4072-873b-20e898b853ee_terseLabel_en-US" xlink:label="lab_pre_ExchangeNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange Notes</link:label>
    <link:label id="lab_pre_ExchangeNotesMember_label_en-US" xlink:label="lab_pre_ExchangeNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchange Notes [Member]</link:label>
    <link:label id="lab_pre_ExchangeNotesMember_documentation_en-US" xlink:label="lab_pre_ExchangeNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Exchange Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExchangeNotesMember" xlink:href="pre-20241231.xsd#pre_ExchangeNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExchangeNotesMember" xlink:to="lab_pre_ExchangeNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherNoncurrentLiabilities_e17fcd4e-2116-4754-b583-34dddc94e412_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:label id="lab_ifrs-full_OtherNoncurrentLiabilities_da0e7790-dff9-47bd-8e0b-847c2b3ce2a7_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other non-current liabilities</link:label>
    <link:label id="lab_ifrs-full_OtherNoncurrentLiabilities_label_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other non-current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherNoncurrentLiabilities" xlink:to="lab_ifrs-full_OtherNoncurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime_f619db19-d750-4d3e-a88a-84d4fe952865_terseLabel_en-US" xlink:label="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short term deposits weighted average interest rate point in time</link:label>
    <link:label id="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime_label_en-US" xlink:label="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short Term Deposits Weighted Average Interest Rate Point In Time</link:label>
    <link:label id="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime_documentation_en-US" xlink:label="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Short Term Deposits Weighted Average Interest Rate Point In Time</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime" xlink:href="pre-20241231.xsd#pre_ShortTermDepositsWeightedAverageInterestRatePointInTime"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime" xlink:to="lab_pre_ShortTermDepositsWeightedAverageInterestRatePointInTime" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfEquityAxis_390d2d86-28d8-4aad-be16-d5d10fa210d0_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfEquityAxis_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis" xlink:to="lab_ifrs-full_ComponentsOfEquityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LiabilitiesIncurredFirstPortion_49a0d423-789a-4bbb-8164-a1d2ce51fad3_terseLabel_en-US" xlink:label="lab_pre_LiabilitiesIncurredFirstPortion" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loan notes with a principal amount, first portion</link:label>
    <link:label id="lab_pre_LiabilitiesIncurredFirstPortion_label_en-US" xlink:label="lab_pre_LiabilitiesIncurredFirstPortion" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities Incurred First Portion</link:label>
    <link:label id="lab_pre_LiabilitiesIncurredFirstPortion_documentation_en-US" xlink:label="lab_pre_LiabilitiesIncurredFirstPortion" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Liabilities Incurred First Portion</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LiabilitiesIncurredFirstPortion" xlink:href="pre-20241231.xsd#pre_LiabilitiesIncurredFirstPortion"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LiabilitiesIncurredFirstPortion" xlink:to="lab_pre_LiabilitiesIncurredFirstPortion" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContinuingAndDiscontinuedOperationsAxis_3f4b6c9f-26d0-450a-8193-73695f43851b_terseLabel_en-US" xlink:label="lab_ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Continuing and discontinued operations [axis]</link:label>
    <link:label id="lab_ifrs-full_ContinuingAndDiscontinuedOperationsAxis_label_en-US" xlink:label="lab_ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Continuing and discontinued operations [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContinuingAndDiscontinuedOperationsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:to="lab_ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory_a79a8c8d-fc11-4cad-a941-91485194851e_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discontinued operations</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for discontinued operations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_f83ad6a7-3e76-427e-b1e4-e2811049046d_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_5b12f2f3-1e4b-4d25-92ea-c87f14a02dbb_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock_fd0c1079-3aab-479e-89b8-dd2373ad4249_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of carrying amounts and fair values of financial assets and financial liabilities</link:label>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Carrying Amounts And Fair Values Of Financial Assets And Financial Liabilities [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Carrying Amounts And Fair Values Of Financial Assets And Financial Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock" xlink:to="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects_3309ad1a-13fc-4185-894c-1f2657992031_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">(Loss)/earnings for the purpose of basic (loss)/earnings per share being net loss attributable to equity shareholders of the Company</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to ordinary equity holders of parent entity, used in calculating diluted earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:to="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FairValueOfAcquiredReceivables_426314f7-35ee-4e71-83a7-a65582922923_terseLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfAcquiredReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of acquired receivables</link:label>
    <link:label id="lab_ifrs-full_FairValueOfAcquiredReceivables_label_en-US" xlink:label="lab_ifrs-full_FairValueOfAcquiredReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value of acquired receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueOfAcquiredReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FairValueOfAcquiredReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FairValueOfAcquiredReceivables" xlink:to="lab_ifrs-full_FairValueOfAcquiredReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfAntidilutiveInstrumentsDomain_18b712ed-e522-4cdd-8763-d21cc5f32e9d_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Antidilutive Securities [Domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfAntidilutiveInstrumentsDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of antidilutive instruments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:to="lab_ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_4a654e3c-7ae9-49fb-8862-8d90478096df_terseLabel_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [domain]</link:label>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_label_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfCustomersInGroup_207f1116-d128-4bc0-adc5-974dd77627ff_terseLabel_en-US" xlink:label="lab_pre_NumberOfCustomersInGroup" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of largest customers</link:label>
    <link:label id="lab_pre_NumberOfCustomersInGroup_label_en-US" xlink:label="lab_pre_NumberOfCustomersInGroup" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Customers In Group</link:label>
    <link:label id="lab_pre_NumberOfCustomersInGroup_documentation_en-US" xlink:label="lab_pre_NumberOfCustomersInGroup" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Customers In Group</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfCustomersInGroup" xlink:href="pre-20241231.xsd#pre_NumberOfCustomersInGroup"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfCustomersInGroup" xlink:to="lab_pre_NumberOfCustomersInGroup" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid_4dd85834-33c0-43b9-b463-695a4bde2a4e_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued and fully paid</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid_d4bac228-dc4d-46de-b77f-966e3b70404e_periodStartLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at the beginning (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid_2ee2c30b-b625-4919-9b94-91a5688a3960_periodEndLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at the end (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid_label_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares issued and fully paid</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssuedAndFullyPaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:to="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureInEntiretyOfTradeFinancingTable_acf89273-cc7b-422d-b675-6a64c3475ca5_terseLabel_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfTradeFinancingTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Trade Financing [Table]</link:label>
    <link:label id="lab_pre_DisclosureInEntiretyOfTradeFinancingTable_label_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfTradeFinancingTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Trade Financing [Table]</link:label>
    <link:label id="lab_pre_DisclosureInEntiretyOfTradeFinancingTable_documentation_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfTradeFinancingTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Trade Financing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureInEntiretyOfTradeFinancingTable" xlink:href="pre-20241231.xsd#pre_DisclosureInEntiretyOfTradeFinancingTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureInEntiretyOfTradeFinancingTable" xlink:to="lab_pre_DisclosureInEntiretyOfTradeFinancingTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate_e1968282-cd0c-41d2-990d-19dd33e26d9f_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in associate (%)</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate_3b828f80-cde2-4e55-93db-16ad0f8527c7_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proportion&#160;of&#160;nominal&#160;value&#160;of issue&#160;capital&#160;held&#160;by&#160;the&#160;Company (%)</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate_label_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in associate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfVotingPowerHeldInAssociate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfVotingPowerHeldInAssociate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfVotingPowerHeldInAssociate" xlink:to="lab_ifrs-full_ProportionOfVotingPowerHeldInAssociate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis_7ca5f2e5-1ab3-4eb7-b81f-143a7f909cf6_terseLabel_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [axis]</link:label>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis_label_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:to="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_95e03bed-a4d9-4c26-891e-aed24db3bbcd_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition related costs</link:label>
    <link:label id="lab_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_label_en-US" xlink:label="lab_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:to="lab_ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_145b6f3e-4f6d-4fea-aac7-676f7ca2a92d_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at the end of the year/period, represented by cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_39994246-5e2e-428a-b26e-cc710c5c2f32_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_44721be0-6909-4b20-a680-dcd59929a0e5_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">As at December 31, 2023</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through share-based payment transactions, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_d0cee5e9-9de1-4baa-bd1d-47f773ba4ed9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued expenses and other liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of accrued expenses and other liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract_af29815b-cf7f-4d64-b4b8-2a471727d48e_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for:</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile profit (loss) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForReconcileProfitLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AmendmentOfTheAgreementWithPipeInvestors_13b2ad19-83c9-471b-91fa-47050abf3bea_negatedTerseLabel_en-US" xlink:label="lab_pre_AmendmentOfTheAgreementWithPipeInvestors" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Amendment Of The Agreement With Pipe Investors</link:label>
    <link:label id="lab_pre_AmendmentOfTheAgreementWithPipeInvestors_label_en-US" xlink:label="lab_pre_AmendmentOfTheAgreementWithPipeInvestors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Of The Agreement With Pipe Investors</link:label>
    <link:label id="lab_pre_AmendmentOfTheAgreementWithPipeInvestors_documentation_en-US" xlink:label="lab_pre_AmendmentOfTheAgreementWithPipeInvestors" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amendment Of The Agreement With Pipe Investors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AmendmentOfTheAgreementWithPipeInvestors" xlink:href="pre-20241231.xsd#pre_AmendmentOfTheAgreementWithPipeInvestors"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AmendmentOfTheAgreementWithPipeInvestors" xlink:to="lab_pre_AmendmentOfTheAgreementWithPipeInvestors" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_742589a3-bcfc-4ddf-a211-02afbc8ebfea_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_37fdfeb0-f8e8-4605-a710-9269db429133_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected volatility, share options granted</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected volatility, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock_2f8074ba-04ea-43b9-9734-0404236eb2c4_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of trade and other receivables</link:label>
    <link:label id="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Trade And Other Receivables [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Trade And Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock" xlink:to="lab_pre_ScheduleOfTradeAndOtherReceivablesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TrademarkAndTechnologyMember_27c12a13-2607-416e-ada1-2a23aa3af608_terseLabel_en-US" xlink:label="lab_pre_TrademarkAndTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trademark And Technology [Member]</link:label>
    <link:label id="lab_pre_TrademarkAndTechnologyMember_label_en-US" xlink:label="lab_pre_TrademarkAndTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trademark And Technology [Member]</link:label>
    <link:label id="lab_pre_TrademarkAndTechnologyMember_documentation_en-US" xlink:label="lab_pre_TrademarkAndTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trademark And Technology</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TrademarkAndTechnologyMember" xlink:href="pre-20241231.xsd#pre_TrademarkAndTechnologyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TrademarkAndTechnologyMember" xlink:to="lab_pre_TrademarkAndTechnologyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate_651d281d-4a83-436b-aea9-1819d0c489c6_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of shareholding of an equity accounted investee (%)</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in associate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInAssociate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTradeReceivables_4654618b-ebad-402f-bd07-f7a6a9f500d5_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTradeReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current trade receivables</link:label>
    <link:label id="lab_ifrs-full_CurrentTradeReceivables_81321e13-3241-4292-a12f-1ba43f6acefc_verboseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTradeReceivables" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current trade receivables</link:label>
    <link:label id="lab_ifrs-full_CurrentTradeReceivables_label_en-US" xlink:label="lab_ifrs-full_CurrentTradeReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current trade receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTradeReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTradeReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTradeReceivables" xlink:to="lab_ifrs-full_CurrentTradeReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable_b3657365-773b-487e-9b09-4cf3b52b5a2a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ActGenomicsHongKongLimitedMember_d32701e9-14a7-4afa-8efb-1f20ed219357_terseLabel_en-US" xlink:label="lab_pre_ActGenomicsHongKongLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Act Genomics Hong Kong Limited [Member]</link:label>
    <link:label id="lab_pre_ActGenomicsHongKongLimitedMember_label_en-US" xlink:label="lab_pre_ActGenomicsHongKongLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Act Genomics Hong Kong Limited [Member]</link:label>
    <link:label id="lab_pre_ActGenomicsHongKongLimitedMember_documentation_en-US" xlink:label="lab_pre_ActGenomicsHongKongLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Act Genomics Hong Kong Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ActGenomicsHongKongLimitedMember" xlink:href="pre-20241231.xsd#pre_ActGenomicsHongKongLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ActGenomicsHongKongLimitedMember" xlink:to="lab_pre_ActGenomicsHongKongLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_ContactPersonnelName_1d7ce14a-d969-4ccb-acfd-25f1915a2c93_terseLabel_en-US" xlink:label="lab_dei_ContactPersonnelName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contact Personnel Name</link:label>
    <link:label id="lab_dei_ContactPersonnelName_label_en-US" xlink:label="lab_dei_ContactPersonnelName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contact Personnel Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_ContactPersonnelName" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_ContactPersonnelName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_ContactPersonnelName" xlink:to="lab_dei_ContactPersonnelName" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RightofuseAssets_2731e045-b6a8-4bd5-af9c-6429270bb442_verboseLabel_en-US" xlink:label="lab_ifrs-full_RightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_RightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_RightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RightofuseAssets" xlink:to="lab_ifrs-full_RightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Liabilities_38cc50be-7ef6-49f1-af65-f749f40cb16d_totalLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_ifrs-full_Liabilities_a716aef4-de7d-4641-9073-60c8b05485d0_periodStartLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Liabilities at beginning of period</link:label>
    <link:label id="lab_ifrs-full_Liabilities_a6f6b59b-4a18-4276-ab5b-00355542ec23_periodEndLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Liabilities at end of period</link:label>
    <link:label id="lab_ifrs-full_Liabilities_label_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Liabilities" xlink:to="lab_ifrs-full_Liabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCost_a05a96a6-c2e8-4628-bac4-517dbb75cae4_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at amortized cost</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtAmortisedCost" xlink:to="lab_ifrs-full_FinancialAssetsAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComputerSoftwareMember_d7f915f8-006c-41a0-845f-c3fe40d69c85_terseLabel_en-US" xlink:label="lab_ifrs-full_ComputerSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Computer software [member]</link:label>
    <link:label id="lab_ifrs-full_ComputerSoftwareMember_label_en-US" xlink:label="lab_ifrs-full_ComputerSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Computer software [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComputerSoftwareMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComputerSoftwareMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComputerSoftwareMember" xlink:to="lab_ifrs-full_ComputerSoftwareMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_65080fc2-aa73-49c1-8b1f-317a4924219c_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_91d3603a-50cc-489c-8c2c-6a6913e4fd84_verboseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued (in share)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_label_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssued" xlink:to="lab_ifrs-full_NumberOfSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_2687c39d-889d-4026-a78f-af837dd411be_terseLabel_en-US" xlink:label="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Of Comprehensive Income (Loss) Of Associates And Joint Ventures Accounted For Using Equity Method</link:label>
    <link:label id="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_5696252c-a79e-4758-98e2-72028c4bcf5f_verboseLabel_en-US" xlink:label="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Share Of Comprehensive Income (Loss) Of Associates And Joint Ventures Accounted For Using Equity Method</link:label>
    <link:label id="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Of Comprehensive Income (Loss) Of Associates And Joint Ventures Accounted For Using Equity Method</link:label>
    <link:label id="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_documentation_en-US" xlink:label="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share Of Comprehensive Income (Loss) Of Associates And Joint Ventures Accounted For Using Equity Method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="pre-20241231.xsd#pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_pre_ShareOfComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilities_1923d8c1-1aff-4040-a0ca-14e398514d47_periodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at beginning of period</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_2cf9a13b-c6de-46a7-b20d-f9170e8040f3_periodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at end of period</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_f3e4d5ea-32aa-4376-8d83-e963c8672fff_totalLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilities" xlink:to="lab_ifrs-full_FinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareIncentivePlan2021Member_822cd25d-5b46-466a-8bfe-f2c7e136081d_terseLabel_en-US" xlink:label="lab_pre_ShareIncentivePlan2021Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2021 Share Incentive Plan</link:label>
    <link:label id="lab_pre_ShareIncentivePlan2021Member_label_en-US" xlink:label="lab_pre_ShareIncentivePlan2021Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Incentive Plan 2021 [Member]</link:label>
    <link:label id="lab_pre_ShareIncentivePlan2021Member_documentation_en-US" xlink:label="lab_pre_ShareIncentivePlan2021Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share Incentive Plan 2021</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareIncentivePlan2021Member" xlink:href="pre-20241231.xsd#pre_ShareIncentivePlan2021Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareIncentivePlan2021Member" xlink:to="lab_pre_ShareIncentivePlan2021Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_d05296b2-8c0b-4df2-9621-0ae951b46386_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other income and other net gains</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other operating income (expense) [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_d2d8a358-68bd-43a4-9b6c-67f7c4d2cb3e_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_b226f354-5355-415f-97a2-4d494565c69b_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, inventories</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_1f473e6d-f8d5-4cfb-b38b-aed554d8fb1b_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, inventories</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, inventories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:to="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_e084649b-7de5-48de-a8b5-b6e2e49bcfe5_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost</link:label>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_label_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross carrying amount [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossCarryingAmountMember" xlink:to="lab_ifrs-full_GrossCarryingAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_4b9a537d-b49e-4842-9547-006e425a896a_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Capital and reserves</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of share capital, reserves and other equity interest [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:to="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_1be66a6b-aff1-4388-8ffa-28df18284c51_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_7c331992-7ef0-48b5-8ac4-9a8be04949be_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Later than five years and not later than ten years [member]</link:label>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than five years and not later than ten years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:to="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice_5ff9380b-0d3c-4ea0-94f1-7e47310a235c_terseLabel_en-US" xlink:label="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury shares repurchased, weighted average share price (in US dollars per share)</link:label>
    <link:label id="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice_label_en-US" xlink:label="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Shares Repurchased, Weighted Average Share Price</link:label>
    <link:label id="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice_documentation_en-US" xlink:label="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Treasury Shares Repurchased, Weighted Average Share Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TreasurySharesRepurchasedWeightedAverageSharePrice" xlink:href="pre-20241231.xsd#pre_TreasurySharesRepurchasedWeightedAverageSharePrice"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TreasurySharesRepurchasedWeightedAverageSharePrice" xlink:to="lab_pre_TreasurySharesRepurchasedWeightedAverageSharePrice" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract_cedd759f-fae9-45ce-815e-027d0d928431_terseLabel_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits Prepayments And Other Receivables [Abstract]</link:label>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract_label_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits Prepayments And Other Receivables [Abstract]</link:label>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract_documentation_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposits Prepayments And Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepositsPrepaymentsAndOtherReceivablesAbstract" xlink:href="pre-20241231.xsd#pre_DepositsPrepaymentsAndOtherReceivablesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepositsPrepaymentsAndOtherReceivablesAbstract" xlink:to="lab_pre_DepositsPrepaymentsAndOtherReceivablesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCost_2ac3c548-a769-4ef4-bf29-843f4bc368d3_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortized cost</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations_0db2dc00-63aa-400e-b92a-52acb16e9070_terseLabel_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted loss per share from continuing operations ($ per share)</link:label>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations_label_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted earnings (loss) per share from continuing operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" xlink:to="lab_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets_4d68bd7d-838d-49a5-811c-1539d1787e8c_negatedLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">IncreaseDecreaseThroughChangesInFairValueFinancialAssets</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IncreaseDecreaseThroughChangesInFairValueFinancialAssets</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IncreaseDecreaseThroughChangesInFairValueFinancialAssets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets" xlink:to="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities_c4d2d441-92f9-4e35-82ed-2cc439b887c3_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Lease Modification, Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Lease Modification, Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Lease Modification, Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_IncreaseDecreaseThroughLeaseModificationLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepositLiabilitiesCurrent_99bead22-4061-4426-bf78-b596138acca8_terseLabel_en-US" xlink:label="lab_pre_DepositLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposit Liabilities Current</link:label>
    <link:label id="lab_pre_DepositLiabilitiesCurrent_label_en-US" xlink:label="lab_pre_DepositLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposit Liabilities Current</link:label>
    <link:label id="lab_pre_DepositLiabilitiesCurrent_documentation_en-US" xlink:label="lab_pre_DepositLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposit Liabilities Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepositLiabilitiesCurrent" xlink:href="pre-20241231.xsd#pre_DepositLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepositLiabilitiesCurrent" xlink:to="lab_pre_DepositLiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows_d0007938-27eb-4f4e-ad0e-087b78e720ce_terseLabel_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount due to a related company</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows_label_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities, Undiscounted Cash Flows</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows_documentation_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities, Undiscounted Cash Flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows" xlink:href="pre-20241231.xsd#pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows" xlink:to="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember_a0215347-138b-42cd-9dbd-f8f76b08c58e_terseLabel_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Losses On Property Plant And Equipment [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember_label_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Losses On Property Plant And Equipment [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember_documentation_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Losses On Property Plant And Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember" xlink:href="pre-20241231.xsd#pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember" xlink:to="lab_pre_RestructuringChargesImpairmentLossesOnPropertyPlantAndEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_7ba9f100-e4a3-4dc9-a35b-d65a57cdd780_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IndefinitePeriodMember_66bddb1e-5cfc-45c9-a5a6-2758fa619679_terseLabel_en-US" xlink:label="lab_pre_IndefinitePeriodMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Indefinite Period [Member]</link:label>
    <link:label id="lab_pre_IndefinitePeriodMember_label_en-US" xlink:label="lab_pre_IndefinitePeriodMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Indefinite Period [Member]</link:label>
    <link:label id="lab_pre_IndefinitePeriodMember_documentation_en-US" xlink:label="lab_pre_IndefinitePeriodMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Indefinite Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IndefinitePeriodMember" xlink:href="pre-20241231.xsd#pre_IndefinitePeriodMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IndefinitePeriodMember" xlink:to="lab_pre_IndefinitePeriodMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BottomOfRangeMember_20a5e04b-d331-4fd0-8128-5d6d8ededcb7_terseLabel_en-US" xlink:label="lab_ifrs-full_BottomOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bottom</link:label>
    <link:label id="lab_ifrs-full_BottomOfRangeMember_label_en-US" xlink:label="lab_ifrs-full_BottomOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bottom of range [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BottomOfRangeMember" xlink:to="lab_ifrs-full_BottomOfRangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_905ca0b9-f482-45e2-b901-5a605d0d371e_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_c05ad7d7-5b02-4d1d-bf3b-3f0ef6f7743c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from financing activities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from financing activities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_1335fb6b-7759-486d-8290-b9467404bbc9_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) relating to origination and reversal of temporary differences</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) relating to origination and reversal of temporary differences</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities_adb969c6-10f0-491f-9be5-f4bfdd1ddd88_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Interest Paid, Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Interest Paid, Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Interest Paid, Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_IncreaseDecreaseThroughInterestPaidLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncomeTaxExpense_486c0bac-8ced-48d9-9c86-e6c17e03304d_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for income tax expense</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncomeTaxExpense_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for income tax expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:to="lab_ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeAxis_5efdeac4-57c1-44f0-a6f4-c557380680da_terseLabel_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:label id="lab_srt_RangeAxis_label_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeAxis" xlink:to="lab_srt_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContractLiabilitiesAbstract_8dfaa3c8-8a50-492a-8537-d9df9b9bf41a_terseLabel_en-US" xlink:label="lab_ifrs-full_ContractLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract liabilities</link:label>
    <link:label id="lab_ifrs-full_ContractLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_ContractLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContractLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContractLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContractLiabilitiesAbstract" xlink:to="lab_ifrs-full_ContractLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfOrdinarySharesDomain_63fbbc4f-aa8b-47b8-b284-03d7df71130e_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfOrdinarySharesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of ordinary shares [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfOrdinarySharesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfOrdinarySharesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of ordinary shares [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="lab_ifrs-full_ClassesOfOrdinarySharesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_9d82e077-752c-4eeb-b69c-3043899307fa_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of intangible assets, classified as investing activities</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of intangible assets, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain_b5170617-eec0-4b0e-8488-5ec829abbd85_terseLabel_en-US" xlink:label="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Attribution of expenses by nature to their function [domain]</link:label>
    <link:label id="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain_label_en-US" xlink:label="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Attribution of expenses by nature to their function [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesAxis_af87fb99-7f94-4190-ade5-44027d730a6b_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations_70655b79-2c97-42ba-b43a-cc258d519c04_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in cash and cash equivalents, discontinued operations</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in cash and cash equivalents, discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory_0cb4a5dc-8484-4425-ba99-3c98d646db7e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discontinued operation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of discontinued operations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LackOfMarketabilityMeasurementInputMember_f0135ef6-db4e-4af2-b5d2-670363aab18d_terseLabel_en-US" xlink:label="lab_pre_LackOfMarketabilityMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lack of marketability, measurement input</link:label>
    <link:label id="lab_pre_LackOfMarketabilityMeasurementInputMember_label_en-US" xlink:label="lab_pre_LackOfMarketabilityMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lack Of Marketability, Measurement Input [Member]</link:label>
    <link:label id="lab_pre_LackOfMarketabilityMeasurementInputMember_documentation_en-US" xlink:label="lab_pre_LackOfMarketabilityMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Lack of Marketability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LackOfMarketabilityMeasurementInputMember" xlink:href="pre-20241231.xsd#pre_LackOfMarketabilityMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LackOfMarketabilityMeasurementInputMember" xlink:to="lab_pre_LackOfMarketabilityMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_TitleOfIndividualAxis_4e478fd9-31cc-4cdd-b204-85b088663e6f_terseLabel_en-US" xlink:label="lab_srt_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of Individual [Axis]</link:label>
    <link:label id="lab_srt_TitleOfIndividualAxis_label_en-US" xlink:label="lab_srt_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title and Position [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_TitleOfIndividualAxis" xlink:to="lab_srt_TitleOfIndividualAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity_9793a2a6-8c28-482f-a2f4-226a71e95919_negatedTerseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Change In Fair Value Of Liabilities For Puttable Financial Instrument, Equity</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Change In Fair Value Of Liabilities For Puttable Financial Instrument, Equity</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Change in Fair Value of Liabilities for Puttable Financial Instrument, Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity" xlink:to="lab_pre_IncreaseDecreaseThroughChangeInFairValueOfLiabilitiesForPuttableFinancialInstrumentEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions_7b89e596-9027-4eb6-b8da-c2029849ff42_terseLabel_en-US" xlink:label="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts due from related companies</link:label>
    <link:label id="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions_label_en-US" xlink:label="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts Receivable From Related Company, Related Party Transactions</link:label>
    <link:label id="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions_documentation_en-US" xlink:label="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amounts Receivable From Related Company, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions" xlink:href="pre-20241231.xsd#pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions" xlink:to="lab_pre_AmountsReceivableFromRelatedCompanyRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_35c343bb-d1e0-4bd4-bde0-f875b3bcedca_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on change in fair value of derivatives</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on change in fair value of derivatives</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:to="lab_ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BusinessCombinationsAxis_2af968c8-fac9-4569-ad2d-bff7e0f1f4a0_terseLabel_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:label id="lab_ifrs-full_BusinessCombinationsAxis_label_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsAxis" xlink:to="lab_ifrs-full_BusinessCombinationsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_d1f15a0b-2285-4e18-9d6f-0dc64ab20ed5_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Disposals, intangible assets other than goodwill</link:label>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockExchangeDomain_b6afb37c-9731-4364-b2bd-c7d6da8c72ce_terseLabel_en-US" xlink:label="lab_pre_StockExchangeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Exchange [Domain]</link:label>
    <link:label id="lab_pre_StockExchangeDomain_label_en-US" xlink:label="lab_pre_StockExchangeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Exchange [Domain]</link:label>
    <link:label id="lab_pre_StockExchangeDomain_documentation_en-US" xlink:label="lab_pre_StockExchangeDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock Exchange</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockExchangeDomain" xlink:href="pre-20241231.xsd#pre_StockExchangeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockExchangeDomain" xlink:to="lab_pre_StockExchangeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember_11e36615-f132-4429-8f68-35d426925249_terseLabel_en-US" xlink:label="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A ordinary shares after reverse stock split</link:label>
    <link:label id="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember_label_en-US" xlink:label="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class A Ordinary Shares After Reverse Stock Split [Member]</link:label>
    <link:label id="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember_documentation_en-US" xlink:label="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class A Ordinary Shares After Reverse Stock Split</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassAOrdinarySharesAfterReverseStockSplitMember" xlink:href="pre-20241231.xsd#pre_ClassAOrdinarySharesAfterReverseStockSplitMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassAOrdinarySharesAfterReverseStockSplitMember" xlink:to="lab_pre_ClassAOrdinarySharesAfterReverseStockSplitMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepreciationChargeAbstract_1af6b814-74f8-46c2-a4a4-f4b4ad6c31ee_terseLabel_en-US" xlink:label="lab_pre_DepreciationChargeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation Charge [Abstract]</link:label>
    <link:label id="lab_pre_DepreciationChargeAbstract_label_en-US" xlink:label="lab_pre_DepreciationChargeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation Charge [Abstract]</link:label>
    <link:label id="lab_pre_DepreciationChargeAbstract_documentation_en-US" xlink:label="lab_pre_DepreciationChargeAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Depreciation Charge</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepreciationChargeAbstract" xlink:href="pre-20241231.xsd#pre_DepreciationChargeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepreciationChargeAbstract" xlink:to="lab_pre_DepreciationChargeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_8597dfa0-d1e5-4e60-9676-7e4a6b424ae9_terseLabel_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_label_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits_0d44bfd7-551b-43b3-87ff-ec44c9c968d0_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, termination benefits</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, termination benefits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorCustomersAxis_7100d311-d23b-40d6-bbf7-39353ed064aa_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorCustomersAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major customers [axis]</link:label>
    <link:label id="lab_ifrs-full_MajorCustomersAxis_label_en-US" xlink:label="lab_ifrs-full_MajorCustomersAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major customers [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorCustomersAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorCustomersAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorCustomersAxis" xlink:to="lab_ifrs-full_MajorCustomersAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDividendIncome_38a37bd6-e9db-4357-aa69-815edb3cc89e_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDividendIncome" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Depreciation of property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDividendIncome_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDividendIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for dividend income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDividendIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDividendIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDividendIncome" xlink:to="lab_ifrs-full_AdjustmentsForDividendIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_5b5d36a8-3025-4943-8d3f-5d1c0a52b92d_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average fair value at measurement date, share options granted</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average fair value at measurement date, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:to="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SecurityDetailsDomain_cf968165-9b3a-4b20-be7f-7161cfdf9972_terseLabel_en-US" xlink:label="lab_pre_SecurityDetailsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Details [Domain]</link:label>
    <link:label id="lab_pre_SecurityDetailsDomain_label_en-US" xlink:label="lab_pre_SecurityDetailsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SecurityDetailsDomain</link:label>
    <link:label id="lab_pre_SecurityDetailsDomain_documentation_en-US" xlink:label="lab_pre_SecurityDetailsDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SecurityDetailsDomain</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SecurityDetailsDomain" xlink:href="pre-20241231.xsd#pre_SecurityDetailsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SecurityDetailsDomain" xlink:to="lab_pre_SecurityDetailsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates_ce133571-df22-4040-bc13-f19d84c4f1c5_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:to="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CarryingAmountMember_41b9d389-b3f8-4d00-9dbd-de21b4741866_terseLabel_en-US" xlink:label="lab_ifrs-full_CarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:label id="lab_ifrs-full_CarryingAmountMember_label_en-US" xlink:label="lab_ifrs-full_CarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountMember" xlink:to="lab_ifrs-full_CarryingAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PreventionGeneticTestingMember_625322fb-4716-468f-a56f-b113e4973cc1_terseLabel_en-US" xlink:label="lab_pre_PreventionGeneticTestingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sales of laboratory testing kit</link:label>
    <link:label id="lab_pre_PreventionGeneticTestingMember_label_en-US" xlink:label="lab_pre_PreventionGeneticTestingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prevention - Genetic Testing [Member]</link:label>
    <link:label id="lab_pre_PreventionGeneticTestingMember_documentation_en-US" xlink:label="lab_pre_PreventionGeneticTestingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Prevention - Genetic Testing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PreventionGeneticTestingMember" xlink:href="pre-20241231.xsd#pre_PreventionGeneticTestingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PreventionGeneticTestingMember" xlink:to="lab_pre_PreventionGeneticTestingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_f0de9bd0-5582-4f93-8112-a4b06de6b290_negatedLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Trade and other payables recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other payables recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_81a64aa5-c0b3-447e-a171-453db5a438b9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from financing activities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from financing activities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockholdersEquityNoteStockSplitConversionRatio_b9a4c031-3998-425b-adf9-436b37d3309c_terseLabel_en-US" xlink:label="lab_pre_StockholdersEquityNoteStockSplitConversionRatio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stockholders equity note stock split conversion ratio</link:label>
    <link:label id="lab_pre_StockholdersEquityNoteStockSplitConversionRatio_label_en-US" xlink:label="lab_pre_StockholdersEquityNoteStockSplitConversionRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders Equity Note Stock Split Conversion Ratio</link:label>
    <link:label id="lab_pre_StockholdersEquityNoteStockSplitConversionRatio_documentation_en-US" xlink:label="lab_pre_StockholdersEquityNoteStockSplitConversionRatio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stockholders Equity Note Stock Split Conversion Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockholdersEquityNoteStockSplitConversionRatio" xlink:href="pre-20241231.xsd#pre_StockholdersEquityNoteStockSplitConversionRatio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockholdersEquityNoteStockSplitConversionRatio" xlink:to="lab_pre_StockholdersEquityNoteStockSplitConversionRatio" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments_747e153d-3c72-4f8c-9742-dd511ca239d0_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through conversion of convertible instruments, equity</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through conversion of convertible instruments, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReceivablesFromContractsWithCustomers_391b445e-35eb-455a-a300-ac8256aa30aa_terseLabel_en-US" xlink:label="lab_ifrs-full_ReceivablesFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Receivables from contracts with customers</link:label>
    <link:label id="lab_ifrs-full_ReceivablesFromContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_ReceivablesFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivables from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReceivablesFromContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReceivablesFromContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReceivablesFromContractsWithCustomers" xlink:to="lab_ifrs-full_ReceivablesFromContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsAxis_66f2944b-91fd-42e5-b216-c195c7fc4695_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossProfit_8e95aa1e-f5af-43b2-8ba8-460e45974bdd_totalLabel_en-US" xlink:label="lab_ifrs-full_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Gross profit</link:label>
    <link:label id="lab_ifrs-full_GrossProfit_28bd9ea1-8230-4ef0-a4fd-79c347847ceb_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross profit</link:label>
    <link:label id="lab_ifrs-full_GrossProfit_label_en-US" xlink:label="lab_ifrs-full_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross profit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossProfit" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossProfit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossProfit" xlink:to="lab_ifrs-full_GrossProfit" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetAssetsLiabilities_e966453f-2e4b-4aa1-afd8-221be64071e4_totalLabel_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Assets (liabilities)</link:label>
    <link:label id="lab_ifrs-full_NetAssetsLiabilities_label_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets (liabilities)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetAssetsLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NetAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetAssetsLiabilities" xlink:to="lab_ifrs-full_NetAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_7bf5d3c1-81cb-473d-9a17-08783858e52c_terseLabel_en-US" xlink:label="lab_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in liabilities arising from financing activities [abstract]</link:label>
    <link:label id="lab_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changes in liabilities arising from financing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:to="lab_ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_830d1826-5fcc-4901-8c16-60c698a8bb73_terseLabel_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions other than through business combinations, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_a4e2bf65-91ca-42c3-8f24-3881bf602364_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for foreign currency translation [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits_22bf73b7-bab3-4d29-a502-f56f7193df9f_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Issuance Of Restricted Share Units</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Issuance Of Restricted Share Units</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Issuance Of Restricted Share Units</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits" xlink:to="lab_pre_IncreaseDecreaseThroughIssuanceOfRestrictedShareUnits" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyAxis_9e962652-fbb2-4d95-b86d-99e000fe1896_terseLabel_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyAxis_label_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems_d534e5ca-cd09-4f79-91cd-af7258ee0388_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_99dd0753-c111-4b31-b412-7be69200c727_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of property, plant and equipment [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of property, plant and equipment [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentLiabilitiesAbstract_a79c6fc3-0036-41da-9773-dd59479c2c19_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_CurrentLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="lab_ifrs-full_CurrentLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_b7e9ebcf-dcc4-41ef-a9fd-753e40e4d97d_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) recognised in profit or loss</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_MaterialAccountingPoliciesTable_467a9010-0515-4af9-925f-c5b7a24b2e65_terseLabel_en-US" xlink:label="lab_pre_MaterialAccountingPoliciesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Material Accounting Policies [Table]</link:label>
    <link:label id="lab_pre_MaterialAccountingPoliciesTable_label_en-US" xlink:label="lab_pre_MaterialAccountingPoliciesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Material Accounting Policies [Table]</link:label>
    <link:label id="lab_pre_MaterialAccountingPoliciesTable_documentation_en-US" xlink:label="lab_pre_MaterialAccountingPoliciesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Material Accounting Policies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_MaterialAccountingPoliciesTable" xlink:href="pre-20241231.xsd#pre_MaterialAccountingPoliciesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_MaterialAccountingPoliciesTable" xlink:to="lab_pre_MaterialAccountingPoliciesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Goodwill_536e126a-2caa-425c-96ef-4ebac8f806d1_terseLabel_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_Goodwill_30a0160c-5d8e-4ca8-9f61-e0634916a643_periodStartLabel_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Goodwill at period start</link:label>
    <link:label id="lab_ifrs-full_Goodwill_0b6839d8-aa7c-4f66-81bb-0ac775bc743a_periodEndLabel_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Goodwill at period end</link:label>
    <link:label id="lab_ifrs-full_Goodwill_label_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Goodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Goodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Goodwill" xlink:to="lab_ifrs-full_Goodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_68384ae0-bd66-49e4-90b4-c110b53beeb9_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock_45a3c93c-0b05-43e4-a1c3-f19753677e58_verboseLabel_en-US" xlink:label="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of fair value of Artisan's identifiable net assets acquired</link:label>
    <link:label id="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurred [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurred</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock" xlink:to="lab_pre_DisclosureOfFairValueOfArtisansIdentifiableNetAssetsAcquiredWithTheAmountExpensedAsIncurredTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PlanName1Axis_ff14f04c-1f4c-4eaa-895f-b4ab98da1810_terseLabel_en-US" xlink:label="lab_pre_PlanName1Axis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:label id="lab_pre_PlanName1Axis_label_en-US" xlink:label="lab_pre_PlanName1Axis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name1 [Axis]</link:label>
    <link:label id="lab_pre_PlanName1Axis_documentation_en-US" xlink:label="lab_pre_PlanName1Axis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Plan Name1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PlanName1Axis" xlink:href="pre-20241231.xsd#pre_PlanName1Axis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PlanName1Axis" xlink:to="lab_pre_PlanName1Axis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock_ac5dc766-a326-41f2-83a8-2ac43fb63023_terseLabel_en-US" xlink:label="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of cash and cash equivalents</link:label>
    <link:label id="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock_label_en-US" xlink:label="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IfrsScheduleOfCashAndCashEquivalents [Table Text Block]</link:label>
    <link:label id="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock_documentation_en-US" xlink:label="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IfrsScheduleOfCashAndCashEquivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:href="pre-20241231.xsd#pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:to="lab_pre_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_be801ed7-0086-479f-b388-f954b2203a6d_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other tax effects for reconciliation between accounting profit and tax expense (income)</link:label>
    <link:label id="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other tax effects for reconciliation between accounting profit and tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:to="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_f15cdad6-4d3c-4ff6-95a8-27e2efa91a4f_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries [domain]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:to="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDepreciationExpense_bcca85dc-3549-48b0-b6ac-9df89fa154c7_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation of right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDepreciationExpense_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for depreciation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDepreciationExpense" xlink:to="lab_ifrs-full_AdjustmentsForDepreciationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate_15887336-2cfd-4aba-a7f0-d87b14974bbb_negatedLabel_en-US" xlink:label="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accrued Expenses Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expenses Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expenses Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpensesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_AccruedExpensesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpensesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_AccruedExpensesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassAOrdinarySharesMember_a160f01b-c065-4c11-b5eb-57538f563f17_terseLabel_en-US" xlink:label="lab_pre_ClassAOrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A ordinary shares</link:label>
    <link:label id="lab_pre_ClassAOrdinarySharesMember_label_en-US" xlink:label="lab_pre_ClassAOrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class A Ordinary Shares [Member]</link:label>
    <link:label id="lab_pre_ClassAOrdinarySharesMember_documentation_en-US" xlink:label="lab_pre_ClassAOrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class A Ordinary Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassAOrdinarySharesMember" xlink:href="pre-20241231.xsd#pre_ClassAOrdinarySharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassAOrdinarySharesMember" xlink:to="lab_pre_ClassAOrdinarySharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes_eb9c4152-d6ed-4332-89d3-e7e3959aaae5_terseLabel_en-US" xlink:label="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share issued upon conversion of exchange loan notes (in shares)</link:label>
    <link:label id="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes_label_en-US" xlink:label="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Share Issued Upon Conversion Of Exchange Loan Notes</link:label>
    <link:label id="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes_documentation_en-US" xlink:label="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Share Issued Upon Conversion Of Exchange Loan Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes" xlink:href="pre-20241231.xsd#pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes" xlink:to="lab_pre_NumberOfShareIssuedUponConversionOfExchangeLoanNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract_fc33d007-7899-4af3-9a59-d3d4c48bb6a6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PercentageOfEntitysReceivables_030d20ce-f16e-494a-b782-96cf40745118_terseLabel_en-US" xlink:label="lab_pre_PercentageOfEntitysReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of total trade receivables (%)</link:label>
    <link:label id="lab_pre_PercentageOfEntitysReceivables_label_en-US" xlink:label="lab_pre_PercentageOfEntitysReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Entitys Receivables</link:label>
    <link:label id="lab_pre_PercentageOfEntitysReceivables_documentation_en-US" xlink:label="lab_pre_PercentageOfEntitysReceivables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage Of Entitys Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PercentageOfEntitysReceivables" xlink:href="pre-20241231.xsd#pre_PercentageOfEntitysReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PercentageOfEntitysReceivables" xlink:to="lab_pre_PercentageOfEntitysReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LegalEntityAxis_2f480414-9e1d-4bee-a070-1459e1aaece3_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:label id="lab_dei_LegalEntityAxis_label_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LegalEntityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentShellCompanyReport_6a00fdb1-44da-422f-9731-cf2b9b4acfdc_terseLabel_en-US" xlink:label="lab_dei_DocumentShellCompanyReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Shell Company Report</link:label>
    <link:label id="lab_dei_DocumentShellCompanyReport_label_en-US" xlink:label="lab_dei_DocumentShellCompanyReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Shell Company Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentShellCompanyReport" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentShellCompanyReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentShellCompanyReport" xlink:to="lab_dei_DocumentShellCompanyReport" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnBorrowings_d3fa856a-f344-450e-a265-47e15ff2c229_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest expense on borrowings</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnBorrowings_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnBorrowings" xlink:to="lab_ifrs-full_InterestExpenseOnBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_774c7d0d-0a74-47af-9021-7a29fea1e7be_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based payments</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for share-based payment transactions [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets_aa5b420e-5651-403e-b71f-9d3be4f437b4_negatedLabel_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Disposals, property, plant and equipment including right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries_da53a0ce-c03c-44b4-ae45-9a58c6242263_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through change in equity of subsidiaries, equity</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through change in equity of subsidiaries, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract_1247dd6d-5eae-46e3-b16d-a4aba65c0353_terseLabel_en-US" xlink:label="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-Current Assets Held For Sale And Discontinued Operations [Abstract]</link:label>
    <link:label id="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract_label_en-US" xlink:label="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Current Assets Held For Sale And Discontinued Operations [Abstract]</link:label>
    <link:label id="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract_documentation_en-US" xlink:label="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Current Assets Held For Sale And Discontinued Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract" xlink:href="pre-20241231.xsd#pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract" xlink:to="lab_pre_NonCurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossOfCombinedEntity_53f8a7ce-f40e-41c8-89ec-6e0415f0bd32_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossOfCombinedEntity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) of combined entity as if combination occurred at beginning of period</link:label>
    <link:label id="lab_ifrs-full_ProfitLossOfCombinedEntity_label_en-US" xlink:label="lab_ifrs-full_ProfitLossOfCombinedEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) of combined entity as if combination occurred at beginning of period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossOfCombinedEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossOfCombinedEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossOfCombinedEntity" xlink:to="lab_ifrs-full_ProfitLossOfCombinedEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PreferenceSharesLiabilitiesMember_5f535f41-6334-437f-91ef-71bf7b714168_terseLabel_en-US" xlink:label="lab_pre_PreferenceSharesLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares liabilities</link:label>
    <link:label id="lab_pre_PreferenceSharesLiabilitiesMember_label_en-US" xlink:label="lab_pre_PreferenceSharesLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference Shares Liabilities [Member]</link:label>
    <link:label id="lab_pre_PreferenceSharesLiabilitiesMember_documentation_en-US" xlink:label="lab_pre_PreferenceSharesLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preference Shares Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PreferenceSharesLiabilitiesMember" xlink:href="pre-20241231.xsd#pre_PreferenceSharesLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PreferenceSharesLiabilitiesMember" xlink:to="lab_pre_PreferenceSharesLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_3a5d9e32-919f-4d05-bb3d-6f9c3654b55f_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_57b0d18a-4b6e-4bd7-b092-6c21ebf6ceeb_terseLabel_en-US" xlink:label="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract</link:label>
    <link:label id="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_label_en-US" xlink:label="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract</link:label>
    <link:label id="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_documentation_en-US" xlink:label="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:href="pre-20241231.xsd#pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:to="lab_pre_OtherChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1_ebf6b2af-4fe5-409e-936e-36e68b45be3c_terseLabel_en-US" xlink:label="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of the RSUs united granted (in US dollars per share)</link:label>
    <link:label id="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1_label_en-US" xlink:label="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Weighted Average Grant Date Fair Value1</link:label>
    <link:label id="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1_documentation_en-US" xlink:label="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Weighted Average Grant Date Fair Value1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1" xlink:href="pre-20241231.xsd#pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1" xlink:to="lab_pre_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract_2619e33c-fde4-40bd-b6ae-7a16fe34d0f0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interests in associates</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of associates [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensation_bca91b8f-b183-45e1-9dcd-b35fe5e524c1_totalLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensation" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensation_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensation" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensation" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock_393602ea-ff8b-4d48-b6fe-8fca32c28e17_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of changes in goodwill explanatory</link:label>
    <link:label id="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Changes In Goodwill Explanatory [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Changes In Goodwill Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock" xlink:to="lab_pre_DisclosureOfChangesInGoodwillExplanatoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DiagnosticsMember_1e32f5e0-50ee-4a4c-8a79-b0266a1f2ebe_terseLabel_en-US" xlink:label="lab_pre_DiagnosticsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diagnostics [Member]</link:label>
    <link:label id="lab_pre_DiagnosticsMember_label_en-US" xlink:label="lab_pre_DiagnosticsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diagnostics [Member]</link:label>
    <link:label id="lab_pre_DiagnosticsMember_documentation_en-US" xlink:label="lab_pre_DiagnosticsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Diagnostics</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DiagnosticsMember" xlink:href="pre-20241231.xsd#pre_DiagnosticsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DiagnosticsMember" xlink:to="lab_pre_DiagnosticsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities_34d4625e-4db6-42dd-b5b6-8b9e4ab41ce6_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through obtaining or losing control of subsidiaries or other businesses, liabilities arising from financing activities</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through obtaining or losing control of subsidiaries or other businesses, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems_b934af58-a902-4117-9870-25078ea3656a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of associates [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of associates [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain_d29f7600-e946-4fc1-b2ea-5987aa77c2fb_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_e5a44cf5-e461-4ddb-b706-b697d1dfe39a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General Information</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of general information about financial statements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseByNatureAbstract_label_en-US" xlink:label="lab_ifrs-full_ExpenseByNatureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expenses by nature [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseByNatureAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseByNatureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseByNatureAbstract" xlink:to="lab_ifrs-full_ExpenseByNatureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory_09eb0f0e-a523-43df-b221-e02e0f1b3aae_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interests in equity-accounted investees</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for investment in associates and joint ventures [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_0a9d2bc7-323b-4609-b8ab-427c0e8b6bc9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of estimated useful lives of property and equipment</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_e9539ac5-06f9-43fc-80ed-605d471cbe6d_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current trade payables</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current trade payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:to="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables_79b5bce0-9303-401f-93d4-94671fef10b5_verboseLabel_en-US" xlink:label="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued (in shares)</link:label>
    <link:label id="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables_label_en-US" xlink:label="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Instruments Or Interests Issued Or Issuables</link:label>
    <link:label id="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables_documentation_en-US" xlink:label="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Instruments Or Interests Issued Or Issuables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables" xlink:href="pre-20241231.xsd#pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables" xlink:to="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract_dbf513ee-f8b0-4849-b454-f5ed7114925b_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in deferred tax liability (asset) [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in deferred tax liability (asset) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfVotingRightsHeldInJointVenture_c51bfc49-572d-4089-9504-2c9f2587d6cf_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion&#160;of&#160;nominal&#160;value&#160;of issue&#160;capital&#160;held&#160;by&#160;the&#160;Company (%)</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingRightsHeldInJointVenture_label_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in joint venture</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfVotingRightsHeldInJointVenture"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:to="lab_ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WarrantLiabilitiesAbstract_521f57e1-078f-4771-8de1-b62408a8915a_terseLabel_en-US" xlink:label="lab_pre_WarrantLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrant liabilities [abstract]</link:label>
    <link:label id="lab_pre_WarrantLiabilitiesAbstract_label_en-US" xlink:label="lab_pre_WarrantLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Liabilities [Abstract]</link:label>
    <link:label id="lab_pre_WarrantLiabilitiesAbstract_documentation_en-US" xlink:label="lab_pre_WarrantLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Warrant Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WarrantLiabilitiesAbstract" xlink:href="pre-20241231.xsd#pre_WarrantLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WarrantLiabilitiesAbstract" xlink:to="lab_pre_WarrantLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefund_4045ec7a-0398-402b-9b48-7279644b4bc5_negatedLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at beginning of the year/period</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefund_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income taxes paid (refund)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefund" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefund"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidRefund" xlink:to="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLoss_ec76eb59-adfd-488c-a2b5-ad8acf38cf15_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) for the year/period</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_19360905-9396-42d9-9e70-28e989651a42_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issue of shares</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_b804e772-bc00-4d73-a008-58faaede2665_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_label_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="lab_ifrs-full_ProfitLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsPaidToNoncontrollingInterests_904bf788-2d77-4b7e-9c97-5985ba294db4_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid to non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidToNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_DividendsPaidToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends paid to non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidToNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsPaidToNoncontrollingInterests" xlink:to="lab_ifrs-full_DividendsPaidToNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_6f8f7b6c-b8d5-4e61-b05d-59bc1952ab61_verboseLabel_en-US" xlink:label="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Identifiable assets acquired (liabilities assumed)</link:label>
    <link:label id="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_054013c3-a6d8-444f-8476-8cb3374be755_totalLabel_en-US" xlink:label="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Identifiable assets acquired (liabilities assumed)</link:label>
    <link:label id="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_fba687c5-c298-40eb-92f0-931df20991da_negatedLabel_en-US" xlink:label="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Fair value of identifiable net assets</link:label>
    <link:label id="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_label_en-US" xlink:label="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Identifiable assets acquired (liabilities assumed)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:to="lab_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities_3e55447e-794e-40a2-8c9d-f94c1e6c53e8_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in contract liabilities</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock_c0f173b8-2f41-4a7f-ba31-1fbf7831a0d7_terseLabel_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of accrued expenses and other liabilities</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities [Table Text Block]</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:href="pre-20241231.xsd#pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:to="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TreasurySharesMember_b09580cf-3548-41aa-a12c-3157681cfcb8_terseLabel_en-US" xlink:label="lab_ifrs-full_TreasurySharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury shares [member]</link:label>
    <link:label id="lab_ifrs-full_TreasurySharesMember_label_en-US" xlink:label="lab_ifrs-full_TreasurySharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury shares [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasurySharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasurySharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TreasurySharesMember" xlink:to="lab_ifrs-full_TreasurySharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment_8713f802-10b3-4867-8666-c3809dcddf78_terseLabel_en-US" xlink:label="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of instruments (in shares)</link:label>
    <link:label id="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment_label_en-US" xlink:label="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Instruments Or Interests Issued Or Issuable, Purchase Of Equity Method Investment</link:label>
    <link:label id="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment_documentation_en-US" xlink:label="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Instruments Or Interests Issued Or Issuable, Purchase Of Equity Method Investment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment" xlink:href="pre-20241231.xsd#pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment" xlink:to="lab_pre_NumberOfInstrumentsOrInterestsIssuedOrIssuablePurchaseOfEquityMethodInvestment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis_caa595a1-a2dd-4dcc-8149-ebc52dae087d_terseLabel_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [axis]</link:label>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis_label_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TimingOfTransferOfGoodsOrServicesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:to="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_720f0ab7-e1ce-4d68-8b27-7fa858ee20fc_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major components of tax expense (income) [abstract]</link:label>
    <link:label id="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major components of tax expense (income) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_fa68b3e6-0998-4a97-974d-a888af0dab51_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of acquisition date fair value of each major class of consideration transferred</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities_057dfa59-7915-42a4-982d-c4677a112492_negatedLabel_en-US" xlink:label="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payments Of Interest On Lease Liabilities Classified As Financing Activities</link:label>
    <link:label id="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments Of Interest On Lease Liabilities Classified As Financing Activities</link:label>
    <link:label id="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments Of Interest On Lease Liabilities Classified As Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="pre-20241231.xsd#pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="lab_pre_PaymentsOfInterestOnLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_c6fc8dc8-9352-4148-a307-00cf790394a2_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange differences on translation of foreign operations</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, net of tax, exchange differences on translation of foreign operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain_4233a468-67c1-40a9-9b1b-10ef4eceaf0c_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Associates [domain]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Associates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SignificantInvestmentsInAssociatesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:to="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_1f5ef46c-b701-48b4-b16b-78a338f57099_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of share options exercisable (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options exercisable in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_8ce79a2e-0ebf-4106-ad2b-1ff7b9c34da5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesAxis_4245e4b7-66bb-4ee6-8b30-7c20fce1cdad_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfInterestRatesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:to="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_f66feef3-97fa-48d7-ae08-b4ed241e0944_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on financial assets at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentAccountingStandard_4c883064-47ff-4239-a4e0-51530b039a90_terseLabel_en-US" xlink:label="lab_dei_DocumentAccountingStandard" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Accounting Standard</link:label>
    <link:label id="lab_dei_DocumentAccountingStandard_label_en-US" xlink:label="lab_dei_DocumentAccountingStandard" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Accounting Standard</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentAccountingStandard" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentAccountingStandard"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentAccountingStandard" xlink:to="lab_dei_DocumentAccountingStandard" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember_8efadb90-4701-45a2-ae0d-48274c7ce0ac_terseLabel_en-US" xlink:label="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer relationship</link:label>
    <link:label id="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember_label_en-US" xlink:label="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer-related intangible assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CustomerrelatedIntangibleAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:to="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefundAbstract_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefundAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income taxes paid (refund) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidRefundAbstract" xlink:to="lab_ifrs-full_IncomeTaxesPaidRefundAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExercisePriceShareOptionsGranted2019_8b304737-aa57-48b4-8965-979507581923_terseLabel_en-US" xlink:label="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercise price (in USD per share)</link:label>
    <link:label id="lab_ifrs-full_ExercisePriceShareOptionsGranted2019_label_en-US" xlink:label="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercise price, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExercisePriceShareOptionsGranted2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:to="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill_5898942e-e092-43da-91f9-34e1f08a6b3b_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, intangible assets and goodwill</link:label>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement_811d01bf-c97c-4d7e-9464-e53f3db36468_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercisable (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of other equity instruments exercisable in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfShareIssuedForAdvisors_660233c7-6fc6-4bc8-bc1a-4f899228644a_terseLabel_en-US" xlink:label="lab_pre_NumberOfShareIssuedForAdvisors" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued for advisors (in shares)</link:label>
    <link:label id="lab_pre_NumberOfShareIssuedForAdvisors_label_en-US" xlink:label="lab_pre_NumberOfShareIssuedForAdvisors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Share Issued For Advisors</link:label>
    <link:label id="lab_pre_NumberOfShareIssuedForAdvisors_documentation_en-US" xlink:label="lab_pre_NumberOfShareIssuedForAdvisors" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Share Issued For Advisors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfShareIssuedForAdvisors" xlink:href="pre-20241231.xsd#pre_NumberOfShareIssuedForAdvisors"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfShareIssuedForAdvisors" xlink:to="lab_pre_NumberOfShareIssuedForAdvisors" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract_9d92b13a-5a92-4c87-849b-2c9f63e7b8a3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SharePremiumMember_8df997f4-be2e-4420-be3b-1f55a8a61581_terseLabel_en-US" xlink:label="lab_ifrs-full_SharePremiumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share premium</link:label>
    <link:label id="lab_ifrs-full_SharePremiumMember_label_en-US" xlink:label="lab_ifrs-full_SharePremiumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share premium [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremiumMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremiumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SharePremiumMember" xlink:to="lab_ifrs-full_SharePremiumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShare_cad8a782-745a-4473-a365-6282fd5a5220_terseLabel_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted loss per share ($ per share)</link:label>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShare_label_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted earnings (loss) per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DilutedEarningsLossPerShare" xlink:to="lab_ifrs-full_DilutedEarningsLossPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DirectorsRemunerationExpense_ffad9e4d-d9d7-4244-a7ff-eefb76b8fcff_terseLabel_en-US" xlink:label="lab_ifrs-full_DirectorsRemunerationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Directors' remuneration expense</link:label>
    <link:label id="lab_ifrs-full_DirectorsRemunerationExpense_label_en-US" xlink:label="lab_ifrs-full_DirectorsRemunerationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Directors' remuneration expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DirectorsRemunerationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DirectorsRemunerationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DirectorsRemunerationExpense" xlink:to="lab_ifrs-full_DirectorsRemunerationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate_01e28524-458a-4eae-8372-dc490fbc508f_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Allowance account for credit losses of financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_9dbabd62-18e8-4019-8d4d-077766977b1c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnusedTaxLossesMember_5b059cfe-5e32-4045-b353-8989c247037d_terseLabel_en-US" xlink:label="lab_ifrs-full_UnusedTaxLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unused tax losses [member]</link:label>
    <link:label id="lab_ifrs-full_UnusedTaxLossesMember_label_en-US" xlink:label="lab_ifrs-full_UnusedTaxLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unused tax losses [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnusedTaxLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnusedTaxLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnusedTaxLossesMember" xlink:to="lab_ifrs-full_UnusedTaxLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_deb614a4-936b-41b2-a9dc-d745de157bdc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis of preparation of consolidated financial statements and material accounting policy information</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of material accounting policy information [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:to="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment_4ea3a188-cc6a-48f9-a3fc-56a87265003f_terseLabel_en-US" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated useful lives</link:label>
    <link:label id="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Useful life measured as period of time, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:to="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems_04eab185-0ad5-4ef2-a61e-b53516cf2378_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory_8a648967-7f0b-48c8-8c40-b3aaf5c9ac4e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of deferred taxes [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract_e355044f-0749-4637-b222-7ee7b974ec3b_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract" xlink:to="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PaymentForPurchaseOfTreasuryShares_1ff8ff5b-046a-4f75-8287-57c8f3fb0733_negatedLabel_en-US" xlink:label="lab_pre_PaymentForPurchaseOfTreasuryShares" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">PaymentForPurchaseOfTreasuryShares</link:label>
    <link:label id="lab_pre_PaymentForPurchaseOfTreasuryShares_label_en-US" xlink:label="lab_pre_PaymentForPurchaseOfTreasuryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PaymentForPurchaseOfTreasuryShares</link:label>
    <link:label id="lab_pre_PaymentForPurchaseOfTreasuryShares_documentation_en-US" xlink:label="lab_pre_PaymentForPurchaseOfTreasuryShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PaymentForPurchaseOfTreasuryShares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PaymentForPurchaseOfTreasuryShares" xlink:href="pre-20241231.xsd#pre_PaymentForPurchaseOfTreasuryShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PaymentForPurchaseOfTreasuryShares" xlink:to="lab_pre_PaymentForPurchaseOfTreasuryShares" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentOfNonControllingInterestsGoodwill_8977b5c5-e886-406d-a992-077e64b7f5d1_negatedTerseLabel_en-US" xlink:label="lab_pre_AdjustmentOfNonControllingInterestsGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Adjustment Of Non Controlling Interests, Goodwill</link:label>
    <link:label id="lab_pre_AdjustmentOfNonControllingInterestsGoodwill_label_en-US" xlink:label="lab_pre_AdjustmentOfNonControllingInterestsGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment Of Non Controlling Interests, Goodwill</link:label>
    <link:label id="lab_pre_AdjustmentOfNonControllingInterestsGoodwill_documentation_en-US" xlink:label="lab_pre_AdjustmentOfNonControllingInterestsGoodwill" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustment Of Non Controlling Interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentOfNonControllingInterestsGoodwill" xlink:href="pre-20241231.xsd#pre_AdjustmentOfNonControllingInterestsGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentOfNonControllingInterestsGoodwill" xlink:to="lab_pre_AdjustmentOfNonControllingInterestsGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RedeemableWarrantsMember_4c9ff674-1e60-401a-a62a-3219ae43e23f_terseLabel_en-US" xlink:label="lab_pre_RedeemableWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redeemable Warrants</link:label>
    <link:label id="lab_pre_RedeemableWarrantsMember_label_en-US" xlink:label="lab_pre_RedeemableWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Redeemable Warrants [Member]</link:label>
    <link:label id="lab_pre_RedeemableWarrantsMember_documentation_en-US" xlink:label="lab_pre_RedeemableWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Redeemable Warrants</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RedeemableWarrantsMember" xlink:href="pre-20241231.xsd#pre_RedeemableWarrantsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RedeemableWarrantsMember" xlink:to="lab_pre_RedeemableWarrantsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations_671611a6-6fd5-42be-ab0f-3322c673bb63_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities, discontinued operations</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities, discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FixturesAndFittingsMember_a801b32d-a767-48a7-aff7-0286f9223597_terseLabel_en-US" xlink:label="lab_ifrs-full_FixturesAndFittingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Factory and factory equipment</link:label>
    <link:label id="lab_ifrs-full_FixturesAndFittingsMember_label_en-US" xlink:label="lab_ifrs-full_FixturesAndFittingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixtures and fittings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FixturesAndFittingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FixturesAndFittingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FixturesAndFittingsMember" xlink:to="lab_ifrs-full_FixturesAndFittingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_HongkongInterbankOfferRateMember_f81c999e-f4b7-4c68-8419-4c9da126a6a0_terseLabel_en-US" xlink:label="lab_pre_HongkongInterbankOfferRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hongkong Interbank Offer Rate (%)</link:label>
    <link:label id="lab_pre_HongkongInterbankOfferRateMember_label_en-US" xlink:label="lab_pre_HongkongInterbankOfferRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hongkong Interbank Offer Rate [Member]</link:label>
    <link:label id="lab_pre_HongkongInterbankOfferRateMember_documentation_en-US" xlink:label="lab_pre_HongkongInterbankOfferRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Hongkong Interbank Offer Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_HongkongInterbankOfferRateMember" xlink:href="pre-20241231.xsd#pre_HongkongInterbankOfferRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_HongkongInterbankOfferRateMember" xlink:to="lab_pre_HongkongInterbankOfferRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NonControllingInterestsAbstract_5b5027b2-a52e-414f-8f9f-d12942535c90_terseLabel_en-US" xlink:label="lab_pre_NonControllingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests [Abstract]</link:label>
    <link:label id="lab_pre_NonControllingInterestsAbstract_label_en-US" xlink:label="lab_pre_NonControllingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-controlling interests [Abstract]</link:label>
    <link:label id="lab_pre_NonControllingInterestsAbstract_documentation_en-US" xlink:label="lab_pre_NonControllingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-controlling interests [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NonControllingInterestsAbstract" xlink:href="pre-20241231.xsd#pre_NonControllingInterestsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NonControllingInterestsAbstract" xlink:to="lab_pre_NonControllingInterestsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019_1cd5f6fb-c086-4a51-97fc-860d3f090f4c_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Forfeited (in US dollar per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of other equity instruments forfeited in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_15e21166-f341-4d68-9eae-775b23b3daa1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of intangible assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AuditInformationLineItems_cdf57276-ec5d-47d3-b257-9f9a51f658bf_terseLabel_en-US" xlink:label="lab_pre_AuditInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Audit Information [Line Items]</link:label>
    <link:label id="lab_pre_AuditInformationLineItems_label_en-US" xlink:label="lab_pre_AuditInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Audit Information [Line Items]</link:label>
    <link:label id="lab_pre_AuditInformationLineItems_documentation_en-US" xlink:label="lab_pre_AuditInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Audit Information</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AuditInformationLineItems" xlink:href="pre-20241231.xsd#pre_AuditInformationLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AuditInformationLineItems" xlink:to="lab_pre_AuditInformationLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems_7f9c8303-84c2-4ced-bb77-762230893b4e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfInventoriesAbstract_34c36729-5112-418f-9e14-c729230b0bdb_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfInventoriesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:label id="lab_ifrs-full_ClassesOfInventoriesAbstract_label_en-US" xlink:label="lab_ifrs-full_ClassesOfInventoriesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of current inventories [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfInventoriesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfInventoriesAbstract" xlink:to="lab_ifrs-full_ClassesOfInventoriesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted_fc47c227-33bb-4f39-ae61-ca41809ccaae_terseLabel_en-US" xlink:label="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Likelihood Of Achieving Redemption Event, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Likelihood Of Achieving Redemption Event, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Likelihood Of Achieving Redemption Event, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted" xlink:to="lab_pre_LikelihoodOfAchievingRedemptionEventOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SampleReturnPeriod_3d81c6b6-0f58-465d-93ef-a632112b1b78_terseLabel_en-US" xlink:label="lab_pre_SampleReturnPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sample return period</link:label>
    <link:label id="lab_pre_SampleReturnPeriod_label_en-US" xlink:label="lab_pre_SampleReturnPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sample Return, Period</link:label>
    <link:label id="lab_pre_SampleReturnPeriod_documentation_en-US" xlink:label="lab_pre_SampleReturnPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sample Return, Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SampleReturnPeriod" xlink:href="pre-20241231.xsd#pre_SampleReturnPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SampleReturnPeriod" xlink:to="lab_pre_SampleReturnPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted_4df27636-bb0a-4e93-b4fa-c0b7610c6d8a_terseLabel_en-US" xlink:label="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk Free Interest Rate, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk Free Interest Rate, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Risk Free Interest Rate, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_RiskFreeInterestRateOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted" xlink:to="lab_pre_RiskFreeInterestRateOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019_f9a7421d-e046-4179-8e58-a5bc13796881_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted (in dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of other equity instruments granted in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract_1821385c-56c1-47dd-b85a-ce9e212b9f7d_terseLabel_en-US" xlink:label="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Amortized Cost [Abstract]</link:label>
    <link:label id="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract_label_en-US" xlink:label="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Amortized Cost [Abstract]</link:label>
    <link:label id="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract_documentation_en-US" xlink:label="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Amortized Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FinancialLiabilitiesAtAmortizedCostAbstract" xlink:href="pre-20241231.xsd#pre_FinancialLiabilitiesAtAmortizedCostAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FinancialLiabilitiesAtAmortizedCostAbstract" xlink:to="lab_pre_FinancialLiabilitiesAtAmortizedCostAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentMember_6c446cd6-ef64-43ab-993e-a7b794211353_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentMember_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentMember" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember_8d5e5527-5515-404a-9e36-e18a9921c5b8_terseLabel_en-US" xlink:label="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer Health - Health And Wellness Solutions [Member]</link:label>
    <link:label id="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember_label_en-US" xlink:label="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer Health - Health And Wellness Solutions [Member]</link:label>
    <link:label id="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember_documentation_en-US" xlink:label="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Customer Health - Health And Wellness Solutions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CustomerHealthHealthAndWellnessSolutionsMember" xlink:href="pre-20241231.xsd#pre_CustomerHealthHealthAndWellnessSolutionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CustomerHealthHealthAndWellnessSolutionsMember" xlink:to="lab_pre_CustomerHealthHealthAndWellnessSolutionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_feb6e603-f7b3-40eb-a793-5769d104bd39_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of transactions with other related parties</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForInterestIncome_84e05a81-f116-4e60-9649-e23cea9866c8_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForInterestIncome" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForInterestIncome_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForInterestIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for interest income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForInterestIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForInterestIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForInterestIncome" xlink:to="lab_ifrs-full_AdjustmentsForInterestIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfWarrantIssuedUponConversion_76a3cc00-b8a3-4df6-82bd-9c255f20baab_terseLabel_en-US" xlink:label="lab_pre_NumberOfWarrantIssuedUponConversion" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of warrant issued upon conversion (in shares)</link:label>
    <link:label id="lab_pre_NumberOfWarrantIssuedUponConversion_label_en-US" xlink:label="lab_pre_NumberOfWarrantIssuedUponConversion" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Warrant Issued Upon Conversion</link:label>
    <link:label id="lab_pre_NumberOfWarrantIssuedUponConversion_documentation_en-US" xlink:label="lab_pre_NumberOfWarrantIssuedUponConversion" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Warrant Issued Upon Conversion</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfWarrantIssuedUponConversion" xlink:href="pre-20241231.xsd#pre_NumberOfWarrantIssuedUponConversion"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfWarrantIssuedUponConversion" xlink:to="lab_pre_NumberOfWarrantIssuedUponConversion" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_d081058b-36bc-49df-899b-b57ada46f135_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue_0e9ca2b0-b9a6-4309-a55b-df9827381a7b_terseLabel_en-US" xlink:label="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate fair value of the RSUs united granted</link:label>
    <link:label id="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue_label_en-US" xlink:label="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Fair Value Of Other Equity Instruments Granted In Share Based Payment Arrangement Value</link:label>
    <link:label id="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue_documentation_en-US" xlink:label="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted Average Fair Value Of Other Equity Instruments Granted In Share Based Payment Arrangement Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue" xlink:href="pre-20241231.xsd#pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue" xlink:to="lab_pre_WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangementValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_0d0d2764-db02-4f9d-a9ec-a29921c614ac_negatedLabel_en-US" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payments of lease liabilities, classified as financing activities</link:label>
    <link:label id="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments of lease liabilities, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee_4b343a0c-0a52-47f5-ae11-c3ccd5d8c4c0_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Shares For Investment In An Equity-Accounted Investee</link:label>
    <link:label id="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee_label_en-US" xlink:label="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Shares For Investment In An Equity-Accounted Investee</link:label>
    <link:label id="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Shares For Investment In An Equity-Accounted Investee</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee" xlink:to="lab_pre_IncreaseDecreaseInSharesForInvestmentInAnEquityAccountedInvestee" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity_36eb6e87-8255-4cf4-b407-95b671a813b3_verboseLabel_en-US" xlink:label="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Decrease Through Reclassification To Preference Shares Liabilities, Equity</link:label>
    <link:label id="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity_label_en-US" xlink:label="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Reclassification To Preference Shares Liabilities, Equity</link:label>
    <link:label id="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity_documentation_en-US" xlink:label="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Reclassification To Preference Shares Liabilities, Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity" xlink:href="pre-20241231.xsd#pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity" xlink:to="lab_pre_DecreaseThroughReclassificationToPreferenceSharesLiabilitiesEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnallocatedAmountsMember_edddf9cb-1f5a-47ea-a87e-ce068f8d3b37_terseLabel_en-US" xlink:label="lab_ifrs-full_UnallocatedAmountsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unallocated amounts [member]</link:label>
    <link:label id="lab_ifrs-full_UnallocatedAmountsMember_label_en-US" xlink:label="lab_ifrs-full_UnallocatedAmountsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unallocated amounts [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnallocatedAmountsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnallocatedAmountsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnallocatedAmountsMember" xlink:to="lab_ifrs-full_UnallocatedAmountsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TradeReceivablesPeriod_ae088c59-e5d7-4850-b6fe-a0e961da9b80_terseLabel_en-US" xlink:label="lab_pre_TradeReceivablesPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade receivables period</link:label>
    <link:label id="lab_pre_TradeReceivablesPeriod_label_en-US" xlink:label="lab_pre_TradeReceivablesPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade Receivables, Period</link:label>
    <link:label id="lab_pre_TradeReceivablesPeriod_documentation_en-US" xlink:label="lab_pre_TradeReceivablesPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trade Receivables, Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TradeReceivablesPeriod" xlink:href="pre-20241231.xsd#pre_TradeReceivablesPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TradeReceivablesPeriod" xlink:to="lab_pre_TradeReceivablesPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory_1e05fb55-414d-477e-939c-42bff5c272fc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pending Litigation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other provisions, contingent liabilities and contingent assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_1ac5e4ec-3d15-4aa4-bfd0-b19e590d8f13_negatedLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ProceedsFromRedemptionOfShortTermDeposits_3dd983d9-5a61-48d2-8d96-83ad4a7f33e4_terseLabel_en-US" xlink:label="lab_pre_ProceedsFromRedemptionOfShortTermDeposits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds From Redemption of Short-Term Deposits</link:label>
    <link:label id="lab_pre_ProceedsFromRedemptionOfShortTermDeposits_label_en-US" xlink:label="lab_pre_ProceedsFromRedemptionOfShortTermDeposits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds From Redemption of Short-Term Deposits</link:label>
    <link:label id="lab_pre_ProceedsFromRedemptionOfShortTermDeposits_documentation_en-US" xlink:label="lab_pre_ProceedsFromRedemptionOfShortTermDeposits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proceeds From Redemption of Short-Term Deposits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ProceedsFromRedemptionOfShortTermDeposits" xlink:href="pre-20241231.xsd#pre_ProceedsFromRedemptionOfShortTermDeposits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ProceedsFromRedemptionOfShortTermDeposits" xlink:to="lab_pre_ProceedsFromRedemptionOfShortTermDeposits" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_33ef41b3-57c6-4a6e-8f9e-1d014cb90520_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_d2bcc13a-fe9c-45aa-99b1-a819ba7339f3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial instruments at fair value through profit or loss [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousEquityAbstract_5ed01ead-1aa9-4247-ba93-4e77685fc2a0_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital and reserves</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousEquityAbstract_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousEquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousEquityAbstract" xlink:to="lab_ifrs-full_MiscellaneousEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeographicalAreasAxis_d436a9cb-05ff-42d2-bdc0-8cac54589d10_terseLabel_en-US" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:label id="lab_ifrs-full_GeographicalAreasAxis_label_en-US" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasAxis" xlink:to="lab_ifrs-full_GeographicalAreasAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_edc6fc43-80cf-4ceb-9cf9-f3c1f2a4f2ee_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of issued share capital per class A and B</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentAssets_c6327b8e-3f86-4585-8a5b-7862657ea4ff_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Current Assets</link:label>
    <link:label id="lab_ifrs-full_CurrentAssets_f5ff3deb-4ff5-4108-8c69-6b3313144f15_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current assets</link:label>
    <link:label id="lab_ifrs-full_CurrentAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="lab_ifrs-full_CurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets_bfc8d4ae-862a-4f5f-acf6-a02bd485f5cc_negatedLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Additions from acquisition</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Additions From Acquisitions, Financial Assets</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Additions From Acquisitions, Financial Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets" xlink:to="lab_pre_IncreaseDecreaseThroughAdditionsFromAcquisitionsFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityExTransitionPeriod_6b6d5026-bbf3-490b-8aa9-d6b8cdf559fc_terseLabel_en-US" xlink:label="lab_dei_EntityExTransitionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Ex Transition Period</link:label>
    <link:label id="lab_dei_EntityExTransitionPeriod_label_en-US" xlink:label="lab_dei_EntityExTransitionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Ex Transition Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityExTransitionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityExTransitionPeriod" xlink:to="lab_dei_EntityExTransitionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PreferenceSharesMember_59414aa3-ea0b-450e-9e42-1ada92d8cdd0_terseLabel_en-US" xlink:label="lab_ifrs-full_PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares</link:label>
    <link:label id="lab_ifrs-full_PreferenceSharesMember_label_en-US" xlink:label="lab_ifrs-full_PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference shares [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PreferenceSharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PreferenceSharesMember" xlink:to="lab_ifrs-full_PreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OrdinarySharesAfterReverseStockMember_b9f76f67-76bc-4519-80c0-f43a115aad1f_terseLabel_en-US" xlink:label="lab_pre_OrdinarySharesAfterReverseStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ordinary shares after reverse stock</link:label>
    <link:label id="lab_pre_OrdinarySharesAfterReverseStockMember_label_en-US" xlink:label="lab_pre_OrdinarySharesAfterReverseStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ordinary Shares After Reverse Stock [Member]</link:label>
    <link:label id="lab_pre_OrdinarySharesAfterReverseStockMember_documentation_en-US" xlink:label="lab_pre_OrdinarySharesAfterReverseStockMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Ordinary Shares After Reverse Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OrdinarySharesAfterReverseStockMember" xlink:href="pre-20241231.xsd#pre_OrdinarySharesAfterReverseStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OrdinarySharesAfterReverseStockMember" xlink:to="lab_pre_OrdinarySharesAfterReverseStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_3215818c-8843-4e43-b726-8a5746fb3a24_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_539e10e9-77cf-4a51-915d-a9a7306af590_totalLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other equity interest</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FairValueOfConsiderationAbstract_b580dd38-3455-4b36-b4b5-e2017af5b71e_terseLabel_en-US" xlink:label="lab_pre_FairValueOfConsiderationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Of Consideration [Abstract]</link:label>
    <link:label id="lab_pre_FairValueOfConsiderationAbstract_label_en-US" xlink:label="lab_pre_FairValueOfConsiderationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Of Consideration [Abstract]</link:label>
    <link:label id="lab_pre_FairValueOfConsiderationAbstract_documentation_en-US" xlink:label="lab_pre_FairValueOfConsiderationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value Of Consideration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FairValueOfConsiderationAbstract" xlink:href="pre-20241231.xsd#pre_FairValueOfConsiderationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FairValueOfConsiderationAbstract" xlink:to="lab_pre_FairValueOfConsiderationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_d0c79261-6970-41ab-85d3-ec1438696d40_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Number of stock options exercised (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options exercised in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationLineItems_23da45f4-a422-4d3c-94ad-a023cec63f76_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationLineItems_label_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationLineItems_documentation_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReverseRecapitalizationLineItems" xlink:href="pre-20241231.xsd#pre_DisclosureOfReverseRecapitalizationLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReverseRecapitalizationLineItems" xlink:to="lab_pre_DisclosureOfReverseRecapitalizationLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted_701e835e-af5d-4ce7-a906-02aa50dbde70_verboseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of restricted shares granted (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted_0d7fd58d-6b49-4909-a310-ad904d1aeb0c_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of other equity instruments granted in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:to="lab_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_3b01b5e1-6977-447c-bdf9-5bc64fa24b7d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Events</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of events after reporting period [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized_0d19bdce-1417-4d7a-ae60-28912b779c6d_terseLabel_en-US" xlink:label="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax Effect Of Deductible Temporary Difference Not Recognized</link:label>
    <link:label id="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized_label_en-US" xlink:label="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Of Deductible Temporary Difference Not Recognized</link:label>
    <link:label id="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized_documentation_en-US" xlink:label="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Of Deductible Temporary Difference Not Recognized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized" xlink:href="pre-20241231.xsd#pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized" xlink:to="lab_pre_TaxEffectOfDeductibleTemporaryDifferenceNotRecognized" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_c6b6cc16-a131-4421-b8ea-4f1a600cc273_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, property, plant and equipment including right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsDomain_0e46c833-c231-47b4-a23c-6ca9af9a4754_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised_c4fd9193-3afb-4dcf-a6dd-f20c0ae65814_terseLabel_en-US" xlink:label="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (Loss) Exchange Difference On Deferred Tax Recognised</link:label>
    <link:label id="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised_label_en-US" xlink:label="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) Exchange Difference On Deferred Tax Recognised</link:label>
    <link:label id="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised_documentation_en-US" xlink:label="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gain (Loss) Exchange Difference On Deferred Tax Recognised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised" xlink:href="pre-20241231.xsd#pre_GainLossExchangeDifferenceOnDeferredTaxRecognised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised" xlink:to="lab_pre_GainLossExchangeDifferenceOnDeferredTaxRecognised" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesAuthorised_d6eca5a2-4731-4ee8-b506-e5237df315e6_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesAuthorised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares authorised (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesAuthorised_label_en-US" xlink:label="lab_ifrs-full_NumberOfSharesAuthorised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares authorised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesAuthorised" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesAuthorised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesAuthorised" xlink:to="lab_ifrs-full_NumberOfSharesAuthorised" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromContinuingOperations_06c3fce1-577d-43a0-a76c-e55e6864c445_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) from continuing operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromContinuingOperations_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from continuing operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperations" xlink:to="lab_ifrs-full_ProfitLossFromContinuingOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_664ed276-e502-42ee-9569-c01a6a7fe66f_negatedTerseLabel_en-US" xlink:label="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Cancelled (in shares)</link:label>
    <link:label id="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_label_en-US" xlink:label="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Other Equity Instruments Cancelled In Share Based-Payment Arrangement</link:label>
    <link:label id="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_documentation_en-US" xlink:label="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Other Equity Instruments Cancelled In Share Based-Payment Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:href="pre-20241231.xsd#pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:to="lab_pre_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherRelatedPartiesMember_5e756f34-e29f-41c2-8085-95ab7b99b63a_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherRelatedPartiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other related parties</link:label>
    <link:label id="lab_ifrs-full_OtherRelatedPartiesMember_label_en-US" xlink:label="lab_ifrs-full_OtherRelatedPartiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other related parties [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherRelatedPartiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherRelatedPartiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherRelatedPartiesMember" xlink:to="lab_ifrs-full_OtherRelatedPartiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_3ea04688-aee0-454e-8bf7-c1e0814f9065_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets_4c8b6d43-7ca9-422c-9434-d4dad647ac45_verboseLabel_en-US" xlink:label="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease) increase in cash and cash equivalents</link:label>
    <link:label id="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets_label_en-US" xlink:label="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Decrease Increase In Other Noncurrent Assets</link:label>
    <link:label id="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets_documentation_en-US" xlink:label="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Decrease Increase In Other Noncurrent Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets" xlink:href="pre-20241231.xsd#pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets" xlink:to="lab_pre_AdjustmentsForDecreaseIncreaseInOtherNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_f13a1a89-8748-4e77-94c8-7031f7836082_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share of profit (loss) of associates and joint ventures accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_1b2b5a41-0986-48ab-bc2f-ee02834b0392_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Share of profit (loss) of associates and joint ventures accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of profit (loss) of associates and joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_4bf3366c-beda-4bfe-81dd-fa87dc9f2e48_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock_aca33cbc-c32d-4185-97cb-7e62784599c4_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of income tax credit</link:label>
    <link:label id="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Components Of Income Tax Expense Benefit1 [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Components Of Income Tax Expense Benefit1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock" xlink:to="lab_pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentsAxis_299ee6fb-2a57-4158-abc6-0c3d699c80e5_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [axis]</link:label>
    <link:label id="lab_ifrs-full_SegmentsAxis_label_en-US" xlink:label="lab_ifrs-full_SegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsAxis" xlink:to="lab_ifrs-full_SegmentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_279503c1-8a76-4b8d-bf35-c3f062bd4e19_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries [axis]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:to="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MotorVehiclesMember_44e9daa6-7a4a-49fa-9537-56f80a664939_terseLabel_en-US" xlink:label="lab_ifrs-full_MotorVehiclesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Motor vehicles [member]</link:label>
    <link:label id="lab_ifrs-full_MotorVehiclesMember_label_en-US" xlink:label="lab_ifrs-full_MotorVehiclesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Motor vehicles [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MotorVehiclesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MotorVehiclesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MotorVehiclesMember" xlink:to="lab_ifrs-full_MotorVehiclesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_f8500c21-6256-4b17-817b-4ba1be779ea2_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leases</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for leases [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMajorCustomersLineItems_7e2a26e6-ce3d-494a-b1cb-d9bb49eca4eb_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of major customers [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMajorCustomersLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of major customers [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMajorCustomersLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:to="lab_ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_2db93505-059e-47c8-b152-c1e1455e8500_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory_fc33090a-8553-4df2-8d35-1b21cb78f29e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of goodwill balance allocated to the CGUs</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information for cash-generating units [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract_79746ed1-9988-41e8-a10f-c381e5ec50ef_terseLabel_en-US" xlink:label="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair values of financial instruments</link:label>
    <link:label id="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract_label_en-US" xlink:label="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Risk Management And Fair Value Of Financial Instruments [Abstract]</link:label>
    <link:label id="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract_documentation_en-US" xlink:label="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Risk Management And Fair Value Of Financial Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract" xlink:href="pre-20241231.xsd#pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract" xlink:to="lab_pre_FinancialRiskManagementAndFairValueOfFinancialInstrumentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted_520f00b4-af81-4ded-bad4-fac884f853dd_terseLabel_en-US" xlink:label="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Likelihood Of Achieving Liquidity Event, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Likelihood Of Achieving Liquidity Event, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Likelihood Of Achieving Liquidity Event, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted" xlink:to="lab_pre_LikelihoodOfAchievingLiquidityEventOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationRightofuseAssets_b06bc389-622f-4a09-aff5-fb0d0b3c86b1_verboseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_DepreciationRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_DepreciationRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationRightofuseAssets" xlink:to="lab_ifrs-full_DepreciationRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseholdImprovementsMember_e28c99e5-8566-415b-ab38-5734c4d211cb_terseLabel_en-US" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leasehold improvements</link:label>
    <link:label id="lab_ifrs-full_LeaseholdImprovementsMember_label_en-US" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leasehold improvements [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseholdImprovementsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseholdImprovementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseholdImprovementsMember" xlink:to="lab_ifrs-full_LeaseholdImprovementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract_b5071e23-613c-4700-b65a-ed017ea49987_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of income tax credit</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of accounting profit multiplied by applicable tax rates [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:to="lab_ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromDividends_e8fb6fe7-8d2b-44bf-87cf-77fb82d7b883_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromDividends" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividend income</link:label>
    <link:label id="lab_ifrs-full_RevenueFromDividends_label_en-US" xlink:label="lab_ifrs-full_RevenueFromDividends" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividend income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromDividends" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromDividends"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromDividends" xlink:to="lab_ifrs-full_RevenueFromDividends" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract_e0ceb331-fbf6-42e6-a5c5-1603f90327e0_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Miscellaneous non-current assets [abstract]</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous non-current assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousNoncurrentAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:to="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RemainingPortionMember_2ecd2d43-0d92-4e3c-9e64-d5f2880c5bf3_terseLabel_en-US" xlink:label="lab_pre_RemainingPortionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining Portion (%)</link:label>
    <link:label id="lab_pre_RemainingPortionMember_label_en-US" xlink:label="lab_pre_RemainingPortionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Remaining Portion [Member]</link:label>
    <link:label id="lab_pre_RemainingPortionMember_documentation_en-US" xlink:label="lab_pre_RemainingPortionMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Remaining Portion</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RemainingPortionMember" xlink:href="pre-20241231.xsd#pre_RemainingPortionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RemainingPortionMember" xlink:to="lab_pre_RemainingPortionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors_03163b15-b5ee-46f2-82ee-eabe002ade39_terseLabel_en-US" xlink:label="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments For Share-based Payment Expenses In Relation To Issuance Of Shares To Advisors</link:label>
    <link:label id="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors_label_en-US" xlink:label="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Share-based Payment Expenses In Relation To Issuance Of Shares To Advisors</link:label>
    <link:label id="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors_documentation_en-US" xlink:label="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Share-based Payment Expenses In Relation To Issuance Of Shares To Advisors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors" xlink:href="pre-20241231.xsd#pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors" xlink:to="lab_pre_AdjustmentsForShareBasedPaymentExpensesInRelationToIssuanceOfSharesToAdvisors" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals_477ab1a8-88ae-42cd-b9b4-2bfb8fa91365_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term employee benefits accruals</link:label>
    <link:label id="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals_label_en-US" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term employee benefits accruals</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermEmployeeBenefitsAccruals"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:to="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows_fee7c219-6b30-41c3-8071-87ef7ec47bdd_terseLabel_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount due to a related company</link:label>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows_label_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument, Undiscounted Cash Flows</link:label>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows_documentation_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument, Undiscounted Cash Flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows" xlink:href="pre-20241231.xsd#pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows" xlink:to="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrumentUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesDomain_3593b867-1c75-4b4a-9400-8a6665815fab_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of related parties [domain]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of related parties [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory_15a7fe03-019b-42a8-92ec-e9dbaadd8432_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Approval of Consolidated Financial Statements</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of authorisation of financial statements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment_34a076a7-d9ac-41b3-be0f-38d47489ebbb_terseLabel_en-US" xlink:label="lab_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Write-downs (reversals of write-downs) of property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Write-downs (reversals of write-downs) of property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SellingAndDistributionExpenses_905be36e-fbb3-40b3-aa38-4b86481eabf3_negatedLabel_en-US" xlink:label="lab_pre_SellingAndDistributionExpenses" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other gain and losses</link:label>
    <link:label id="lab_pre_SellingAndDistributionExpenses_c2a684be-a7a3-4720-942c-960a6f284b35_negatedTerseLabel_en-US" xlink:label="lab_pre_SellingAndDistributionExpenses" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Selling And Distribution Expenses</link:label>
    <link:label id="lab_pre_SellingAndDistributionExpenses_label_en-US" xlink:label="lab_pre_SellingAndDistributionExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling And Distribution Expenses</link:label>
    <link:label id="lab_pre_SellingAndDistributionExpenses_documentation_en-US" xlink:label="lab_pre_SellingAndDistributionExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Selling And Distribution Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SellingAndDistributionExpenses" xlink:href="pre-20241231.xsd#pre_SellingAndDistributionExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SellingAndDistributionExpenses" xlink:to="lab_pre_SellingAndDistributionExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpenseAndOtherLiabilitiesMember_af6bf94d-828a-4acc-a2ea-13ed3e89d301_terseLabel_en-US" xlink:label="lab_pre_AccruedExpenseAndOtherLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued Expense And Other Liabilities [Member]</link:label>
    <link:label id="lab_pre_AccruedExpenseAndOtherLiabilitiesMember_label_en-US" xlink:label="lab_pre_AccruedExpenseAndOtherLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expense And Other Liabilities [Member]</link:label>
    <link:label id="lab_pre_AccruedExpenseAndOtherLiabilitiesMember_documentation_en-US" xlink:label="lab_pre_AccruedExpenseAndOtherLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpenseAndOtherLiabilitiesMember" xlink:href="pre-20241231.xsd#pre_AccruedExpenseAndOtherLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpenseAndOtherLiabilitiesMember" xlink:to="lab_pre_AccruedExpenseAndOtherLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueAbstract_0d51f768-f896-456d-9d46-d2de78dfbbaf_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue [abstract]</link:label>
    <link:label id="lab_ifrs-full_RevenueAbstract_label_en-US" xlink:label="lab_ifrs-full_RevenueAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueAbstract" xlink:to="lab_ifrs-full_RevenueAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis_9196cb50-35b2-4681-89d9-14823deea7e9_terseLabel_en-US" xlink:label="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Attribution of expenses by nature to their function [axis]</link:label>
    <link:label id="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis_label_en-US" xlink:label="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Attribution of expenses by nature to their function [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:to="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory_35fec52c-2623-4b45-baef-c6c5c25beed2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of fair value of RSUs and assumptions</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of indirect measurement of fair value of goods or services received, other equity instruments granted during period [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_63b110fa-ee93-44ad-aee0-d116f1488ad9_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_35e0389d-4e19-4d74-8502-364e1d3ab8eb_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AuditorLocation_316fb9b9-d34b-4243-95aa-605b298e545e_terseLabel_en-US" xlink:label="lab_dei_AuditorLocation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Location</link:label>
    <link:label id="lab_dei_AuditorLocation_label_en-US" xlink:label="lab_dei_AuditorLocation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Location</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorLocation" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorLocation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorLocation" xlink:to="lab_dei_AuditorLocation" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SeriesCPreferenceSharesMember_6a1d3410-1a66-42e7-8462-24003648175d_terseLabel_en-US" xlink:label="lab_pre_SeriesCPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Series C preference shares</link:label>
    <link:label id="lab_pre_SeriesCPreferenceSharesMember_label_en-US" xlink:label="lab_pre_SeriesCPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series C Preference Shares [Member]</link:label>
    <link:label id="lab_pre_SeriesCPreferenceSharesMember_documentation_en-US" xlink:label="lab_pre_SeriesCPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series C Preference Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SeriesCPreferenceSharesMember" xlink:href="pre-20241231.xsd#pre_SeriesCPreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SeriesCPreferenceSharesMember" xlink:to="lab_pre_SeriesCPreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParent_35c8ce2f-16cb-4255-a4e9-fd42197dba9e_totalLabel_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Equity</link:label>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParent_da78e11e-9d6e-406b-b3ef-6c45b1a58e3a_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_EquityAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis_f3f0b901-ff84-4cc1-a9c4-7ca39111a042_terseLabel_en-US" xlink:label="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Collaborative arrangement and arrangement other than collaborative [Axis]</link:label>
    <link:label id="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis_label_en-US" xlink:label="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collaborative Arrangement And Arrangement Other Than Collaborative [Axis]</link:label>
    <link:label id="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis_documentation_en-US" xlink:label="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Ifrs Collaborative Arrangement And Arrangement Other Than Collaborative</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis" xlink:href="pre-20241231.xsd#pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis" xlink:to="lab_pre_CollaborativeArrangementAndArrangementOtherThanCollaborativeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019_4b1de292-a4ba-497e-9f03-ef7f311b2a48_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options exercisable (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options exercisable in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockClassDomain_cf13b726-2c84-47fa-aac9-4228c7286803_terseLabel_en-US" xlink:label="lab_pre_StockClassDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock, Class [Domain]</link:label>
    <link:label id="lab_pre_StockClassDomain_label_en-US" xlink:label="lab_pre_StockClassDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock, Class [Domain]</link:label>
    <link:label id="lab_pre_StockClassDomain_documentation_en-US" xlink:label="lab_pre_StockClassDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock, Class</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockClassDomain" xlink:href="pre-20241231.xsd#pre_StockClassDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockClassDomain" xlink:to="lab_pre_StockClassDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsAdjustmentToInterestRateBasis_6fdbace6-c92b-497d-b14f-47b7b461b66b_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings adjustment to interest rate basis</link:label>
    <link:label id="lab_ifrs-full_BorrowingsAdjustmentToInterestRateBasis_label_en-US" xlink:label="lab_ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings, adjustment to interest rate basis</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsAdjustmentToInterestRateBasis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:to="lab_ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents_df8c646a-5082-406f-92f8-3777c40282a3_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bank deposits with more than three months to maturity</link:label>
    <link:label id="lab_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term deposits, not classified as cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents" xlink:to="lab_ifrs-full_ShorttermDepositsNotClassifiedAsCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityTable_c798fc0e-3a10-4ddd-ac34-af37b8a90f6c_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityTable_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:to="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PrePrenetics2022PlanMember_57b30c7a-6d96-46b7-9970-ab6301e63980_terseLabel_en-US" xlink:label="lab_pre_PrePrenetics2022PlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PRE Prenetics 2022 Plan</link:label>
    <link:label id="lab_pre_PrePrenetics2022PlanMember_label_en-US" xlink:label="lab_pre_PrePrenetics2022PlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pre Prenetics 2022 Plan [Member]</link:label>
    <link:label id="lab_pre_PrePrenetics2022PlanMember_documentation_en-US" xlink:label="lab_pre_PrePrenetics2022PlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pre Prenetics 2022 Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PrePrenetics2022PlanMember" xlink:href="pre-20241231.xsd#pre_PrePrenetics2022PlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PrePrenetics2022PlanMember" xlink:to="lab_pre_PrePrenetics2022PlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities_1875a2e1-20fb-452f-a83f-dd032fa34bad_negatedLabel_en-US" xlink:label="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payments Of Capital Element Of Lease Liabilities Classified As Financing Activities</link:label>
    <link:label id="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments Of Capital Element Of Lease Liabilities Classified As Financing Activities</link:label>
    <link:label id="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments Of Capital Element Of Lease Liabilities Classified As Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="pre-20241231.xsd#pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="lab_pre_PaymentsOfCapitalElementOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits_abd1b720-e8fe-4a99-b8f0-244d430cc79f_terseLabel_en-US" xlink:label="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share issued for vesting of restricted share units (in shares)</link:label>
    <link:label id="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits_label_en-US" xlink:label="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Share Issued For Vesting Of Restricted Share Units</link:label>
    <link:label id="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits_documentation_en-US" xlink:label="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Share Issued For Vesting Of Restricted Share Units</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits" xlink:href="pre-20241231.xsd#pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits" xlink:to="lab_pre_NumberOfShareIssuedForVestingOfRestrictedShareUnits" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingForAdvisors_d08c5c0f-64ed-4dfe-95b2-976392066bf1_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingForAdvisors" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Vesting For Advisors</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingForAdvisors_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingForAdvisors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Vesting For Advisors</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingForAdvisors_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingForAdvisors" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Vesting For Advisors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughVestingForAdvisors" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughVestingForAdvisors"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughVestingForAdvisors" xlink:to="lab_pre_IncreaseDecreaseThroughVestingForAdvisors" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentInformationLineItems_652084ad-3b4e-4e0c-a5a3-5c17cfedee55_terseLabel_en-US" xlink:label="lab_dei_DocumentInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Information [Line Items]</link:label>
    <link:label id="lab_dei_DocumentInformationLineItems_label_en-US" xlink:label="lab_dei_DocumentInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationLineItems" xlink:to="lab_dei_DocumentInformationLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level3OfFairValueHierarchyMember_6c8dd4ec-867b-4f50-87b5-2140a8c6ef4f_terseLabel_en-US" xlink:label="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level 3 of fair value hierarchy [member]</link:label>
    <link:label id="lab_ifrs-full_Level3OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 3 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level3OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_1db694ec-d50b-4df0-a405-8bbd835e2bd6_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Operating and administrative expenses</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities_6fd3c40e-5585-46f1-a615-5d0b1c9facd7_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current accrued expenses and other current liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities_42a3b619-ec0e-45b5-9ee9-b9f8c76816a5_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Accrued expenses and other current liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current accrued expenses and other current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:to="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdditionalInformationForCashFlowProjectionPeriod_127ab679-ed2b-4810-87c2-9d8902bb22ac_terseLabel_en-US" xlink:label="lab_pre_AdditionalInformationForCashFlowProjectionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional information for cash flow projection period</link:label>
    <link:label id="lab_pre_AdditionalInformationForCashFlowProjectionPeriod_label_en-US" xlink:label="lab_pre_AdditionalInformationForCashFlowProjectionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Information For Cash Flow Projection Period</link:label>
    <link:label id="lab_pre_AdditionalInformationForCashFlowProjectionPeriod_documentation_en-US" xlink:label="lab_pre_AdditionalInformationForCashFlowProjectionPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Additional Information For Cash Flow Projection Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdditionalInformationForCashFlowProjectionPeriod" xlink:href="pre-20241231.xsd#pre_AdditionalInformationForCashFlowProjectionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdditionalInformationForCashFlowProjectionPeriod" xlink:to="lab_pre_AdditionalInformationForCashFlowProjectionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LandAndBuildingsMember_69d475ba-dbd8-46d6-bf67-370473de3bdf_terseLabel_en-US" xlink:label="lab_ifrs-full_LandAndBuildingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Land and buildings [member]</link:label>
    <link:label id="lab_ifrs-full_LandAndBuildingsMember_c8b0c4e3-9676-4d62-8a5a-726804ce2957_verboseLabel_en-US" xlink:label="lab_ifrs-full_LandAndBuildingsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Land and buildings [member]</link:label>
    <link:label id="lab_ifrs-full_LandAndBuildingsMember_label_en-US" xlink:label="lab_ifrs-full_LandAndBuildingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Land and buildings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LandAndBuildingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LandAndBuildingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LandAndBuildingsMember" xlink:to="lab_ifrs-full_LandAndBuildingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAndLiabilities_55075276-eb85-4f51-bc17-6d368235fd81_totalLabel_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity and liabilities</link:label>
    <link:label id="lab_ifrs-full_EquityAndLiabilities_label_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity and liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAndLiabilities" xlink:to="lab_ifrs-full_EquityAndLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DiscontinuedOperationsMember_61e74428-11d7-47cb-8add-36368b60d6a5_terseLabel_en-US" xlink:label="lab_ifrs-full_DiscontinuedOperationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discontinued operations [member]</link:label>
    <link:label id="lab_ifrs-full_DiscontinuedOperationsMember_label_en-US" xlink:label="lab_ifrs-full_DiscontinuedOperationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discontinued operations [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DiscontinuedOperationsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DiscontinuedOperationsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DiscontinuedOperationsMember" xlink:to="lab_ifrs-full_DiscontinuedOperationsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_8a5a6bc4-3419-45e2-99aa-8eaaff7bdd48_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment on property, plant and equipment, intangible assets and right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for impairment of assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate_5678f314-c952-4dbd-b013-c34443ba804f_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax assets recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_83420a1f-df61-459e-8c38-a02617550f2c_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current financial assets at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_8682d4d5-64e0-4146-bf98-986b8281a0f4_terseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provide for the period</link:label>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems_f81e5e72-680e-4f65-89c8-54eb62d265ce_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PipeInvestorsMember_cc9ed5a2-87f3-42c3-87d0-c60bf972fa96_terseLabel_en-US" xlink:label="lab_pre_PipeInvestorsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PIPE Investors</link:label>
    <link:label id="lab_pre_PipeInvestorsMember_label_en-US" xlink:label="lab_pre_PipeInvestorsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pipe Investors [Member]</link:label>
    <link:label id="lab_pre_PipeInvestorsMember_documentation_en-US" xlink:label="lab_pre_PipeInvestorsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pipe Investors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PipeInvestorsMember" xlink:href="pre-20241231.xsd#pre_PipeInvestorsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PipeInvestorsMember" xlink:to="lab_pre_PipeInvestorsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedImpairmentMember_c1c174f8-ce0e-4070-8b92-5cd1f6c6bc7b_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allowance for impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedImpairmentMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated impairment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedImpairmentMember" xlink:to="lab_ifrs-full_AccumulatedImpairmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WagesAndSalaries_8a3aa008-9771-4799-a016-d3217602afeb_verboseLabel_en-US" xlink:label="lab_ifrs-full_WagesAndSalaries" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Wages and salaries</link:label>
    <link:label id="lab_ifrs-full_WagesAndSalaries_b0fbd026-32ea-40b4-9ae3-7d053c39276d_terseLabel_en-US" xlink:label="lab_ifrs-full_WagesAndSalaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Wages and salaries</link:label>
    <link:label id="lab_ifrs-full_WagesAndSalaries_label_en-US" xlink:label="lab_ifrs-full_WagesAndSalaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Wages and salaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WagesAndSalaries" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WagesAndSalaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WagesAndSalaries" xlink:to="lab_ifrs-full_WagesAndSalaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RepaymentsOfCurrentBorrowings_1c19c5d3-2436-4cd7-8647-6e4b7f7bbebe_negatedLabel_en-US" xlink:label="lab_ifrs-full_RepaymentsOfCurrentBorrowings" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Repayments of current borrowings</link:label>
    <link:label id="lab_ifrs-full_RepaymentsOfCurrentBorrowings_label_en-US" xlink:label="lab_ifrs-full_RepaymentsOfCurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfCurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfCurrentBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfCurrentBorrowings" xlink:to="lab_ifrs-full_RepaymentsOfCurrentBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities_15206198-326d-431f-b11d-3ddb456a5de5_negatedTerseLabel_en-US" xlink:label="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Recognition Of Revenue From Contracts With Customers, Contract Liabilities</link:label>
    <link:label id="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities_label_en-US" xlink:label="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recognition Of Revenue From Contracts With Customers, Contract Liabilities</link:label>
    <link:label id="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities_documentation_en-US" xlink:label="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Recognition Of Revenue From Contracts With Customers, Contract Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities" xlink:href="pre-20241231.xsd#pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities" xlink:to="lab_pre_RecognitionOfRevenueFromContractsWithCustomersContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations_edae84a4-4eba-4377-a4a5-34fb19ea1340_terseLabel_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic (in US Dollar per share)</link:label>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic earnings (loss) per share from discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations" xlink:to="lab_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_85caddd7-38cb-483e-bfed-7c1a3f3e9ba1_terseLabel_en-US" xlink:label="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:to="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_d4c88b03-698b-4bf3-a041-428c07b2d91a_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAxis_0f9e4675-fd9c-4a27-96d4-2277fe0e9938_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial assets [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember_0e9862a2-cfdf-4931-be9f-347cf5e7116e_terseLabel_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities For Puttable Financial Instrument [Member]</link:label>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember_label_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities For Puttable Financial Instrument [Member]</link:label>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember_documentation_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Liabilities For Puttable Financial Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LiabilitiesForPuttableFinancialInstrumentMember" xlink:href="pre-20241231.xsd#pre_LiabilitiesForPuttableFinancialInstrumentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LiabilitiesForPuttableFinancialInstrumentMember" xlink:to="lab_pre_LiabilitiesForPuttableFinancialInstrumentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DeferredExpensesNonCurrentAbstract_9a54ffeb-f8ca-4efe-b44d-285017c9201b_terseLabel_en-US" xlink:label="lab_pre_DeferredExpensesNonCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred Expenses Non-Current [Abstract]</link:label>
    <link:label id="lab_pre_DeferredExpensesNonCurrentAbstract_label_en-US" xlink:label="lab_pre_DeferredExpensesNonCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Expenses Non-Current [Abstract]</link:label>
    <link:label id="lab_pre_DeferredExpensesNonCurrentAbstract_documentation_en-US" xlink:label="lab_pre_DeferredExpensesNonCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Expenses Non-Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DeferredExpensesNonCurrentAbstract" xlink:href="pre-20241231.xsd#pre_DeferredExpensesNonCurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DeferredExpensesNonCurrentAbstract" xlink:to="lab_pre_DeferredExpensesNonCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities_dc443035-beb9-439f-925d-f9e73c3b3e9d_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in fair value measurement, liabilities</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_6ca756b0-0db9-4aca-abdb-e9b45df651bb_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax</link:label>
    <link:label id="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_label_en-US" xlink:label="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:to="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareExchangeRatio_26a16403-e41c-44c0-9478-a5317b581916_terseLabel_en-US" xlink:label="lab_pre_ShareExchangeRatio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion ratio</link:label>
    <link:label id="lab_pre_ShareExchangeRatio_label_en-US" xlink:label="lab_pre_ShareExchangeRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Exchange Ratio</link:label>
    <link:label id="lab_pre_ShareExchangeRatio_documentation_en-US" xlink:label="lab_pre_ShareExchangeRatio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share Exchange Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareExchangeRatio" xlink:href="pre-20241231.xsd#pre_ShareExchangeRatio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareExchangeRatio" xlink:to="lab_pre_ShareExchangeRatio" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassOfWarrantsReceivedDuringThePeriod_b8a1e7d2-77a0-4040-a707-55fdc0840b69_terseLabel_en-US" xlink:label="lab_pre_ClassOfWarrantsReceivedDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of warrants received during the period</link:label>
    <link:label id="lab_pre_ClassOfWarrantsReceivedDuringThePeriod_label_en-US" xlink:label="lab_pre_ClassOfWarrantsReceivedDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class Of Warrants Received During The Period</link:label>
    <link:label id="lab_pre_ClassOfWarrantsReceivedDuringThePeriod_documentation_en-US" xlink:label="lab_pre_ClassOfWarrantsReceivedDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class Of Warrants Received During The Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassOfWarrantsReceivedDuringThePeriod" xlink:href="pre-20241231.xsd#pre_ClassOfWarrantsReceivedDuringThePeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassOfWarrantsReceivedDuringThePeriod" xlink:to="lab_pre_ClassOfWarrantsReceivedDuringThePeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentDescription_16345e4e-b040-4747-8ac2-8c23c631927b_terseLabel_en-US" xlink:label="lab_dei_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Description</link:label>
    <link:label id="lab_dei_AmendmentDescription_label_en-US" xlink:label="lab_dei_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Description</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentDescription" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentDescription"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentDescription" xlink:to="lab_dei_AmendmentDescription" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract_b76f078a-45be-45c5-9d26-7d9f7d8156d2_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition-date fair value of total consideration transferred [abstract]</link:label>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract_label_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisition-date fair value of total consideration transferred [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:to="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_e594fd38-cfd4-4e79-a1c6-6875cb792c87_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, intangible assets other than goodwill</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PaymentsForOperatingLeaseLiabilities_0882e564-7e3a-47b0-ada5-6932ff1678e4_negatedLabel_en-US" xlink:label="lab_pre_PaymentsForOperatingLeaseLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payments For Operating Lease Liabilities</link:label>
    <link:label id="lab_pre_PaymentsForOperatingLeaseLiabilities_label_en-US" xlink:label="lab_pre_PaymentsForOperatingLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments For Operating Lease Liabilities</link:label>
    <link:label id="lab_pre_PaymentsForOperatingLeaseLiabilities_documentation_en-US" xlink:label="lab_pre_PaymentsForOperatingLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments For Operating Lease Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PaymentsForOperatingLeaseLiabilities" xlink:href="pre-20241231.xsd#pre_PaymentsForOperatingLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PaymentsForOperatingLeaseLiabilities" xlink:to="lab_pre_PaymentsForOperatingLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForShareBasedPaymentOnListing_3c157f00-360f-4657-bf1e-70e841742b40_terseLabel_en-US" xlink:label="lab_pre_AdjustmentsForShareBasedPaymentOnListing" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments For Share Based Payment On Listing</link:label>
    <link:label id="lab_pre_AdjustmentsForShareBasedPaymentOnListing_label_en-US" xlink:label="lab_pre_AdjustmentsForShareBasedPaymentOnListing" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Share Based Payment On Listing</link:label>
    <link:label id="lab_pre_AdjustmentsForShareBasedPaymentOnListing_documentation_en-US" xlink:label="lab_pre_AdjustmentsForShareBasedPaymentOnListing" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Share Based Payment On Listing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForShareBasedPaymentOnListing" xlink:href="pre-20241231.xsd#pre_AdjustmentsForShareBasedPaymentOnListing"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForShareBasedPaymentOnListing" xlink:to="lab_pre_AdjustmentsForShareBasedPaymentOnListing" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_4aaff492-1906-4261-9201-8f6678d384a9_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Income tax expense</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_e5f745f7-da5d-4350-b198-66aacb8c39f5_totalLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total tax expense (income)</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_277c350c-4e98-4a7d-bdcf-745b4c4aeddc_verboseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Provision for income tax</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_ba75ab5a-1636-4423-bd3b-00c33f9ad253_negatedLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax expense (income)</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_0fac6aa8-43dd-4b28-89ac-41a76c07fe86_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherReceivablesAbstract_1411ccdf-53f4-4f4f-ba13-0ae8bd30f73c_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade and other receivables</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherReceivablesAbstract_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other receivables [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherReceivablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherReceivablesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherReceivablesAbstract" xlink:to="lab_ifrs-full_TradeAndOtherReceivablesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory_ab1f776b-9f80-4616-a71c-9ec528acfdba_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of number and weighted average exercise prices of RSU and share options</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of number and weighted average remaining contractual life of outstanding share options [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CancellationOfTreasuryShares_fce28571-fc3a-4b9d-b336-1960e94e4f6a_terseLabel_en-US" xlink:label="lab_ifrs-full_CancellationOfTreasuryShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cancellation of treasury shares</link:label>
    <link:label id="lab_ifrs-full_CancellationOfTreasuryShares_70aadbe2-c0c9-42fb-91ec-d7f8e27bd48e_negatedLabel_en-US" xlink:label="lab_ifrs-full_CancellationOfTreasuryShares" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cancellation of treasury shares</link:label>
    <link:label id="lab_ifrs-full_CancellationOfTreasuryShares_label_en-US" xlink:label="lab_ifrs-full_CancellationOfTreasuryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cancellation of treasury shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CancellationOfTreasuryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CancellationOfTreasuryShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CancellationOfTreasuryShares" xlink:to="lab_ifrs-full_CancellationOfTreasuryShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019_3bd6fea6-9497-4511-aacc-ecde37a64a62_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercisable (in dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_442e2199-5f60-4399-9f9a-a7f01aad2592_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss per share</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for earnings per share [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock_50fb40a0-dbf2-4f7a-ac57-febda52b6552_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of detailed information about financial information of associates</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Financial Information Of Associates Explanatory [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Financial Information Of Associates Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock" xlink:to="lab_pre_DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestructuringChargesDomain_47e9dccf-6005-4937-8089-f1c41bc87fe9_terseLabel_en-US" xlink:label="lab_pre_RestructuringChargesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Charges [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesDomain_label_en-US" xlink:label="lab_pre_RestructuringChargesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Charges [Domain]</link:label>
    <link:label id="lab_pre_RestructuringChargesDomain_documentation_en-US" xlink:label="lab_pre_RestructuringChargesDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Charges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestructuringChargesDomain" xlink:href="pre-20241231.xsd#pre_RestructuringChargesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestructuringChargesDomain" xlink:to="lab_pre_RestructuringChargesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities_ffb8513d-8282-4cf9-9240-ca2e8a82780c_negatedLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Carrying Value Of Preference Shares Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Carrying Value Of Preference Shares Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Carrying Value Of Preference Shares Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueOfPreferenceSharesLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract_af8be78b-bad5-49ae-a61f-2a09d5bb97b3_terseLabel_en-US" xlink:label="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ifrs Increase Decrease In Operating Capital [Abstract]</link:label>
    <link:label id="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract_label_en-US" xlink:label="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ifrs Increase Decrease In Operating Capital [Abstract]</link:label>
    <link:label id="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract_documentation_en-US" xlink:label="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Ifrs Increase Decrease In Operating Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract" xlink:href="pre-20241231.xsd#pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_pre_IfrsIncreaseDecreaseInOperatingCapitalAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable_cc03a86f-356f-4986-bec3-92c59df3bce2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:to="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019_58ec9fd3-c690-4fc5-ac37-e7f20fe6e3f3_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercised (in US dollar per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of other equity instruments exercised or vested in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CustomerHealthSportDistributionMember_4bf94b74-914d-48b0-a692-5d91312dae08_terseLabel_en-US" xlink:label="lab_pre_CustomerHealthSportDistributionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer Health - Sport Distribution [Member]</link:label>
    <link:label id="lab_pre_CustomerHealthSportDistributionMember_label_en-US" xlink:label="lab_pre_CustomerHealthSportDistributionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer Health - Sport Distribution [Member]</link:label>
    <link:label id="lab_pre_CustomerHealthSportDistributionMember_documentation_en-US" xlink:label="lab_pre_CustomerHealthSportDistributionMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Customer Health - Sport Distribution</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CustomerHealthSportDistributionMember" xlink:href="pre-20241231.xsd#pre_CustomerHealthSportDistributionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CustomerHealthSportDistributionMember" xlink:to="lab_pre_CustomerHealthSportDistributionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ReservesAndRetainedEarnings_b9f802fc-015c-41db-b0d8-3e2d7580b88a_terseLabel_en-US" xlink:label="lab_pre_ReservesAndRetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reserves</link:label>
    <link:label id="lab_pre_ReservesAndRetainedEarnings_label_en-US" xlink:label="lab_pre_ReservesAndRetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserves And Retained Earnings</link:label>
    <link:label id="lab_pre_ReservesAndRetainedEarnings_documentation_en-US" xlink:label="lab_pre_ReservesAndRetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reserves And Retained Earnings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ReservesAndRetainedEarnings" xlink:href="pre-20241231.xsd#pre_ReservesAndRetainedEarnings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ReservesAndRetainedEarnings" xlink:to="lab_pre_ReservesAndRetainedEarnings" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness_b395419c-a632-4659-8e10-561c44b847a7_terseLabel_en-US" xlink:label="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments For Restructuring Costs In Relation To Diagnostic Business</link:label>
    <link:label id="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness_label_en-US" xlink:label="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Restructuring Costs In Relation To Diagnostic Business</link:label>
    <link:label id="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness_documentation_en-US" xlink:label="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Restructuring Costs In Relation To Diagnostic Business</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness" xlink:href="pre-20241231.xsd#pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness" xlink:to="lab_pre_AdjustmentsForRestructuringCostsInRelationToDiagnosticBusiness" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AuditorName_db4a87a7-7f3b-493b-ac9e-08ddd5e68101_terseLabel_en-US" xlink:label="lab_dei_AuditorName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Name</link:label>
    <link:label id="lab_dei_AuditorName_label_en-US" xlink:label="lab_dei_AuditorName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorName" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorName" xlink:to="lab_dei_AuditorName" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassOfShareCapitalOneAxis_e97080c6-b437-4657-a9c6-030423006c97_terseLabel_en-US" xlink:label="lab_pre_ClassOfShareCapitalOneAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class Of Share Capital One [Axis]</link:label>
    <link:label id="lab_pre_ClassOfShareCapitalOneAxis_label_en-US" xlink:label="lab_pre_ClassOfShareCapitalOneAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class Of Share Capital One [Axis]</link:label>
    <link:label id="lab_pre_ClassOfShareCapitalOneAxis_documentation_en-US" xlink:label="lab_pre_ClassOfShareCapitalOneAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class Of Share Capital One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassOfShareCapitalOneAxis" xlink:href="pre-20241231.xsd#pre_ClassOfShareCapitalOneAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassOfShareCapitalOneAxis" xlink:to="lab_pre_ClassOfShareCapitalOneAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities_9f5ac0c6-4d19-4c89-9b1b-5cad646fbbf4_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales of other long-term assets</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales of other long-term assets, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember_02be8567-c01e-4a16-a51d-d585e36b6b5b_terseLabel_en-US" xlink:label="lab_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries with material non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember_label_en-US" xlink:label="lab_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries with material non-controlling interests [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:to="lab_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019_7a2ec43e-2d55-430a-a80b-f4c8d5ee5a36_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value at measurement date (in USD per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average share price, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:to="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ResearchAndDevelopmentExpensesMember_f4814209-1f57-4d83-9d79-44cb198df78d_terseLabel_en-US" xlink:label="lab_pre_ResearchAndDevelopmentExpensesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Research And Development Expenses [Member]</link:label>
    <link:label id="lab_pre_ResearchAndDevelopmentExpensesMember_label_en-US" xlink:label="lab_pre_ResearchAndDevelopmentExpensesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Research And Development Expenses [Member]</link:label>
    <link:label id="lab_pre_ResearchAndDevelopmentExpensesMember_documentation_en-US" xlink:label="lab_pre_ResearchAndDevelopmentExpensesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Research And Development Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ResearchAndDevelopmentExpensesMember" xlink:href="pre-20241231.xsd#pre_ResearchAndDevelopmentExpensesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ResearchAndDevelopmentExpensesMember" xlink:to="lab_pre_ResearchAndDevelopmentExpensesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssets_c68d522c-b6b0-449e-b350-ae0805d86631_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current financial assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentFinancialAssets" xlink:to="lab_ifrs-full_NoncurrentFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate_29db96ab-2e09-4bae-9463-f6b214fd2fc5_terseLabel_en-US" xlink:label="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InventoryRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities_0fc0e10c-ae34-4fad-9cb5-b3b3ebad0100_periodStartLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning of the period</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities_2cfc43cd-d6bd-4f94-898c-6e4337c49c4e_periodEndLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending of the period</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_VariableInterestRateTypeMember_15cc40bf-b7aa-4f6a-99b0-a0aa63a5e262_terseLabel_en-US" xlink:label="lab_pre_VariableInterestRateTypeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Rate Type [Domain]</link:label>
    <link:label id="lab_pre_VariableInterestRateTypeMember_label_en-US" xlink:label="lab_pre_VariableInterestRateTypeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Rate Type [Member]</link:label>
    <link:label id="lab_pre_VariableInterestRateTypeMember_documentation_en-US" xlink:label="lab_pre_VariableInterestRateTypeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Variable Interest Rate Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_VariableInterestRateTypeMember" xlink:href="pre-20241231.xsd#pre_VariableInterestRateTypeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_VariableInterestRateTypeMember" xlink:to="lab_pre_VariableInterestRateTypeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees_e2992006-5897-4ef0-850b-2b5d07fbbab9_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expense from share-based payment transactions with employees</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees_label_en-US" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense from share-based payment transactions with employees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:to="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory_ed0dc5a5-cca0-4a15-a0de-bfc4ecc72b9d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeStatementAbstract_3d804e01-b65c-4450-a4d7-c77e1ffe2b19_terseLabel_en-US" xlink:label="lab_ifrs-full_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_IncomeStatementAbstract_label_en-US" xlink:label="lab_ifrs-full_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeStatementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="lab_ifrs-full_IncomeStatementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_27929860-1c91-4968-9a52-40658f8858ad_verboseLabel_en-US" xlink:label="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of remaining contractual maturities of the lease liabilities</link:label>
    <link:label id="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:to="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank_9b651fd5-aadf-49ea-9154-834bb419c508_terseLabel_en-US" xlink:label="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Period within which the amount is to be settled to the bank</link:label>
    <link:label id="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank_label_en-US" xlink:label="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Period Within Which The Amount Is To Be Settled To The Bank</link:label>
    <link:label id="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank_documentation_en-US" xlink:label="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Period Within Which The Amount Is To Be Settled To The Bank</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank" xlink:href="pre-20241231.xsd#pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank" xlink:to="lab_pre_PeriodWithinWhichTheAmountIsToBeSettledToTheBank" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockExchangeAxis_371c70cf-0b53-40ae-a8ae-9ace4cd1b035_terseLabel_en-US" xlink:label="lab_pre_StockExchangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Exchange [axis]</link:label>
    <link:label id="lab_pre_StockExchangeAxis_label_en-US" xlink:label="lab_pre_StockExchangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Exchange [Axis]</link:label>
    <link:label id="lab_pre_StockExchangeAxis_documentation_en-US" xlink:label="lab_pre_StockExchangeAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock Exchange</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockExchangeAxis" xlink:href="pre-20241231.xsd#pre_StockExchangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockExchangeAxis" xlink:to="lab_pre_StockExchangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_a07a068d-fe84-41b5-8685-5d07a4791b74_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Key sources of estimation uncertainty</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of accounting judgements and estimates [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageShares_af72e6c6-4a9f-460d-a76f-a5ded1295e75_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted-average number of ordinary shares for the purposes of basic (loss)/earnings per share (in shares)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageShares_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average number of ordinary shares used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageShares" xlink:to="lab_ifrs-full_WeightedAverageShares" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities_e9a5f34d-8b7c-46af-b92d-d504a922532f_terseLabel_en-US" xlink:label="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average effective interest rate, lease liabilities (%)</link:label>
    <link:label id="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities_label_en-US" xlink:label="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Effective Interest Rate, Lease Liabilities</link:label>
    <link:label id="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities_documentation_en-US" xlink:label="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted Average Effective Interest Rate, Lease Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities" xlink:href="pre-20241231.xsd#pre_WeightedAverageEffectiveInterestRateLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities" xlink:to="lab_pre_WeightedAverageEffectiveInterestRateLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_UnlistedSecuritiesMember_44fff38e-9266-48ae-ad3f-83b5b38ce069_terseLabel_en-US" xlink:label="lab_pre_UnlistedSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unlisted Securities [Member]</link:label>
    <link:label id="lab_pre_UnlistedSecuritiesMember_label_en-US" xlink:label="lab_pre_UnlistedSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unlisted Securities [Member]</link:label>
    <link:label id="lab_pre_UnlistedSecuritiesMember_documentation_en-US" xlink:label="lab_pre_UnlistedSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Unlisted Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_UnlistedSecuritiesMember" xlink:href="pre-20241231.xsd#pre_UnlistedSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_UnlistedSecuritiesMember" xlink:to="lab_pre_UnlistedSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits_d695941e-4297-4fe2-b4d2-81646b6d20b4_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, short-term employee benefits</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, short-term employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ServicesReceivedRelatedPartyTransactions_75571f92-efd2-4e19-acc8-3d7b62ef1ea7_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ServicesReceivedRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Sales and marketing service income</link:label>
    <link:label id="lab_ifrs-full_ServicesReceivedRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_ServicesReceivedRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Services received, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ServicesReceivedRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ServicesReceivedRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ServicesReceivedRelatedPartyTransactions" xlink:to="lab_ifrs-full_ServicesReceivedRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_b0f606d8-989b-405f-8288-8ff029231c9c_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Later than one year and not later than five years [member]</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than one year and not later than five years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:to="lab_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_2aef893b-f0fd-47a1-9c4c-817b81a404cb_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_81c56e48-db73-4260-aac1-8f393c13ab69_verboseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:to="lab_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets_956b034a-4be4-42e5-9cb4-3194172f375e_negatedTerseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Remeasurement, Financial Assets</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Remeasurement, Financial Assets</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Remeasurement, Financial Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughRemeasurementFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets" xlink:to="lab_pre_IncreaseDecreaseThroughRemeasurementFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract_c787aeb7-e711-489f-93e1-168ea9a9aa0f_terseLabel_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities for puttable financial instrument [Abstract]</link:label>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract_label_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities For Puttable Financial Instrument [Abstract]</link:label>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract_documentation_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Liabilities For Puttable Financial Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LiabilitiesForPuttableFinancialInstrumentAbstract" xlink:href="pre-20241231.xsd#pre_LiabilitiesForPuttableFinancialInstrumentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LiabilitiesForPuttableFinancialInstrumentAbstract" xlink:to="lab_pre_LiabilitiesForPuttableFinancialInstrumentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperations_42a325c4-9b08-47bc-bd08-ea27821ae796_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operations</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperations_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ACTMember_c1fbdfe6-e8fc-45b2-8393-b98344bc94b6_terseLabel_en-US" xlink:label="lab_pre_ACTMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACT</link:label>
    <link:label id="lab_pre_ACTMember_label_en-US" xlink:label="lab_pre_ACTMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACT [Member]</link:label>
    <link:label id="lab_pre_ACTMember_documentation_en-US" xlink:label="lab_pre_ACTMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACT</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ACTMember" xlink:href="pre-20241231.xsd#pre_ACTMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ACTMember" xlink:to="lab_pre_ACTMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_a3de0bd2-f1bf-4c29-87a3-c3025ac186aa_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, share-based payment</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, share-based payment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract_1a923871-7d09-40bb-95e8-a6709a27f844_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) [abstract]</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SharePriceShareOptionsGranted_00cfaf50-cbd7-4948-9218-d536c2e471ed_terseLabel_en-US" xlink:label="lab_pre_SharePriceShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share price (in USD per share)</link:label>
    <link:label id="lab_pre_SharePriceShareOptionsGranted_label_en-US" xlink:label="lab_pre_SharePriceShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Price, Share Options Granted</link:label>
    <link:label id="lab_pre_SharePriceShareOptionsGranted_documentation_en-US" xlink:label="lab_pre_SharePriceShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share Price, Share Options Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SharePriceShareOptionsGranted" xlink:href="pre-20241231.xsd#pre_SharePriceShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SharePriceShareOptionsGranted" xlink:to="lab_pre_SharePriceShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_81f2f324-94c7-4d30-81b4-580ca3870560_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_1b58dfce-248e-4ad0-a01b-5a1b2ee782c1_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Within a period of more than one year but not exceeding two years</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than one year and not later than two years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:to="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_e57d50c9-866d-449c-a7c1-fffa1e916e73_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortisation expense</link:label>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_label_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation and amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:to="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ResearchAndDevelopmentExpense_72ab5d7e-c67d-48e7-9c20-7e520f6c5b8e_negatedLabel_en-US" xlink:label="lab_ifrs-full_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Research and development expense</link:label>
    <link:label id="lab_ifrs-full_ResearchAndDevelopmentExpense_c3f3988b-2ad1-46ab-9ad0-28ab2ccdbc12_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Research and development expense</link:label>
    <link:label id="lab_ifrs-full_ResearchAndDevelopmentExpense_label_en-US" xlink:label="lab_ifrs-full_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Research and development expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ResearchAndDevelopmentExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ResearchAndDevelopmentExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ResearchAndDevelopmentExpense" xlink:to="lab_ifrs-full_ResearchAndDevelopmentExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_f1b15452-1f02-4e7a-b39b-6a5c85dce590_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_1493ccf8-4d56-413c-9702-29fe08e17400_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DiagnosticsCancerTreatmentMember_3f93d947-e5a2-400f-a9e6-6e0063d66b40_terseLabel_en-US" xlink:label="lab_pre_DiagnosticsCancerTreatmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diagnostics - Cancer Treatment [Member]</link:label>
    <link:label id="lab_pre_DiagnosticsCancerTreatmentMember_label_en-US" xlink:label="lab_pre_DiagnosticsCancerTreatmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diagnostics - Cancer Treatment [Member]</link:label>
    <link:label id="lab_pre_DiagnosticsCancerTreatmentMember_documentation_en-US" xlink:label="lab_pre_DiagnosticsCancerTreatmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Diagnostics - Cancer Treatment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DiagnosticsCancerTreatmentMember" xlink:href="pre-20241231.xsd#pre_DiagnosticsCancerTreatmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DiagnosticsCancerTreatmentMember" xlink:to="lab_pre_DiagnosticsCancerTreatmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InternalCreditGradesAxis_1440a5ed-714b-4059-a3f6-4eaa2c5f0d18_terseLabel_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Internal credit grades [axis]</link:label>
    <link:label id="lab_ifrs-full_InternalCreditGradesAxis_label_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Internal credit grades [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InternalCreditGradesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InternalCreditGradesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InternalCreditGradesAxis" xlink:to="lab_ifrs-full_InternalCreditGradesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee_10787a60-0323-44b7-9e49-65174294ae2e_terseLabel_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net cash (used in) from financing activities</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee_label_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Increase In Amounts Due From A Equity Accounted Investee</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee_documentation_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase In Amounts Due From A Equity Accounted Investee</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee" xlink:href="pre-20241231.xsd#pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee" xlink:to="lab_pre_AdjustmentsForIncreaseInAmountsDueFromAEquityAccountedInvestee" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BalancesWithBanks_79e7b058-19b7-4641-83b1-a06b09be87b0_terseLabel_en-US" xlink:label="lab_ifrs-full_BalancesWithBanks" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balances with banks</link:label>
    <link:label id="lab_ifrs-full_BalancesWithBanks_label_en-US" xlink:label="lab_ifrs-full_BalancesWithBanks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balances with banks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BalancesWithBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BalancesWithBanks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BalancesWithBanks" xlink:to="lab_ifrs-full_BalancesWithBanks" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBorrowingsExplanatory_a8fb3efb-c4dc-418f-9a1c-f0e2d7295e60_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and borrowings</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBorrowingsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of borrowings [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember_4a35e326-51bb-45de-9d1d-c48bb15926bb_terseLabel_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Of Intangible Assets [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember_label_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Of Intangible Assets [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember_documentation_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Of Intangible Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember" xlink:href="pre-20241231.xsd#pre_RestructuringChargesImpairmentOfIntangibleAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember" xlink:to="lab_pre_RestructuringChargesImpairmentOfIntangibleAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_99f5884a-0244-442a-b998-72c1b661f7bb_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_fbec9e83-8da6-4e8f-9f22-33518b821164_netLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_label_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="lab_ifrs-full_ProfitLossBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ActmedCo.LtdMember_a240e1ca-938e-42ff-921b-a48b7c7ee57d_terseLabel_en-US" xlink:label="lab_pre_ActmedCo.LtdMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACTmed Co., Ltd</link:label>
    <link:label id="lab_pre_ActmedCo.LtdMember_label_en-US" xlink:label="lab_pre_ActmedCo.LtdMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ActmedCo.Ltd [Member]</link:label>
    <link:label id="lab_pre_ActmedCo.LtdMember_documentation_en-US" xlink:label="lab_pre_ActmedCo.LtdMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ActmedCo.Ltd</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ActmedCo.LtdMember" xlink:href="pre-20241231.xsd#pre_ActmedCo.LtdMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ActmedCo.LtdMember" xlink:to="lab_pre_ActmedCo.LtdMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill_288e562c-8d09-4285-8996-896d635c2010_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Retirements, intangible assets other than goodwill</link:label>
    <link:label id="lab_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirements, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock_21ff4857-bf22-4546-8d9b-cafb2d500458_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of gross profit to profit (loss) before taxation</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of Reconciliation of Gross Profit to Profit (Loss) Before Taxation [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of Reconciliation of Gross Profit to Profit (Loss) Before Taxation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock" xlink:to="lab_pre_DisclosureOfReconciliationOfGrossProfitToProfitLossBeforeTaxationTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock_8339edc0-40cd-49f7-aca4-307f54d357be_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of movements in preference shares liabilities</link:label>
    <link:label id="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Changes In Financial Liabilities [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Changes In Financial Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock" xlink:to="lab_pre_ScheduleOfChangesInFinancialLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_f94583a5-b409-4f65-ac5d-5409fa78e0eb_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade and other receivables and deferred expenses</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of trade and other receivables [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock_b595e986-dc2f-4d48-90b0-c4eff7b2bed0_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of liabilities for puttable financial instrument</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrument [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock" xlink:to="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FiveLargestCustomersMember_e2b72b7a-8264-458e-a73d-e55580bc486b_terseLabel_en-US" xlink:label="lab_pre_FiveLargestCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Five largest customers</link:label>
    <link:label id="lab_pre_FiveLargestCustomersMember_label_en-US" xlink:label="lab_pre_FiveLargestCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Five Largest Customers [Member]</link:label>
    <link:label id="lab_pre_FiveLargestCustomersMember_documentation_en-US" xlink:label="lab_pre_FiveLargestCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Five Largest Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FiveLargestCustomersMember" xlink:href="pre-20241231.xsd#pre_FiveLargestCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FiveLargestCustomersMember" xlink:to="lab_pre_FiveLargestCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ApplicableTaxRate_94ea4833-be86-4dfb-982d-deca2938c6cb_terseLabel_en-US" xlink:label="lab_ifrs-full_ApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Applicable tax rate (%)</link:label>
    <link:label id="lab_ifrs-full_ApplicableTaxRate_label_en-US" xlink:label="lab_ifrs-full_ApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Applicable tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ApplicableTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ApplicableTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ApplicableTaxRate" xlink:to="lab_ifrs-full_ApplicableTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RevenueRecognitionPeriod_13e01833-d6d6-4a58-a795-8bd723c4fa6b_terseLabel_en-US" xlink:label="lab_pre_RevenueRecognitionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Period of revenue to be recognized</link:label>
    <link:label id="lab_pre_RevenueRecognitionPeriod_label_en-US" xlink:label="lab_pre_RevenueRecognitionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue Recognition, Period</link:label>
    <link:label id="lab_pre_RevenueRecognitionPeriod_documentation_en-US" xlink:label="lab_pre_RevenueRecognitionPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue Recognition, Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RevenueRecognitionPeriod" xlink:href="pre-20241231.xsd#pre_RevenueRecognitionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RevenueRecognitionPeriod" xlink:to="lab_pre_RevenueRecognitionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_e1652a05-f8d5-4dad-adba-ece63ac0328f_terseLabel_en-US" xlink:label="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cancelled (in US dollar per share)</link:label>
    <link:label id="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_label_en-US" xlink:label="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Exercise Price Of Other Equity Instruments Cancelled In Share-Based Payment Arrangement</link:label>
    <link:label id="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_documentation_en-US" xlink:label="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted Average Exercise Price Of Other Equity Instruments Cancelled In Share-Based Payment Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:href="pre-20241231.xsd#pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:to="lab_pre_WeightedAverageExercisePriceOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpensesCurrent_413ef46b-41b3-404a-8167-ac445bf020bd_terseLabel_en-US" xlink:label="lab_pre_AccruedExpensesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued Expenses Current</link:label>
    <link:label id="lab_pre_AccruedExpensesCurrent_label_en-US" xlink:label="lab_pre_AccruedExpensesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expenses Current</link:label>
    <link:label id="lab_pre_AccruedExpensesCurrent_documentation_en-US" xlink:label="lab_pre_AccruedExpensesCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expenses Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpensesCurrent" xlink:href="pre-20241231.xsd#pre_AccruedExpensesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpensesCurrent" xlink:to="lab_pre_AccruedExpensesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_079722f0-6632-4efa-8695-fcdd4e69aabd_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_3843cdfb-d326-4027-ac54-e0d235602176_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_4b990c3e-7281-418b-bcdd-cc38a69f84f8_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Taxation</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for income tax [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_OtherAddressMember_052d89e0-9ab0-4450-b175-089cccdcec85_terseLabel_en-US" xlink:label="lab_dei_OtherAddressMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Address</link:label>
    <link:label id="lab_dei_OtherAddressMember_label_en-US" xlink:label="lab_dei_OtherAddressMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Address [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_OtherAddressMember" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_OtherAddressMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_OtherAddressMember" xlink:to="lab_dei_OtherAddressMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain_102bf80d-6420-4e07-9a95-037f6395ce47_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [domain]</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract_4362ea9f-6df7-4ec9-a892-3f29c22b36fe_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets designated as measured at fair value through profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract" xlink:to="lab_ifrs-full_FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_7e67c2c8-3ecf-4aa0-95ee-7bcbbe7caa57_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfAssetsDomain_d5214975-8818-4da4-8f61-51bdc330e089_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock_11f3774b-1de5-4b87-93f2-2e67e34e910a_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term deposits and cash and cash equivalents</link:label>
    <link:label id="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Short Term Deposits And Cash And Cash Equivalents Explanatory [Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Short Term Deposits And Cash And Cash Equivalents Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock" xlink:to="lab_pre_DisclosureOfShortTermDepositsAndCashAndCashEquivalentsExplanatoryTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine2_a1793a24-75c3-4f2a-aa15-9930f5f8c1e1_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine2_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2" xlink:to="lab_dei_EntityAddressAddressLine2" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuedCapitalOrdinaryShares_bb17c863-61a5-49f0-b678-97ade418b007_negatedLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapitalOrdinaryShares" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Issued capital, ordinary shares</link:label>
    <link:label id="lab_ifrs-full_IssuedCapitalOrdinaryShares_label_en-US" xlink:label="lab_ifrs-full_IssuedCapitalOrdinaryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued capital, ordinary shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapitalOrdinaryShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapitalOrdinaryShares" xlink:to="lab_ifrs-full_IssuedCapitalOrdinaryShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashTransferred_f57126f2-e822-41cc-9232-46a3701c19e0_terseLabel_en-US" xlink:label="lab_ifrs-full_CashTransferred" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash transferred</link:label>
    <link:label id="lab_ifrs-full_CashTransferred_label_en-US" xlink:label="lab_ifrs-full_CashTransferred" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash transferred</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashTransferred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashTransferred"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashTransferred" xlink:to="lab_ifrs-full_CashTransferred" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockClassAxis_7ede8a25-1d11-4554-9651-124b847f8892_terseLabel_en-US" xlink:label="lab_pre_StockClassAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock, Class [Axis]</link:label>
    <link:label id="lab_pre_StockClassAxis_label_en-US" xlink:label="lab_pre_StockClassAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock, Class [Axis]</link:label>
    <link:label id="lab_pre_StockClassAxis_documentation_en-US" xlink:label="lab_pre_StockClassAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock, Class</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockClassAxis" xlink:href="pre-20241231.xsd#pre_StockClassAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockClassAxis" xlink:to="lab_pre_StockClassAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ReverseFactoringArrangementMember_e041094c-78cb-4ab4-8e4f-999b3fe82bc2_terseLabel_en-US" xlink:label="lab_pre_ReverseFactoringArrangementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse factoring arrangement</link:label>
    <link:label id="lab_pre_ReverseFactoringArrangementMember_label_en-US" xlink:label="lab_pre_ReverseFactoringArrangementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Factoring Arrangement [Member]</link:label>
    <link:label id="lab_pre_ReverseFactoringArrangementMember_documentation_en-US" xlink:label="lab_pre_ReverseFactoringArrangementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reverse Factoring Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ReverseFactoringArrangementMember" xlink:href="pre-20241231.xsd#pre_ReverseFactoringArrangementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ReverseFactoringArrangementMember" xlink:to="lab_pre_ReverseFactoringArrangementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_ae339e73-22b5-4709-b67f-2ae1082ef7b6_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for determining components of cash and cash equivalents [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SeriesAPreferenceSharesMember_1eb3da0f-bdc0-4bf8-b84d-290e9b67801d_terseLabel_en-US" xlink:label="lab_pre_SeriesAPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Series A preference shares</link:label>
    <link:label id="lab_pre_SeriesAPreferenceSharesMember_label_en-US" xlink:label="lab_pre_SeriesAPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series A Preference Shares [Member]</link:label>
    <link:label id="lab_pre_SeriesAPreferenceSharesMember_documentation_en-US" xlink:label="lab_pre_SeriesAPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series A Preference Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SeriesAPreferenceSharesMember" xlink:href="pre-20241231.xsd#pre_SeriesAPreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SeriesAPreferenceSharesMember" xlink:to="lab_pre_SeriesAPreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfAssetsAxis_65891726-fa27-4345-abab-2bac6d6dd778_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherExpenseByNature_ae8b82b1-d274-4cdf-9b06-aa69b7a47ce9_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherExpenseByNature" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other expenses</link:label>
    <link:label id="lab_ifrs-full_OtherExpenseByNature_label_en-US" xlink:label="lab_ifrs-full_OtherExpenseByNature" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other expenses, by nature</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherExpenseByNature" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherExpenseByNature"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherExpenseByNature" xlink:to="lab_ifrs-full_OtherExpenseByNature" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RetainedEarningsMember_885904a2-0f1e-4b40-b102-7327a89cef43_terseLabel_en-US" xlink:label="lab_ifrs-full_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Accumulated losses) retained earnings</link:label>
    <link:label id="lab_ifrs-full_RetainedEarningsMember_label_en-US" xlink:label="lab_ifrs-full_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained earnings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetainedEarningsMember" xlink:to="lab_ifrs-full_RetainedEarningsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_67566b8b-4006-4697-baeb-aded57e73121_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">(Loss)/earnings for the purpose of diluted (loss)/earnings per share being net loss attributable to equity shareholders of the Company, from the discontinued operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to ordinary equity holders of parent entity, used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:to="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssueOfEquity_762b25a6-a37d-4cea-9891-b86e81bde703_terseLabel_en-US" xlink:label="lab_ifrs-full_IssueOfEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total comprehensive income (expense) for the year</link:label>
    <link:label id="lab_ifrs-full_IssueOfEquity_label_en-US" xlink:label="lab_ifrs-full_IssueOfEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issue of equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssueOfEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssueOfEquity" xlink:to="lab_ifrs-full_IssueOfEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_7d5a66bb-f057-4952-ae4c-3ed31157f218_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock_1a689e9a-3f8f-489e-a43b-139a1a84659b_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of remaining contractual maturities at the end of the reporting period of the non-derivative financial liabilities and derivative financial liabilities, which are based on contractual undiscounted cash flows</link:label>
    <link:label id="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Maturity Analysis For Derivative And Non Derivative Financial Liabilities [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Maturity Analysis For Derivative And Non Derivative Financial Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock" xlink:to="lab_pre_DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_43dcc818-8622-42ca-9e45-88cb50ca495f_periodStartLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Number of share options outstanding, beginning of period (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_afbaf62d-d4e4-4f3c-8330-0d1b8ee626ea_periodEndLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Number of share options outstanding, end of period (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_label_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options outstanding in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfOutstandingShareOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOutstandingShareOptions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOutstandingShareOptions" xlink:to="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdditionsOfFinancialAssetsAtFairValue_aee2d92f-8f77-43cf-9905-4b84f510a7b5_terseLabel_en-US" xlink:label="lab_pre_AdditionsOfFinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions Of Financial Assets At Fair Value</link:label>
    <link:label id="lab_pre_AdditionsOfFinancialAssetsAtFairValue_label_en-US" xlink:label="lab_pre_AdditionsOfFinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions Of Financial Assets At Fair Value</link:label>
    <link:label id="lab_pre_AdditionsOfFinancialAssetsAtFairValue_documentation_en-US" xlink:label="lab_pre_AdditionsOfFinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Additions Of Financial Assets At Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdditionsOfFinancialAssetsAtFairValue" xlink:href="pre-20241231.xsd#pre_AdditionsOfFinancialAssetsAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdditionsOfFinancialAssetsAtFairValue" xlink:to="lab_pre_AdditionsOfFinancialAssetsAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CashAndCashEquivalents1Member_e3856491-be5b-4b28-ab99-07bbd0688b2d_terseLabel_en-US" xlink:label="lab_pre_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents1 [Member]</link:label>
    <link:label id="lab_pre_CashAndCashEquivalents1Member_label_en-US" xlink:label="lab_pre_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents1 [Member]</link:label>
    <link:label id="lab_pre_CashAndCashEquivalents1Member_documentation_en-US" xlink:label="lab_pre_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CashAndCashEquivalents1Member" xlink:href="pre-20241231.xsd#pre_CashAndCashEquivalents1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CashAndCashEquivalents1Member" xlink:to="lab_pre_CashAndCashEquivalents1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Equity_ba54d5e1-0569-47d3-8d81-8978c5bdf81f_totalLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity</link:label>
    <link:label id="lab_ifrs-full_Equity_1599be1c-46ea-45b5-bdad-2e82fa93c67e_periodStartLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_ifrs-full_Equity_8ca044c2-3416-4d7d-a2db-53511e80fa92_periodEndLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance</link:label>
    <link:label id="lab_ifrs-full_Equity_59668d89-a008-4cae-970b-88125884f5f5_terseLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_ifrs-full_Equity_4ab3115b-afc0-40cc-81b6-44fc2b05f4fc_verboseLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_ifrs-full_Equity_label_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Equity" xlink:to="lab_ifrs-full_Equity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfOrdinarySharesAxis_13296611-f10b-4701-b42c-52b6d9c68a1d_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfOrdinarySharesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of ordinary shares [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfOrdinarySharesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfOrdinarySharesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of ordinary shares [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="lab_ifrs-full_ClassesOfOrdinarySharesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_ae4293a7-b978-40c6-9e0e-d414ce4a979b_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Decrease (increase) in amounts due from related companies</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in trade accounts receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract_a51142ea-4ddb-4b09-a0d5-eabe30b57b08_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncomeTaxDisclosureLineItems_b8168aa4-db3d-4ad2-8524-df4772f86c88_terseLabel_en-US" xlink:label="lab_pre_IncomeTaxDisclosureLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Line Items]</link:label>
    <link:label id="lab_pre_IncomeTaxDisclosureLineItems_label_en-US" xlink:label="lab_pre_IncomeTaxDisclosureLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Line Items]</link:label>
    <link:label id="lab_pre_IncomeTaxDisclosureLineItems_documentation_en-US" xlink:label="lab_pre_IncomeTaxDisclosureLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncomeTaxDisclosureLineItems" xlink:href="pre-20241231.xsd#pre_IncomeTaxDisclosureLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncomeTaxDisclosureLineItems" xlink:to="lab_pre_IncomeTaxDisclosureLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PreneticsHKMember_c6458b50-f99a-4efb-abbf-4938d5841d19_terseLabel_en-US" xlink:label="lab_pre_PreneticsHKMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prenetics HK</link:label>
    <link:label id="lab_pre_PreneticsHKMember_label_en-US" xlink:label="lab_pre_PreneticsHKMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prenetics HK [Member]</link:label>
    <link:label id="lab_pre_PreneticsHKMember_documentation_en-US" xlink:label="lab_pre_PreneticsHKMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Prenetics HK</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PreneticsHKMember" xlink:href="pre-20241231.xsd#pre_PreneticsHKMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PreneticsHKMember" xlink:to="lab_pre_PreneticsHKMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects_8326b946-01e5-44f5-a65d-193ac58266f5_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Loss)/earnings for the purpose of diluted (loss)/earnings per share being net loss attributable to equity shareholders of the Company, from the continuing operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from continuing operations attributable to ordinary equity holders of parent entity, used in calculating diluted earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:to="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts_59d672a1-f2e2-4dcb-9a69-ecfa271a07a9_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets, and rights arising under insurance contracts</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets, and rights arising under insurance contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts" xlink:to="lab_ifrs-full_NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted_5d1fb822-ae59-4163-9cde-5fb299c5b691_terseLabel_en-US" xlink:label="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected Dividend As Percentage, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected Dividend As Percentage, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expected Dividend As Percentage, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" xlink:to="lab_pre_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherIncome_efa37ae8-7bb6-4c44-9902-e6e498e4f291_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_ifrs-full_OtherIncome_label_en-US" xlink:label="lab_ifrs-full_OtherIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherIncome" xlink:to="lab_ifrs-full_OtherIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock_f06e4b02-c862-4fee-b5ef-ae046b8db05e_terseLabel_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities for puttable financial instrument</link:label>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock_label_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LiabilitiesForPuttableFinancialInstrument [Text Block]</link:label>
    <link:label id="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock_documentation_en-US" xlink:label="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LiabilitiesForPuttableFinancialInstrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock" xlink:href="pre-20241231.xsd#pre_LiabilitiesForPuttableFinancialInstrumentTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock" xlink:to="lab_pre_LiabilitiesForPuttableFinancialInstrumentTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock_8da72660-e6c2-4c9b-8666-3ca6a4a74b45_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of amounts included in the consolidated statement of cash flows</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Cash Flows For Leases Explantory [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Cash Flows For Leases Explantory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock" xlink:to="lab_pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesExplantoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentInformationTable_cd1755c2-51f6-4ada-bbd4-405c4771a447_terseLabel_en-US" xlink:label="lab_dei_DocumentInformationTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Information [Table]</link:label>
    <link:label id="lab_dei_DocumentInformationTable_label_en-US" xlink:label="lab_dei_DocumentInformationTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationTable" xlink:to="lab_dei_DocumentInformationTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies_d6b01915-c390-42d4-b21b-c5f3e88e6e65_verboseLabel_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net cash used in operating activities</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies_label_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Increase Decrease In Receivables From Related Companies</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies_documentation_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Increase Decrease In Receivables From Related Companies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies" xlink:href="pre-20241231.xsd#pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies" xlink:to="lab_pre_AdjustmentsForIncreaseDecreaseInReceivablesFromRelatedCompanies" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueMember_88284680-c521-42ec-b416-ebddba897951_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value, class [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value, class [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ValueOfBusinessAcquiredMember_8f0c000c-ab51-49be-b5b9-8340245373d4_terseLabel_en-US" xlink:label="lab_ifrs-full_ValueOfBusinessAcquiredMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Value of business acquired [member]</link:label>
    <link:label id="lab_ifrs-full_ValueOfBusinessAcquiredMember_label_en-US" xlink:label="lab_ifrs-full_ValueOfBusinessAcquiredMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Value of business acquired [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValueOfBusinessAcquiredMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValueOfBusinessAcquiredMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ValueOfBusinessAcquiredMember" xlink:to="lab_ifrs-full_ValueOfBusinessAcquiredMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_12a545fa-6ae4-4b26-a521-a45f1ba6c90d_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax effect of expense not deductible in determining taxable profit (tax loss)</link:label>
    <link:label id="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_label_en-US" xlink:label="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect of expense not deductible in determining taxable profit (tax loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:to="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmortisationExpense_b692e115-422c-4d15-9f63-f419593c2f1e_terseLabel_en-US" xlink:label="lab_ifrs-full_AmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of intangible assets</link:label>
    <link:label id="lab_ifrs-full_AmortisationExpense_label_en-US" xlink:label="lab_ifrs-full_AmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmortisationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmortisationExpense" xlink:to="lab_ifrs-full_AmortisationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract_412aecbe-dc22-41c4-96ca-c93eb6aad188_terseLabel_en-US" xlink:label="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Analysis of income and expense [abstract]</link:label>
    <link:label id="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Analysis of income and expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFilerCategory_15b25e33-59a4-41f2-b21a-d32df9efc087_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:label id="lab_dei_EntityFilerCategory_label_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_cb3c0fad-695d-4fbb-967e-150a7ed71b51_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_d19e45ed-3813-4d91-9808-9861335c0455_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities_e1eba0f0-f349-47aa-a7f8-32d7a338b87f_terseLabel_en-US" xlink:label="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Change In Fair Value Of Financial Liabilities</link:label>
    <link:label id="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities_label_en-US" xlink:label="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Change In Fair Value Of Financial Liabilities</link:label>
    <link:label id="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities_documentation_en-US" xlink:label="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Change In Fair Value Of Financial Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:href="pre-20241231.xsd#pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:to="lab_pre_GainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory_0a39fd6a-d1c9-45cd-a83a-7758b8e1e77e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of detailed information of joint venture</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interests in joint arrangements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_aac9e4ed-c221-4316-aab6-fb1be8b76587_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Later than two years and not later than five years [member]</link:label>
    <link:label id="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than two years and not later than five years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:to="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract_ef503144-f4dc-4137-908f-1f287cff5bf4_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reporting entity</link:label>
    <link:label id="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract_label_en-US" xlink:label="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of General Information About Reporting Entity [Abstract]</link:label>
    <link:label id="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract_documentation_en-US" xlink:label="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of General Information About Reporting Entity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract" xlink:href="pre-20241231.xsd#pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract" xlink:to="lab_pre_DisclosureOfGeneralInformationAboutReportingEntityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember_6273ccf1-1e30-4e2b-849a-7298fc3cab40_terseLabel_en-US" xlink:label="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share exchange agreement and subscription agreement</link:label>
    <link:label id="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember_label_en-US" xlink:label="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement And Subscription Agreement [Member]</link:label>
    <link:label id="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember_documentation_en-US" xlink:label="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement And Subscription Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareExchangeAgreementAndSubscriptionAgreementMember" xlink:href="pre-20241231.xsd#pre_ShareExchangeAgreementAndSubscriptionAgreementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareExchangeAgreementAndSubscriptionAgreementMember" xlink:to="lab_pre_ShareExchangeAgreementAndSubscriptionAgreementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent_b0b6b1b7-ac57-4264-ac12-065b13db0d94_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income (loss) from continuing operations, attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income from continuing operations, attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeMember_2dbcd5ee-f531-474e-8164-238ce51cb67a_terseLabel_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:label id="lab_srt_RangeMember_label_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeMember" xlink:to="lab_srt_RangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare_b80e45b1-bd25-4ae7-bfb1-0dce45c5653b_terseLabel_en-US" xlink:label="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of warrants or rights exercise price (in US Dollars per share)</link:label>
    <link:label id="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare_label_en-US" xlink:label="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class Of Warrants Or Rights Exercise Price Per Share</link:label>
    <link:label id="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare_documentation_en-US" xlink:label="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class Of Warrants Or Rights Exercise Price Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:href="pre-20241231.xsd#pre_ClassOfWarrantsOrRightsExercisePricePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:to="lab_pre_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory_3acc4179-3ccc-4563-bf0f-6ac37fbbcaae_verboseLabel_en-US" xlink:label="lab_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of contract liabilities</link:label>
    <link:label id="lab_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Explanation of significant changes in contract assets and contract liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory" xlink:to="lab_ifrs-full_ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems_89150204-5a6d-443e-8b74-3e2d09f565b1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromIssueOfOrdinaryShares_6c1a7a6f-74d0-4d91-b1d5-cd789c68d246_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from issue of ordinary shares</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromIssueOfOrdinaryShares_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from issue of ordinary shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfOrdinaryShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:to="lab_ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ServicesTransferredOvertimeMember_eb5fe7ad-7777-4da2-bc7c-4daf72ece381_terseLabel_en-US" xlink:label="lab_pre_ServicesTransferredOvertimeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Services Transferred Overtime [Member]</link:label>
    <link:label id="lab_pre_ServicesTransferredOvertimeMember_label_en-US" xlink:label="lab_pre_ServicesTransferredOvertimeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Services Transferred Overtime [Member]</link:label>
    <link:label id="lab_pre_ServicesTransferredOvertimeMember_documentation_en-US" xlink:label="lab_pre_ServicesTransferredOvertimeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Services Transferred Overtime</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ServicesTransferredOvertimeMember" xlink:href="pre-20241231.xsd#pre_ServicesTransferredOvertimeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ServicesTransferredOvertimeMember" xlink:to="lab_pre_ServicesTransferredOvertimeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EarningsPerShareAbstract_77445c4b-823a-49bc-8779-6efac6fd539a_terseLabel_en-US" xlink:label="lab_ifrs-full_EarningsPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnings per share [abstract]</link:label>
    <link:label id="lab_ifrs-full_EarningsPerShareAbstract_bc2b3211-124e-4257-8bf3-a7db8c5cb9a1_verboseLabel_en-US" xlink:label="lab_ifrs-full_EarningsPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Earnings per share [abstract]</link:label>
    <link:label id="lab_ifrs-full_EarningsPerShareAbstract_label_en-US" xlink:label="lab_ifrs-full_EarningsPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings per share [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EarningsPerShareAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareAbstract" xlink:to="lab_ifrs-full_EarningsPerShareAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccountingProfit_ca65d5cf-0d81-4205-95f0-43badb99051f_terseLabel_en-US" xlink:label="lab_ifrs-full_AccountingProfit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting profit</link:label>
    <link:label id="lab_ifrs-full_AccountingProfit_label_en-US" xlink:label="lab_ifrs-full_AccountingProfit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting profit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccountingProfit" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccountingProfit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccountingProfit" xlink:to="lab_ifrs-full_AccountingProfit" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_DirectorMember_7c8e7bbb-aed2-420d-a7a3-816ed98630eb_terseLabel_en-US" xlink:label="lab_srt_DirectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Director [Member]</link:label>
    <link:label id="lab_srt_DirectorMember_label_en-US" xlink:label="lab_srt_DirectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Director [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_DirectorMember" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_DirectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_DirectorMember" xlink:to="lab_srt_DirectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RestrictedShareUnitsMember_ead130c7-3ecf-44cb-ab72-8ab483d9db81_terseLabel_en-US" xlink:label="lab_ifrs-full_RestrictedShareUnitsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted share units</link:label>
    <link:label id="lab_ifrs-full_RestrictedShareUnitsMember_label_en-US" xlink:label="lab_ifrs-full_RestrictedShareUnitsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted share units [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RestrictedShareUnitsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RestrictedShareUnitsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RestrictedShareUnitsMember" xlink:to="lab_ifrs-full_RestrictedShareUnitsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_b5d9c9b7-e65b-4dc4-9ebc-93ead4a64062_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign exchange gain (loss)</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign exchange gain (loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_f368a0ef-390a-47bd-8782-008b66eddc65_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement_0663527f-fc3e-4879-b93c-3e929ce4c132_terseLabel_en-US" xlink:label="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options cancelled (in US dollars per share)</link:label>
    <link:label id="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement_label_en-US" xlink:label="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Exercise Price Of Share Options Cancelled In Share-based Payment Arrangement</link:label>
    <link:label id="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement_documentation_en-US" xlink:label="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted Average Exercise Price Of Share Options Cancelled In Share-based Payment Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:href="pre-20241231.xsd#pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:to="lab_pre_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_3e186004-2e39-4ec4-aca7-7d01692e2491_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of employee benefits expense [abstract]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of employee benefits expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:to="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems_2709484b-8ae9-403e-9569-d53656800081_terseLabel_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Trade Financing [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems_label_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Trade Financing [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems_documentation_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Trade Financing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureInEntiretyOfTradeFinancingLineItems" xlink:href="pre-20241231.xsd#pre_DisclosureInEntiretyOfTradeFinancingLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureInEntiretyOfTradeFinancingLineItems" xlink:to="lab_pre_DisclosureInEntiretyOfTradeFinancingLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IndirectBeneficialInterestMember_04f5e70e-c641-4b70-bc1f-3554aa7f8207_terseLabel_en-US" xlink:label="lab_pre_IndirectBeneficialInterestMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Indirect beneficial interest (%)</link:label>
    <link:label id="lab_pre_IndirectBeneficialInterestMember_label_en-US" xlink:label="lab_pre_IndirectBeneficialInterestMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Indirect Beneficial Interest [Member]</link:label>
    <link:label id="lab_pre_IndirectBeneficialInterestMember_documentation_en-US" xlink:label="lab_pre_IndirectBeneficialInterestMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Indirect Beneficial Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IndirectBeneficialInterestMember" xlink:href="pre-20241231.xsd#pre_IndirectBeneficialInterestMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IndirectBeneficialInterestMember" xlink:to="lab_pre_IndirectBeneficialInterestMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable_44b49756-d5a0-47a4-a879-a99c7874b462_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of associates [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of associates [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented_d94cf643-be30-47d1-a474-43591bc06394_verboseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Anti-dilutive excluded from the diluted weighted-average number of ordinary shares (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented_label_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of instruments that are antidilutive in period presented</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented" xlink:to="lab_ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTable_f3ce8cc5-df34-41cb-b788-43cf3f7bd0b9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueOfCombinedEntity_c4211649-0cd7-4d4e-86f5-a08f78899fb3_verboseLabel_en-US" xlink:label="lab_ifrs-full_RevenueOfCombinedEntity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Revenue of combined entity as if combination occurred at beginning of period</link:label>
    <link:label id="lab_ifrs-full_RevenueOfCombinedEntity_label_en-US" xlink:label="lab_ifrs-full_RevenueOfCombinedEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue of combined entity as if combination occurred at beginning of period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueOfCombinedEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueOfCombinedEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueOfCombinedEntity" xlink:to="lab_ifrs-full_RevenueOfCombinedEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_349bce4f-6317-47c0-a0a4-dbf4bceafa6b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of key management personnel compensation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about key management personnel [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_bace3a33-9664-496c-9f1f-c10f127466f9_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfAntidilutiveInstrumentsAxis_1707e9a7-cf19-4766-9bc3-b149db85e0c9_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of antidilutive instruments [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfAntidilutiveInstrumentsAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of antidilutive instruments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:to="lab_ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressesAddressTypeAxis_41523a86-1a76-44f2-961b-6150cf4d247f_terseLabel_en-US" xlink:label="lab_dei_EntityAddressesAddressTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Addresses, Address Type [Axis]</link:label>
    <link:label id="lab_dei_EntityAddressesAddressTypeAxis_label_en-US" xlink:label="lab_dei_EntityAddressesAddressTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Addresses, Address Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesAddressTypeAxis" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressesAddressTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressesAddressTypeAxis" xlink:to="lab_dei_EntityAddressesAddressTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate_7f0b9f86-4012-480e-b576-e426ce091bfc_terseLabel_en-US" xlink:label="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant And Equipment And Intangible Assets Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant And Equipment And Intangible Assets Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Property, Plant And Equipment And Intangible Assets Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_PropertyPlantAndEquipmentAndIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SeriesBPreferenceSharesMember_1a79c472-8a9a-45c7-adb8-9068aac47868_terseLabel_en-US" xlink:label="lab_pre_SeriesBPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Series B preference shares</link:label>
    <link:label id="lab_pre_SeriesBPreferenceSharesMember_label_en-US" xlink:label="lab_pre_SeriesBPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series B Preference Shares [Member]</link:label>
    <link:label id="lab_pre_SeriesBPreferenceSharesMember_documentation_en-US" xlink:label="lab_pre_SeriesBPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series B Preference Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SeriesBPreferenceSharesMember" xlink:href="pre-20241231.xsd#pre_SeriesBPreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SeriesBPreferenceSharesMember" xlink:to="lab_pre_SeriesBPreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss_d444957b-b140-4387-b4f5-a079c4800ed5_negatedLabel_en-US" xlink:label="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax Effect Utilization Of Previously Unrecognized Tax Loss</link:label>
    <link:label id="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss_label_en-US" xlink:label="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Utilization Of Previously Unrecognized Tax Loss</link:label>
    <link:label id="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss_documentation_en-US" xlink:label="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Utilization Of Previously Unrecognized Tax Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss" xlink:href="pre-20241231.xsd#pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss" xlink:to="lab_pre_TaxEffectUtilizationOfPreviouslyUnrecognizedTaxLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate_d472ec63-5821-4a45-b4bf-5ae4677d5bb7_negatedLabel_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherFinanceCost_439bc21c-95ab-4202-837c-7aee446905e9_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_OtherFinanceCost" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other finance cost</link:label>
    <link:label id="lab_ifrs-full_OtherFinanceCost_label_en-US" xlink:label="lab_ifrs-full_OtherFinanceCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other finance cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherFinanceCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherFinanceCost" xlink:to="lab_ifrs-full_OtherFinanceCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_1d94f196-7205-4189-9bc6-8b5a7c37e535_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsTable_b42cc34b-a324-48d8-bf59-43e7e07366f0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfEquityDomain_9f2b2122-38a1-4f76-8b28-83e307d907ff_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of equity [domain]</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfEquityDomain_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of equity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain" xlink:to="lab_ifrs-full_ComponentsOfEquityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SaleOfStockNumberOfWarrantsIssued_ed968133-a971-4231-86c2-ed7e57be16b7_terseLabel_en-US" xlink:label="lab_pre_SaleOfStockNumberOfWarrantsIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of warrants issued (in shares)</link:label>
    <link:label id="lab_pre_SaleOfStockNumberOfWarrantsIssued_label_en-US" xlink:label="lab_pre_SaleOfStockNumberOfWarrantsIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Stock, Number Of Warrants Issued</link:label>
    <link:label id="lab_pre_SaleOfStockNumberOfWarrantsIssued_documentation_en-US" xlink:label="lab_pre_SaleOfStockNumberOfWarrantsIssued" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Stock, Number Of Warrants Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SaleOfStockNumberOfWarrantsIssued" xlink:href="pre-20241231.xsd#pre_SaleOfStockNumberOfWarrantsIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SaleOfStockNumberOfWarrantsIssued" xlink:to="lab_pre_SaleOfStockNumberOfWarrantsIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_4c6bfa20-1bfc-4e42-a452-3ca2c8917eb7_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax expense (income) at applicable tax rate</link:label>
    <link:label id="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_label_en-US" xlink:label="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax expense (income) at applicable tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxExpenseIncomeAtApplicableTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:to="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity_4fe88a33-2e18-4327-b258-7971a8b4c602_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive expense for the year</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Reverse Recapitalization, Equity</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Reverse Recapitalization, Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughReverseRecapitalizationEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity" xlink:to="lab_pre_IncreaseDecreaseThroughReverseRecapitalizationEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_e85fb9d4-180a-4e4f-991d-52b3cb0209d7_terseLabel_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued expenses and other current liabilities</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_label_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities [Abstract]</link:label>
    <link:label id="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract_documentation_en-US" xlink:label="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expenses And Other Current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:href="pre-20241231.xsd#pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="lab_pre_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_c376eb57-2631-43af-af85-c5cfd9b6505d_negatedLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialLiabilities" xlink:to="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OverseasMember_d7c253a3-06eb-42d3-bdaa-a8fd160c5d0e_terseLabel_en-US" xlink:label="lab_pre_OverseasMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Overseas</link:label>
    <link:label id="lab_pre_OverseasMember_label_en-US" xlink:label="lab_pre_OverseasMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Overseas [Member]</link:label>
    <link:label id="lab_pre_OverseasMember_documentation_en-US" xlink:label="lab_pre_OverseasMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Overseas</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OverseasMember" xlink:href="pre-20241231.xsd#pre_OverseasMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OverseasMember" xlink:to="lab_pre_OverseasMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentPrepayments_36bfa7b9-fe28-4462-9328-17dc4fd6934f_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentPrepayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentPrepayments_f573011f-2f93-442c-978d-4eebd9e9db2f_verboseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentPrepayments" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred expenses</link:label>
    <link:label id="lab_ifrs-full_NoncurrentPrepayments_label_en-US" xlink:label="lab_ifrs-full_NoncurrentPrepayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current prepayments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentPrepayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPrepayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentPrepayments" xlink:to="lab_ifrs-full_NoncurrentPrepayments" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock_2a2cc0bc-6cd6-4c4f-8c68-c5ded19d5204_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLoss [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLoss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:to="lab_pre_ScheduleOfFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_76c19a76-49b3-4c2a-a5f3-2a6d5fa7dd6c_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive expense for the period</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_37022570-594b-46c5-bf17-ca4352609827_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncome" xlink:to="lab_ifrs-full_OtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate_5aa442c4-9888-47ee-90f9-5818cf9f56de_terseLabel_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits, Prepayments And Other Receivables Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits, Prepayments And Other Receivables Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposits, Prepayments And Other Receivables Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_DepositsPrepaymentsAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_b2068d7c-de56-4166-8460-adabd833fa8c_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales of investments accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_f79eb57c-338b-4779-9615-9ee51b302c9f_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales of investments accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales of investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems_ea63eca7-07e1-4137-bc87-24e563e0932d_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from puttable financial instrument [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems_label_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reconciliation Of Liabilities Arising From Puttable Financial Instrument [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems_documentation_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Reconciliation Of Liabilities Arising From Puttable Financial Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems" xlink:href="pre-20241231.xsd#pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems" xlink:to="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities_b64121d3-2d24-4d6c-876c-b775a9026e46_terseLabel_en-US" xlink:label="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Change In Fair Value Of Warrant Liabilities</link:label>
    <link:label id="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities_label_en-US" xlink:label="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Change In Fair Value Of Warrant Liabilities</link:label>
    <link:label id="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities_documentation_en-US" xlink:label="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Change In Fair Value Of Warrant Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities" xlink:href="pre-20241231.xsd#pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities" xlink:to="lab_pre_GainsLossesOnChangeInFairValueOfWarrantLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DirectBeneficialInterestMember_bed4c225-d34c-46a0-9390-5702cfbb584d_terseLabel_en-US" xlink:label="lab_pre_DirectBeneficialInterestMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Direct beneficial interest (%)</link:label>
    <link:label id="lab_pre_DirectBeneficialInterestMember_label_en-US" xlink:label="lab_pre_DirectBeneficialInterestMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Direct Beneficial Interest [Member]</link:label>
    <link:label id="lab_pre_DirectBeneficialInterestMember_documentation_en-US" xlink:label="lab_pre_DirectBeneficialInterestMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Direct Beneficial Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DirectBeneficialInterestMember" xlink:href="pre-20241231.xsd#pre_DirectBeneficialInterestMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DirectBeneficialInterestMember" xlink:to="lab_pre_DirectBeneficialInterestMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncontrollingInterests_8336587d-3133-4df3-a67f-36a69642fb54_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_NoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncontrollingInterests" xlink:to="lab_ifrs-full_NoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromInterest_27580e3f-a948-46c0-bafd-2017a3789d03_verboseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromInterest" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_ifrs-full_RevenueFromInterest_c4a6e208-fbdc-42d1-983e-0f0dfdd32e24_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_ifrs-full_RevenueFromInterest_label_en-US" xlink:label="lab_ifrs-full_RevenueFromInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromInterest" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromInterest" xlink:to="lab_ifrs-full_RevenueFromInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable_9e9899d4-e069-4429-ab31-aa012ef77505_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossLeaseLiabilities_174d88bc-7e9f-40a3-a746-09127c809704_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross lease liabilities</link:label>
    <link:label id="lab_ifrs-full_GrossLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_GrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossLeaseLiabilities" xlink:to="lab_ifrs-full_GrossLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EarningsPerShareTable_5676627c-0d4d-42b5-bc0d-562fa120ceb9_terseLabel_en-US" xlink:label="lab_ifrs-full_EarningsPerShareTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnings per share [table]</link:label>
    <link:label id="lab_ifrs-full_EarningsPerShareTable_label_en-US" xlink:label="lab_ifrs-full_EarningsPerShareTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings per share [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EarningsPerShareTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareTable" xlink:to="lab_ifrs-full_EarningsPerShareTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock_e287320b-3fb3-4144-882c-232629979812_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of credit risk grading framework</link:label>
    <link:label id="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Credit Risk Grading Framework [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Credit Risk Grading Framework</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock" xlink:to="lab_pre_ScheduleOfCreditRiskGradingFrameworkTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsByNameAxis_edf62ed6-a03e-4c54-8e49-f7ef1043fc42_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsByNameAxis_label_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameAxis" xlink:to="lab_ifrs-full_BorrowingsByNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears_4742c38b-168e-4040-abb3-96bafff9483a_negatedTerseLabel_en-US" xlink:label="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax Effect Over Provision In Respect Of Prior Years</link:label>
    <link:label id="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears_label_en-US" xlink:label="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Over Provision In Respect Of Prior Years</link:label>
    <link:label id="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears_documentation_en-US" xlink:label="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Over Provision In Respect Of Prior Years</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TaxEffectOverProvisionInRespectOfPriorYears" xlink:href="pre-20241231.xsd#pre_TaxEffectOverProvisionInRespectOfPriorYears"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TaxEffectOverProvisionInRespectOfPriorYears" xlink:to="lab_pre_TaxEffectOverProvisionInRespectOfPriorYears" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate_8561eb00-7ce0-4e72-a7e2-1280fd99ba0b_terseLabel_en-US" xlink:label="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interests In Equity Accounted Investee Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interests In Equity Accounted Investee Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interests In Equity Accounted Investee Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_InterestsInEquityAccountedInvesteeRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired_c225f293-7f6b-4c33-871c-4e306a414ef5_terseLabel_en-US" xlink:label="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of voting equity interests acquired (%)</link:label>
    <link:label id="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired_05d5ad4e-b162-403d-84a4-f3262f514a41_verboseLabel_en-US" xlink:label="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of equity interest acquired (%)</link:label>
    <link:label id="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired_label_en-US" xlink:label="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of voting equity interests acquired</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:to="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CashFlowProjectionsPeriod_75a4769b-b83b-4ed2-99ab-96a987b94549_terseLabel_en-US" xlink:label="lab_pre_CashFlowProjectionsPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow projections period</link:label>
    <link:label id="lab_pre_CashFlowProjectionsPeriod_label_en-US" xlink:label="lab_pre_CashFlowProjectionsPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow Projections, Period</link:label>
    <link:label id="lab_pre_CashFlowProjectionsPeriod_documentation_en-US" xlink:label="lab_pre_CashFlowProjectionsPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Flow Projections, Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CashFlowProjectionsPeriod" xlink:href="pre-20241231.xsd#pre_CashFlowProjectionsPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CashFlowProjectionsPeriod" xlink:to="lab_pre_CashFlowProjectionsPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComputerEquipmentMember_618070f2-774a-4af7-a03a-885ddc602ab7_terseLabel_en-US" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Computer equipment [member]</link:label>
    <link:label id="lab_ifrs-full_ComputerEquipmentMember_label_en-US" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Computer equipment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComputerEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComputerEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComputerEquipmentMember" xlink:to="lab_ifrs-full_ComputerEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory_a42aec47-52d6-448c-9bef-6a7ac205c4ab_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income tax credit</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of income tax [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_InDefaultMember_b18df5b0-9ce5-4027-b6de-1a916ec95712_terseLabel_en-US" xlink:label="lab_pre_InDefaultMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">In Default [Member]</link:label>
    <link:label id="lab_pre_InDefaultMember_label_en-US" xlink:label="lab_pre_InDefaultMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">In Default [Member]</link:label>
    <link:label id="lab_pre_InDefaultMember_documentation_en-US" xlink:label="lab_pre_InDefaultMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">In Default</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_InDefaultMember" xlink:href="pre-20241231.xsd#pre_InDefaultMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_InDefaultMember" xlink:to="lab_pre_InDefaultMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember_4348cec2-6f2d-4c8d-a1e1-fcfa25233d85_terseLabel_en-US" xlink:label="lab_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate continuing and discontinued operations</link:label>
    <link:label id="lab_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember_label_en-US" xlink:label="lab_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate continuing and discontinued operations [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember" xlink:to="lab_ifrs-full_AggregateContinuingAndDiscontinuedOperationsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod_177f5ad8-9004-4a9c-88df-421eb92caacb_negatedLabel_en-US" xlink:label="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax Effect Of Previously Unrecognized Temporary Differences Recognized In Current Period</link:label>
    <link:label id="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod_label_en-US" xlink:label="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Of Previously Unrecognized Temporary Differences Recognized In Current Period</link:label>
    <link:label id="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod_documentation_en-US" xlink:label="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Of Previously Unrecognized Temporary Differences Recognized In Current Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod" xlink:href="pre-20241231.xsd#pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod" xlink:to="lab_pre_TaxEffectOfPreviouslyUnrecognizedTemporaryDifferencesRecognizedInCurrentPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_e003de89-b1d2-4211-b688-3f08dc3179a4_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation</link:label>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated depreciation, amortisation and impairment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:to="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities_9045ded3-185f-487f-b08b-91f63895e6e5_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Fair Value Financial Liabilities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Fair Value Financial Liabilities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Fair Value Financial Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities" xlink:to="lab_pre_IncreaseDecreaseThroughChangesInFairValueFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyDomain_891af8c0-bb27-497f-98d1-698d9a330ea3_terseLabel_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyDomain_label_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock_8a9e221d-e03f-451f-99f5-8a7b86cc40b5_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of other non-current assets</link:label>
    <link:label id="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DisclosureOfOtherNoncurrentAssets [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DisclosureOfOtherNoncurrentAssets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock" xlink:to="lab_pre_DisclosureOfOtherNoncurrentAssetsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RangeAxis_087ad076-ac54-4cd2-b03f-ef612e473a61_terseLabel_en-US" xlink:label="lab_ifrs-full_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Range [axis]</link:label>
    <link:label id="lab_ifrs-full_RangeAxis_label_en-US" xlink:label="lab_ifrs-full_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangeAxis" xlink:to="lab_ifrs-full_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_560b5242-87d3-4a59-8b25-4052ebc75c92_periodStartLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Outstanding at the beginning of the year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_9be044a4-5f4b-458a-a07e-cea175377fc1_periodEndLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Outstanding at the end of the year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_881d1248-78f0-4999-9ab6-6dba4614ed44_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted share units granted (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of other equity instruments outstanding in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_2ffa4570-a1f8-48fa-99a2-79066a5e63a3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestructuringChargesAxis_bfe59e9d-8354-4e0b-8be5-99018209f9de_terseLabel_en-US" xlink:label="lab_pre_RestructuringChargesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Charges [Axis]</link:label>
    <link:label id="lab_pre_RestructuringChargesAxis_label_en-US" xlink:label="lab_pre_RestructuringChargesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Charges [Axis]</link:label>
    <link:label id="lab_pre_RestructuringChargesAxis_documentation_en-US" xlink:label="lab_pre_RestructuringChargesAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Charges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestructuringChargesAxis" xlink:href="pre-20241231.xsd#pre_RestructuringChargesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestructuringChargesAxis" xlink:to="lab_pre_RestructuringChargesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PercentageOfOwnershipInterestDisposed_1b823b88-995a-41f4-9b5b-27316fa4c1e3_terseLabel_en-US" xlink:label="lab_pre_PercentageOfOwnershipInterestDisposed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of ownership interest disposed (%)</link:label>
    <link:label id="lab_pre_PercentageOfOwnershipInterestDisposed_label_en-US" xlink:label="lab_pre_PercentageOfOwnershipInterestDisposed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Ownership Interest Disposed</link:label>
    <link:label id="lab_pre_PercentageOfOwnershipInterestDisposed_documentation_en-US" xlink:label="lab_pre_PercentageOfOwnershipInterestDisposed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage Of Ownership Interest Disposed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PercentageOfOwnershipInterestDisposed" xlink:href="pre-20241231.xsd#pre_PercentageOfOwnershipInterestDisposed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PercentageOfOwnershipInterestDisposed" xlink:to="lab_pre_PercentageOfOwnershipInterestDisposed" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityLineItems_9e195a34-af05-469a-99a1-b27a1c2f1c5b_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityLineItems_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentContractLiabilities_de91481b-0d7b-405a-b2a3-660dc0fe4697_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current contract liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentContractLiabilities_61692994-bf9f-4f5b-b9e4-568f67808dae_periodStartLabel_en-US" xlink:label="lab_ifrs-full_CurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Current contract liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentContractLiabilities_988a0cab-a754-4211-b341-8c5e15d4247e_periodEndLabel_en-US" xlink:label="lab_ifrs-full_CurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Current contract liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentContractLiabilities" xlink:to="lab_ifrs-full_CurrentContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities_7cab7739-effd-448b-9335-6000509d9836_negatedLabel_en-US" xlink:label="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Adjustments For Fair Value Gain On Warrant Liabilities</link:label>
    <link:label id="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities_label_en-US" xlink:label="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Fair Value Gain On Warrant Liabilities</link:label>
    <link:label id="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities_documentation_en-US" xlink:label="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Fair Value Gain On Warrant Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForFairValueGainOnWarrantLiabilities" xlink:href="pre-20241231.xsd#pre_AdjustmentsForFairValueGainOnWarrantLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForFairValueGainOnWarrantLiabilities" xlink:to="lab_pre_AdjustmentsForFairValueGainOnWarrantLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfCashFlowsAbstract_93b2bece-cef5-4aa8-99c2-e2c8e5a6e36c_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of cash flows [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfCashFlowsAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of cash flows [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SecurityDetailsAxis_d40038ec-e25c-402a-94f3-89d095ecc9c0_terseLabel_en-US" xlink:label="lab_pre_SecurityDetailsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Details [Axis]</link:label>
    <link:label id="lab_pre_SecurityDetailsAxis_label_en-US" xlink:label="lab_pre_SecurityDetailsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Details [Axis]</link:label>
    <link:label id="lab_pre_SecurityDetailsAxis_documentation_en-US" xlink:label="lab_pre_SecurityDetailsAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Security Details</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SecurityDetailsAxis" xlink:href="pre-20241231.xsd#pre_SecurityDetailsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SecurityDetailsAxis" xlink:to="lab_pre_SecurityDetailsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncome_f30e7b7a-e5e4-4eb7-8154-5620a7295890_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current tax expense (income)</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherPayablesToRelatedParties_20b7959c-8416-42d1-8872-ad752db8740a_negatedLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherPayablesToRelatedParties" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payables to related parties</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherPayablesToRelatedParties_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherPayablesToRelatedParties" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payables to related parties</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesToRelatedParties"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties" xlink:to="lab_ifrs-full_TradeAndOtherPayablesToRelatedParties" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SecurityExchangeName_49454463-dbd4-4fce-bae7-ac25df525acb_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_label_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ThirdPartiesMember_1e95d2a0-aea4-486a-a67f-3fbcf931b9bf_terseLabel_en-US" xlink:label="lab_pre_ThirdPartiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Third Parties [Member]</link:label>
    <link:label id="lab_pre_ThirdPartiesMember_label_en-US" xlink:label="lab_pre_ThirdPartiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Third Parties [Member]</link:label>
    <link:label id="lab_pre_ThirdPartiesMember_documentation_en-US" xlink:label="lab_pre_ThirdPartiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Third Parties</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ThirdPartiesMember" xlink:href="pre-20241231.xsd#pre_ThirdPartiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ThirdPartiesMember" xlink:to="lab_pre_ThirdPartiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_0a4cf061-1c9f-4ff7-ac8b-088c9b8e1f46_terseLabel_en-US" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Post-employment benefit expense, defined contribution plans</link:label>
    <link:label id="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_label_en-US" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Post-employment benefit expense, defined contribution plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:to="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EarningsPerShareExplanatory_0ed8c19b-5ffd-4a4b-b9c3-987ed552ed80_verboseLabel_en-US" xlink:label="lab_ifrs-full_EarningsPerShareExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of basic and diluted loss per share</link:label>
    <link:label id="lab_ifrs-full_EarningsPerShareExplanatory_label_en-US" xlink:label="lab_ifrs-full_EarningsPerShareExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings per share [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareExplanatory" xlink:to="lab_ifrs-full_EarningsPerShareExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued_0185ac44-bb96-424d-89c3-ebca392ff7f5_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in number of ordinary shares issued (in shares)</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in number of ordinary shares issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:to="lab_ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations_dc5c90ba-faca-4a54-9a6c-25ff9f51b4ab_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities, discontinued operations</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities, discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_f99796cf-e886-4222-9a02-98d098eee8a0_periodStartLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of stock options the beginning of year (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_6a13acc4-c6a0-4d31-b49c-35ac276234a1_periodEndLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of stock options the end of year (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_592847dc-9917-42bd-8bb7-e029a9696c91_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options outstanding in share-based payment arrangement (in $ per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options outstanding in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentsDomain_387b664a-ef4e-459f-b5a2-e4fbead0f578_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [domain]</link:label>
    <link:label id="lab_ifrs-full_SegmentsDomain_label_en-US" xlink:label="lab_ifrs-full_SegmentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsDomain" xlink:to="lab_ifrs-full_SegmentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAbstract_2abe5ef4-f5ba-4394-9718-789419cb8c96_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) [abstract]</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAbstract_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="lab_ifrs-full_ProfitLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfFinancialPositionAbstract_b29f4b01-5379-4985-a34d-608d50f91e5f_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of financial position [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of financial position [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasTable_10d0989e-ceb7-4043-8e5f-1163ebf97f6d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsTable_1932c52b-c2cd-4358-9400-8079eb41d40b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OtherLiabilitiesUndiscountedCashFlows_8fdea306-1ba3-4855-b98a-df95cba3a121_terseLabel_en-US" xlink:label="lab_pre_OtherLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_pre_OtherLiabilitiesUndiscountedCashFlows_label_en-US" xlink:label="lab_pre_OtherLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Undiscounted Cash Flows</link:label>
    <link:label id="lab_pre_OtherLiabilitiesUndiscountedCashFlows_documentation_en-US" xlink:label="lab_pre_OtherLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Liabilities, Undiscounted Cash Flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OtherLiabilitiesUndiscountedCashFlows" xlink:href="pre-20241231.xsd#pre_OtherLiabilitiesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OtherLiabilitiesUndiscountedCashFlows" xlink:to="lab_pre_OtherLiabilitiesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_a1527d32-090e-4cf8-ada0-045f368d9084_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade and other payables, undiscounted cash flows</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other payables, undiscounted cash flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:to="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_aaf474c7-6ba2-4018-8d06-0a7f2f066b4e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of movement in the loss allowance account in respect of trade receivable</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of allowance for credit losses [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LargestCustomerMember_ac5e000c-bd4a-4ba6-89ea-807cb25aa53d_terseLabel_en-US" xlink:label="lab_pre_LargestCustomerMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Largest customer</link:label>
    <link:label id="lab_pre_LargestCustomerMember_label_en-US" xlink:label="lab_pre_LargestCustomerMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Largest Customer [Member]</link:label>
    <link:label id="lab_pre_LargestCustomerMember_documentation_en-US" xlink:label="lab_pre_LargestCustomerMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Largest Customer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LargestCustomerMember" xlink:href="pre-20241231.xsd#pre_LargestCustomerMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LargestCustomerMember" xlink:to="lab_pre_LargestCustomerMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IfrsAccruedProfessionalFeesCurrent_4d977474-07dd-47db-8ccc-73e2ebf3c1ab_terseLabel_en-US" xlink:label="lab_pre_IfrsAccruedProfessionalFeesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ifrs Accrued Professional Fees Current</link:label>
    <link:label id="lab_pre_IfrsAccruedProfessionalFeesCurrent_label_en-US" xlink:label="lab_pre_IfrsAccruedProfessionalFeesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ifrs Accrued Professional Fees Current</link:label>
    <link:label id="lab_pre_IfrsAccruedProfessionalFeesCurrent_documentation_en-US" xlink:label="lab_pre_IfrsAccruedProfessionalFeesCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Ifrs Accrued Professional Fees Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IfrsAccruedProfessionalFeesCurrent" xlink:href="pre-20241231.xsd#pre_IfrsAccruedProfessionalFeesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IfrsAccruedProfessionalFeesCurrent" xlink:to="lab_pre_IfrsAccruedProfessionalFeesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationTable_46375535-65ca-4be4-9232-c3e02b6010ab_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationTable_label_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationTable_documentation_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReverseRecapitalizationTable" xlink:href="pre-20241231.xsd#pre_DisclosureOfReverseRecapitalizationTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReverseRecapitalizationTable" xlink:to="lab_pre_DisclosureOfReverseRecapitalizationTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_080e686f-9da6-4c6a-8236-58a0482f8684_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Decrease (increase) in other receivables, deposits and prepayments</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in inventories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_0935a053-7b52-41c9-ac59-322f2ebfe8c5_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other payables and accruals</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxLiabilities" xlink:to="lab_ifrs-full_DeferredTaxLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted_87d0b360-62c6-47ef-a027-c0f661f8e936_terseLabel_en-US" xlink:label="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value at measurement date (in US dollar per share)</link:label>
    <link:label id="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value At Measurement Date Share Price, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value At Measurement Date Share Price, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted" xlink:to="lab_pre_FairValueAtMeasurementDateSharePriceOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_39e40fa9-007d-4255-8fc8-c8d5e34da99e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition of subsidiaries</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of business combinations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityDomain_694dc925-a6f6-4209-9223-76d55c6ea465_terseLabel_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:label id="lab_dei_EntityDomain_label_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMajorCustomersTable_a9801f51-bc26-4dd3-8459-33814f475a47_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMajorCustomersTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of major customers [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMajorCustomersTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMajorCustomersTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of major customers [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMajorCustomersTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMajorCustomersTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMajorCustomersTable" xlink:to="lab_ifrs-full_DisclosureOfMajorCustomersTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentReceivables_07ec1aa1-2fc6-4eb3-83b1-cc774dbee81b_totalLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Current</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentReceivables_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other current receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherExpenseByFunction_ed5ebaf6-7855-4185-a1c2-e4d34af472d8_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_OtherExpenseByFunction" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other expense</link:label>
    <link:label id="lab_ifrs-full_OtherExpenseByFunction_label_en-US" xlink:label="lab_ifrs-full_OtherExpenseByFunction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other expense, by function</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherExpenseByFunction" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherExpenseByFunction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherExpenseByFunction" xlink:to="lab_ifrs-full_OtherExpenseByFunction" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory_a84f2cdf-74be-45c6-9366-a370ac6fe241_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityInterestsOfAcquirer_057d74a5-5275-428f-9425-e30769b4c71a_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityInterestsOfAcquirer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity interests of acquirer</link:label>
    <link:label id="lab_ifrs-full_EquityInterestsOfAcquirer_label_en-US" xlink:label="lab_ifrs-full_EquityInterestsOfAcquirer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity interests of acquirer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInterestsOfAcquirer" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityInterestsOfAcquirer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityInterestsOfAcquirer" xlink:to="lab_ifrs-full_EquityInterestsOfAcquirer" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WarrantsAfterReverseStockSplitMember_dbf3bc9f-30a6-445f-bc95-383797ed9fed_terseLabel_en-US" xlink:label="lab_pre_WarrantsAfterReverseStockSplitMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrants after reverse stock split</link:label>
    <link:label id="lab_pre_WarrantsAfterReverseStockSplitMember_label_en-US" xlink:label="lab_pre_WarrantsAfterReverseStockSplitMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants After Reverse Stock Split [Member]</link:label>
    <link:label id="lab_pre_WarrantsAfterReverseStockSplitMember_documentation_en-US" xlink:label="lab_pre_WarrantsAfterReverseStockSplitMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Warrants After Reverse Stock Split</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WarrantsAfterReverseStockSplitMember" xlink:href="pre-20241231.xsd#pre_WarrantsAfterReverseStockSplitMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WarrantsAfterReverseStockSplitMember" xlink:to="lab_pre_WarrantsAfterReverseStockSplitMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_3eaa2acd-24ea-4ce6-8d1c-dc7e388d5f6b_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of stock options granted (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options granted in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable_2681be4f-3604-43af-985e-24c33fc1e626_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of instruments or interests issued or issuable (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable_label_en-US" xlink:label="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of instruments or interests issued or issuable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:to="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory_f1d2540f-c8f0-47b0-a26e-5c27655ea2b7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of goodwill</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseLiabilitiesAbstract_6e7a93d7-243c-49c3-8388-73b4a3429af2_terseLabel_en-US" xlink:label="lab_ifrs-full_LeaseLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:label id="lab_ifrs-full_LeaseLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_LeaseLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilitiesAbstract" xlink:to="lab_ifrs-full_LeaseLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnobservableInputsAxis_cf093dfd-4515-40a3-a2b7-aba5a9f497f3_terseLabel_en-US" xlink:label="lab_ifrs-full_UnobservableInputsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unobservable inputs [axis]</link:label>
    <link:label id="lab_ifrs-full_UnobservableInputsAxis_label_en-US" xlink:label="lab_ifrs-full_UnobservableInputsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unobservable inputs [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnobservableInputsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnobservableInputsAxis" xlink:to="lab_ifrs-full_UnobservableInputsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory_a1297631-d0f3-4779-a7dc-80e86a1b948f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of reconciliation of liabilities arising from financing activities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from financing activities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities_128c38e8-b2f5-41c7-9380-12a785bb05cf_verboseLabel_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Adjustments For Increase Decrease In Accrued Expenses And Other Current Liabilities</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities_label_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Increase Decrease In Accrued Expenses And Other Current Liabilities</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities_documentation_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Increase Decrease In Accrued Expenses And Other Current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities" xlink:href="pre-20241231.xsd#pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities" xlink:to="lab_pre_AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ConsiderationPaidReceived_6d3715fb-0059-4ffa-841c-e2996a18a68e_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ConsiderationPaidReceived" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Consideration received</link:label>
    <link:label id="lab_ifrs-full_ConsiderationPaidReceived_label_en-US" xlink:label="lab_ifrs-full_ConsiderationPaidReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consideration paid (received)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConsiderationPaidReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ConsiderationPaidReceived"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ConsiderationPaidReceived" xlink:to="lab_ifrs-full_ConsiderationPaidReceived" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_InsightaMember_512e81cc-aad0-411b-a5da-417e918e4b3c_terseLabel_en-US" xlink:label="lab_pre_InsightaMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insighta [Member]</link:label>
    <link:label id="lab_pre_InsightaMember_label_en-US" xlink:label="lab_pre_InsightaMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insighta [Member]</link:label>
    <link:label id="lab_pre_InsightaMember_documentation_en-US" xlink:label="lab_pre_InsightaMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Insighta</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_InsightaMember" xlink:href="pre-20241231.xsd#pre_InsightaMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_InsightaMember" xlink:to="lab_pre_InsightaMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_c71a523a-5ce1-489c-a1ee-4fe64aaf35b6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss for the year</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of profit (loss) from operating activities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_a77927b7-c34c-4f2d-9e00-94419e320e89_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_57391a8e-e7b8-42d9-9318-9ab3d0d7fc2b_netLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_4df2a9c6-fb75-4319-b6f2-30ea9dab18ee_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_964befd6-21a9-4f30-8721-4005780ba2d6_verboseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_ee1da242-d891-4bac-a820-ed816f08ab1f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of non-controlling interests [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShortTermDepositsMember_69ebfde8-2952-4153-aaae-628eaf14514c_terseLabel_en-US" xlink:label="lab_pre_ShortTermDepositsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-Term Deposits [Member]</link:label>
    <link:label id="lab_pre_ShortTermDepositsMember_label_en-US" xlink:label="lab_pre_ShortTermDepositsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-Term Deposits [Member]</link:label>
    <link:label id="lab_pre_ShortTermDepositsMember_documentation_en-US" xlink:label="lab_pre_ShortTermDepositsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Short-Term Deposits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShortTermDepositsMember" xlink:href="pre-20241231.xsd#pre_ShortTermDepositsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShortTermDepositsMember" xlink:to="lab_pre_ShortTermDepositsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TaxLossesUtilized_644682f1-badf-4d08-816d-fc006298d461_terseLabel_en-US" xlink:label="lab_pre_TaxLossesUtilized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax losses utilized</link:label>
    <link:label id="lab_pre_TaxLossesUtilized_label_en-US" xlink:label="lab_pre_TaxLossesUtilized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Losses Utilized</link:label>
    <link:label id="lab_pre_TaxLossesUtilized_documentation_en-US" xlink:label="lab_pre_TaxLossesUtilized" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Losses Utilized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TaxLossesUtilized" xlink:href="pre-20241231.xsd#pre_TaxLossesUtilized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TaxLossesUtilized" xlink:to="lab_pre_TaxLossesUtilized" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfessionalFeesExpense_ac0ec6aa-9b92-45b3-bf81-6833b20e5265_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Professional services expenditure</link:label>
    <link:label id="lab_ifrs-full_ProfessionalFeesExpense_label_en-US" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Professional fees expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfessionalFeesExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfessionalFeesExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfessionalFeesExpense" xlink:to="lab_ifrs-full_ProfessionalFeesExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityVoluntaryFilers_5c04200d-028d-41c8-b54e-db530539437b_terseLabel_en-US" xlink:label="lab_dei_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:label id="lab_dei_EntityVoluntaryFilers_label_en-US" xlink:label="lab_dei_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityVoluntaryFilers" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityVoluntaryFilers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers" xlink:to="lab_dei_EntityVoluntaryFilers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsReceived_55777f60-1623-4aff-a265-130d8f8000e0_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsReceived" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends received</link:label>
    <link:label id="lab_ifrs-full_DividendsReceived_label_en-US" xlink:label="lab_ifrs-full_DividendsReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends received</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsReceived"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsReceived" xlink:to="lab_ifrs-full_DividendsReceived" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities_7bb51454-bd8a-4f46-b9d6-f60ed9bf26c4_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loss on disposal of property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for gains (losses) on change in fair value of financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:to="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsTable_169dcd0f-452e-4e6a-b7f7-56df2a71ba5c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:to="lab_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RawMaterialsAndConsumablesUsed_ce63fd0c-057a-4120-a920-5e4862c116ed_verboseLabel_en-US" xlink:label="lab_ifrs-full_RawMaterialsAndConsumablesUsed" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Raw materials and consumables used</link:label>
    <link:label id="lab_ifrs-full_RawMaterialsAndConsumablesUsed_e7311e8e-ddba-4773-aefc-2769b43e1cec_terseLabel_en-US" xlink:label="lab_ifrs-full_RawMaterialsAndConsumablesUsed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Raw materials and consumables used</link:label>
    <link:label id="lab_ifrs-full_RawMaterialsAndConsumablesUsed_label_en-US" xlink:label="lab_ifrs-full_RawMaterialsAndConsumablesUsed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Raw materials and consumables used</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RawMaterialsAndConsumablesUsed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RawMaterialsAndConsumablesUsed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RawMaterialsAndConsumablesUsed" xlink:to="lab_ifrs-full_RawMaterialsAndConsumablesUsed" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument_19321040-2d85-4a99-a31f-fb6e62dfb45b_terseLabel_en-US" xlink:label="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average effective interest rate, liabilities for puttable financial instrument (%)</link:label>
    <link:label id="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument_label_en-US" xlink:label="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Effective Interest Rate, Liabilities For Puttable Financial Instrument</link:label>
    <link:label id="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument_documentation_en-US" xlink:label="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted Average Effective Interest Rate, Liabilities For Puttable Financial Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument" xlink:href="pre-20241231.xsd#pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument" xlink:to="lab_pre_WeightedAverageEffectiveInterestRateLiabilitiesForPuttableFinancialInstrument" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable_f93e7ac4-e22a-4e28-860d-5986e89193b9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for financial assets held for managing liquidity risk [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for financial assets held for managing liquidity risk [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities_c3992c17-429f-4eca-be3a-1294549fb607_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase through new leases, liabilities arising from financing activities</link:label>
    <link:label id="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase through new leases, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations_cf9b37bd-179e-4d8e-8944-33e16e51cdf0_verboseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">New and amendments to IFRS Accounting Standards in issue but not yet effective</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of expected impact of initial application of new standards or interpretations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:to="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCountry_68dfacc1-0d36-42d0-bc9b-c5dc99ac7ec8_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCountry" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Country</link:label>
    <link:label id="lab_dei_EntityAddressCountry_label_en-US" xlink:label="lab_dei_EntityAddressCountry" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Country</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCountry" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCountry"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCountry" xlink:to="lab_dei_EntityAddressCountry" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashOutflowForLeases_563b1684-898c-46c8-b3b5-b4230105e7cd_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_CashOutflowForLeases" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_CashOutflowForLeases_label_en-US" xlink:label="lab_ifrs-full_CashOutflowForLeases" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash outflow for leases</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashOutflowForLeases" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashOutflowForLeases"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashOutflowForLeases" xlink:to="lab_ifrs-full_CashOutflowForLeases" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_GeneralInformationAboutReportingEntityTable_449467fa-2c80-44f4-a3b4-344ab886ce5e_terseLabel_en-US" xlink:label="lab_pre_GeneralInformationAboutReportingEntityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General Information About Reporting Entity [Table]</link:label>
    <link:label id="lab_pre_GeneralInformationAboutReportingEntityTable_label_en-US" xlink:label="lab_pre_GeneralInformationAboutReportingEntityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Information About Reporting Entity [Table]</link:label>
    <link:label id="lab_pre_GeneralInformationAboutReportingEntityTable_documentation_en-US" xlink:label="lab_pre_GeneralInformationAboutReportingEntityTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">General Information About Reporting Entity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_GeneralInformationAboutReportingEntityTable" xlink:href="pre-20241231.xsd#pre_GeneralInformationAboutReportingEntityTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_GeneralInformationAboutReportingEntityTable" xlink:to="lab_pre_GeneralInformationAboutReportingEntityTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsMember_d0d38bcd-a195-4610-96ee-920f7c65873c_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: Amount due for settlement with 12 months shown under current liabilities</link:label>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than five years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanFiveYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanFiveYearsMember" xlink:to="lab_ifrs-full_LaterThanFiveYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_BeneficialInterestHeldAxis_e3aabeb1-8726-4dfc-9188-d2c81f943d7c_terseLabel_en-US" xlink:label="lab_pre_BeneficialInterestHeldAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Beneficial Interest Held [Axis]</link:label>
    <link:label id="lab_pre_BeneficialInterestHeldAxis_label_en-US" xlink:label="lab_pre_BeneficialInterestHeldAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Beneficial Interest Held [Axis]</link:label>
    <link:label id="lab_pre_BeneficialInterestHeldAxis_documentation_en-US" xlink:label="lab_pre_BeneficialInterestHeldAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Beneficial Interest Held</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_BeneficialInterestHeldAxis" xlink:href="pre-20241231.xsd#pre_BeneficialInterestHeldAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_BeneficialInterestHeldAxis" xlink:to="lab_pre_BeneficialInterestHeldAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities_aaa96b5f-a9b3-4b0b-abf5-d685e00154e4_terseLabel_en-US" xlink:label="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repayments of trade financing liabilities</link:label>
    <link:label id="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments Of Trade Financing Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Repayments Of Trade Financing Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_RepaymentsOfTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_6abc6c73-3e39-4638-9c4d-d6f955884fff_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: cash and cash equivalent balances acquired</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_c22af76c-9c8d-4655-a692-0e17d32cd487_verboseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_MovementInContractLiabilitiesAbstract_f7efbcb6-9f1d-4c96-8a55-98fb4c1bad11_terseLabel_en-US" xlink:label="lab_pre_MovementInContractLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Movement in contract liabilities</link:label>
    <link:label id="lab_pre_MovementInContractLiabilitiesAbstract_label_en-US" xlink:label="lab_pre_MovementInContractLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Movement In Contract Liabilities [Abstract]</link:label>
    <link:label id="lab_pre_MovementInContractLiabilitiesAbstract_documentation_en-US" xlink:label="lab_pre_MovementInContractLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Movement In Contract Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_MovementInContractLiabilitiesAbstract" xlink:href="pre-20241231.xsd#pre_MovementInContractLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_MovementInContractLiabilitiesAbstract" xlink:to="lab_pre_MovementInContractLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_169840c2-5d7c-4e28-9b41-bce2c6fba12d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_cee2e51f-5f87-4a91-8126-9b64a2330cfb_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentAnnualReport_098c4d76-c4b7-4056-84c1-284c657f80f3_terseLabel_en-US" xlink:label="lab_dei_DocumentAnnualReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Annual Report</link:label>
    <link:label id="lab_dei_DocumentAnnualReport_label_en-US" xlink:label="lab_dei_DocumentAnnualReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Annual Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentAnnualReport" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentAnnualReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentAnnualReport" xlink:to="lab_dei_DocumentAnnualReport" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExercisePriceOtherEquityInstrumentsGranted_8e878c30-789b-439a-8097-95c07e7de183_terseLabel_en-US" xlink:label="lab_pre_ExercisePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercise price (in US dollar per share)</link:label>
    <link:label id="lab_pre_ExercisePriceOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_ExercisePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercise Price, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExercisePriceOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_ExercisePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Exercise Price, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExercisePriceOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_ExercisePriceOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExercisePriceOtherEquityInstrumentsGranted" xlink:to="lab_pre_ExercisePriceOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsAbstract_3a32f9d8-19a4-4e7a-96f7-becdfb3ebf53_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="lab_ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod_659205d7-e513-47de-9c22-c5c69dbecc02_terseLabel_en-US" xlink:label="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Of Investments In Associates Accounted For Using Equity Method</link:label>
    <link:label id="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Of Investments In Associates Accounted For Using Equity Method</link:label>
    <link:label id="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod_documentation_en-US" xlink:label="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value Of Investments In Associates Accounted For Using Equity Method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:href="pre-20241231.xsd#pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:to="lab_pre_FairValueOfInvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets_125b4949-964c-4ff9-b446-7dc36842ffeb_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Adjustments for gains (losses) on change in fair value of financial assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for gains (losses) on change in fair value of financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets" xlink:to="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InventoryWritedown2011_a74818f9-201e-471b-9e50-68476880c4b2_terseLabel_en-US" xlink:label="lab_ifrs-full_InventoryWritedown2011" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory write-down</link:label>
    <link:label id="lab_ifrs-full_InventoryWritedown2011_label_en-US" xlink:label="lab_ifrs-full_InventoryWritedown2011" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory write-down</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InventoryWritedown2011" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InventoryWritedown2011"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InventoryWritedown2011" xlink:to="lab_ifrs-full_InventoryWritedown2011" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_8408c264-96ea-413f-af99-5e753cceba07_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsAxis_2642b8f7-5f9f-4eca-b36a-cfb231dc4d15_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment consolidation items [axis]</link:label>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsAxis_label_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment consolidation items [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentConsolidationItemsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentConsolidationItemsAxis" xlink:to="lab_ifrs-full_SegmentConsolidationItemsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory_7a330b72-b809-4947-92d1-6e9c7b539c80_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of interests in equity accounted investees</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interests in associates [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestsInAssociatesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory_aa0f1a27-bb8a-454a-a8cb-d9b5c2448986_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other non-current assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other non-current assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_d47ff9a4-ea25-42ed-a0bf-0ea62360c3f2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_21eb1c4a-d9ec-41fa-97f2-972a29b832cc_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Contract liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of revenue from contracts with customers [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_GoodsTransferredAtAPointInTimeMember_0e80c45e-ac27-4746-9866-69694eccbb99_terseLabel_en-US" xlink:label="lab_pre_GoodsTransferredAtAPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goods Transferred at a Point in Time [Member]</link:label>
    <link:label id="lab_pre_GoodsTransferredAtAPointInTimeMember_label_en-US" xlink:label="lab_pre_GoodsTransferredAtAPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goods Transferred at a Point in Time [Member]</link:label>
    <link:label id="lab_pre_GoodsTransferredAtAPointInTimeMember_documentation_en-US" xlink:label="lab_pre_GoodsTransferredAtAPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Goods Transferred at a Point in Time</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_GoodsTransferredAtAPointInTimeMember" xlink:href="pre-20241231.xsd#pre_GoodsTransferredAtAPointInTimeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_GoodsTransferredAtAPointInTimeMember" xlink:to="lab_pre_GoodsTransferredAtAPointInTimeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems_5ceeefd5-2820-4aed-a154-58c15f96ec1a_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems_label_en-US" xlink:label="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]</link:label>
    <link:label id="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems_documentation_en-US" xlink:label="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:href="pre-20241231.xsd#pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:to="lab_pre_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ConsumerHealthMember_cd07dafe-93e6-44cf-9964-e1e5808c657c_terseLabel_en-US" xlink:label="lab_pre_ConsumerHealthMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumer Health [Member]</link:label>
    <link:label id="lab_pre_ConsumerHealthMember_label_en-US" xlink:label="lab_pre_ConsumerHealthMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Health [Member]</link:label>
    <link:label id="lab_pre_ConsumerHealthMember_documentation_en-US" xlink:label="lab_pre_ConsumerHealthMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consumer Health</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ConsumerHealthMember" xlink:href="pre-20241231.xsd#pre_ConsumerHealthMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ConsumerHealthMember" xlink:to="lab_pre_ConsumerHealthMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_a0aa4e5a-3c68-48aa-a3ff-17041347e4d6_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OtherFinanceCostMember_7c247ad8-7079-4b12-93aa-7be265a890fb_terseLabel_en-US" xlink:label="lab_pre_OtherFinanceCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other finance cost</link:label>
    <link:label id="lab_pre_OtherFinanceCostMember_label_en-US" xlink:label="lab_pre_OtherFinanceCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Finance Cost [Member]</link:label>
    <link:label id="lab_pre_OtherFinanceCostMember_documentation_en-US" xlink:label="lab_pre_OtherFinanceCostMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Finance Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OtherFinanceCostMember" xlink:href="pre-20241231.xsd#pre_OtherFinanceCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OtherFinanceCostMember" xlink:to="lab_pre_OtherFinanceCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock_1eb5793c-b10f-4510-bff8-c4fe562fadf4_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of information about Level 3 fair value measurements</link:label>
    <link:label id="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilities [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:to="lab_pre_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_70883539-da5a-4471-b95a-fcadb0f79557_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated impairment of goodwill</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for impairment of non-financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_31de140b-0b73-42b1-ab4d-a821da8d8401_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment Information</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of entity's operating segments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ActGenomicsCo.Ltd.Member_7926ae57-24df-4c4e-83a1-fe08404fc464_terseLabel_en-US" xlink:label="lab_pre_ActGenomicsCo.Ltd.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Act Genomics Co.Ltd. [Member]</link:label>
    <link:label id="lab_pre_ActGenomicsCo.Ltd.Member_label_en-US" xlink:label="lab_pre_ActGenomicsCo.Ltd.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Act Genomics Co.Ltd. [Member]</link:label>
    <link:label id="lab_pre_ActGenomicsCo.Ltd.Member_documentation_en-US" xlink:label="lab_pre_ActGenomicsCo.Ltd.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Act Genomics Co.Ltd.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ActGenomicsCo.Ltd.Member" xlink:href="pre-20241231.xsd#pre_ActGenomicsCo.Ltd.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ActGenomicsCo.Ltd.Member" xlink:to="lab_pre_ActGenomicsCo.Ltd.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_GeneralInformationAboutReportingEntityLineItems_36f3fef9-13b1-4a59-84ea-7520f29ba00e_terseLabel_en-US" xlink:label="lab_pre_GeneralInformationAboutReportingEntityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General Information About Reporting Entity [line items]</link:label>
    <link:label id="lab_pre_GeneralInformationAboutReportingEntityLineItems_label_en-US" xlink:label="lab_pre_GeneralInformationAboutReportingEntityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Information About Reporting Entity [Line Items]</link:label>
    <link:label id="lab_pre_GeneralInformationAboutReportingEntityLineItems_documentation_en-US" xlink:label="lab_pre_GeneralInformationAboutReportingEntityLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">General Information About Reporting Entity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_GeneralInformationAboutReportingEntityLineItems" xlink:href="pre-20241231.xsd#pre_GeneralInformationAboutReportingEntityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_GeneralInformationAboutReportingEntityLineItems" xlink:to="lab_pre_GeneralInformationAboutReportingEntityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OxsedLimitedMember_7f9c7d96-d0d8-4ca7-b682-dae7c4ac7f63_verboseLabel_en-US" xlink:label="lab_pre_OxsedLimitedMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Oxsed Limited</link:label>
    <link:label id="lab_pre_OxsedLimitedMember_label_en-US" xlink:label="lab_pre_OxsedLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Oxsed Limited [Member]</link:label>
    <link:label id="lab_pre_OxsedLimitedMember_documentation_en-US" xlink:label="lab_pre_OxsedLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Oxsed Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OxsedLimitedMember" xlink:href="pre-20241231.xsd#pre_OxsedLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OxsedLimitedMember" xlink:to="lab_pre_OxsedLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront_21183a9f-7e61-4078-853b-de9d92e5c664_terseLabel_en-US" xlink:label="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consideration refundable period from the date of delivery, services upfront</link:label>
    <link:label id="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront_label_en-US" xlink:label="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consideration Refundable Period From Date Of Delivery Services Upfront</link:label>
    <link:label id="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront_documentation_en-US" xlink:label="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consideration Refundable Period From Date Of Delivery Services Upfront</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront" xlink:href="pre-20241231.xsd#pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront" xlink:to="lab_pre_ConsiderationRefundablePeriodFromDateOfDeliveryServicesUpfront" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract_5def5c1f-149f-4690-9f65-3e038499bb3d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousOtherReservesMember_63865394-3455-4642-b684-f0e699e613ed_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherReservesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Miscellaneous other reserves [member]</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousOtherReservesMember_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherReservesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous other reserves [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherReservesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousOtherReservesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousOtherReservesMember" xlink:to="lab_ifrs-full_MiscellaneousOtherReservesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_1c02b66d-e870-4266-8fcd-ba1ffd46a1ed_negatedLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax effect of revenues exempt from taxation</link:label>
    <link:label id="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_label_en-US" xlink:label="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect of revenues exempt from taxation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:to="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_OptionSchemesMember_175ff9ae-628a-49c3-b1b4-e2c30df2fec3_terseLabel_en-US" xlink:label="lab_pre_OptionSchemesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share options</link:label>
    <link:label id="lab_pre_OptionSchemesMember_label_en-US" xlink:label="lab_pre_OptionSchemesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Option Schemes [Member]</link:label>
    <link:label id="lab_pre_OptionSchemesMember_documentation_en-US" xlink:label="lab_pre_OptionSchemesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Option Schemes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_OptionSchemesMember" xlink:href="pre-20241231.xsd#pre_OptionSchemesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_OptionSchemesMember" xlink:to="lab_pre_OptionSchemesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherNoncurrentAssets_ccb24346-972d-4d91-92ba-a610c77b9810_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_OtherNoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherNoncurrentAssets" xlink:to="lab_ifrs-full_OtherNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepositsAndOtherReceivablesMember_068844f4-ec36-44b8-a9b7-6e9a91439c09_terseLabel_en-US" xlink:label="lab_pre_DepositsAndOtherReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits And Other Receivables [Member]</link:label>
    <link:label id="lab_pre_DepositsAndOtherReceivablesMember_label_en-US" xlink:label="lab_pre_DepositsAndOtherReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits And Other Receivables [Member]</link:label>
    <link:label id="lab_pre_DepositsAndOtherReceivablesMember_documentation_en-US" xlink:label="lab_pre_DepositsAndOtherReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposits And Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepositsAndOtherReceivablesMember" xlink:href="pre-20241231.xsd#pre_DepositsAndOtherReceivablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepositsAndOtherReceivablesMember" xlink:to="lab_pre_DepositsAndOtherReceivablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AggregatePrice_6f321a7f-7275-4c05-a233-b3368b1f88a7_terseLabel_en-US" xlink:label="lab_pre_AggregatePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate price</link:label>
    <link:label id="lab_pre_AggregatePrice_label_en-US" xlink:label="lab_pre_AggregatePrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Price</link:label>
    <link:label id="lab_pre_AggregatePrice_documentation_en-US" xlink:label="lab_pre_AggregatePrice" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aggregate Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AggregatePrice" xlink:href="pre-20241231.xsd#pre_AggregatePrice"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AggregatePrice" xlink:to="lab_pre_AggregatePrice" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfExpensesByNatureTable_80d4217f-a732-4742-a4fa-8bae90c9dbdc_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfExpensesByNatureTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Expenses by Nature [Table]</link:label>
    <link:label id="lab_pre_ScheduleOfExpensesByNatureTable_label_en-US" xlink:label="lab_pre_ScheduleOfExpensesByNatureTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfExpensesByNatureTable</link:label>
    <link:label id="lab_pre_ScheduleOfExpensesByNatureTable_documentation_en-US" xlink:label="lab_pre_ScheduleOfExpensesByNatureTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfExpensesByNatureTable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfExpensesByNatureTable" xlink:href="pre-20241231.xsd#pre_ScheduleOfExpensesByNatureTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfExpensesByNatureTable" xlink:to="lab_pre_ScheduleOfExpensesByNatureTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToAbstract_6a0eb491-bc5e-478b-962f-fe1eb9ffb758_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to [abstract]</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToAbstract_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToAbstract" xlink:to="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpensesMember_8e8053d6-ab50-4cad-a054-a0c664dd82c7_terseLabel_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpensesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses [Member]</link:label>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpensesMember_label_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpensesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses [Member]</link:label>
    <link:label id="lab_pre_AdministrativeAndOtherOperatingExpensesMember_documentation_en-US" xlink:label="lab_pre_AdministrativeAndOtherOperatingExpensesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Administrative And Other Operating Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdministrativeAndOtherOperatingExpensesMember" xlink:href="pre-20241231.xsd#pre_AdministrativeAndOtherOperatingExpensesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdministrativeAndOtherOperatingExpensesMember" xlink:to="lab_pre_AdministrativeAndOtherOperatingExpensesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContinuingOperationsMember_453dc234-0555-41bf-96a5-b5a7d1515292_terseLabel_en-US" xlink:label="lab_ifrs-full_ContinuingOperationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Continuing operations, unless line item indicates otherwise [member]</link:label>
    <link:label id="lab_ifrs-full_ContinuingOperationsMember_label_en-US" xlink:label="lab_ifrs-full_ContinuingOperationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Continuing operations, unless line item indicates otherwise [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContinuingOperationsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContinuingOperationsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContinuingOperationsMember" xlink:to="lab_ifrs-full_ContinuingOperationsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DiscountedCashFlowMember_9fd414aa-c53f-4437-9a81-66223c6df3fe_terseLabel_en-US" xlink:label="lab_ifrs-full_DiscountedCashFlowMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discounted cash flow</link:label>
    <link:label id="lab_ifrs-full_DiscountedCashFlowMember_label_en-US" xlink:label="lab_ifrs-full_DiscountedCashFlowMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discounted cash flow [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DiscountedCashFlowMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DiscountedCashFlowMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DiscountedCashFlowMember" xlink:to="lab_ifrs-full_DiscountedCashFlowMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IssueOfEquityReverseStockSplit_f1a2f68b-950b-4a03-aa48-31861ff2ac6c_terseLabel_en-US" xlink:label="lab_pre_IssueOfEquityReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issue Of Equity, Reverse Stock Split</link:label>
    <link:label id="lab_pre_IssueOfEquityReverseStockSplit_a03a01a7-c3a1-4478-a496-8d2af11a7ff6_verboseLabel_en-US" xlink:label="lab_pre_IssueOfEquityReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Issue Of Equity, Reverse Stock Split</link:label>
    <link:label id="lab_pre_IssueOfEquityReverseStockSplit_label_en-US" xlink:label="lab_pre_IssueOfEquityReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issue Of Equity, Reverse Stock Split</link:label>
    <link:label id="lab_pre_IssueOfEquityReverseStockSplit_documentation_en-US" xlink:label="lab_pre_IssueOfEquityReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Issuance of shares for reverse stock split</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IssueOfEquityReverseStockSplit" xlink:href="pre-20241231.xsd#pre_IssueOfEquityReverseStockSplit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IssueOfEquityReverseStockSplit" xlink:to="lab_pre_IssueOfEquityReverseStockSplit" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_03f48791-e2f2-41b3-b138-a28ef5db38cc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value measurements and valuation processes</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain_38fd3fb7-6bc2-4301-baba-091db4e2330c_terseLabel_en-US" xlink:label="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of Individual [Domain]</link:label>
    <link:label id="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain_label_en-US" xlink:label="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title and Position [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInJointVenture_7f49934b-4ef1-4cda-bad8-a7a5c22fe7eb_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in joint venture (%)</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInJointVenture_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in joint venture</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInJointVenture"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted_9b469a3a-9636-464c-a072-abb042e4026a_terseLabel_en-US" xlink:label="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share price (in US dollar per share)</link:label>
    <link:label id="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Share Price, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted Average Share Price, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted" xlink:to="lab_pre_WeightedAverageSharePriceOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_47d1785b-0cbf-46c8-9db7-f8e93e22eb72_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_ff235db6-b942-492d-86dd-39a98c91e8f1_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent" xlink:to="lab_dei_EntityInteractiveDataCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_a657ff90-150f-455b-8d81-a049da53f3e2_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in subsidiary</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_label_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in subsidiary</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfVotingPowerHeldInSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:to="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfValuationTechniquesTableTextBlock_a6bff347-259f-4dd9-a39e-f11fd429814a_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfValuationTechniquesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of valuation techniques</link:label>
    <link:label id="lab_pre_DisclosureOfValuationTechniquesTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfValuationTechniquesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Valuation Techniques [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfValuationTechniquesTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfValuationTechniquesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Valuation Techniques</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfValuationTechniquesTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfValuationTechniquesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfValuationTechniquesTableTextBlock" xlink:to="lab_pre_DisclosureOfValuationTechniquesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing_31dba47c-9d0b-461d-a8d9-fbb236faea31_negatedLabel_en-US" xlink:label="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reclassification Of Preference Share Liabilities To Share Capital And Share Premium Upon Listing</link:label>
    <link:label id="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing_label_en-US" xlink:label="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification Of Preference Share Liabilities To Share Capital And Share Premium Upon Listing</link:label>
    <link:label id="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing_documentation_en-US" xlink:label="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reclassification Of Preference Share Liabilities To Share Capital And Share Premium Upon Listing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing" xlink:href="pre-20241231.xsd#pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing" xlink:to="lab_pre_ReclassificationOfPreferenceShareLiabilitiesToShareCapitalAndSharePremiumUponListing" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PriceOfShare_4219f58b-1b4a-44dc-9491-a73f938bce73_terseLabel_en-US" xlink:label="lab_pre_PriceOfShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share price (in $ per share)</link:label>
    <link:label id="lab_pre_PriceOfShare_label_en-US" xlink:label="lab_pre_PriceOfShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Price Of Share</link:label>
    <link:label id="lab_pre_PriceOfShare_documentation_en-US" xlink:label="lab_pre_PriceOfShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Price Of Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PriceOfShare" xlink:href="pre-20241231.xsd#pre_PriceOfShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PriceOfShare" xlink:to="lab_pre_PriceOfShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis_ada042ae-4271-4303-ab53-5c39527c0541_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [axis]</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_38d312d8-f0db-4d53-9d3f-288e75dd395f_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of estimated useful lives of intangible assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_e762a594-9e8e-4295-9a85-ac07c9588fd1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of intangible assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentWarrantLiability_452a5247-7a0d-4e9d-8e99-d16daf6ce252_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentWarrantLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount due to a related company</link:label>
    <link:label id="lab_ifrs-full_NoncurrentWarrantLiability_label_en-US" xlink:label="lab_ifrs-full_NoncurrentWarrantLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current warrant liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentWarrantLiability" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentWarrantLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentWarrantLiability" xlink:to="lab_ifrs-full_NoncurrentWarrantLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_b6b0c864-6234-4f70-baa3-d839aad84322_terseLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_9aaac2fb-8fe2-47af-bb8b-f6b6e14838de_periodStartLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_76955cfd-7511-49c9-be59-6cf00b29bbfb_periodEndLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_cdbade77-8b3d-4fce-bde8-691540a6a700_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit_2313f56f-b24a-4f99-8ba9-4face0f0af8f_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment for reverse stock split (in shares)</link:label>
    <link:label id="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit_label_en-US" xlink:label="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Number Of Shares Reverse Stock Split</link:label>
    <link:label id="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Post Reverse Stock Split</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit" xlink:to="lab_pre_IncreaseDecreaseInNumberOfSharesReverseStockSplit" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockholdersEquityNoteNewShare_88038916-5ea7-4b67-9679-961ca8373181_terseLabel_en-US" xlink:label="lab_pre_StockholdersEquityNoteNewShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stockholders equity note, new share</link:label>
    <link:label id="lab_pre_StockholdersEquityNoteNewShare_label_en-US" xlink:label="lab_pre_StockholdersEquityNoteNewShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders Equity Note, New Share</link:label>
    <link:label id="lab_pre_StockholdersEquityNoteNewShare_documentation_en-US" xlink:label="lab_pre_StockholdersEquityNoteNewShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stockholders Equity Note, New Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockholdersEquityNoteNewShare" xlink:href="pre-20241231.xsd#pre_StockholdersEquityNoteNewShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockholdersEquityNoteNewShare" xlink:to="lab_pre_StockholdersEquityNoteNewShare" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DiscontinuedOperationsAbstract_816aade5-dfff-4ec4-b9c4-fd1603ca38e8_terseLabel_en-US" xlink:label="lab_pre_DiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discontinued Operations [Abstract]</link:label>
    <link:label id="lab_pre_DiscontinuedOperationsAbstract_label_en-US" xlink:label="lab_pre_DiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discontinued Operations [Abstract]</link:label>
    <link:label id="lab_pre_DiscontinuedOperationsAbstract_documentation_en-US" xlink:label="lab_pre_DiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Discontinued Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DiscontinuedOperationsAbstract" xlink:href="pre-20241231.xsd#pre_DiscontinuedOperationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DiscontinuedOperationsAbstract" xlink:to="lab_pre_DiscontinuedOperationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_6779f261-0e93-4fa6-aea5-ad502540616e_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_UseOfEstimatesAbstract_17bffd5c-1b17-47fb-8e10-b5bf12dbb1a6_terseLabel_en-US" xlink:label="lab_pre_UseOfEstimatesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Use Of Estimates [Abstract]</link:label>
    <link:label id="lab_pre_UseOfEstimatesAbstract_label_en-US" xlink:label="lab_pre_UseOfEstimatesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Use of Estimates [Abstract]</link:label>
    <link:label id="lab_pre_UseOfEstimatesAbstract_documentation_en-US" xlink:label="lab_pre_UseOfEstimatesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Use Of Estimates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_UseOfEstimatesAbstract" xlink:href="pre-20241231.xsd#pre_UseOfEstimatesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_UseOfEstimatesAbstract" xlink:to="lab_pre_UseOfEstimatesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019_5cdb8f14-3f15-4dbc-92d9-a00d2ffe528d_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options exercised (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options exercised in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalAxis_a3fc6949-d984-4d17-8dd8-83f0c425bf59_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of share capital [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of share capital [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:to="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_d0b5d871-713f-4888-8d2b-c145dce60d8c_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities arising from financing activities [axis]</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities arising from financing activities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:to="lab_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember_2baeb528-7816-4bd0-b180-2ba1787d162d_terseLabel_en-US" xlink:label="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Charges Writeoff Of Prepayment [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember_label_en-US" xlink:label="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Charges Writeoff Of Prepayment [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember_documentation_en-US" xlink:label="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Charges Writeoff Of Prepayment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestructuringChargesWriteoffOfPrepaymentMember" xlink:href="pre-20241231.xsd#pre_RestructuringChargesWriteoffOfPrepaymentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestructuringChargesWriteoffOfPrepaymentMember" xlink:to="lab_pre_RestructuringChargesWriteoffOfPrepaymentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations_3ce09a72-fb44-432f-9fbf-5a044ebefaf1_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">New and amended IFRS Accounting Standards that are effective for the current year</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of initial application of standards or interpretations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations" xlink:to="lab_ifrs-full_DescriptionOfInitialApplicationOfStandardsOrInterpretations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentLiabilitiesAbstract_232bbcc2-19a1-4e1f-81ad-e4aa0b430f95_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_7d880fe5-c96f-4137-bdc2-184be6f369a0_terseLabel_en-US" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:label id="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_label_en-US" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IM8LimitedMember_a27d3f5a-4645-4dcc-9855-25ecb03007f7_terseLabel_en-US" xlink:label="lab_pre_IM8LimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IM8 Limited [Member]</link:label>
    <link:label id="lab_pre_IM8LimitedMember_label_en-US" xlink:label="lab_pre_IM8LimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IM8 Limited [Member]</link:label>
    <link:label id="lab_pre_IM8LimitedMember_documentation_en-US" xlink:label="lab_pre_IM8LimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IM8 Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IM8LimitedMember" xlink:href="pre-20241231.xsd#pre_IM8LimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IM8LimitedMember" xlink:to="lab_pre_IM8LimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssets_f843b448-a618-479f-b840-81c0d682bac7_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_b2a66548-294a-49f5-b79c-e0a09dedab0b_periodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Financial assets at beginning of period</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_f6e02679-a0f3-4098-a477-4bee62d799be_periodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Financial assets at end of period</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_1d2a0033-9df5-43fd-9c3b-1ddb28131cf7_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Allowance account for credit losses of financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_f894c6b6-341f-4f4c-afc9-d02de0e0b6a8_negatedPeriodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_bdf21863-9202-44c0-9b3f-bf7c37d4cf37_negatedPeriodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_label_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssets" xlink:to="lab_ifrs-full_FinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfLeasesExplanatory_b843ca02-3030-423b-b415-d4c2537da4a6_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfLeasesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of leases [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfLeasesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfLeasesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable_b840b96f-bd08-4a64-a389-5f2b8f1ee3ad_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of liabilities arising from puttable financial instrument [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable_label_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reconciliation Of Liabilities Arising From Puttable Financial Instrument [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable_documentation_en-US" xlink:label="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Reconciliation Of Liabilities Arising From Puttable Financial Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable" xlink:href="pre-20241231.xsd#pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable" xlink:to="lab_pre_DisclosureOfReconciliationOfLiabilitiesArisingFromPuttableFinancialInstrumentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory_2751bc28-5928-4adb-9091-faa7bf5ae053_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of expenses</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of attribution of expenses by nature to their function [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_StockholdersEquityNoteStockSplitSharesConverted_4d4bf435-a156-4514-b5d5-b56309915813_terseLabel_en-US" xlink:label="lab_pre_StockholdersEquityNoteStockSplitSharesConverted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stockholders equity note, stock split, shares converted</link:label>
    <link:label id="lab_pre_StockholdersEquityNoteStockSplitSharesConverted_label_en-US" xlink:label="lab_pre_StockholdersEquityNoteStockSplitSharesConverted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders Equity Note, Stock Split, Shares Converted</link:label>
    <link:label id="lab_pre_StockholdersEquityNoteStockSplitSharesConverted_documentation_en-US" xlink:label="lab_pre_StockholdersEquityNoteStockSplitSharesConverted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stockholders Equity Note, Stock Split, Shares Converted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_StockholdersEquityNoteStockSplitSharesConverted" xlink:href="pre-20241231.xsd#pre_StockholdersEquityNoteStockSplitSharesConverted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_StockholdersEquityNoteStockSplitSharesConverted" xlink:to="lab_pre_StockholdersEquityNoteStockSplitSharesConverted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuedCapital_362c8bce-2494-4467-ba29-f5891949bb83_terseLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issued capital</link:label>
    <link:label id="lab_ifrs-full_IssuedCapital_63c7ad51-85c1-4c46-924c-70f1e8bc62e5_periodStartLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapital" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at the beginning</link:label>
    <link:label id="lab_ifrs-full_IssuedCapital_18e55173-b63e-40b9-ae37-26256eb44263_periodEndLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapital" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at the end</link:label>
    <link:label id="lab_ifrs-full_IssuedCapital_abd83a6e-0062-4283-8f46-4fd0cb612ce7_verboseLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapital" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Issued capital</link:label>
    <link:label id="lab_ifrs-full_IssuedCapital_label_en-US" xlink:label="lab_ifrs-full_IssuedCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapital" xlink:to="lab_ifrs-full_IssuedCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract_a83cc5b9-ed79-40c9-802a-4384c1e8ed9d_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to [abstract]</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:to="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FPAInvestorsMember_ae54813e-ee11-4a65-b8f9-bb6045230404_terseLabel_en-US" xlink:label="lab_pre_FPAInvestorsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FPA Investors</link:label>
    <link:label id="lab_pre_FPAInvestorsMember_label_en-US" xlink:label="lab_pre_FPAInvestorsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FPA Investors [Member]</link:label>
    <link:label id="lab_pre_FPAInvestorsMember_documentation_en-US" xlink:label="lab_pre_FPAInvestorsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">FPA Investors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FPAInvestorsMember" xlink:href="pre-20241231.xsd#pre_FPAInvestorsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FPAInvestorsMember" xlink:to="lab_pre_FPAInvestorsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_6e29cdb8-9607-4aa9-8533-b4faf33f3039_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Loss)/earnings for the purpose of basic (loss)/earnings per share being net loss attributable to equity shareholders of the Company, from the continuing operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from continuing operations attributable to ordinary equity holders of parent entity, used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:to="lab_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed_265e18b3-9512-417a-8074-b11a53ccad72_terseLabel_en-US" xlink:label="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions to right-of-use assets</link:label>
    <link:label id="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed_label_en-US" xlink:label="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense Relating To Short Term Leases Or Leases Of Low Value Assets For Which Recognition Exemption Has Been Used</link:label>
    <link:label id="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed_documentation_en-US" xlink:label="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expense Relating To Short Term Leases Or Leases Of Low Value Assets For Which Recognition Exemption Has Been Used</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:href="pre-20241231.xsd#pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:to="lab_pre_ExpenseRelatingToShortTermLeasesOrLeasesOfLowValueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NasdaqStockMarketMember_349fc71f-fb76-4dcc-abd0-dc125c65947a_terseLabel_en-US" xlink:label="lab_pre_NasdaqStockMarketMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NASDAQ Stock Market</link:label>
    <link:label id="lab_pre_NasdaqStockMarketMember_label_en-US" xlink:label="lab_pre_NasdaqStockMarketMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nasdaq Stock Market [Member]</link:label>
    <link:label id="lab_pre_NasdaqStockMarketMember_documentation_en-US" xlink:label="lab_pre_NasdaqStockMarketMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Nasdaq Stock Market</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NasdaqStockMarketMember" xlink:href="pre-20241231.xsd#pre_NasdaqStockMarketMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NasdaqStockMarketMember" xlink:to="lab_pre_NasdaqStockMarketMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_BreakageRevenueFromUnreturnedKits_e40f55be-9087-47f6-a8bb-3fb2a199e940_terseLabel_en-US" xlink:label="lab_pre_BreakageRevenueFromUnreturnedKits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Breakage revenue from unreturned kits</link:label>
    <link:label id="lab_pre_BreakageRevenueFromUnreturnedKits_label_en-US" xlink:label="lab_pre_BreakageRevenueFromUnreturnedKits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Breakage Revenue From Unreturned Kits</link:label>
    <link:label id="lab_pre_BreakageRevenueFromUnreturnedKits_documentation_en-US" xlink:label="lab_pre_BreakageRevenueFromUnreturnedKits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Breakage Revenue From Unreturned Kits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_BreakageRevenueFromUnreturnedKits" xlink:href="pre-20241231.xsd#pre_BreakageRevenueFromUnreturnedKits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_BreakageRevenueFromUnreturnedKits" xlink:to="lab_pre_BreakageRevenueFromUnreturnedKits" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParentMember_bb0af31b-f19d-424a-8f13-dc109a938140_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParentMember_label_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity attributable to owners of parent [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="lab_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IM8USLLCMember_723b3a42-1ad1-4485-90c9-b2389a0bca08_terseLabel_en-US" xlink:label="lab_pre_IM8USLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IM8 US LLC [Member]</link:label>
    <link:label id="lab_pre_IM8USLLCMember_label_en-US" xlink:label="lab_pre_IM8USLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IM8 US LLC [Member]</link:label>
    <link:label id="lab_pre_IM8USLLCMember_documentation_en-US" xlink:label="lab_pre_IM8USLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IM8 US LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IM8USLLCMember" xlink:href="pre-20241231.xsd#pre_IM8USLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IM8USLLCMember" xlink:to="lab_pre_IM8USLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustedWeightedAverageShares_58e8fd49-2b90-4ee0-9663-e26f41862480_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustedWeightedAverageShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted-average number of ordinary shares for the purposes of diluted (loss)/earnings per share (in shares)</link:label>
    <link:label id="lab_ifrs-full_AdjustedWeightedAverageShares_label_en-US" xlink:label="lab_ifrs-full_AdjustedWeightedAverageShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average number of ordinary shares used in calculating diluted earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustedWeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustedWeightedAverageShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustedWeightedAverageShares" xlink:to="lab_ifrs-full_AdjustedWeightedAverageShares" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted_50fc37ea-6b21-47d6-a744-d4ad6c2c7dfc_terseLabel_en-US" xlink:label="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected Volatility, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected Volatility, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expected Volatility, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExpectedVolatilityOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_ExpectedVolatilityOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExpectedVolatilityOtherEquityInstrumentsGranted" xlink:to="lab_pre_ExpectedVolatilityOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AuditorFirmId_21aa00c6-df05-4204-bdd2-64af448c73cb_terseLabel_en-US" xlink:label="lab_dei_AuditorFirmId" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Firm ID</link:label>
    <link:label id="lab_dei_AuditorFirmId_label_en-US" xlink:label="lab_dei_AuditorFirmId" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Firm ID</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorFirmId" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorFirmId"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorFirmId" xlink:to="lab_dei_AuditorFirmId" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PlanName1Domain_89da3dc6-1552-41a7-9de4-4d4805335b59_terseLabel_en-US" xlink:label="lab_pre_PlanName1Domain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:label id="lab_pre_PlanName1Domain_label_en-US" xlink:label="lab_pre_PlanName1Domain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name1 [Domain]</link:label>
    <link:label id="lab_pre_PlanName1Domain_documentation_en-US" xlink:label="lab_pre_PlanName1Domain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Plan Name1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PlanName1Domain" xlink:href="pre-20241231.xsd#pre_PlanName1Domain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PlanName1Domain" xlink:to="lab_pre_PlanName1Domain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Assets_ddd03000-ff2b-447c-b62a-8e6c1f6438c3_totalLabel_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_ifrs-full_Assets_label_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Assets" xlink:to="lab_ifrs-full_Assets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotLaterThanOneYearMember_e63ac241-4903-48db-a33d-a9e089edb419_terseLabel_en-US" xlink:label="lab_ifrs-full_NotLaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Not later than one year [member]</link:label>
    <link:label id="lab_ifrs-full_NotLaterThanOneYearMember_label_en-US" xlink:label="lab_ifrs-full_NotLaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Not later than one year [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotLaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotLaterThanOneYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotLaterThanOneYearMember" xlink:to="lab_ifrs-full_NotLaterThanOneYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfWarrantyLiabilitiesTable_e0ef3afe-3e4b-4f81-99f3-6a3c4df693ae_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfWarrantyLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Warranty Liabilities [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfWarrantyLiabilitiesTable_label_en-US" xlink:label="lab_pre_DisclosureOfWarrantyLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Warranty Liabilities [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfWarrantyLiabilitiesTable_documentation_en-US" xlink:label="lab_pre_DisclosureOfWarrantyLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Warranty Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfWarrantyLiabilitiesTable" xlink:href="pre-20241231.xsd#pre_DisclosureOfWarrantyLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfWarrantyLiabilitiesTable" xlink:to="lab_pre_DisclosureOfWarrantyLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_43f39baa-7b67-43c3-a8b1-b5fb44c72022_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expense from equity-settled share-based payment transactions</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_6bc5d012-0b6e-45e8-98e5-400e01e2c59b_verboseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equity-settled share-based payment expenses</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_label_en-US" xlink:label="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense from equity-settled share-based payment transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:to="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted_4beb009a-5485-44a0-a5f7-bdb4c0e94a96_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected dividend as percentage, share options granted</link:label>
    <link:label id="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected dividend as percentage, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:to="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems_bcc00473-3ef7-4bd3-bf28-c5ab044a63b3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate_82d07d51-43dd-4a15-a1cd-b9427e8755a4_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Contract liabilities recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract liabilities recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_ContractLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CapitalReserveMember_b99e11e3-5ad3-45b9-809b-c48101c9b060_terseLabel_en-US" xlink:label="lab_ifrs-full_CapitalReserveMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital reserve [member]</link:label>
    <link:label id="lab_ifrs-full_CapitalReserveMember_label_en-US" xlink:label="lab_ifrs-full_CapitalReserveMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital reserve [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CapitalReserveMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CapitalReserveMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CapitalReserveMember" xlink:to="lab_ifrs-full_CapitalReserveMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_KMPGMember_f8942caf-2cd9-479f-b4ee-4a70e205c2f7_terseLabel_en-US" xlink:label="lab_pre_KMPGMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">KMPG</link:label>
    <link:label id="lab_pre_KMPGMember_label_en-US" xlink:label="lab_pre_KMPGMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">KMPG [Member]</link:label>
    <link:label id="lab_pre_KMPGMember_documentation_en-US" xlink:label="lab_pre_KMPGMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">KMPG</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_KMPGMember" xlink:href="pre-20241231.xsd#pre_KMPGMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_KMPGMember" xlink:to="lab_pre_KMPGMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_0bac520b-d4b4-4d84-bb41-a723523430bf_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_b455dce0-6f48-488a-b7eb-40320adc5574_negatedLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxAssets" xlink:to="lab_ifrs-full_DeferredTaxAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsDomain_06cbe772-74c3-4c47-a88f-5137d9e872dc_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WebsiteAndMobileAppsMember_b1163eed-0dca-45a4-9664-2308fb4324bf_terseLabel_en-US" xlink:label="lab_pre_WebsiteAndMobileAppsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Patent</link:label>
    <link:label id="lab_pre_WebsiteAndMobileAppsMember_label_en-US" xlink:label="lab_pre_WebsiteAndMobileAppsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Website And Mobile Apps [Member]</link:label>
    <link:label id="lab_pre_WebsiteAndMobileAppsMember_documentation_en-US" xlink:label="lab_pre_WebsiteAndMobileAppsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Website And Mobile Apps</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WebsiteAndMobileAppsMember" xlink:href="pre-20241231.xsd#pre_WebsiteAndMobileAppsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WebsiteAndMobileAppsMember" xlink:to="lab_pre_WebsiteAndMobileAppsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_c7fb3eb0-e5e3-4232-b668-8697011b3d42_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_64c425b9-a7dd-4e97-be65-64e333a29f23_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:to="lab_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_d6363649-80d4-4770-95dd-037802ed3cae_negatedLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, goodwill</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_5460bb06-98f2-4205-812d-2ac50617a25a_terseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, goodwill</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:to="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_8e8ea409-cd75-4051-b598-076434e0e3dd_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, category [member]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LiabilitiesUndiscountedCashFlows_00034d25-1664-4b8e-91ff-3e1b7d8be923_totalLabel_en-US" xlink:label="lab_pre_LiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Liabilities, undiscounted cash flows</link:label>
    <link:label id="lab_pre_LiabilitiesUndiscountedCashFlows_label_en-US" xlink:label="lab_pre_LiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Undiscounted Cash Flows</link:label>
    <link:label id="lab_pre_LiabilitiesUndiscountedCashFlows_documentation_en-US" xlink:label="lab_pre_LiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Liabilities, Undiscounted Cash Flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LiabilitiesUndiscountedCashFlows" xlink:href="pre-20241231.xsd#pre_LiabilitiesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LiabilitiesUndiscountedCashFlows" xlink:to="lab_pre_LiabilitiesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_1e0823d2-a6c9-489f-a22f-9102cd69f2c0_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Purchase of interests in investments accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of interests in investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WriteOffMember_0c3da89d-6617-4000-9d6b-f855527b7a1e_terseLabel_en-US" xlink:label="lab_pre_WriteOffMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Write-Off [Member]</link:label>
    <link:label id="lab_pre_WriteOffMember_label_en-US" xlink:label="lab_pre_WriteOffMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Write-Off [Member]</link:label>
    <link:label id="lab_pre_WriteOffMember_documentation_en-US" xlink:label="lab_pre_WriteOffMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Write-Off</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WriteOffMember" xlink:href="pre-20241231.xsd#pre_WriteOffMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WriteOffMember" xlink:to="lab_pre_WriteOffMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RangeDomain_b37195e6-fffe-4252-87e9-50bfeb241aac_terseLabel_en-US" xlink:label="lab_ifrs-full_RangeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Range [domain]</link:label>
    <link:label id="lab_ifrs-full_RangeDomain_label_en-US" xlink:label="lab_ifrs-full_RangeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangeDomain" xlink:to="lab_ifrs-full_RangeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RelatedPartyTransactionsAbstract_label_en-US" xlink:label="lab_ifrs-full_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related party transactions [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RelatedPartyTransactionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RelatedPartyTransactionsAbstract" xlink:to="lab_ifrs-full_RelatedPartyTransactionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAbstract_52d0b580-6690-4376-bf3f-2c170b59adb3_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive (expense) income for the year/period</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShare_7fb1a232-10ca-47e8-bb76-e925c54585a6_terseLabel_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic loss per share ($ per share)</link:label>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShare_label_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic earnings (loss) per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BasicEarningsLossPerShare" xlink:to="lab_ifrs-full_BasicEarningsLossPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PaymentsForPurchaseOfShortTermDeposits_dea1e5af-72d2-47e5-ade3-79ce54230fda_negatedTerseLabel_en-US" xlink:label="lab_pre_PaymentsForPurchaseOfShortTermDeposits" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Payments For Purchase Of Short-Term Deposits</link:label>
    <link:label id="lab_pre_PaymentsForPurchaseOfShortTermDeposits_label_en-US" xlink:label="lab_pre_PaymentsForPurchaseOfShortTermDeposits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments For Purchase Of Short-Term Deposits</link:label>
    <link:label id="lab_pre_PaymentsForPurchaseOfShortTermDeposits_documentation_en-US" xlink:label="lab_pre_PaymentsForPurchaseOfShortTermDeposits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments For Purchase Of Short-Term Deposits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PaymentsForPurchaseOfShortTermDeposits" xlink:href="pre-20241231.xsd#pre_PaymentsForPurchaseOfShortTermDeposits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PaymentsForPurchaseOfShortTermDeposits" xlink:to="lab_pre_PaymentsForPurchaseOfShortTermDeposits" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock_5337be7f-9482-46c7-85be-35c2de08c3c2_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of details of the restricted share units outstanding</link:label>
    <link:label id="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfDetailsOfOtherEquityInstrumentsOutstanding [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfDetailsOfOtherEquityInstrumentsOutstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock" xlink:to="lab_pre_ScheduleOfDetailsOfOtherEquityInstrumentsOutstandingTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract_4c36706b-5657-48bc-902a-97e3390052d5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities_fa40bcd7-3dd9-4550-aa8c-52314c95aa84_totalLabel_en-US" xlink:label="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Non accrued expenses and other non current liabilities</link:label>
    <link:label id="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities_label_en-US" xlink:label="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non Accrued Expenses And Other Non Current Liabilities</link:label>
    <link:label id="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities_documentation_en-US" xlink:label="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non Accrued Expenses And Other Non Current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities" xlink:href="pre-20241231.xsd#pre_NonAccruedExpensesAndOtherNonCurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities" xlink:to="lab_pre_NonAccruedExpensesAndOtherNonCurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfReportableSegments1_a931881b-65e7-4b4c-96e9-05319f180559_terseLabel_en-US" xlink:label="lab_pre_NumberOfReportableSegments1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of reportable segments</link:label>
    <link:label id="lab_pre_NumberOfReportableSegments1_label_en-US" xlink:label="lab_pre_NumberOfReportableSegments1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Reportable Segments1</link:label>
    <link:label id="lab_pre_NumberOfReportableSegments1_documentation_en-US" xlink:label="lab_pre_NumberOfReportableSegments1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Reportable Segments1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfReportableSegments1" xlink:href="pre-20241231.xsd#pre_NumberOfReportableSegments1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfReportableSegments1" xlink:to="lab_pre_NumberOfReportableSegments1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_a3ec22f2-beb6-48e2-a8d0-8918ce16b452_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019_0d8376c6-ed59-4c45-a6d6-334df14e3247_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options granted (in US dollars per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options granted in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SellingAndDistributionExpensesMember_8182d9b5-288c-4a6f-92c4-5fc5a2959c4b_terseLabel_en-US" xlink:label="lab_pre_SellingAndDistributionExpensesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Selling And Distribution Expenses [Member]</link:label>
    <link:label id="lab_pre_SellingAndDistributionExpensesMember_label_en-US" xlink:label="lab_pre_SellingAndDistributionExpensesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling And Distribution Expenses [Member]</link:label>
    <link:label id="lab_pre_SellingAndDistributionExpensesMember_documentation_en-US" xlink:label="lab_pre_SellingAndDistributionExpensesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Selling And Distribution Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SellingAndDistributionExpensesMember" xlink:href="pre-20241231.xsd#pre_SellingAndDistributionExpensesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SellingAndDistributionExpensesMember" xlink:to="lab_pre_SellingAndDistributionExpensesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory_635121f0-f4b8-4583-be43-8dc6e29254e9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of number and aggregate fair value of RSU</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of number and weighted average exercise prices of other equity instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_country_GB_50725245-a0c0-4238-be9c-10a953e32d92_terseLabel_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UNITED KINGDOM</link:label>
    <link:label id="lab_country_GB_label_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED KINGDOM</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_GB"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_GB" xlink:to="lab_country_GB" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain_5777f96c-05fe-4233-8386-2383d9a91a2e_terseLabel_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [domain]</link:label>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain_label_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TimingOfTransferOfGoodsOrServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:to="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesDomain_8c1f2b0a-1119-431f-8f00-9234c1079000_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfInterestRatesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:to="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestOfTheWorldMember_07912fa4-b960-4fec-ab92-99aa7c2c6815_terseLabel_en-US" xlink:label="lab_pre_RestOfTheWorldMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Rest Of The World [Member]</link:label>
    <link:label id="lab_pre_RestOfTheWorldMember_label_en-US" xlink:label="lab_pre_RestOfTheWorldMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Rest Of The World [Member]</link:label>
    <link:label id="lab_pre_RestOfTheWorldMember_documentation_en-US" xlink:label="lab_pre_RestOfTheWorldMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Rest Of The World</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestOfTheWorldMember" xlink:href="pre-20241231.xsd#pre_RestOfTheWorldMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestOfTheWorldMember" xlink:to="lab_pre_RestOfTheWorldMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember_6ea87fe6-e59d-4c65-b0e7-32180fe816f7_terseLabel_en-US" xlink:label="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sales Of Medical Diagnostics Products Within The Diagnostics Segment [Member]</link:label>
    <link:label id="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember_label_en-US" xlink:label="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales Of Medical Diagnostics Products Within The Diagnostics Segment [Member]</link:label>
    <link:label id="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember_documentation_en-US" xlink:label="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sales Of Medical Diagnostics Products Within The Diagnostics Segment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember" xlink:href="pre-20241231.xsd#pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember" xlink:to="lab_pre_SalesOfMedicalDiagnosticsProductsWithinTheDiagnosticsSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_152bfd47-afb0-4644-998b-a8c75f163306_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RevenueFromFundingSupportOfJobCreationScheme_800c09e7-1390-49c3-80af-7afd7e5833a4_terseLabel_en-US" xlink:label="lab_pre_RevenueFromFundingSupportOfJobCreationScheme" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue from funding support of job creation scheme</link:label>
    <link:label id="lab_pre_RevenueFromFundingSupportOfJobCreationScheme_label_en-US" xlink:label="lab_pre_RevenueFromFundingSupportOfJobCreationScheme" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue From Funding Support Of Job Creation Scheme</link:label>
    <link:label id="lab_pre_RevenueFromFundingSupportOfJobCreationScheme_documentation_en-US" xlink:label="lab_pre_RevenueFromFundingSupportOfJobCreationScheme" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue From Funding Support Of Job Creation Scheme</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RevenueFromFundingSupportOfJobCreationScheme" xlink:href="pre-20241231.xsd#pre_RevenueFromFundingSupportOfJobCreationScheme"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RevenueFromFundingSupportOfJobCreationScheme" xlink:to="lab_pre_RevenueFromFundingSupportOfJobCreationScheme" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable_27dc0045-996a-4bf1-ae36-45bb577ad888_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Carrying Amounts And Fair Values of Financial Assets And Financial Liabilities [Table]</link:label>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable_label_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable</link:label>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable_documentation_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable" xlink:href="pre-20241231.xsd#pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable" xlink:to="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_079ba452-41be-4abf-b719-838950837870_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total adjustments to reconcile profit (loss)</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operations before changes in working capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate_54644991-18c3-487f-a96b-c38ce8dbf452_totalLabel_en-US" xlink:label="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net Cash Outflow Arising Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Outflow Arising Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net Cash Outflow Arising Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_NetCashOutflowArisingRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_EuropaPartnersHoldingsLLCMember_c4b7de6b-fe56-47ee-92f3-591ee0c472db_terseLabel_en-US" xlink:label="lab_pre_EuropaPartnersHoldingsLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Europa Partners Holdings, LLC [Member]</link:label>
    <link:label id="lab_pre_EuropaPartnersHoldingsLLCMember_label_en-US" xlink:label="lab_pre_EuropaPartnersHoldingsLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Europa Partners Holdings, LLC [Member]</link:label>
    <link:label id="lab_pre_EuropaPartnersHoldingsLLCMember_documentation_en-US" xlink:label="lab_pre_EuropaPartnersHoldingsLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Europa Partners Holdings, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_EuropaPartnersHoldingsLLCMember" xlink:href="pre-20241231.xsd#pre_EuropaPartnersHoldingsLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_EuropaPartnersHoldingsLLCMember" xlink:to="lab_pre_EuropaPartnersHoldingsLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock_7e2999b8-8e01-44c4-b367-e5d0a1d453a0_verboseLabel_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of expiry date of cumulative tax losses explanatory</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information Expiry Date Of Cumulative Tax Losses Explanatory [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information Expiry Date Of Cumulative Tax Losses Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock" xlink:to="lab_pre_DisclosureOfDetailedInformationExpiryDateOfCumulativeTaxLossesExplanatoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalDomain_ee41922f-d8cf-4b51-a6f8-f35e2647dfe4_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of share capital [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of share capital [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:to="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SeriesDPreferenceSharesMember_cb65158b-861c-4491-8386-8526b6034211_terseLabel_en-US" xlink:label="lab_pre_SeriesDPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Series D preference shares</link:label>
    <link:label id="lab_pre_SeriesDPreferenceSharesMember_label_en-US" xlink:label="lab_pre_SeriesDPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series D Preference Shares [Member]</link:label>
    <link:label id="lab_pre_SeriesDPreferenceSharesMember_documentation_en-US" xlink:label="lab_pre_SeriesDPreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series D Preference Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SeriesDPreferenceSharesMember" xlink:href="pre-20241231.xsd#pre_SeriesDPreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SeriesDPreferenceSharesMember" xlink:to="lab_pre_SeriesDPreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesDomain_7eefa450-0aa6-49b0-8517-c9194c0d4cfd_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncomeTaxDisclosureTable_17f6a717-0f0b-4653-818e-d90e0a7e4378_terseLabel_en-US" xlink:label="lab_pre_IncomeTaxDisclosureTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Table]</link:label>
    <link:label id="lab_pre_IncomeTaxDisclosureTable_label_en-US" xlink:label="lab_pre_IncomeTaxDisclosureTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Table]</link:label>
    <link:label id="lab_pre_IncomeTaxDisclosureTable_documentation_en-US" xlink:label="lab_pre_IncomeTaxDisclosureTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncomeTaxDisclosureTable" xlink:href="pre-20241231.xsd#pre_IncomeTaxDisclosureTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncomeTaxDisclosureTable" xlink:to="lab_pre_IncomeTaxDisclosureTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_a3fcf0ef-d9ae-4761-8220-cbd323ee501e_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends received</link:label>
    <link:label id="lab_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends received, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions_ccc5569d-3e2f-4e1c-ab3e-eb846c2467dc_terseLabel_en-US" xlink:label="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts Receivable From Equity-Accounted Investees, Related Party Transactions</link:label>
    <link:label id="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions_label_en-US" xlink:label="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts Receivable From Equity-Accounted Investees, Related Party Transactions</link:label>
    <link:label id="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions_documentation_en-US" xlink:label="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amounts Receivable From Equity-Accounted Investees, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions" xlink:href="pre-20241231.xsd#pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions" xlink:to="lab_pre_AmountsReceivableFromEquityAccountedInvesteesRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IM8GroupHoldingCompayMember_472f7d4e-e425-44f3-a996-a87fa1f980b7_terseLabel_en-US" xlink:label="lab_pre_IM8GroupHoldingCompayMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IM8 Group Holding Compay [Member]</link:label>
    <link:label id="lab_pre_IM8GroupHoldingCompayMember_label_en-US" xlink:label="lab_pre_IM8GroupHoldingCompayMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IM8 Group Holding Compay [Member]</link:label>
    <link:label id="lab_pre_IM8GroupHoldingCompayMember_documentation_en-US" xlink:label="lab_pre_IM8GroupHoldingCompayMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IM8 Group Holding Compay</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IM8GroupHoldingCompayMember" xlink:href="pre-20241231.xsd#pre_IM8GroupHoldingCompayMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IM8GroupHoldingCompayMember" xlink:to="lab_pre_IM8GroupHoldingCompayMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_41be6a1c-7db3-490e-877e-79a35ccdce3e_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_3303625a-b552-455d-994b-ac706931f7bd_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for business combinations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment_be7d861d-efa0-469d-8e1f-2706995f8d3b_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Adjustments for gain (loss) on disposals, property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for gain (loss) on disposals, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_912e3317-42b0-4488-bf66-b8a21777e9c8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis of consolidation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of basis of consolidation [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfConsolidationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfOperatingSegments1_62684ac3-9a76-4d97-8912-c44d3f366a20_terseLabel_en-US" xlink:label="lab_pre_NumberOfOperatingSegments1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of operating segments</link:label>
    <link:label id="lab_pre_NumberOfOperatingSegments1_label_en-US" xlink:label="lab_pre_NumberOfOperatingSegments1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Operating Segments1</link:label>
    <link:label id="lab_pre_NumberOfOperatingSegments1_documentation_en-US" xlink:label="lab_pre_NumberOfOperatingSegments1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Operating Segments1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfOperatingSegments1" xlink:href="pre-20241231.xsd#pre_NumberOfOperatingSegments1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfOperatingSegments1" xlink:to="lab_pre_NumberOfOperatingSegments1" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities_ad4e42bf-f57b-469b-a4fa-169991a570d6_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Carrying Value Financial Liabilities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Carrying Value Financial Liabilities</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Changes In Carrying Value Financial Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities" xlink:to="lab_pre_IncreaseDecreaseThroughChangesInCarryingValueFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock_6eb791d0-3846-4fc7-b622-547196721e8b_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of reconciliation between tax credit credited to profit or loss and accounting loss</link:label>
    <link:label id="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Effective Income Tax Rate Reconciliation1 [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Effective Income Tax Rate Reconciliation1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock" xlink:to="lab_pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WarrantsMember_d62f1d0f-aa64-40e9-bfc6-6ba5fec60f4b_terseLabel_en-US" xlink:label="lab_ifrs-full_WarrantsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrants</link:label>
    <link:label id="lab_ifrs-full_WarrantsMember_b4d25996-cbcf-4dda-9e69-bffb0f6699e9_verboseLabel_en-US" xlink:label="lab_ifrs-full_WarrantsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Warrants</link:label>
    <link:label id="lab_ifrs-full_WarrantsMember_label_en-US" xlink:label="lab_ifrs-full_WarrantsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WarrantsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WarrantsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WarrantsMember" xlink:to="lab_ifrs-full_WarrantsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ConsumablesAndReagentCurrent_5557012d-bd4c-4417-a57e-52bcbca82505_terseLabel_en-US" xlink:label="lab_pre_ConsumablesAndReagentCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumables And Reagent Current</link:label>
    <link:label id="lab_pre_ConsumablesAndReagentCurrent_label_en-US" xlink:label="lab_pre_ConsumablesAndReagentCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumables And Reagent Current</link:label>
    <link:label id="lab_pre_ConsumablesAndReagentCurrent_documentation_en-US" xlink:label="lab_pre_ConsumablesAndReagentCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consumables And Reagent Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ConsumablesAndReagentCurrent" xlink:href="pre-20241231.xsd#pre_ConsumablesAndReagentCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ConsumablesAndReagentCurrent" xlink:to="lab_pre_ConsumablesAndReagentCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_exch_XNIM_4ac8c597-d9e7-4b15-8d4e-d5a75a29d8a9_verboseLabel_en-US" xlink:label="lab_exch_XNIM" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">NASDAQ Intermarket</link:label>
    <link:label id="lab_exch_XNIM_label_en-US" xlink:label="lab_exch_XNIM" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NASDAQ INTERMARKET [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_exch_XNIM" xlink:href="https://xbrl.sec.gov/exch/2024/exch-2024.xsd#exch_XNIM"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_exch_XNIM" xlink:to="lab_exch_XNIM" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ProductsDevelopmentCostMember_ea17f1fd-3708-483b-84ad-c7d01155600c_terseLabel_en-US" xlink:label="lab_pre_ProductsDevelopmentCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products development cost</link:label>
    <link:label id="lab_pre_ProductsDevelopmentCostMember_label_en-US" xlink:label="lab_pre_ProductsDevelopmentCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products Development Cost [Member]</link:label>
    <link:label id="lab_pre_ProductsDevelopmentCostMember_documentation_en-US" xlink:label="lab_pre_ProductsDevelopmentCostMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Products Development Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ProductsDevelopmentCostMember" xlink:href="pre-20241231.xsd#pre_ProductsDevelopmentCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ProductsDevelopmentCostMember" xlink:to="lab_pre_ProductsDevelopmentCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement_69d1e918-2a32-49d5-a19d-472fdaa0a9db_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Forfeited (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of other equity instruments forfeited in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable_c5181b00-5230-4701-a4ed-2e31d7f91823_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of attribution of expenses by nature to their function [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of attribution of expenses by nature to their function [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable" xlink:to="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ParValuePerShare_bc25e106-3d5d-4766-8b26-bded00afb946_terseLabel_en-US" xlink:label="lab_ifrs-full_ParValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Par value per share (in US Dollars per share)</link:label>
    <link:label id="lab_ifrs-full_ParValuePerShare_label_en-US" xlink:label="lab_ifrs-full_ParValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Par value per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ParValuePerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ParValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ParValuePerShare" xlink:to="lab_ifrs-full_ParValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities_206caa71-8255-4e40-86d8-fde29baa5aaa_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, liabilities</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AuthorisedShareCapital_783c5603-5cb7-425c-97ca-f8e2ed054c12_terseLabel_en-US" xlink:label="lab_pre_AuthorisedShareCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Authorized share capital</link:label>
    <link:label id="lab_pre_AuthorisedShareCapital_label_en-US" xlink:label="lab_pre_AuthorisedShareCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Authorised Share Capital</link:label>
    <link:label id="lab_pre_AuthorisedShareCapital_documentation_en-US" xlink:label="lab_pre_AuthorisedShareCapital" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Authorised Share Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AuthorisedShareCapital" xlink:href="pre-20241231.xsd#pre_AuthorisedShareCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AuthorisedShareCapital" xlink:to="lab_pre_AuthorisedShareCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations_6bebfd0f-3b76-45c5-9c18-ba97068055c3_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities, discontinued operations</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities, discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Accruals_cd27d0f2-dce9-4f82-bcca-8e8f89b5a2fd_negatedLabel_en-US" xlink:label="lab_ifrs-full_Accruals" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accruals</link:label>
    <link:label id="lab_ifrs-full_Accruals_label_en-US" xlink:label="lab_ifrs-full_Accruals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accruals</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Accruals" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Accruals"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Accruals" xlink:to="lab_ifrs-full_Accruals" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations_54070312-e64a-4dd0-aae8-b9fa619f9d85_terseLabel_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted (in US Dollar per share)</link:label>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted earnings (loss) per share from discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations" xlink:to="lab_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_df221778-73eb-4bce-b07e-8259e602c885_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill_9497ac8a-4f9a-4909-bdc5-94a8eed52914_terseLabel_en-US" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated useful lives</link:label>
    <link:label id="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Useful life measured as period of time, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock_265ef16d-cc89-4500-8220-859c822c2956_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of movements in balance</link:label>
    <link:label id="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLoss [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLoss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:to="lab_pre_ScheduleOfChangesInFinancialAssetsAtFairValueThroughProfitOrLossTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_3092dfcd-e455-40c8-a7f3-7fcb6c35bae9_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through foreign exchange, financial assets</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through foreign exchange, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities_48b71e35-2f8b-49bd-aa0a-4de93f50f0a3_terseLabel_en-US" xlink:label="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from trade financing liabilities</link:label>
    <link:label id="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds From Trade Financing Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proceeds From Trade Financing Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_ProceedsFromTradeFinancingLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AddressTypeDomain_7d4635ad-c797-4094-9374-465c5ab056ea_terseLabel_en-US" xlink:label="lab_dei_AddressTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Address Type [Domain]</link:label>
    <link:label id="lab_dei_AddressTypeDomain_label_en-US" xlink:label="lab_dei_AddressTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Address Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AddressTypeDomain" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AddressTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AddressTypeDomain" xlink:to="lab_dei_AddressTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities_28151a9d-c4a7-469d-a58b-e14e76867789_negatedLabel_en-US" xlink:label="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Decrease Through Payment Of Interest Element Of Lease Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Payment Of Interest Element Of Lease Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Payment Of Interest Element Of Lease Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_DecreaseThroughPaymentOfInterestElementOfLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EliminationOfIntersegmentAmountsMember_38e163f0-ed83-44f9-892b-ca4a44af600c_terseLabel_en-US" xlink:label="lab_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Elimination of intersegment amounts</link:label>
    <link:label id="lab_ifrs-full_EliminationOfIntersegmentAmountsMember_label_en-US" xlink:label="lab_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Elimination of intersegment amounts [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EliminationOfIntersegmentAmountsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:to="lab_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems_e1ee0827-e060-4e7b-8485-8db57dde20ab_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Carrying Amounts And Fair Values of Financial Assets And Financial Liabilities [Line Items]</link:label>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems</link:label>
    <link:label id="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems_documentation_en-US" xlink:label="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems" xlink:href="pre-20241231.xsd#pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems" xlink:to="lab_pre_ScheduleOfCarryingAmountsAndFairValuesOfFinancialAssetsAndFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentValueAddedTaxPayables_b8c24a8d-6db5-431e-8360-b1feff64b517_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentValueAddedTaxPayables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current value added tax payables</link:label>
    <link:label id="lab_ifrs-full_CurrentValueAddedTaxPayables_label_en-US" xlink:label="lab_ifrs-full_CurrentValueAddedTaxPayables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current value added tax payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentValueAddedTaxPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentValueAddedTaxPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentValueAddedTaxPayables" xlink:to="lab_ifrs-full_CurrentValueAddedTaxPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets_b6ff5cad-473a-4121-886e-3ec6538125d8_terseLabel_en-US" xlink:label="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Decrease through write-off, financial assets</link:label>
    <link:label id="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease through write-off, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DecreaseThroughWriteoffFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:to="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromOperatingActivities_ac06763d-b587-45df-b1d3-934b97d806a4_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="lab_ifrs-full_ProfitLossFromOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionsToRightofuseAssets_6994f9d0-8378-4411-b693-399a850cd1d3_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdditionsToRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Additions to right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_AdditionsToRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_AdditionsToRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions to right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdditionsToRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsToRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsToRightofuseAssets" xlink:to="lab_ifrs-full_AdditionsToRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable_27a800e4-5567-4036-995b-a9d0d348ccbc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinanceCosts_6f2dac80-ae50-4ab1-ab81-95a532623a76_totalLabel_en-US" xlink:label="lab_ifrs-full_FinanceCosts" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Finance costs</link:label>
    <link:label id="lab_ifrs-full_FinanceCosts_label_en-US" xlink:label="lab_ifrs-full_FinanceCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finance costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinanceCosts" xlink:to="lab_ifrs-full_FinanceCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_3cbb7155-37d0-4b4d-86e6-026852eacb76_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of property, plant and equipment [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of property, plant and equipment [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock_40fd61bf-4f9b-4594-9e06-eed429d78d8a_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of inventories</link:label>
    <link:label id="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Inventory, Current1 [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Inventory, Current1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfInventoryCurrent1TableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfInventoryCurrent1TableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfInventoryCurrent1TableTextBlock" xlink:to="lab_pre_ScheduleOfInventoryCurrent1TableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ServicessTransferredAtAPointInTimeMember_d7edda75-d436-4dc5-81d2-6e94fb9ca98d_terseLabel_en-US" xlink:label="lab_pre_ServicessTransferredAtAPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Servicess Transferred at a Point in Time [Member]</link:label>
    <link:label id="lab_pre_ServicessTransferredAtAPointInTimeMember_label_en-US" xlink:label="lab_pre_ServicessTransferredAtAPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Servicess Transferred at a Point in Time [Member]</link:label>
    <link:label id="lab_pre_ServicessTransferredAtAPointInTimeMember_documentation_en-US" xlink:label="lab_pre_ServicessTransferredAtAPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Servicess Transferred at a Point in Time</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ServicessTransferredAtAPointInTimeMember" xlink:href="pre-20241231.xsd#pre_ServicessTransferredAtAPointInTimeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ServicessTransferredAtAPointInTimeMember" xlink:to="lab_pre_ServicessTransferredAtAPointInTimeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_3bca427a-9d3e-45d7-9dfa-e35455172d82_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities [abstract]</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent_4893a906-fe2b-4c32-8154-e352251910e4_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent_434c2c43-76be-4711-ad4a-3b61652bc1e0_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to owners of parent</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilityAsset_88c8040d-0f8c-4a92-959b-18b32a8fd568_periodStartLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">At the beginning of the period</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilityAsset_57082e35-11e9-485b-b700-b208d71dd490_periodEndLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">At the end of the year</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilityAsset_1f438418-fa57-4ada-9417-b4c4f642efee_totalLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liability (asset)</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxLiabilityAsset" xlink:to="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects_a7691227-53e7-40b9-bab9-9e892e2c919d_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Loss)/earnings for the purpose of basic earnings/(loss) per share being net loss attributable to equity shareholders of the Company, from the discontinued operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from discontinued operations attributable to ordinary equity holders of parent entity, used in calculating diluted earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:to="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_fdeadbdb-b80b-4acf-96df-a6f12548dc13_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, intangible assets other than goodwill</link:label>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInventoriesExplanatory_13a15561-9f11-48cf-bf90-ad83b4ca55d9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInventoriesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of inventories [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ProceedsFromReverseRecapitalization_6aaa4ed7-09b7-48c8-aaae-c5b4364b62c1_terseLabel_en-US" xlink:label="lab_pre_ProceedsFromReverseRecapitalization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ProceedsFromReverseRecapitalization</link:label>
    <link:label id="lab_pre_ProceedsFromReverseRecapitalization_label_en-US" xlink:label="lab_pre_ProceedsFromReverseRecapitalization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ProceedsFromReverseRecapitalization</link:label>
    <link:label id="lab_pre_ProceedsFromReverseRecapitalization_documentation_en-US" xlink:label="lab_pre_ProceedsFromReverseRecapitalization" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ProceedsFromReverseRecapitalization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ProceedsFromReverseRecapitalization" xlink:href="pre-20241231.xsd#pre_ProceedsFromReverseRecapitalization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ProceedsFromReverseRecapitalization" xlink:to="lab_pre_ProceedsFromReverseRecapitalization" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_a5f52824-4539-48a3-a002-3ce158e0a017_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_125425e7-41a4-4848-bf1e-caf8ebfb4f5c_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentLeaseLiabilities_9f678db6-d6a1-4c09-83f4-6ff899c4420d_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current lease liabilities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLeaseLiabilities_b0a2dfb4-9bea-4cdc-9c0a-5876f11b86ef_verboseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities, non-current</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLeaseLiabilities" xlink:to="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_934f5d18-e025-4881-8055-4cb70fae615c_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_b73ad8e9-6cd5-4c97-8bbe-483b5ef95387_periodStartLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment at beginning of period</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_bd0b592a-0aae-4766-b8d5-99be0670a64d_periodEndLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment at end of period</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashOnHand_41defdd4-878c-4b4f-bd9c-5ab494b00965_terseLabel_en-US" xlink:label="lab_ifrs-full_CashOnHand" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash on hand</link:label>
    <link:label id="lab_ifrs-full_CashOnHand_label_en-US" xlink:label="lab_ifrs-full_CashOnHand" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash on hand</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashOnHand" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashOnHand"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashOnHand" xlink:to="lab_ifrs-full_CashOnHand" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_c0d4573b-dbec-4f80-840d-5772c8a1cf33_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest expense on other financial liabilities</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on other financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnOtherFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:to="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory_03c60618-969c-4bf3-9269-2e2ad3284ced_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of net book value of right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsAbstract_6d38ed32-5240-4384-b55e-6d15983be9d3_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings [abstract]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsAbstract_label_en-US" xlink:label="lab_ifrs-full_BorrowingsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsAbstract" xlink:to="lab_ifrs-full_BorrowingsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_498739f8-211f-4113-befb-5bce2f2d131a_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales of property, plant and equipment, classified as investing activities</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales of property, plant and equipment, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAbstract_f097bccc-7fd9-42c0-bb2d-38b2d863ee46_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital and Reserves</link:label>
    <link:label id="lab_ifrs-full_EquityAbstract_label_en-US" xlink:label="lab_ifrs-full_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="lab_ifrs-full_EquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfTreasurySharesRepurchased_a59a4b44-9d8c-4406-8a3c-fb1c9befaeb1_terseLabel_en-US" xlink:label="lab_pre_NumberOfTreasurySharesRepurchased" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of treasury shares repurchased (in shares)</link:label>
    <link:label id="lab_pre_NumberOfTreasurySharesRepurchased_label_en-US" xlink:label="lab_pre_NumberOfTreasurySharesRepurchased" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Treasury Shares Repurchased</link:label>
    <link:label id="lab_pre_NumberOfTreasurySharesRepurchased_documentation_en-US" xlink:label="lab_pre_NumberOfTreasurySharesRepurchased" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of Treasury Shares Repurchased</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfTreasurySharesRepurchased" xlink:href="pre-20241231.xsd#pre_NumberOfTreasurySharesRepurchased"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfTreasurySharesRepurchased" xlink:to="lab_pre_NumberOfTreasurySharesRepurchased" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestCostsAbstract_75060b63-512a-4ea4-8a1a-d5262b141f79_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest costs [abstract]</link:label>
    <link:label id="lab_ifrs-full_InterestCostsAbstract_label_en-US" xlink:label="lab_ifrs-full_InterestCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest costs [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestCostsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestCostsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestCostsAbstract" xlink:to="lab_ifrs-full_InterestCostsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForOtherFinanceCosts_a29c84bc-64e9-4257-b9a1-81667a88f729_terseLabel_en-US" xlink:label="lab_pre_AdjustmentsForOtherFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain on early termination of lease</link:label>
    <link:label id="lab_pre_AdjustmentsForOtherFinanceCosts_label_en-US" xlink:label="lab_pre_AdjustmentsForOtherFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Other Finance Costs</link:label>
    <link:label id="lab_pre_AdjustmentsForOtherFinanceCosts_documentation_en-US" xlink:label="lab_pre_AdjustmentsForOtherFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Other Finance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForOtherFinanceCosts" xlink:href="pre-20241231.xsd#pre_AdjustmentsForOtherFinanceCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForOtherFinanceCosts" xlink:to="lab_pre_AdjustmentsForOtherFinanceCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod_723d4cfa-097e-4d0b-b285-ae8e1d730d94_terseLabel_en-US" xlink:label="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting Period (in years)</link:label>
    <link:label id="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod_label_en-US" xlink:label="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangements, Award Vesting Period</link:label>
    <link:label id="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod_documentation_en-US" xlink:label="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangements, Award Vesting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ShareBasedPaymentArrangementsAwardVestingPeriod" xlink:href="pre-20241231.xsd#pre_ShareBasedPaymentArrangementsAwardVestingPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ShareBasedPaymentArrangementsAwardVestingPeriod" xlink:to="lab_pre_ShareBasedPaymentArrangementsAwardVestingPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_10bf2547-ed9b-4d9c-979f-d18efbcb4270_terseLabel_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [axis]</link:label>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_label_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BusinessCombinationsDomain_0131cd12-97f3-42fb-972f-c86217300d54_terseLabel_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:label id="lab_ifrs-full_BusinessCombinationsDomain_label_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsDomain" xlink:to="lab_ifrs-full_BusinessCombinationsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments_d8f3ddd7-ace7-4640-a243-c1627e40f8e8_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on disposals of investments</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments_6eb43568-6118-4c0a-9e95-851f505408bc_verboseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on disposals of investments</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on disposals of investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:to="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_BeneficialInterestHeldDomain_f4ca35df-ce38-43dc-b9af-98708e378409_terseLabel_en-US" xlink:label="lab_pre_BeneficialInterestHeldDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Beneficial Interest Held [Domain]</link:label>
    <link:label id="lab_pre_BeneficialInterestHeldDomain_label_en-US" xlink:label="lab_pre_BeneficialInterestHeldDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Beneficial Interest Held [Domain]</link:label>
    <link:label id="lab_pre_BeneficialInterestHeldDomain_documentation_en-US" xlink:label="lab_pre_BeneficialInterestHeldDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Beneficial Interest Held [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_BeneficialInterestHeldDomain" xlink:href="pre-20241231.xsd#pre_BeneficialInterestHeldDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_BeneficialInterestHeldDomain" xlink:to="lab_pre_BeneficialInterestHeldDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProductsAndServicesDomain_d8ad91a8-8c7a-421b-9ed7-84eab9b84955_terseLabel_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products and services [domain]</link:label>
    <link:label id="lab_ifrs-full_ProductsAndServicesDomain_label_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products and services [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProductsAndServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesDomain" xlink:to="lab_ifrs-full_ProductsAndServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherLiabilities_7719dabf-403a-489c-9785-6ce40f371741_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_ifrs-full_OtherLiabilities_label_en-US" xlink:label="lab_ifrs-full_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherLiabilities" xlink:to="lab_ifrs-full_OtherLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_2501fc2a-a601-4ca0-a824-dcb63de98ca8_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_a83434c6-7a67-4ac9-b9ff-ff1e37726d7d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_BusinessContactMember_b0684af2-7018-4d08-8268-d18ceabc160f_terseLabel_en-US" xlink:label="lab_dei_BusinessContactMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Contact</link:label>
    <link:label id="lab_dei_BusinessContactMember_label_en-US" xlink:label="lab_dei_BusinessContactMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Contact [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_BusinessContactMember" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_BusinessContactMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_BusinessContactMember" xlink:to="lab_dei_BusinessContactMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxEffectOfTaxLosses_74ab16f4-95fa-4f53-b8e0-a547354b397d_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectOfTaxLosses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax effect of tax losses</link:label>
    <link:label id="lab_ifrs-full_TaxEffectOfTaxLosses_label_en-US" xlink:label="lab_ifrs-full_TaxEffectOfTaxLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect of tax losses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectOfTaxLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxEffectOfTaxLosses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfTaxLosses" xlink:to="lab_ifrs-full_TaxEffectOfTaxLosses" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PerformingMember_4df743de-9b9b-48c0-ae4a-fcf41d90ac7d_terseLabel_en-US" xlink:label="lab_pre_PerformingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Performing [Member]</link:label>
    <link:label id="lab_pre_PerformingMember_label_en-US" xlink:label="lab_pre_PerformingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Performing [Member]</link:label>
    <link:label id="lab_pre_PerformingMember_documentation_en-US" xlink:label="lab_pre_PerformingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Performing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PerformingMember" xlink:href="pre-20241231.xsd#pre_PerformingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PerformingMember" xlink:to="lab_pre_PerformingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_d986da7f-f376-421d-b1e4-0b94fc577019_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">List of subsidiaries</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SaleOfStockPricePerShare1_e883d42c-be6d-472a-8494-1866dd732608_verboseLabel_en-US" xlink:label="lab_pre_SaleOfStockPricePerShare1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Sale of stock price per share (in US Dollar per shares)</link:label>
    <link:label id="lab_pre_SaleOfStockPricePerShare1_label_en-US" xlink:label="lab_pre_SaleOfStockPricePerShare1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Stock Price Per Share1</link:label>
    <link:label id="lab_pre_SaleOfStockPricePerShare1_documentation_en-US" xlink:label="lab_pre_SaleOfStockPricePerShare1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Stock Price Per Share1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SaleOfStockPricePerShare1" xlink:href="pre-20241231.xsd#pre_SaleOfStockPricePerShare1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SaleOfStockPricePerShare1" xlink:to="lab_pre_SaleOfStockPricePerShare1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesIncurred_8cb37b7d-a863-47db-8571-acd8c9178899_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncurred" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities incurred</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesIncurred_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncurred" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities incurred</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesIncurred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesIncurred"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesIncurred" xlink:to="lab_ifrs-full_LiabilitiesIncurred" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables_deaa8c84-31d7-4343-8751-4ac0754debc6_verboseLabel_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Increase in other payables and accruals</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables_label_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Increase (Decrease) In Deposits And Prepayments And Other Receivables</link:label>
    <link:label id="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables_documentation_en-US" xlink:label="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Increase (Decrease) In Deposits And Prepayments And Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables" xlink:href="pre-20241231.xsd#pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables" xlink:to="lab_pre_AdjustmentsForIncreaseDecreaseInDepositsAndPrepaymentsAndOtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice_84e621cc-576b-47c8-a79c-79f2ea41d0e2_terseLabel_en-US" xlink:label="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of simple interest on subscription price for redemption (%)</link:label>
    <link:label id="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice_label_en-US" xlink:label="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Simple Interest On Subscription Price</link:label>
    <link:label id="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice_documentation_en-US" xlink:label="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage Of Simple Interest On Subscription Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PercentageOfSimpleInterestOnSubscriptionPrice" xlink:href="pre-20241231.xsd#pre_PercentageOfSimpleInterestOnSubscriptionPrice"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PercentageOfSimpleInterestOnSubscriptionPrice" xlink:to="lab_pre_PercentageOfSimpleInterestOnSubscriptionPrice" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfInterestsInAssociates_6ef64013-65ab-4dd1-9f5e-7fc4057f88b8_terseLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfInterestsInAssociates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase of interests in associates</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfInterestsInAssociates_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfInterestsInAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of interests in associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfInterestsInAssociates" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfInterestsInAssociates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfInterestsInAssociates" xlink:to="lab_ifrs-full_PurchaseOfInterestsInAssociates" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Prepayments_8363c2de-151e-4b7f-80e1-e58b4e49ffbc_verboseLabel_en-US" xlink:label="lab_ifrs-full_Prepayments" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Prepayments</link:label>
    <link:label id="lab_ifrs-full_Prepayments_label_en-US" xlink:label="lab_ifrs-full_Prepayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepayments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Prepayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Prepayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Prepayments" xlink:to="lab_ifrs-full_Prepayments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities_2048ca04-53a9-4858-868e-eb6f8d27f469_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through other changes, liabilities arising from financing activities</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through other changes, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems_13316c28-d58b-43eb-91e3-007658808f48_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of attribution of expenses by nature to their function [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of attribution of expenses by nature to their function [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="lab_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityShellCompany_1ffd2458-ae7f-47bc-8177-945b59456d29_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Shell Company</link:label>
    <link:label id="lab_dei_EntityShellCompany_label_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Shell Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany" xlink:to="lab_dei_EntityShellCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_001d6eab-2566-4b5f-85a0-40b5dbb61919_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summarises the recognised amounts of assets acquired and liabilities assumed at the date of acquisition</link:label>
    <link:label id="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Identifiable Assets Acquired And Liabilities Assumed [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Identifiable Assets Acquired And Liabilities Assumed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:to="lab_pre_DisclosureOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_b408b73c-4202-4d90-98d9-0f4d8ae44b0c_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherCurrentPayables_e1b8dcde-b574-45f7-8722-fcdd64c78d7f_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_OtherCurrentPayables" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other current payables</link:label>
    <link:label id="lab_ifrs-full_OtherCurrentPayables_7e751817-2418-4837-bebc-65bdbf2de46f_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherCurrentPayables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other current payables</link:label>
    <link:label id="lab_ifrs-full_OtherCurrentPayables_label_en-US" xlink:label="lab_ifrs-full_OtherCurrentPayables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other current payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentPayables" xlink:to="lab_ifrs-full_OtherCurrentPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AccruedExpenseAndOtherCurrentLiabilities_67bef3fc-58e7-49b8-be94-8be67d1abf43_terseLabel_en-US" xlink:label="lab_pre_AccruedExpenseAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount due to a related company</link:label>
    <link:label id="lab_pre_AccruedExpenseAndOtherCurrentLiabilities_label_en-US" xlink:label="lab_pre_AccruedExpenseAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Expense And Other Current Liabilities</link:label>
    <link:label id="lab_pre_AccruedExpenseAndOtherCurrentLiabilities_documentation_en-US" xlink:label="lab_pre_AccruedExpenseAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued Expense And Other Current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AccruedExpenseAndOtherCurrentLiabilities" xlink:href="pre-20241231.xsd#pre_AccruedExpenseAndOtherCurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AccruedExpenseAndOtherCurrentLiabilities" xlink:to="lab_pre_AccruedExpenseAndOtherCurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsDomain_c93d7434-2eef-40f2-8e9c-2b6b995b4cbe_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsDomain_label_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentConsolidationItemsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentConsolidationItemsDomain" xlink:to="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_9b7df490-04e7-43dc-b2c0-196f362755c4_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for unrealised foreign exchange losses (gains)</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for unrealised foreign exchange losses (gains)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:to="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract_db492d97-2783-4b24-a63d-072cb4714fdb_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant accounting policies</link:label>
    <link:label id="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract_label_en-US" xlink:label="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of changes in accounting policies, accounting estimates and errors [Abstract]</link:label>
    <link:label id="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract_documentation_en-US" xlink:label="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of changes in accounting policies, accounting estimates and errors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract" xlink:href="pre-20241231.xsd#pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract" xlink:to="lab_pre_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncontrollingInterestsMember_b4641d5d-dbc0-4f38-bdf1-228127f262ca_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterestsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests [member]</link:label>
    <link:label id="lab_ifrs-full_NoncontrollingInterestsMember_label_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterestsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-controlling interests [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterestsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncontrollingInterestsMember" xlink:to="lab_ifrs-full_NoncontrollingInterestsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CounterpartyNameAxis_11464e17-d607-4f92-a9cb-9b852e6f0869_terseLabel_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:label id="lab_srt_CounterpartyNameAxis_label_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CounterpartyNameAxis" xlink:to="lab_srt_CounterpartyNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SeriesEPreferredSharesMember_5beb37f7-45e2-4652-86ed-05409b0f486f_terseLabel_en-US" xlink:label="lab_pre_SeriesEPreferredSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Series E preferred shares</link:label>
    <link:label id="lab_pre_SeriesEPreferredSharesMember_label_en-US" xlink:label="lab_pre_SeriesEPreferredSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series E Preferred Shares [Member]</link:label>
    <link:label id="lab_pre_SeriesEPreferredSharesMember_documentation_en-US" xlink:label="lab_pre_SeriesEPreferredSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Series E Preferred Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SeriesEPreferredSharesMember" xlink:href="pre-20241231.xsd#pre_SeriesEPreferredSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SeriesEPreferredSharesMember" xlink:to="lab_pre_SeriesEPreferredSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesAxis_0dff02f4-5d07-4970-b093-8b2cdf47627b_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReductionOfIssuedCapital_9d27deac-723b-4142-8966-80645543c6eb_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ReductionOfIssuedCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Reduction of issued capital</link:label>
    <link:label id="lab_ifrs-full_ReductionOfIssuedCapital_label_en-US" xlink:label="lab_ifrs-full_ReductionOfIssuedCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reduction of issued capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReductionOfIssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReductionOfIssuedCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReductionOfIssuedCapital" xlink:to="lab_ifrs-full_ReductionOfIssuedCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WarrantsLiabilities_b57be58c-9df9-4b54-b54b-4a5d54d55b2e_negatedLabel_en-US" xlink:label="lab_pre_WarrantsLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Warrants Liabilities</link:label>
    <link:label id="lab_pre_WarrantsLiabilities_label_en-US" xlink:label="lab_pre_WarrantsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants Liabilities</link:label>
    <link:label id="lab_pre_WarrantsLiabilities_documentation_en-US" xlink:label="lab_pre_WarrantsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Warrants Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WarrantsLiabilities" xlink:href="pre-20241231.xsd#pre_WarrantsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WarrantsLiabilities" xlink:to="lab_pre_WarrantsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepositsAndPrepaymentsNonCurrent_515ea07f-34e1-4c91-ba65-c02e42584fca_terseLabel_en-US" xlink:label="lab_pre_DepositsAndPrepaymentsNonCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits And Prepayments Non Current</link:label>
    <link:label id="lab_pre_DepositsAndPrepaymentsNonCurrent_label_en-US" xlink:label="lab_pre_DepositsAndPrepaymentsNonCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits And Prepayments Non Current</link:label>
    <link:label id="lab_pre_DepositsAndPrepaymentsNonCurrent_documentation_en-US" xlink:label="lab_pre_DepositsAndPrepaymentsNonCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposits And Prepayments Non Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepositsAndPrepaymentsNonCurrent" xlink:href="pre-20241231.xsd#pre_DepositsAndPrepaymentsNonCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepositsAndPrepaymentsNonCurrent" xlink:to="lab_pre_DepositsAndPrepaymentsNonCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock_6e79e878-8902-48e3-8119-88714cf1debe_terseLabel_en-US" xlink:label="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of movement in warrant liabilities</link:label>
    <link:label id="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatory [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock" xlink:to="lab_pre_DisclosureInTabularFormOfMovementInWarrantLiabilitiesExplanatoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CerbactAsiaHoldingsPte.LtdMember_b5a75af4-d093-4b89-9ca3-c9a68057ccab_terseLabel_en-US" xlink:label="lab_pre_CerbactAsiaHoldingsPte.LtdMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CERBACT Asia Holdings Pte. Ltd</link:label>
    <link:label id="lab_pre_CerbactAsiaHoldingsPte.LtdMember_label_en-US" xlink:label="lab_pre_CerbactAsiaHoldingsPte.LtdMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cerbact Asia Holdings Pte.Ltd [Member]</link:label>
    <link:label id="lab_pre_CerbactAsiaHoldingsPte.LtdMember_documentation_en-US" xlink:label="lab_pre_CerbactAsiaHoldingsPte.LtdMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cerbact Asia Holdings Pte.Ltd</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CerbactAsiaHoldingsPte.LtdMember" xlink:href="pre-20241231.xsd#pre_CerbactAsiaHoldingsPte.LtdMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CerbactAsiaHoldingsPte.LtdMember" xlink:to="lab_pre_CerbactAsiaHoldingsPte.LtdMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentPrepaidExpenses_b0007892-f61d-4144-9d2f-2093bdc56f47_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentPrepaidExpenses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_ifrs-full_CurrentPrepaidExpenses_label_en-US" xlink:label="lab_ifrs-full_CurrentPrepaidExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current prepaid expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentPrepaidExpenses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaidExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentPrepaidExpenses" xlink:to="lab_ifrs-full_CurrentPrepaidExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract_8f4b6678-110e-4dfb-9cba-471ddfe4a9f4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RightofuseAssetsMember_13527eb9-75d7-4862-ad37-db16641c73ce_terseLabel_en-US" xlink:label="lab_ifrs-full_RightofuseAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_RightofuseAssetsMember_label_en-US" xlink:label="lab_ifrs-full_RightofuseAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Right-of-use assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RightofuseAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RightofuseAssetsMember" xlink:to="lab_ifrs-full_RightofuseAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_WarrantLiabilitiesMember_e39dff42-ca33-4aa0-8b0f-fddacf5f4b81_terseLabel_en-US" xlink:label="lab_pre_WarrantLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrant Liabilities [Member]</link:label>
    <link:label id="lab_pre_WarrantLiabilitiesMember_label_en-US" xlink:label="lab_pre_WarrantLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Liabilities [Member]</link:label>
    <link:label id="lab_pre_WarrantLiabilitiesMember_documentation_en-US" xlink:label="lab_pre_WarrantLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Warrant Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_WarrantLiabilitiesMember" xlink:href="pre-20241231.xsd#pre_WarrantLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_WarrantLiabilitiesMember" xlink:to="lab_pre_WarrantLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAbstract_22fa9381-b336-489b-80a4-4e0bac8acb77_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income [abstract]</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_ComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_33407ae4-32d7-48b9-aa1c-1e449e39d19d_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_be09aa82-2955-491b-b9ac-9a5ea3f0ffc0_periodStartLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at beginning of period</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_42e8fce9-7ef5-4a01-888d-c4f6d5005ccf_periodEndLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at end of period</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_789a6b40-eb2e-463b-a227-aafebafcb513_totalLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_0f9562d1-0ddb-4198-91d1-72d3b90c8415_verboseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalents" xlink:to="lab_ifrs-full_CashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests_2ae8553f-0adc-4e3e-a5ec-8bfd801ff0fe_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income, attributable to non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, attributable to non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_4c710330-8799-4868-984b-4f53f9983bee_verboseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial instruments</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock_1f4871ff-d30c-4187-b9cb-075c42b13b77_verboseLabel_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Reverse recapitalization</link:label>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization Explanatory [Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Reverse Recapitalization Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock" xlink:to="lab_pre_DisclosureOfReverseRecapitalizationExplanatoryTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted_1e16c569-7448-4220-9aaf-4f3357ab373e_terseLabel_en-US" xlink:label="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected Probability Of A Liquidation Event As Percentage, Share Options Granted</link:label>
    <link:label id="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted_label_en-US" xlink:label="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected Probability Of A Liquidation Event As Percentage, Share Options Granted</link:label>
    <link:label id="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted_documentation_en-US" xlink:label="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expected Probability Of A Liquidation Event As Percentage, Share Options Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted" xlink:href="pre-20241231.xsd#pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted" xlink:to="lab_pre_ExpectedProbabilityOfALiquidationEventAsPercentageShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SignificantAccountingPoliciesTableLineItems_b069dfc0-4d6e-40da-a102-d6ade645cfb8_terseLabel_en-US" xlink:label="lab_pre_SignificantAccountingPoliciesTableLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Material Accounting Policies Table [Line Items]</link:label>
    <link:label id="lab_pre_SignificantAccountingPoliciesTableLineItems_label_en-US" xlink:label="lab_pre_SignificantAccountingPoliciesTableLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SignificantAccountingPoliciesTable [Line Items]</link:label>
    <link:label id="lab_pre_SignificantAccountingPoliciesTableLineItems_documentation_en-US" xlink:label="lab_pre_SignificantAccountingPoliciesTableLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SignificantAccountingPoliciesTable [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SignificantAccountingPoliciesTableLineItems" xlink:href="pre-20241231.xsd#pre_SignificantAccountingPoliciesTableLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SignificantAccountingPoliciesTableLineItems" xlink:to="lab_pre_SignificantAccountingPoliciesTableLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ClassACommonStockMember_406d9aa3-8e8a-47cf-8634-aa82e8b33f21_terseLabel_en-US" xlink:label="lab_pre_ClassACommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A ordinary shares</link:label>
    <link:label id="lab_pre_ClassACommonStockMember_label_en-US" xlink:label="lab_pre_ClassACommonStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class A Common Stock [Member]</link:label>
    <link:label id="lab_pre_ClassACommonStockMember_documentation_en-US" xlink:label="lab_pre_ClassACommonStockMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class A Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ClassACommonStockMember" xlink:href="pre-20241231.xsd#pre_ClassACommonStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ClassACommonStockMember" xlink:to="lab_pre_ClassACommonStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate_f125b9a3-ab46-42a5-b663-940b95ab74bb_negatedLabel_en-US" xlink:label="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Lease Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label id="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate_documentation_en-US" xlink:label="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Lease Liabilities Recognised As Of Acquisition Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="pre-20241231.xsd#pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_pre_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_UsdReferenceRateMember_3247a298-7936-4224-a5c3-f0d0f62062f7_terseLabel_en-US" xlink:label="lab_pre_UsdReferenceRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">USD reference rate (%)</link:label>
    <link:label id="lab_pre_UsdReferenceRateMember_label_en-US" xlink:label="lab_pre_UsdReferenceRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Usd Reference Rate [Member]</link:label>
    <link:label id="lab_pre_UsdReferenceRateMember_documentation_en-US" xlink:label="lab_pre_UsdReferenceRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Usd Reference Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_UsdReferenceRateMember" xlink:href="pre-20241231.xsd#pre_UsdReferenceRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_UsdReferenceRateMember" xlink:to="lab_pre_UsdReferenceRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TradePayablesMember_b6cbef0d-b61d-4eca-893d-6409dc651cca_terseLabel_en-US" xlink:label="lab_pre_TradePayablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade Payables [Member]</link:label>
    <link:label id="lab_pre_TradePayablesMember_label_en-US" xlink:label="lab_pre_TradePayablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade Payables [Member]</link:label>
    <link:label id="lab_pre_TradePayablesMember_documentation_en-US" xlink:label="lab_pre_TradePayablesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trade Payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TradePayablesMember" xlink:href="pre-20241231.xsd#pre_TradePayablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TradePayablesMember" xlink:to="lab_pre_TradePayablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_country_HK_7df280a5-2ded-437f-a46b-65d1eb7fc598_terseLabel_en-US" xlink:label="lab_country_HK" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">HONG KONG</link:label>
    <link:label id="lab_country_HK_label_en-US" xlink:label="lab_country_HK" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">HONG KONG</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_HK" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_HK"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_HK" xlink:to="lab_country_HK" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_4f9c032f-4db3-461f-8328-306c87d620b4_terseLabel_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_label_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityWellKnownSeasonedIssuer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory_6725992e-204b-4f45-a125-98dbf0608d9b_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of property, plant and equipment including right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TradeFinancingMember_8dd48810-e5ac-4604-95a5-71e50ed3e1e2_terseLabel_en-US" xlink:label="lab_pre_TradeFinancingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade Financing</link:label>
    <link:label id="lab_pre_TradeFinancingMember_label_en-US" xlink:label="lab_pre_TradeFinancingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade Financing [Member]</link:label>
    <link:label id="lab_pre_TradeFinancingMember_documentation_en-US" xlink:label="lab_pre_TradeFinancingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trade Financing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TradeFinancingMember" xlink:href="pre-20241231.xsd#pre_TradeFinancingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TradeFinancingMember" xlink:to="lab_pre_TradeFinancingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaturityAxis_0dd6d866-cdd4-477e-b657-6c94ea52ba92_terseLabel_en-US" xlink:label="lab_ifrs-full_MaturityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturity [axis]</link:label>
    <link:label id="lab_ifrs-full_MaturityAxis_label_en-US" xlink:label="lab_ifrs-full_MaturityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaturityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityAxis" xlink:to="lab_ifrs-full_MaturityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseOfRestructuringActivities_3dab8a7f-6c22-437d-b743-8e471388a4ee_negatedLabel_en-US" xlink:label="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Expense of restructuring activities</link:label>
    <link:label id="lab_ifrs-full_ExpenseOfRestructuringActivities_a3e3933d-0cba-4276-b04f-4058d5e9b73b_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expense of restructuring activities</link:label>
    <link:label id="lab_ifrs-full_ExpenseOfRestructuringActivities_label_en-US" xlink:label="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense of restructuring activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseOfRestructuringActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseOfRestructuringActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseOfRestructuringActivities" xlink:to="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TotalDepreciationAndAmortizationChargesMember_c58fb7fc-dc78-488b-956d-7331a4f1a3e7_terseLabel_en-US" xlink:label="lab_pre_TotalDepreciationAndAmortizationChargesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Depreciation And Amortization Charges [Member]</link:label>
    <link:label id="lab_pre_TotalDepreciationAndAmortizationChargesMember_label_en-US" xlink:label="lab_pre_TotalDepreciationAndAmortizationChargesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Depreciation And Amortization Charges [Member]</link:label>
    <link:label id="lab_pre_TotalDepreciationAndAmortizationChargesMember_documentation_en-US" xlink:label="lab_pre_TotalDepreciationAndAmortizationChargesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total Depreciation And Amortization Charges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TotalDepreciationAndAmortizationChargesMember" xlink:href="pre-20241231.xsd#pre_TotalDepreciationAndAmortizationChargesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TotalDepreciationAndAmortizationChargesMember" xlink:to="lab_pre_TotalDepreciationAndAmortizationChargesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PresentedByAbstract_6ed7e190-b6aa-4c7b-afa3-d872e8c30113_terseLabel_en-US" xlink:label="lab_pre_PresentedByAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Presented By [Abstract]</link:label>
    <link:label id="lab_pre_PresentedByAbstract_label_en-US" xlink:label="lab_pre_PresentedByAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Presented By [Abstract]</link:label>
    <link:label id="lab_pre_PresentedByAbstract_documentation_en-US" xlink:label="lab_pre_PresentedByAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Presented By</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PresentedByAbstract" xlink:href="pre-20241231.xsd#pre_PresentedByAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PresentedByAbstract" xlink:to="lab_pre_PresentedByAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnobservableInputsDomain_b0d28d88-ff40-4f60-bd8a-4fe949f3c12f_terseLabel_en-US" xlink:label="lab_ifrs-full_UnobservableInputsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unobservable inputs [domain]</link:label>
    <link:label id="lab_ifrs-full_UnobservableInputsDomain_label_en-US" xlink:label="lab_ifrs-full_UnobservableInputsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unobservable inputs [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnobservableInputsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnobservableInputsDomain" xlink:to="lab_ifrs-full_UnobservableInputsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_50d025ec-17e5-4713-8e7b-cf4d861dff24_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade receivables [member]</link:label>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_label_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade receivables [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeReceivablesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeReceivablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeReceivablesMember" xlink:to="lab_ifrs-full_TradeReceivablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_007c779c-973f-4060-9d3e-9d4b62dc0941_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesOutstanding_48563343-c189-40e0-b662-343b1c042f8a_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares outstanding (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesOutstanding_f8b63ed4-00d3-4ef7-88d0-ec110cead648_verboseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of shares outstanding (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesOutstanding_label_en-US" xlink:label="lab_ifrs-full_NumberOfSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesOutstanding" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesOutstanding" xlink:to="lab_ifrs-full_NumberOfSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_cee25f61-7fc0-4145-a966-6f46129a6f31_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for measuring inventories [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions_d1f1ac18-6c02-4ee8-ba79-7ce24baebbcb_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consultancy and management service income</link:label>
    <link:label id="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from rendering of services, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:to="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Inventories_81ab874a-3ee7-42fa-86fd-5631ddf5ca36_terseLabel_en-US" xlink:label="lab_ifrs-full_Inventories" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:label id="lab_ifrs-full_Inventories_69fb3ead-ef1c-4fb5-aa17-e9f5d9a12fc4_totalLabel_en-US" xlink:label="lab_ifrs-full_Inventories" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:label id="lab_ifrs-full_Inventories_label_en-US" xlink:label="lab_ifrs-full_Inventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current inventories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Inventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Inventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Inventories" xlink:to="lab_ifrs-full_Inventories" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement_59aa1eab-9bb4-4156-827c-2ef188d37b6a_negatedTerseLabel_en-US" xlink:label="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Number of stock options cancelled (in shares)</link:label>
    <link:label id="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement_label_en-US" xlink:label="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Share Options Cancelled In Share Based Payment Arrangement</link:label>
    <link:label id="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement_documentation_en-US" xlink:label="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Share Options Cancelled In Share Based Payment Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:href="pre-20241231.xsd#pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:to="lab_pre_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ArrangementTypeDomain_655ec88b-2521-49b1-a73c-e311afa869c7_terseLabel_en-US" xlink:label="lab_pre_ArrangementTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Arrangement Type [Domain]</link:label>
    <link:label id="lab_pre_ArrangementTypeDomain_label_en-US" xlink:label="lab_pre_ArrangementTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Arrangement Type [Domain]</link:label>
    <link:label id="lab_pre_ArrangementTypeDomain_documentation_en-US" xlink:label="lab_pre_ArrangementTypeDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Arrangement Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ArrangementTypeDomain" xlink:href="pre-20241231.xsd#pre_ArrangementTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ArrangementTypeDomain" xlink:to="lab_pre_ArrangementTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfJointVenturesAndAssociatesTable_40d6b146-b3a2-4a30-930e-02e7e2663ee3_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfJointVenturesAndAssociatesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of associates [table]</link:label>
    <link:label id="lab_pre_DisclosureOfJointVenturesAndAssociatesTable_label_en-US" xlink:label="lab_pre_DisclosureOfJointVenturesAndAssociatesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Joint Ventures And Associates [Table]</link:label>
    <link:label id="lab_pre_DisclosureOfJointVenturesAndAssociatesTable_documentation_en-US" xlink:label="lab_pre_DisclosureOfJointVenturesAndAssociatesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Joint Ventures And Associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfJointVenturesAndAssociatesTable" xlink:href="pre-20241231.xsd#pre_DisclosureOfJointVenturesAndAssociatesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfJointVenturesAndAssociatesTable" xlink:to="lab_pre_DisclosureOfJointVenturesAndAssociatesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract_2163117f-90c2-4267-b25b-75b2f48d85af_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income, continuing and discontinued operations [abstract]</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income, continuing and discontinued operations [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:to="lab_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_7843c007-4075-456f-a11e-91f40402a4e3_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_fd2c5bda-90b6-4b3a-80d3-8fa8836a2cc9_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnLeaseLiabilities_613c8584-ae3f-442e-bf05-2ca61d8d304f_verboseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest expense on lease liabilities</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnLeaseLiabilities_e79c127d-ac2a-4c13-aded-db781258afd7_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest expense on lease liabilities</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:to="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsByNameDomain_dceb4f17-1803-43ca-adfd-c8ff01ebc9a3_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsByNameDomain_label_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameDomain" xlink:to="lab_ifrs-full_BorrowingsByNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CustomerRelationshipMember_c13687ea-056f-44f2-b187-2f4382eee3c3_terseLabel_en-US" xlink:label="lab_pre_CustomerRelationshipMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer Relationship [Member]</link:label>
    <link:label id="lab_pre_CustomerRelationshipMember_label_en-US" xlink:label="lab_pre_CustomerRelationshipMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer Relationship [Member]</link:label>
    <link:label id="lab_pre_CustomerRelationshipMember_documentation_en-US" xlink:label="lab_pre_CustomerRelationshipMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Customer Relationship</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CustomerRelationshipMember" xlink:href="pre-20241231.xsd#pre_CustomerRelationshipMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CustomerRelationshipMember" xlink:to="lab_pre_CustomerRelationshipMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ReverseRecapitalizationAbstract_e7aff391-7645-4267-8276-1daabb83dbd3_terseLabel_en-US" xlink:label="lab_pre_ReverseRecapitalizationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse Recapitalization [Abstract]</link:label>
    <link:label id="lab_pre_ReverseRecapitalizationAbstract_label_en-US" xlink:label="lab_pre_ReverseRecapitalizationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Recapitalization [Abstract]</link:label>
    <link:label id="lab_pre_ReverseRecapitalizationAbstract_documentation_en-US" xlink:label="lab_pre_ReverseRecapitalizationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reverse Recapitalization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ReverseRecapitalizationAbstract" xlink:href="pre-20241231.xsd#pre_ReverseRecapitalizationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ReverseRecapitalizationAbstract" xlink:to="lab_pre_ReverseRecapitalizationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TrancheAxis_b5a602dc-da29-47f9-b864-9bb4d33538c5_terseLabel_en-US" xlink:label="lab_pre_TrancheAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tranche [Axis]</link:label>
    <link:label id="lab_pre_TrancheAxis_label_en-US" xlink:label="lab_pre_TrancheAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tranche [Axis]</link:label>
    <link:label id="lab_pre_TrancheAxis_documentation_en-US" xlink:label="lab_pre_TrancheAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tranche</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TrancheAxis" xlink:href="pre-20241231.xsd#pre_TrancheAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TrancheAxis" xlink:to="lab_pre_TrancheAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_6b09fcdf-8145-4421-a0fe-b09c1eab977e_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_46312a02-0299-4109-bd16-a0fcb20798b5_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-tax discount rate (%)</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discount rate applied to cash flow projections</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:to="lab_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestReceivedClassifiedAsInvestingActivities_dc74965e-c83e-43d5-b376-17318a307c25_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest received</link:label>
    <link:label id="lab_ifrs-full_InterestReceivedClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest received, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_0322d2c3-57b2-4aca-b850-80d09a77e712_totalLabel_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total employee benefits expense</link:label>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_label_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee benefits expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EmployeeBenefitsExpense" xlink:to="lab_ifrs-full_EmployeeBenefitsExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentFinancialAssets_afaef72e-c0a4-4041-95d4-a3fe9d5e45f9_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current financial assets</link:label>
    <link:label id="lab_ifrs-full_CurrentFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentFinancialAssets" xlink:to="lab_ifrs-full_CurrentFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_6014d9f6-09ed-4733-b2ed-a1c83f9c7b79_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in joint ventures accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_JointVenturesDomain_5962c829-6f66-4150-8269-01b2d54fb9b0_terseLabel_en-US" xlink:label="lab_ifrs-full_JointVenturesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint ventures [domain]</link:label>
    <link:label id="lab_ifrs-full_JointVenturesDomain_label_en-US" xlink:label="lab_ifrs-full_JointVenturesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint ventures [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_JointVenturesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_JointVenturesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_JointVenturesDomain" xlink:to="lab_ifrs-full_JointVenturesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity_ecc9b5a1-b8c5-4f74-bc34-661d75c8a2c7_terseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit and total comprehensive (expense) income</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity_7b757da0-72f1-4ddf-9c40-2b3207789832_verboseLabel_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Vesting Of Share Based Payment Transactions, Equity</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity_label_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Vesting Of Share Based Payment Transactions, Equity</link:label>
    <link:label id="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity_documentation_en-US" xlink:label="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Vesting Of Share Based Payment Transactions, Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:href="pre-20241231.xsd#pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:to="lab_pre_IncreaseDecreaseThroughVestingOfShareBasedPaymentTransactionsEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfVotesPerShare_a59554f5-dcda-4aa0-b8be-3610d70460b7_terseLabel_en-US" xlink:label="lab_pre_NumberOfVotesPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of votes per share</link:label>
    <link:label id="lab_pre_NumberOfVotesPerShare_label_en-US" xlink:label="lab_pre_NumberOfVotesPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Votes Per Share</link:label>
    <link:label id="lab_pre_NumberOfVotesPerShare_documentation_en-US" xlink:label="lab_pre_NumberOfVotesPerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Votes Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfVotesPerShare" xlink:href="pre-20241231.xsd#pre_NumberOfVotesPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfVotesPerShare" xlink:to="lab_pre_NumberOfVotesPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_35bfea0f-ab97-4f12-8d1a-f49d799cf72d_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Loss)/earnings for the purpose of diluted earnings/(loss) per share being net loss attributable to equity shareholders of the Company, from the discontinued operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from discontinued operations attributable to ordinary equity holders of parent entity, used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:to="lab_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaturityDomain_37cff1ba-0fcc-48c9-abc2-7e316d9c42cd_terseLabel_en-US" xlink:label="lab_ifrs-full_MaturityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturity [domain]</link:label>
    <link:label id="lab_ifrs-full_MaturityDomain_label_en-US" xlink:label="lab_ifrs-full_MaturityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaturityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityDomain" xlink:to="lab_ifrs-full_MaturityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain_566752bb-1169-4bda-90a1-ce6fbb6c71f2_terseLabel_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [domain]</link:label>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain_label_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:to="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_ef843c63-f526-4bcd-b5ca-f78183ed4b98_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [text block]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_faaf0295-d348-4dbe-961f-fb74babaf1ac_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_47f8f5f3-33e6-4355-a49a-23fd2ceb2cf6_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFinStmtErrorCorrectionFlag_c4903530-9aab-4f79-a011-015073257f5f_terseLabel_en-US" xlink:label="lab_dei_DocumentFinStmtErrorCorrectionFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Financial Statement Error Correction</link:label>
    <link:label id="lab_dei_DocumentFinStmtErrorCorrectionFlag_label_en-US" xlink:label="lab_dei_DocumentFinStmtErrorCorrectionFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFinStmtErrorCorrectionFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFinStmtErrorCorrectionFlag" xlink:to="lab_dei_DocumentFinStmtErrorCorrectionFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_fbc5e3c6-7b65-4a57-a221-50f91af00992_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk free interest rate, share options granted</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk free interest rate, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets_a2f2be32-3c72-42cb-b9c8-4782b49da24c_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, property, plant and equipment including right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpectedCreditLossRate_3256d188-3686-4c17-a99a-f9f792e20994_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected credit loss rate</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossRate_label_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected credit loss rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedCreditLossRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedCreditLossRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedCreditLossRate" xlink:to="lab_ifrs-full_ExpectedCreditLossRate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_NumberOfTreasurySharesCancelledOrRetired_1a8b0b0d-5775-4cd7-92bb-22b9017e1dcb_negatedLabel_en-US" xlink:label="lab_pre_NumberOfTreasurySharesCancelledOrRetired" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Number of cancellation and retirement of repurchased shares (in shares)</link:label>
    <link:label id="lab_pre_NumberOfTreasurySharesCancelledOrRetired_label_en-US" xlink:label="lab_pre_NumberOfTreasurySharesCancelledOrRetired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Treasury Shares Cancelled Or Retired</link:label>
    <link:label id="lab_pre_NumberOfTreasurySharesCancelledOrRetired_documentation_en-US" xlink:label="lab_pre_NumberOfTreasurySharesCancelledOrRetired" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Treasury Shares Cancelled Or Retired</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_NumberOfTreasurySharesCancelledOrRetired" xlink:href="pre-20241231.xsd#pre_NumberOfTreasurySharesCancelledOrRetired"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_NumberOfTreasurySharesCancelledOrRetired" xlink:to="lab_pre_NumberOfTreasurySharesCancelledOrRetired" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_FinancialAssetsAtAmortizedCostAbstract_27c57be4-4d0a-4cf1-9e5c-2802fc512222_terseLabel_en-US" xlink:label="lab_pre_FinancialAssetsAtAmortizedCostAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Assets At Amortized Cost [Abstract]</link:label>
    <link:label id="lab_pre_FinancialAssetsAtAmortizedCostAbstract_label_en-US" xlink:label="lab_pre_FinancialAssetsAtAmortizedCostAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets At Amortized Cost [Abstract]</link:label>
    <link:label id="lab_pre_FinancialAssetsAtAmortizedCostAbstract_documentation_en-US" xlink:label="lab_pre_FinancialAssetsAtAmortizedCostAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Assets At Amortized Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_FinancialAssetsAtAmortizedCostAbstract" xlink:href="pre-20241231.xsd#pre_FinancialAssetsAtAmortizedCostAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_FinancialAssetsAtAmortizedCostAbstract" xlink:to="lab_pre_FinancialAssetsAtAmortizedCostAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfExpensesByNatureTableLineItems_8cc582ee-45f3-4196-b43e-0df83ff77241_terseLabel_en-US" xlink:label="lab_pre_ScheduleOfExpensesByNatureTableLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule Of Expenses By Nature Table [Line Items]</link:label>
    <link:label id="lab_pre_ScheduleOfExpensesByNatureTableLineItems_label_en-US" xlink:label="lab_pre_ScheduleOfExpensesByNatureTableLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ScheduleOfExpensesByNatureTable [Line Items]</link:label>
    <link:label id="lab_pre_ScheduleOfExpensesByNatureTableLineItems_documentation_en-US" xlink:label="lab_pre_ScheduleOfExpensesByNatureTableLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ScheduleOfExpensesByNatureTable [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfExpensesByNatureTableLineItems" xlink:href="pre-20241231.xsd#pre_ScheduleOfExpensesByNatureTableLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfExpensesByNatureTableLineItems" xlink:to="lab_pre_ScheduleOfExpensesByNatureTableLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations_85ba705a-5d98-4955-992b-a3b22379bd15_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Income tax expense</link:label>
    <link:label id="lab_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax expense (income) relating to profit (loss) from ordinary activities of discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations" xlink:to="lab_ifrs-full_TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory_0c79abef-655b-4dd9-94a6-c576402d35d7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related parties</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of related party [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_8281396b-770c-4554-be57-ec84c03cf155_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ReverseRecapitalizationMember_55b3238c-f899-429c-bd20-9e227ade4652_terseLabel_en-US" xlink:label="lab_pre_ReverseRecapitalizationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse Recapitalization</link:label>
    <link:label id="lab_pre_ReverseRecapitalizationMember_label_en-US" xlink:label="lab_pre_ReverseRecapitalizationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Recapitalization [Member]</link:label>
    <link:label id="lab_pre_ReverseRecapitalizationMember_documentation_en-US" xlink:label="lab_pre_ReverseRecapitalizationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reverse Recapitalization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ReverseRecapitalizationMember" xlink:href="pre-20241231.xsd#pre_ReverseRecapitalizationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ReverseRecapitalizationMember" xlink:to="lab_pre_ReverseRecapitalizationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_EuropaPartnersHoldingsLimitedMember_45c4ddd5-6bb5-4811-8672-ba6a0c5fa49f_terseLabel_en-US" xlink:label="lab_pre_EuropaPartnersHoldingsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Europa Partners Holdings Limited</link:label>
    <link:label id="lab_pre_EuropaPartnersHoldingsLimitedMember_label_en-US" xlink:label="lab_pre_EuropaPartnersHoldingsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Europa Partners Holdings Limited [Member]</link:label>
    <link:label id="lab_pre_EuropaPartnersHoldingsLimitedMember_documentation_en-US" xlink:label="lab_pre_EuropaPartnersHoldingsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Europa Partners Holdings Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_EuropaPartnersHoldingsLimitedMember" xlink:href="pre-20241231.xsd#pre_EuropaPartnersHoldingsLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_EuropaPartnersHoldingsLimitedMember" xlink:to="lab_pre_EuropaPartnersHoldingsLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_586b039c-4b32-4edc-865b-a29a1d172b2d_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sales of laboratory testing kit</link:label>
    <link:label id="lab_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from sale of goods, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:to="lab_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RevenueFromServicesMember_a1b9362b-43fb-4a52-ae37-3265a5a01da8_terseLabel_en-US" xlink:label="lab_pre_RevenueFromServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue from service</link:label>
    <link:label id="lab_pre_RevenueFromServicesMember_label_en-US" xlink:label="lab_pre_RevenueFromServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue From Services [Member]</link:label>
    <link:label id="lab_pre_RevenueFromServicesMember_documentation_en-US" xlink:label="lab_pre_RevenueFromServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue From Services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RevenueFromServicesMember" xlink:href="pre-20241231.xsd#pre_RevenueFromServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RevenueFromServicesMember" xlink:to="lab_pre_RevenueFromServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LitigationAbstract_label_en-US" xlink:label="lab_pre_LitigationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Litigation [Abstract]</link:label>
    <link:label id="lab_pre_LitigationAbstract_documentation_en-US" xlink:label="lab_pre_LitigationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Litigation [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LitigationAbstract" xlink:href="pre-20241231.xsd#pre_LitigationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LitigationAbstract" xlink:to="lab_pre_LitigationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent_c073459b-274b-4084-92bc-160d698d364c_terseLabel_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other receivables, deposits and prepayments</link:label>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent_label_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits Prepayments And Other Receivables Current</link:label>
    <link:label id="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent_documentation_en-US" xlink:label="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposits Prepayments And Other Receivables Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DepositsPrepaymentsAndOtherReceivablesCurrent" xlink:href="pre-20241231.xsd#pre_DepositsPrepaymentsAndOtherReceivablesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DepositsPrepaymentsAndOtherReceivablesCurrent" xlink:to="lab_pre_DepositsPrepaymentsAndOtherReceivablesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentAdvancesToSuppliers_a277504e-6c85-4939-8309-8952b21c239c_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentAdvancesToSuppliers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other receivables</link:label>
    <link:label id="lab_ifrs-full_CurrentAdvancesToSuppliers_label_en-US" xlink:label="lab_ifrs-full_CurrentAdvancesToSuppliers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current advances to suppliers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAdvancesToSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAdvancesToSuppliers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAdvancesToSuppliers" xlink:to="lab_ifrs-full_CurrentAdvancesToSuppliers" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_RestructuringChargesImpairmentOfGoodwillMember_85dc2b14-77c8-40ff-82d7-6b9261ed9507_terseLabel_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentOfGoodwillMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Of Goodwill [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesImpairmentOfGoodwillMember_label_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentOfGoodwillMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Of Goodwill [Member]</link:label>
    <link:label id="lab_pre_RestructuringChargesImpairmentOfGoodwillMember_documentation_en-US" xlink:label="lab_pre_RestructuringChargesImpairmentOfGoodwillMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Charges Impairment Of Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_RestructuringChargesImpairmentOfGoodwillMember" xlink:href="pre-20241231.xsd#pre_RestructuringChargesImpairmentOfGoodwillMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_RestructuringChargesImpairmentOfGoodwillMember" xlink:to="lab_pre_RestructuringChargesImpairmentOfGoodwillMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities_eef79921-8fe4-421e-91da-7630943f6743_negatedLabel_en-US" xlink:label="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Decrease Through Payment Of Capital Element Lease Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Payment Of Capital Element Lease Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:label id="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities_documentation_en-US" xlink:label="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Payment Of Capital Element Lease Liabilities Liabilities Arising From Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:href="pre-20241231.xsd#pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_pre_DecreaseThroughPaymentOfCapitalElementLeaseLiabilitiesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock_37811ac5-ba36-4999-b4eb-c08f714337ed_verboseLabel_en-US" xlink:label="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of analysis of expense items in relation to leases</link:label>
    <link:label id="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock_label_en-US" xlink:label="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Analysis Of Expense Items In Relation To Leases [Table Text Block]</link:label>
    <link:label id="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock_documentation_en-US" xlink:label="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule Of Analysis Of Expense Items In Relation To Leases</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock" xlink:href="pre-20241231.xsd#pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock" xlink:to="lab_pre_ScheduleOfAnalysisOfExpenseItemsInRelationToLeasesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses_4c784356-b8eb-4eba-878d-0f7a9f6117b9_terseLabel_en-US" xlink:label="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Decrease (increase) in inventories</link:label>
    <link:label id="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses_label_en-US" xlink:label="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments For Decrease (Increase) In Deferred Expenses</link:label>
    <link:label id="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses_documentation_en-US" xlink:label="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments For Decrease (Increase) In Deferred Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses" xlink:href="pre-20241231.xsd#pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses" xlink:to="lab_pre_AdjustmentsForDecreaseIncreaseInDeferredExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_db602362-2102-4eb6-a7ce-aae5e6e7745d_negatedLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TopOfRangeMember_5214e710-a5b0-4351-92d5-53131bb32451_terseLabel_en-US" xlink:label="lab_ifrs-full_TopOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Top of range</link:label>
    <link:label id="lab_ifrs-full_TopOfRangeMember_label_en-US" xlink:label="lab_ifrs-full_TopOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Top of range [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TopOfRangeMember" xlink:to="lab_ifrs-full_TopOfRangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentLeaseLiabilities_e8ae4f62-4865-4d1a-b2a9-5274c4c5985f_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current lease liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLeaseLiabilities" xlink:to="lab_ifrs-full_CurrentLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfTreasuryShares_7414e098-4935-4da1-ba5c-31e7c621d3fa_terseLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfTreasuryShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase of treasury shares</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfTreasuryShares_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfTreasuryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of treasury shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfTreasuryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfTreasuryShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfTreasuryShares" xlink:to="lab_ifrs-full_PurchaseOfTreasuryShares" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_AmountsDueFromRelatedCompaniesMember_f8c411a8-3341-4389-a3b3-7da2fdf71674_terseLabel_en-US" xlink:label="lab_pre_AmountsDueFromRelatedCompaniesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts Due From Related Companies [Member]</link:label>
    <link:label id="lab_pre_AmountsDueFromRelatedCompaniesMember_label_en-US" xlink:label="lab_pre_AmountsDueFromRelatedCompaniesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts Due From Related Companies [Member]</link:label>
    <link:label id="lab_pre_AmountsDueFromRelatedCompaniesMember_documentation_en-US" xlink:label="lab_pre_AmountsDueFromRelatedCompaniesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amounts Due From Related Companies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_AmountsDueFromRelatedCompaniesMember" xlink:href="pre-20241231.xsd#pre_AmountsDueFromRelatedCompaniesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_AmountsDueFromRelatedCompaniesMember" xlink:to="lab_pre_AmountsDueFromRelatedCompaniesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TradeReceivablesPledgedMember_d8ce44f9-e191-45ff-83f2-eb57712f1fde_terseLabel_en-US" xlink:label="lab_pre_TradeReceivablesPledgedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade receivables pledged</link:label>
    <link:label id="lab_pre_TradeReceivablesPledgedMember_label_en-US" xlink:label="lab_pre_TradeReceivablesPledgedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade Receivables Pledged [Member]</link:label>
    <link:label id="lab_pre_TradeReceivablesPledgedMember_documentation_en-US" xlink:label="lab_pre_TradeReceivablesPledgedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trade Receivables Pledged</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TradeReceivablesPledgedMember" xlink:href="pre-20241231.xsd#pre_TradeReceivablesPledgedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TradeReceivablesPledgedMember" xlink:to="lab_pre_TradeReceivablesPledgedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_TrancheMember_93da0751-27b6-434e-9df7-3c63f664749d_terseLabel_en-US" xlink:label="lab_pre_TrancheMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tranche [Domain]</link:label>
    <link:label id="lab_pre_TrancheMember_label_en-US" xlink:label="lab_pre_TrancheMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tranche [Member]</link:label>
    <link:label id="lab_pre_TrancheMember_documentation_en-US" xlink:label="lab_pre_TrancheMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tranche</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_TrancheMember" xlink:href="pre-20241231.xsd#pre_TrancheMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_TrancheMember" xlink:to="lab_pre_TrancheMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_83d4a441-2910-419e-8cc3-14e7bac4d1b3_terseLabel_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [domain]</link:label>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_label_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ArrangementTypeAxis_992ee0b6-208a-4101-bb09-5ebd74ba5c2d_terseLabel_en-US" xlink:label="lab_pre_ArrangementTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Arrangement Type [Axis]</link:label>
    <link:label id="lab_pre_ArrangementTypeAxis_label_en-US" xlink:label="lab_pre_ArrangementTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Arrangement Type [Axis]</link:label>
    <link:label id="lab_pre_ArrangementTypeAxis_documentation_en-US" xlink:label="lab_pre_ArrangementTypeAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Arrangement Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ArrangementTypeAxis" xlink:href="pre-20241231.xsd#pre_ArrangementTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ArrangementTypeAxis" xlink:to="lab_pre_ArrangementTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate_4d39141a-b8e4-4a2a-8f9c-71e5b6680a2b_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interest in acquiree recognised at acquisition date</link:label>
    <link:label id="lab_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-controlling interest in acquiree recognised at acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:to="lab_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock_1331d06c-6346-4413-ba51-1eb333da0df3_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about disposals</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Changes In Ownership Interest [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Changes In Ownership Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock" xlink:to="lab_pre_DisclosureOfDetailedInformationAboutChangesInOwnershipInterestTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AuditorsRemuneration_6f81cd83-e2f4-4be3-8b95-8be8c25b009d_verboseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemuneration" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Auditor's remuneration</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemuneration_b6f14db0-eb37-4310-a01d-2a7b60caf6e1_terseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemuneration" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor's remuneration</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemuneration_label_en-US" xlink:label="lab_ifrs-full_AuditorsRemuneration" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor's remuneration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AuditorsRemuneration" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AuditorsRemuneration"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AuditorsRemuneration" xlink:to="lab_ifrs-full_AuditorsRemuneration" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_d7d87488-7754-4abe-ba5a-82b91ba6b1f1_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue (including revenue from related parties of nil, HK$60,903 for the year/period ended December 31, 2024 and 2023 respectively)</link:label>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_4b340dc6-1dbc-4d68-bfe3-650f0b290437_verboseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromContractsWithCustomers" xlink:to="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_e7c1e141-df9d-4024-843c-e251bbf72f93_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_c7e90877-4e67-4e8e-8d3e-11dcde3c935a_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through financing cash flows, liabilities arising from financing activities</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through financing cash flows, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_dc045f10-ffd3-444a-9e6d-7e1a5d9dbd75_terseLabel_en-US" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Charge for the year</link:label>
    <link:label id="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortisation, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_aa89874b-791b-420b-8831-64c7c323626b_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_f710571a-e50e-4668-8e3f-aa26b45cfe25_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interests in equity-accounted investees</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interests in other entities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate_8ad6fc4e-6459-427c-9c3c-dcbd56a66e45_terseLabel_en-US" xlink:label="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Identifiable intangible assets recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Identifiable intangible assets recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuedCapitalMember_629d2c30-16fd-4600-9228-8ad5fe57562b_terseLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share capital</link:label>
    <link:label id="lab_ifrs-full_IssuedCapitalMember_label_en-US" xlink:label="lab_ifrs-full_IssuedCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued capital [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapitalMember" xlink:to="lab_ifrs-full_IssuedCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LifetimeExpectedCreditLossesMember_68919c31-c739-464d-bc0c-1de71d36dad4_terseLabel_en-US" xlink:label="lab_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lifetime expected credit losses</link:label>
    <link:label id="lab_ifrs-full_LifetimeExpectedCreditLossesMember_label_en-US" xlink:label="lab_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lifetime expected credit losses [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LifetimeExpectedCreditLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:to="lab_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_3ca473ee-10d5-4ea0-9f93-2c33aade26b1_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of property, plant and equipment, classified as investing activities</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of property, plant and equipment, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalYearFocus_eb977684-ca12-4b85-831a-e6fd3027e33b_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalYearFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ActGenomicsHoldingsCompanyLimitedMember_a2d5ede4-16c5-4fca-8bd0-838b72dd38a4_terseLabel_en-US" xlink:label="lab_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACT Genomics Holdings Company Limited</link:label>
    <link:label id="lab_pre_ActGenomicsHoldingsCompanyLimitedMember_2a8d23ea-9aa2-4ffa-b114-828cfa019837_verboseLabel_en-US" xlink:label="lab_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Act Genomics Holdings Company Limited [Member]</link:label>
    <link:label id="lab_pre_ActGenomicsHoldingsCompanyLimitedMember_label_en-US" xlink:label="lab_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Act Genomics Holdings Company Limited [Member]</link:label>
    <link:label id="lab_pre_ActGenomicsHoldingsCompanyLimitedMember_documentation_en-US" xlink:label="lab_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Act Genomics Holdings Company Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:href="pre-20241231.xsd#pre_ActGenomicsHoldingsCompanyLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:to="lab_pre_ActGenomicsHoldingsCompanyLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates_44b1ec1b-a337-4ebf-8047-a69525c25891_terseLabel_en-US" xlink:label="lab_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued (in shares)</link:label>
    <link:label id="lab_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates_label_en-US" xlink:label="lab_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares in entity held by entity or by its subsidiaries or associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:to="lab_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_e22cd5a9-1c8c-4184-8215-1e8000f82c63_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Item that may be subsequently reclassified to profit or loss</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_87d309a1-9bb2-453b-8b01-23644c5de499_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock_b94699c1-89d1-49a2-a0ef-896f93abb473_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of detailed information about interest in joint venture and associates</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Interest In Equity Method Investments [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Interest In Equity Method Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock" xlink:to="lab_pre_DisclosureOfDetailedInformationAboutInterestInEquityMethodInvestmentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of initial application of standards or interpretations [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract" xlink:to="lab_ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_JointVenturesAxis_0f061336-72b8-4f0f-b8e0-2dabc58766aa_terseLabel_en-US" xlink:label="lab_ifrs-full_JointVenturesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint ventures [axis]</link:label>
    <link:label id="lab_ifrs-full_JointVenturesAxis_label_en-US" xlink:label="lab_ifrs-full_JointVenturesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint ventures [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_JointVenturesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_JointVenturesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_JointVenturesAxis" xlink:to="lab_ifrs-full_JointVenturesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForSharebasedPayments_d193132e-51d1-4815-9b26-76fcc20548fc_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForSharebasedPayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments for share-based payments</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForSharebasedPayments_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForSharebasedPayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for share-based payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForSharebasedPayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForSharebasedPayments" xlink:to="lab_ifrs-full_AdjustmentsForSharebasedPayments" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted_ffc5feb2-92d8-4174-ba12-6dc75a473201_terseLabel_en-US" xlink:label="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected Option Life, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted_label_en-US" xlink:label="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected Option Life, Other Equity Instruments Granted</link:label>
    <link:label id="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted_documentation_en-US" xlink:label="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expected Option Life, Other Equity Instruments Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted" xlink:href="pre-20241231.xsd#pre_ExpectedOptionLifeOtherEquityInstrumentsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted" xlink:to="lab_pre_ExpectedOptionLifeOtherEquityInstrumentsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentPrepayments_e962d553-6486-4922-a916-fdf048cd9276_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentPrepayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current prepayments</link:label>
    <link:label id="lab_ifrs-full_CurrentPrepayments_label_en-US" xlink:label="lab_ifrs-full_CurrentPrepayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current prepayments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentPrepayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentPrepayments" xlink:to="lab_ifrs-full_CurrentPrepayments" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SharesIssuedUponConversion_2c1b6f71-82f2-402e-966c-f901199b0d07_verboseLabel_en-US" xlink:label="lab_pre_SharesIssuedUponConversion" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Shares issued upon conversion (in shares)</link:label>
    <link:label id="lab_pre_SharesIssuedUponConversion_label_en-US" xlink:label="lab_pre_SharesIssuedUponConversion" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares Issued Upon Conversion</link:label>
    <link:label id="lab_pre_SharesIssuedUponConversion_documentation_en-US" xlink:label="lab_pre_SharesIssuedUponConversion" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Shares Issued Upon Conversion</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SharesIssuedUponConversion" xlink:href="pre-20241231.xsd#pre_SharesIssuedUponConversion"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SharesIssuedUponConversion" xlink:to="lab_pre_SharesIssuedUponConversion" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PercentageOfNonCumulativeDividend_6c41a7da-1f89-45ed-8e2f-6b92b3b565a7_terseLabel_en-US" xlink:label="lab_pre_PercentageOfNonCumulativeDividend" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of non-cumulative dividend (%)</link:label>
    <link:label id="lab_pre_PercentageOfNonCumulativeDividend_label_en-US" xlink:label="lab_pre_PercentageOfNonCumulativeDividend" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Non-Cumulative Dividend</link:label>
    <link:label id="lab_pre_PercentageOfNonCumulativeDividend_documentation_en-US" xlink:label="lab_pre_PercentageOfNonCumulativeDividend" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage Of Non-Cumulative Dividend</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PercentageOfNonCumulativeDividend" xlink:href="pre-20241231.xsd#pre_PercentageOfNonCumulativeDividend"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PercentageOfNonCumulativeDividend" xlink:to="lab_pre_PercentageOfNonCumulativeDividend" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_cb6f1793-3543-4379-858f-6122964b1ae9_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interests held by non-controlling interests</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interests held by non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssets_b8ef5bb2-795d-428e-9431-629d9a2563d5_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Non-current Assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssets_c565b589-573e-41e5-8f36-a2419f34ee26_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="lab_ifrs-full_NoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners_987f1792-f590-4669-8640-a907f3bad59f_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit for the year</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase through other contributions by owners, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_804ff6dd-a5a3-4899-99ae-3b88fc2a8d0b_totalLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total comprehensive expense for the year</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="lab_ifrs-full_ComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations_1c1813ac-5285-4bfa-bc9e-c50d3c097686_terseLabel_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic loss per share from continuing operations ($ per share)</link:label>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations_label_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic earnings (loss) per share from continuing operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShareFromContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" xlink:to="lab_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory_302f6d20-a3e6-4149-a4c9-69aa6188aec8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adoption of new and revised standards</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of changes in accounting policies, accounting estimates and errors [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing_072507b3-a100-4789-9c2f-1547b5dc8394_terseLabel_en-US" xlink:label="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Settlement Of The Agreement With Pipe Investors Upon Listing</link:label>
    <link:label id="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing_label_en-US" xlink:label="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Settlement Of The Agreement With Pipe Investors Upon Listing</link:label>
    <link:label id="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing_documentation_en-US" xlink:label="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Settlement Of The Agreement With Pipe Investors Upon Listing</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing" xlink:href="pre-20241231.xsd#pre_SettlementOfTheAgreementWithPipeInvestorsUponListing"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing" xlink:to="lab_pre_SettlementOfTheAgreementWithPipeInvestorsUponListing" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock_751696e9-2f9c-4133-bfe2-42c0666b1dad_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial information to the carrying amount recognized in the consolidated financial statement</link:label>
    <link:label id="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Financial Information To The Carrying Amount Recognized In The Consolidated Financial Statement [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Financial Information To The Carrying Amount Recognized In The Consolidated Financial Statement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock" xlink:to="lab_pre_DisclosureOfFinancialInformationToTheCarryingAmountRecognizedInTheConsolidatedFinancialStatementTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_3d7b8169-53c6-4c70-aba2-51215dd862c8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_VariableInterestRateTypeAxis_aea4e8fa-345a-45a6-b5bc-ffb850eed8a8_terseLabel_en-US" xlink:label="lab_pre_VariableInterestRateTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Rate Type [Axis]</link:label>
    <link:label id="lab_pre_VariableInterestRateTypeAxis_label_en-US" xlink:label="lab_pre_VariableInterestRateTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Rate Type [Axis]</link:label>
    <link:label id="lab_pre_VariableInterestRateTypeAxis_documentation_en-US" xlink:label="lab_pre_VariableInterestRateTypeAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Variable Interest Rate Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_VariableInterestRateTypeAxis" xlink:href="pre-20241231.xsd#pre_VariableInterestRateTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_VariableInterestRateTypeAxis" xlink:to="lab_pre_VariableInterestRateTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentReceivables_f7a86d90-10d3-4720-a035-e7679eaef110_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Trade and other non-current receivables</link:label>
    <link:label id="lab_ifrs-full_NoncurrentReceivables_label_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other non-current receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentReceivables" xlink:to="lab_ifrs-full_NoncurrentReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory_2f2b54f7-5092-4130-9ec0-93d989d45e06_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of revenue and non-current assets by regions</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_LossPerShareContinuingOperationsAbstract_bba70823-3ecc-4a11-8238-09120ea944c0_terseLabel_en-US" xlink:label="lab_pre_LossPerShareContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss Per Share Continuing Operations [Abstract]</link:label>
    <link:label id="lab_pre_LossPerShareContinuingOperationsAbstract_label_en-US" xlink:label="lab_pre_LossPerShareContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Per Share Continuing Operations [Abstract]</link:label>
    <link:label id="lab_pre_LossPerShareContinuingOperationsAbstract_documentation_en-US" xlink:label="lab_pre_LossPerShareContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loss Per Share Continuing Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_LossPerShareContinuingOperationsAbstract" xlink:href="pre-20241231.xsd#pre_LossPerShareContinuingOperationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_LossPerShareContinuingOperationsAbstract" xlink:to="lab_pre_LossPerShareContinuingOperationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentTransitionReport_2787c291-797d-47f9-a946-482dcf20a578_terseLabel_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Transition Report</link:label>
    <link:label id="lab_dei_DocumentTransitionReport_label_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Transition Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentTransitionReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentTransitionReport" xlink:to="lab_dei_DocumentTransitionReport" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_61f7aa1a-afc1-45c5-a4a2-931544cb6b81_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Translation reserve</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of exchange differences on translation [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:to="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables_ef6faa36-31e5-49ee-9904-7d2ecea1cc94_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross contractual amounts receivable for acquired receivables</link:label>
    <link:label id="lab_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables_label_en-US" xlink:label="lab_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross contractual amounts receivable for acquired receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables" xlink:to="lab_ifrs-full_GrossContractualAmountsReceivableForAcquiredReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_cb5f98b6-8c4f-42b0-acfe-bc2ed3de27e4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of deferred tax assets and liabilities recognized</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_4141ee75-35dd-4a54-a8b5-4ff21fb67c7e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock_8b1ab2d4-c62c-4821-8f57-9d83d32b9125_terseLabel_en-US" xlink:label="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of other operating income expense</link:label>
    <link:label id="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock_label_en-US" xlink:label="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Other Operating Income Expense [Table Text Block]</link:label>
    <link:label id="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Other Operating Income Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:to="lab_pre_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCurrentReportingStatus_217f8263-b783-4127-afdc-9a0195001949_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:label id="lab_dei_EntityCurrentReportingStatus_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus" xlink:to="lab_dei_EntityCurrentReportingStatus" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock_497e3a05-2560-42fa-8b59-182f4c17f59f_terseLabel_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrant liabilities</link:label>
    <link:label id="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock_label_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Warranty Liabilities Explanatory [Text Block]</link:label>
    <link:label id="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock_documentation_en-US" xlink:label="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure In Entirety Of Warranty Liabilities Explanatory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock" xlink:href="pre-20241231.xsd#pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock" xlink:to="lab_pre_DisclosureInEntiretyOfWarrantyLiabilitiesExplanatoryTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities_61787c01-b406-40a4-9702-ef712dc308e1_negatedLabel_en-US" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Interest paid, classified as financing activities</link:label>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest paid, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_EmployeesMember_c800662c-fea5-4cc4-97df-1476c98903c5_terseLabel_en-US" xlink:label="lab_pre_EmployeesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employees [Member]</link:label>
    <link:label id="lab_pre_EmployeesMember_label_en-US" xlink:label="lab_pre_EmployeesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employees [Member]</link:label>
    <link:label id="lab_pre_EmployeesMember_documentation_en-US" xlink:label="lab_pre_EmployeesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Employees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_EmployeesMember" xlink:href="pre-20241231.xsd#pre_EmployeesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_EmployeesMember" xlink:to="lab_pre_EmployeesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperations_4457835e-e8b2-4a4c-a979-1850448cf2b1_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) from discontinued operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperations_68ee113d-29e1-4e31-8281-b3bdb8da97fb_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) from discontinued operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperations_bee8f656-8fcd-4a81-9eef-bc25bff9abe6_netLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Profit (loss) from discontinued operations</link:label>
    <link:label id="lab_ifrs-full_ProfitLossFromDiscontinuedOperations_label_en-US" xlink:label="lab_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) from discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:to="lab_ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_d9872ffc-a621-4d30-aa22-fd2c7355eb04_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in cash and cash equivalents before effect of exchange rate changes</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in cash and cash equivalents before effect of exchange rate changes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_9d57924f-23da-45af-8e8d-96d964c58f32_totalLabel_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total consideration transferred, acquisition-date fair value</link:label>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_da464181-db86-4c36-b5e9-d8a2b833cc06_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consideration transferred</link:label>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_8435b1bc-9194-42c0-8612-8c6df2f45c39_verboseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Consideration transferred, acquisition-date fair value</link:label>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_label_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consideration transferred, acquisition-date fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:to="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument_9d7789b9-abb6-4156-830e-521e4200bd56_terseLabel_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument</link:label>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument_53703786-db7c-4fac-b6ee-356b83e4bd87_periodStartLabel_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument</link:label>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument_c32cb34d-8d72-4bc6-93ce-b6f21b27d69b_periodEndLabel_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument</link:label>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument_label_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument</link:label>
    <link:label id="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument_documentation_en-US" xlink:label="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Current Liabilities For Puttable Financial Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:href="pre-20241231.xsd#pre_CurrentLiabilitiesForPuttableFinancialInstrument"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:to="lab_pre_CurrentLiabilitiesForPuttableFinancialInstrument" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_2002cdf4-7233-43bb-891e-ffa886cf3b68_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity-settled share-based transactions</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of share-based payment arrangements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables_2fcddca2-7df1-4459-b5d9-a4214cb3b600_terseLabel_en-US" xlink:label="lab_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Best estimate at acquisition date of contractual cash flows not expected to be collected for acquired receivables</link:label>
    <link:label id="lab_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables_label_en-US" xlink:label="lab_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Best estimate at acquisition date of contractual cash flows not expected to be collected for acquired receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables" xlink:to="lab_ifrs-full_BestEstimateAtAcquisitionDateOfContractualCashFlowsNotExpectedToBeCollectedForAcquiredReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections_03572c80-9d3f-4104-8bf1-a266bad20c06_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Terminal value growth rate (%)</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Growth rate used to extrapolate cash flow projections</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:to="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PreventionSegmentMember_436861db-92ed-4fb6-b1ea-cda887d01053_terseLabel_en-US" xlink:label="lab_pre_PreventionSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prevention Segment [Member]</link:label>
    <link:label id="lab_pre_PreventionSegmentMember_label_en-US" xlink:label="lab_pre_PreventionSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prevention Segment [Member]</link:label>
    <link:label id="lab_pre_PreventionSegmentMember_documentation_en-US" xlink:label="lab_pre_PreventionSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Prevention Segment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PreventionSegmentMember" xlink:href="pre-20241231.xsd#pre_PreventionSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PreventionSegmentMember" xlink:to="lab_pre_PreventionSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pre_PreventionAndDiagnosticsMember_471c953f-3f11-4727-a12a-21239ff60635_terseLabel_en-US" xlink:label="lab_pre_PreventionAndDiagnosticsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prevention and Diagnostics [Member]</link:label>
    <link:label id="lab_pre_PreventionAndDiagnosticsMember_label_en-US" xlink:label="lab_pre_PreventionAndDiagnosticsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prevention and Diagnostics [Member]</link:label>
    <link:label id="lab_pre_PreventionAndDiagnosticsMember_documentation_en-US" xlink:label="lab_pre_PreventionAndDiagnosticsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Prevention and Diagnostics</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pre_PreventionAndDiagnosticsMember" xlink:href="pre-20241231.xsd#pre_PreventionAndDiagnosticsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pre_PreventionAndDiagnosticsMember" xlink:to="lab_pre_PreventionAndDiagnosticsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotionalAmount_a22754b1-63d1-4436-8f70-1186f746c815_verboseLabel_en-US" xlink:label="lab_ifrs-full_NotionalAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Borrowings notional amount</link:label>
    <link:label id="lab_ifrs-full_NotionalAmount_label_en-US" xlink:label="lab_ifrs-full_NotionalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notional amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotionalAmount" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotionalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotionalAmount" xlink:to="lab_ifrs-full_NotionalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxLiabilitiesCurrent_e49a7753-0881-4a87-9926-a9d09590c43a_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current tax liabilities, current</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxLiabilitiesCurrent_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax liabilities, current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:to="lab_ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
