<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001104659-23-074052</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001730896</cik>
          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>


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  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>2</amendmentNo>
      <securitiesClassTitle>CHESS Depositary Interest (CDI)</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001950246</issuerCik>
        <issuerName>MAC Copper Ltd</issuerName>
        <issuerCusip>G60409110</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>3RD FLOOR, 44 ESPLANADE ST</com:street1>
          <com:city>ST. HELIER</com:city>
          <com:stateOrCountry>Y9</com:stateOrCountry>
          <com:zipCode>JE4 9WG</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(c)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>United Super Pty Ltd in its capacity as Trustee for the Construction &amp; Building Unions Superannuation Fund</reportingPersonName>
      <citizenshipOrOrganization>C3</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>5652400</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>5652400</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>5652400</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>6.9</classPercent>
      <typeOfReportingPerson>OO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
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      <item1>
        <issuerName>MAC Copper Ltd</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>3RD FLOOR, 44 ESPLANADE, ST, ST. HELIER, JERSEY, JE4 9WG</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>5652400</amountBeneficiallyOwned>
        <classPercent>6.9</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>5652400</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>5652400</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>N</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>N</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>N</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>N</notApplicableFlag>
      </item9>
      <item10>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>United Super Pty Ltd in its capacity as Trustee for the Construction &amp; Building Unions Superannuation Fund</reportingPersonName>
      <signatureDetails>
        <signature>Shirlee Chan</signature>
        <title>Head of Investment Risk and Compliance</title>
        <date>02/05/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
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