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Significant accounting judgements and estimates
12 Months Ended
Dec. 31, 2021
Accounting Judgements And Estimates [Abstract]  
Significant accounting judgements and estimates Significant accounting judgements and estimatesThe preparation of these financial statements in conformity with IFRS requires judgements and estimates that affect the amounts reported. Those judgements and estimates concerning the future may differ from actual results. The following are the areas of accounting policy judgement and accounting estimates applied by management that most significantly affect the Company’s financial statements, including those areas of estimation uncertainty that could result in a material adjustment to the carrying amounts of assets and liabilities within the next financial year.
Areas of judgement

Uncertain tax positions

The Company’s operations involve the application of complex tax regulations in multiple international jurisdictions. Determining the tax treatment of a transaction requires the Company to apply judgement in its interpretation of the applicable tax law. These positions are not final until accepted by the relevant tax authority. The tax treatment may change based on the result of assessments or audits by the tax authorities often years after the initial filing.

The Company recognizes and records potential liabilities for uncertain tax positions based on its assessment of the amount, or range of amounts, of tax that will be due. The Company adjusts these accruals as new information becomes available. Due to the complexity and uncertainty associated with certain tax treatments, the ultimate resolution could result in a payment that is materially different from the Company’s current estimate of the tax liabilities.

Capitalization of exploration and evaluation expenditures

The application of the Company’s accounting policy for capitalization of exploration and evaluation expenditures requires judgement in determining whether the future economic benefit is likely, either through future exploitation or sale, where properties have not reached a stage which permits a reasonable assessment of the existence of reserves. The deferral policy requires management to make certain judgements about future events or circumstances, in particular whether an economically viable mine can be established. Judgements made may change if new information becomes available. If, after an expenditure is capitalized, information becomes available suggesting that the recovery of expenditure is unlikely, the amount capitalized is written off in the Consolidated Statement of Operations in the period when the new information becomes available.

Determination of control or significant influence over investees

The assessment of whether the Company has a significant influence or control over an investee requires the application of judgement when assessing factors that could give rise to a significant influence or control. Factors evaluated when making a judgement of control or significant influence over an investee include, but are not limited to, ownership percentage, representation on the board of directors, participation in the policy-making process, material transactions and contractual arrangements between the Company and the investee, interchange of managerial personnel, provision of essential technical
information and potential voting rights. In evaluating these factors, the Company determines the level of power over the investee the Company has. Changes in the Company's assessment of the factors used in determining if control or significant
influence exists over an investee would impact the accounting treatment of the investment in the investee.

Joint arrangements

The Company is party to a number of arrangements over which it has determined it does not have control. Judgement is required in determining whether joint control over these arrangements exists, which parties have joint control and whether each arrangement is a joint venture or joint operation. In assessing whether the Company has joint control, the activities of each arrangement are analysed to determine which activities most significantly affect the returns of the arrangement over its life. These activities are determined to be the relevant activities of the arrangement. If unanimous consent is required over the decisions about the relevant activities, the parties whose consent is required would have joint control over the arrangement. The judgements around which activities are considered the relevant activities of the arrangement are subject to analysis by each of the parties to the arrangement and may be interpreted differently. When performing this assessment, the Company generally considers decisions about activities such as managing the asset while it is being designed, developed and constructed, during its operating life and during the closure period. The Company may also consider other activities including, but not limited to, the approval of budgets, expansion and disposition of assets, financing, significant operating and capital expenditures, appointment of key management personnel and representation on the Board of Directors. When circumstances or contractual terms change, the Company reassesses the control group and the relevant activities of the arrangement.

If the Company has joint control over an arrangement, an assessment of whether the arrangement is a joint venture or joint operation is required. This assessment is based on whether the Company has rights to the assets, and obligations for the liabilities, relating to the arrangement or whether the Company has rights to the net assets of the arrangement. In making this determination, the Company reviews the legal form of the arrangement, the terms of the contractual arrangement and other relevant facts and circumstances. In a situation where the legal form and the terms of the contractual arrangement does not give the Company rights to the assets and obligations for the liabilities, an assessment of the other relevant facts and circumstances is required. This includes whether the activities of the arrangement are primarily designed for the provision of output to the parties and whether the parties are substantially the only source of cash flows contributing to the
arrangement. The consideration of the other relevant facts and circumstances may result in the conclusion that a joint arrangement is a joint operation. This conclusion requires judgement and is specific to each arrangement.

Sources of estimation uncertainty

COVID-19 estimation uncertainty

A global pandemic related to COVID-19 was declared by the World Health Organization in March 2020. The current and expected impacts on global commerce have been and are anticipated to continue to be far-reaching. To date, globally, there has been significant volatility in commodity prices and foreign exchange rates, restrictions on the conduct of business in many jurisdictions, including travel restrictions, and supply chain disruptions. There is significant ongoing global uncertainty surrounding COVID-19 and the extent and duration of the impact that it may have.

The areas of estimation uncertainty for the Company which may be impacted include estimates used to determine recoverable reserves and resources, estimates used to determine the recoverable amounts of long-lived assets, estimates used to determine the recoverable amounts of value-added tax receivables and estimates regarding deferred income taxes and valuation allowances. The impact of COVID-19 on the global economic environment, and the local jurisdictions in which the Company operates, could result in changes to the way the Company runs its mines. These changes could result in revenues or costs being different from the Company's expectations. This impact could be material.

Mineral reserve and resource estimates

Mineral reserves are estimates of the amount of ore that can be economically and legally extracted from the Company’s mining properties. The Company estimates its mineral reserves and mineral resources based on information compiled by appropriately qualified persons relating to the geological data on the size, depth and shape of the ore body, and requires complex geological assessments to interpret the data. The estimation of recoverable mineral reserves is based upon factors such as estimates of foreign exchange rates, commodity prices, future capital requirements, metallurgical recoveries, permitting and production costs along with geological assumptions made in estimating the size, and grade of the ore body. Changes in the mineral reserve or mineral resource estimates may impact the carrying value of mining interests, mine restoration provisions, recognition of deferred tax assets, depreciation and amortization charges and royalties receivable.

Impairment of long-lived assets

Long-lived assets are tested for impairment, or reversal of a previous impairment, if there is an indicator of impairment or a subsequent reversal. Calculating the estimated recoverable amount of cash generating units for long-lived asset requires management to make estimates and assumptions that include such factors as reserves and resources, future production levels, metallurgical recovery estimates, operating and capital costs, future metal prices and discount rates. Changes in any of these assumptions or estimates used in determining the recoverable amount could impact the analysis. Such changes could be material.

Value-added tax receivables

The Company incurs indirect taxes, including value-added tax, on purchases of goods and services at its operating mines and development projects. Indirect tax balances are recorded at their estimated recoverable amounts within current or long-term assets, net of provisions, and reflect the Company’s best estimate of their recoverability under existing tax rules in the respective jurisdictions in which they arise. Management’s assessment of recoverability considers the probable outcomes of claimed deductions and/or disputes. The provisions and balance sheet classifications made to date may be subject to change and such change may be material.

Current and deferred income taxes

The Company is periodically required to estimate the tax basis of assets and liabilities. Where applicable tax laws and regulations are either unclear or subject to varying interpretations, it is possible that changes in these estimates could occur that materially affect the amounts of deferred income tax assets and liabilities recorded in the financial statements. Changes in deferred tax assets and liabilities generally have a direct impact on earnings in the period that the changes occur.

Each period, the Company evaluates the likelihood of whether some portion or all of each deferred tax asset will not be realized. This evaluation is based on historic and future expected levels of taxable income and the associated repatriation of retained earnings, the pattern and timing of reversals of taxable temporary timing differences that give rise to deferred tax liabilities, and tax planning initiatives. Levels of future taxable income are affected by, among other things, metal prices, production costs, quantities of proven and probable gold reserves, interest rates and foreign currency exchange rates. The
availability of retained earnings for distribution depends on future levels of taxable income as well as future reclamation expenditures, capital expenditures, dividends and other uses of available cash flow.