On January 23, 2020, the IASB issued amendments to IAS 1 Presentation of Financial Statements, to clarify the classification of liabilities as current or non-current. For the purposes of non-current classification, the amendments removed the requirement for a right to defer settlement or roll over of a liability for at least twelve months to be unconditional. Instead, such a right must have substance and exist at the end of the reporting period. The amendments also clarify how a company classifies a liability that includes a counterparty conversion option. The amendments state that:

In May 2023, the IASB issued International Tax Reform—Pillar Two Model Rules, which amended IAS 12, Income Taxes, to introduce a temporary exception to the requirements to recognize and disclose information about deferred tax assets and liabilities related to Pillar Two income taxes, and targeted disclosure requirements for affected entities. The relief is effective immediately upon issuance of the amendments while the targeted disclosure requirements are effective for annual reporting periods beginning on or after January 1, 2023. The Company has applied the exception and is currently assessing the impact of the disclosure requirements on its consolidated financial statements. Based on the existing revenue thresholds applicable under the Pillar Two Model Rules, the Company will be within the scope of the rules starting with its 2025 fiscal year as gross revenues will have exceeded 750 million Euros for 2 consecutive years. As the legislation has not been enacted or substantively enacted in Canada, the Company continues to evaluate the impact of the legislation on its consolidated financial statements.

IFRS 18 - Presentation and Disclosure in Financial Statements replaces IAS 1 - Presentation of Financial Statements, which sets out presentation and disclosure requirements for financial statements. The changes, which mostly affect the income statement, include the requirement to classify income and expenses into three new categories – operating, investing and financing – and present subtotals for operating profit or loss and profit or loss before financing and income taxes. Further, operating expenses are presented directly on the face of the income statement – classified either by nature, by function, or using a mixed presentation. Expenses presented by function require more detailed disclosures about their nature.

IFRS 18 also provides enhanced guidance for aggregation and disaggregation of information in the financial statements, introduces new disclosure requirements for management-defined performance measures and eliminates classification options for interest and dividends in the statement of cash flows. IFRS 18 is effective for annual periods beginning on or after January 1, 2027. The Company is assessing the impact of IFRS 18 on the consolidated financial statements.

In May 2024, the IASB issued Amendments to the Classification and Measurement of Financial Instruments (Amendments to IFRS 9 and IFRS 7). The key changes included clarification on the recognition and derecognition date of certain financial assets and liabilities, and amended the requirements related to financial liabilities settled through electronic payment system, including an option to utilize an accounting policy for early derecognition. It also clarified how to assess the contractual cash flow characteristics of financial assets in determining whether they meet the solely payments of principal and interest criterion, including financial assets that have environmental, social and corporate governance (ESG)-linked features and other similar contingent features. The IASB also added disclosure requirements to provide additional transparency regarding equity investments designated at fair value through other comprehensive income and financial instruments with contingent features, such as those related to ESG requirements.

The Company’s management makes judgements in its process of applying the Company’s accounting policies in the preparation of its consolidated financial statements. In addition, the preparation of the financial data requires that the Company’s management makes assumptions and estimates of the impacts of uncertain future events on the carrying amounts of the Company’s assets and liabilities at the end of the reporting period, and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates as the estimation process is inherently uncertain. Estimates are reviewed on an ongoing basis based on historical experience and other factors that are considered to be relevant under the circumstances. Revisions to estimates and the resulting impacts on the carrying amounts of the Company’s assets and liabilities are accounted for prospectively.

The following is a list of the accounting estimates that the Company believes are critical, due to the degree of uncertainty regarding the estimates or assumptions involved and the magnitude of the asset, liabilities, revenue or expense being reported. Actual results may differ from these estimates.

Business combinations are accounted for using the acquisition method of accounting. The allocation of the purchase price requires estimates as to the fair value of acquired assets and liabilities. For material acquisitions, the Company engages independent appraisers to assist with the determination of the fair value of assets acquired, liabilities assumed, and goodwill, if any, based on recognized business valuation methodologies. The information necessary to measure the fair values as at the acquisition date of assets acquired and liabilities assumed requires management to make certain judgements and estimates, including but not limited to the most appropriate valuation methodology, estimates of mineral reserves and mineral resources of the assets acquired, value of resources outside life of mine plans including assumptions for market values per ounce, future production levels, future operating costs, capital expenditures, discount rates, future metal prices and long term foreign exchange rates. Changes to the preliminary measurements of assets and liabilities acquired may be retrospectively adjusted when new information is obtained until the final measurements are determined within one year of the acquisition date. The Company determined that the acquisition of Argonaut met the requirements to be accounted for as a business combination; refer to Note 6.

The Company utilizes the FVLCD methodology to calculate the recoverable value of its mineral properties. The estimated undiscounted cash flows used to assess recoverability of long-lived assets and to measure the fair value of the Company’s mining operations are derived from current life of mine plans, which are developed using short-term price forecasts reflective of the current price environment and management’s projections for long-term average metal prices. In addition to short and long-term metal price assumptions, other assumptions include estimates of other input costs; proven and probable mineral reserve estimates, including the timing and cost to develop and produce the reserves; value beyond proven and probable mineral reserve estimates in the mine plan, including the value of mineral resources outside the life of mine; estimated future closure costs; foreign exchange rates; and the use of appropriate discount rates.

In estimating undiscounted cash flows, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of undiscounted cash flows from other asset groups. The Company’s estimates of undiscounted cash flows are based on numerous assumptions and it is possible that actual cash flows may differ significantly from estimates, as actual produced reserves, metal prices, commodity-based and other costs, and closure costs are each subject to significant risks and uncertainties. During the third quarter of 2024, the Company recognized a reversal of impairment expense of $57.1 million in respect of the Young-Davidson cash-generating unit ("CGU"). (Note 9 (i))

The Company makes estimates of the quantities of proven and probable mineral reserves of its mines and the portion of mineral resources expected to be ultimately converted to mineral reserves. The estimation of quantities of mineral reserves and mineral resources is complex, requiring significant subjective assumptions that arise from the evaluation of geological, geophysical, engineering and economic data for a given ore body. This data could change over time as a result of numerous factors, including new information gained from development activities, evolving production history and a reassessment of the viability of production under different economic conditions. The Company forecasts prices of commodities, exchange rates, production costs, discount rates, and recovery rates. Changes in these inputs may change the economic status of mineral reserves and may result in mineral reserves and mineral resources being revised.

The Company uses estimated proven and probable mineral reserves, and an estimate of mineral resources as the basis for amortizing certain mineral property, plant and equipment. The physical life of these assets, and related components, may differ from the Company’s estimate, which would impact amortization expense. Plant and equipment not depleted on a unit of production basis based on recoverable ounces are depleted on a straight-line basis. Changes to estimates of the useful life and residual value may be impacted by the Company's mine plans and rate of usage of these plant and equipment.

The Company accounts for its ore stockpiles and in-process precious metals inventory using a process flow for applicable costs appropriate to the physical transformation of ore through the mining, crushing, leaching from heap leach operations, milling and gold recovery process. The Company estimates the expected ultimate recovery based on laboratory tests and ongoing analysis of leach pad kinetics in order to estimate the recoverable metals at the end of each accounting period. If the Company determines at any time that the ultimate recovery should be adjusted downward, then the Company will adjust the average carrying value of a unit of metal content in the in-process inventory and adjust upward on a prospective basis the unit cost of subsequent production. Should an upward adjustment in the average carrying value of a unit of metal result in the carrying value exceeding the realizable value of the metal, the Company would write down the carrying value to the realizable value.

The Company makes estimates of the timing and amount of expenditures required to settle the Company’s decommissioning liabilities. The principal factors that can cause expected future expenditures to change are: the construction of new processing facilities; changes in the quantities of material in reserves and a corresponding change in the life of mine plan; changing ore characteristics that ultimately impact the environment; changes in water quality that impact the extent of water treatment required; and changes in laws and regulations governing the protection of the environment. In general, as the end of the mine life nears, the reliability of expected cash flows increases, but earlier in the mine life, the estimation of a decommissioning liability is inherently more subjective.