IAMGOLD (IAG) 6-K 20 Feb 25 Current report (foreign) Financial data

Cover

Cover	12 Months Ended
	Dec. 31, 2024
Cover [Abstract]
Document Type	6-K
Entity Registrant Name	IAMGOLD Corporation
Entity Central Index Key	0001203464
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Document Period End Date	Dec. 31, 2024

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 347.5	$ 367.1
Receivables and other current assets	48.9	85.7
Inventories	271.9	266.3
Assets held for sale	0	34.6
Current assets	668.3	753.7
Non-current assets
Property, plant and equipment	4,269.4	3,496.5
Exploration and evaluation assets	79.6	14.4
Restricted cash	68.4	90.5
Inventories	153	106.5
Other assets	135.7	76.3
Non-current assets	4,706.1	3,784.2
Assets	5,374.4	4,537.9
Current liabilities
Accounts payable and accrued liabilities	264.8	317.6
Income taxes payable	62.7	5.8
Current portion of provisions	14.5	5.4
Current portion of lease liabilities	28.8	21.1
Current portion of long-term debt	1	5
Current portion of deferred revenue	151.1	240.7
Liabilities held for sale	0	5.6
Other current liabilities	27.7	29.6
Current liabilities	550.6	630.8
Non-current liabilities
Deferred income tax liabilities	14	0.7
Provisions	285.1	360.1
Lease liabilities	95.4	100.2
Long-term debt	1,027.9	825.8
Côté Gold repurchase option	0	345.3
Deferred revenue	0	10.9
Other liabilities	0.7	0
Non-current liabilities	1,423.1	1,643
Liabilities	1,973.7	2,273.8
Equity
Common shares	3,070.6	2,732.1
Contributed surplus	57.6	59.2
Retained earnings (accumulated deficit)	259.4	(538.3)
Accumulated other comprehensive income (loss)	(50.9)	(47)
Attributable to equity holders	3,336.7	2,206
Non-controlling interests	64	58.1
Equity	3,400.7	2,264.1
Contingencies and commitments
Subsequent events
Liabilities and Equity	$ 5,374.4	$ 4,537.9

CONSOLIDATED STATEMENTS OF EARN

CONSOLIDATED STATEMENTS OF EARNINGS (LOSS) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Continuing Operations:
Revenues	$ 1,633	$ 987.1
Cost of sales	(1,083.1)	(863)
Gross profit (loss)	549.9	124.1
General and administrative expenses	(48.9)	(50.8)
Exploration expenses	(21.7)	(26.3)
Impairment reversal (charge), net	455.5	0
Other income (expenses)	9.2	(47.3)
Earnings (loss) from operations	944	(0.3)
Finance costs	(70.8)	(21)
Foreign exchange gain (loss)	(1)	(12.8)
Gain on sale of Bambouk assets	34.1	109.1
Interest income, derivatives and other investment gains (losses)	70.9	53.2
Earnings (loss) before income taxes	977.2	128.2
Income tax expense	(129.4)	(30.7)
Net earnings (loss) from continuing operations	847.8	97.5
Net earnings (loss) from discontinued operations, net of income taxes	0	6.3
Net earnings (loss)	847.8	103.8
Net earnings (loss) from continuing operations attributable to:
Equity holders	819.6	88.7
Non-controlling interests	28.2	8.8
Net earnings (loss) from continuing operations	847.8	97.5
Net earnings (loss) attributable to:
Equity holders	819.6	94.3
Non-controlling interests	28.2	9.5
Net earnings (loss)	$ 847.8	$ 103.8
Weighted average number of common shares outstanding attributable to equity holders
Basic (in shares)	539.8	480.6
Diluted (in shares)	545.9	484.6
Earnings (loss) per share from continuing operations ($ per share)
Basic (in dollars per share)	$ 1.52	$ 0.18
Diluted (in dollars per share)	1.50	0.18
Earnings (loss) per share from discontinued operations ($ per share)
Basic (in dollars per share)	0	0.01
Diluted (in dollars per share)	0	0.01
Basic earnings (loss) per share (in dollars per share)	1.52	0.19
Diluted earnings (loss) per share (in dollars per share)	$ 1.50	$ 0.19

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Statement of comprehensive income [abstract]
Net earnings (loss)	$ 847.8	$ 103.8
Movement in marketable securities fair value reserve
Net unrealized change in fair value of marketable securities	3.1	(0.7)
Net realized change in fair value of marketable securities	1.2	(1.3)
Tax impact	(0.2)	0
Other comprehensive income (loss), net of income tax	4.1	(2)
Movement in cash flow hedge fair value reserve from continuing operations
Effective portion of changes in fair value of cash flow hedges	(39.7)	(1.4)
Time value of options contracts excluded from hedge relationship	4.8	(6.3)
Net change in fair value of cash flow hedges reclassified to the statements of earnings (loss)	23.8	(12.2)
Unrealized gain reclassified or adjusted from cash flow hedge reserve due to hedge de-designation	2.2	(0.2)
Tax impact	(0.1)	0.7
Other comprehensive income, net of income taxes	(9)	(19.4)
Total other comprehensive income (loss)	(4.9)	(21.4)
Net earnings (loss) and OCI	842.9	82.4
Comprehensive income (loss) attributable to:
Comprehensive income (loss) attributable to equity holders	814.7	72.9
Non-controlling interests	28.2	9.5
Net earnings (loss) and OCI	842.9	82.4
Total comprehensive income (loss) attributable to equity holders arising from:
Continuing operations	814.7	67.3
Discontinued operations	0	5.6
Comprehensive income (loss) attributable to equity holders	$ 814.7	$ 72.9

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net earnings (loss) from continuing operations	$ 847.8	$ 97.5
Adjustments for:
Depreciation expense	275	221.7
Impairment (reversal) charge	(455.5)	0
Gain on sale of Bambouk assets	(34.1)	(109.1)
Deferred revenue recognized	(235.7)	0
Income tax expense	129.4	30.7
Finance costs	70.8	21
Other non-cash items	(80.6)	(42.5)
Adjustments for cash items:
Proceeds from gold prepayment	119.3	0
Proceeds from insurance claim	27.3	0.6
Settlement of derivatives	(2.9)	23.3
Disbursements related to asset retirement obligations	(2.9)	(2)
Other	(2.1)	0
Movements in non-cash working capital items and non-current ore stockpiles	(114.4)	(14.9)
Cash from operating activities, before income taxes paid	541.4	226.3
Income taxes paid	(55.4)	(82.3)
Net cash from (used in) operating activities related to continuing operations	486	144
Net cash from (used in) operating activities related to discontinued operations	0	15.4
Net cash from (used in) operating activities	486	159.4
Investing activities
Capital expenditures for property, plant and equipment	(558.6)	(907.3)
Capitalized borrowing costs	(77.8)	(68.3)
Other investing activities	18.5	(5.3)
Net from (used in) investing activities related to continuing operations	(582.4)	(394.1)
Net cash from (used in) investing activities related to discontinued operations	0	(8.2)
Net cash from (used in) investing activities	(582.4)	(402.3)
Financing activities
Net proceeds from issuance of shares	287.5	0
Net funding from (payment to) Sumitomo Metal Mining Co. Ltd.	(332.5)	327.1
Payment of repurchase option fee	(32.7)	0
Other financing activities	(59)	(47.4)
Net cash from (used in) financing activities related to continuing operations	83.3	203.7
Net cash from (used in) financing activities related to discontinued operations	0	(2)
Net cash from (used in) financing activities	83.3	201.7
Effects of exchange rate fluctuation on cash and cash equivalents	(7)	1.3
Increase (decrease) in cash and cash equivalents - all operations	(20.1)	(39.9)
Decrease (increase) in cash and cash equivalents - held for sale	0.5	(0.8)
Increase (decrease) in cash and cash equivalents - continuing operations	(19.6)	(40.7)
Cash and cash equivalents, beginning of the year	367.1	407.8
Cash and cash equivalents, end of the year	347.5	367.1
Rosebel
Investing activities
Proceeds from sale of joint ventures	0	389.2
Bambouk
Investing activities
Proceeds from sale of joint ventures	35.5	197.6
Credit facility
Financing activities
Proceeds from credit facility	280	0
Proceeds from credit facility	(60)	(455)
Equipment loans
Financing activities
Proceeds from credit facility	$ 0	$ 379

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Total	Common shares	Contributed surplus	Retained Earnings (Deficit)	Marketable securities fair value reserve	Cash flow hedge fair value reserve	Non-controlling interests
Equity, beginning balance at Dec. 31, 2022	$ 2,206.8	$ 2,130.8	$ 2,726.3	$ 58.2	$ (632.4)	$ (43.2)	$ 21.9	$ 76
Net earnings (loss)	103.8	94.3			94.3			9.5
Other comprehensive income (loss)	(21.4)	(21.4)				(2)	(19.4)
Total comprehensive income (loss)	82.4	72.9			94.3	(2)	(19.4)	9.5
Issuance of common shares for share-based compensation	0.4	0.4	5.8	(5.4)
Share-based compensation	6.5	6.5		6.5
Net change in fair value and time value in property, plant and equipment	(4.3)	(4.3)					(4.3)
Dividends to non-controlling interests	(13.7)							(13.7)
Elimination of non-controlling interests on disposal of Rosebel and Bambouk assets	(13.7)							(13.7)
Other	(0.3)	(0.3)		(0.1)	(0.2)
Equity, ending balance at Dec. 31, 2023	2,264.1	2,206	2,732.1	59.2	(538.3)	(45.2)	(1.8)	58.1
Net earnings (loss)	847.8	819.6			819.6			28.2
Other comprehensive income (loss)	(4.9)	(4.9)				4.1	(9)
Total comprehensive income (loss)	842.9	814.7			819.6	4.1	(9)	28.2
Issuance of common shares	319.6	319.6	319.6
Issuance of flow-through common shares	4.7	4.7	4.7
Issuance of common shares for share-based compensation	6.1	6.1	14.2	(8.1)
Share-based compensation	6.2	6.2		6.2
Net change in fair value and time value in property, plant and equipment	1	1					1
Acquisition of non-controlling interests	(24.9)	(21.9)			(21.9)			(3)
Dividends to non-controlling interests	(18)							(18)
Other	(1)	0.3		0.3				(1.3)
Equity, ending balance at Dec. 31, 2024	$ 3,400.7	$ 3,336.7	$ 3,070.6	$ 57.6	$ 259.4	$ (41.1)	$ (9.8)	$ 64

CORPORATE INFORMATION AND NATUR

CORPORATE INFORMATION AND NATURE OF OPERATIONS	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Corporate Information and Nature of Operations	Corporate Information and Nature of Operations IAMGOLD Corporation (“IAMGOLD” or the "Company”) is a corporation governed by the Canada Business Corporations Act whose shares are publicly traded on the New York Stock Exchange (NYSE:IAG) and the Toronto Stock Exchange (TSX:IMG). The address of the Company’s registered office is 150 King Street West, Suite 2200, Toronto, Ontario, Canada, M5H 1J9. The Company has three operating mines: Côté Gold (Canada), Westwood (Canada) and Essakane (Burkina Faso). Côté Gold commenced production on March 31, 2024. The Company has an established portfolio of early stage and advanced exploration projects within highly prospective mining districts in Canada.

BASIS OF PREPARATION

BASIS OF PREPARATION	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Basis of Preparation	Basis of Preparation (a) Statement of compliance These consolidated financial statements of IAMGOLD and all of its subsidiaries and joint venture as at and for the years ended December 31, 2024 and 2023, have been prepared in accordance with IFRS as issued by the IASB. These consolidated financial statements were prepared on a going concern basis. The material accounting policies applied in these consolidated financial statements are presented in note 3 and have been consistently applied in each of the years presented. These consolidated financial statements of IAMGOLD were authorized for issue in accordance with a resolution of the Board of Directors on February 20, 2025. (b) Basis of measurement The consolidated financial statements have been prepared on a historical cost basis, except for items measured at fair value as discussed in note 21. (c) Basis of consolidation Subsidiaries and divisions related to significant properties of the Company are accounted for as outlined below. Name Property December 31, December 31, Type of Accounting Côté Gold division 1,2 Côté Gold mine 70% 70% Division Proportionate share IAMGOLD Essakane S.A. ("Essakane S.A.") Essakane mine (Burkina Faso) 90% 90% Subsidiary Consolidation Westwood division 1 Westwood complex (Canada) 100% 100% Division Consolidation Vanstar Resources Inc. 3 ("Vanstar") Nelligan Gold project (Canada) 100% —% Subsidiary Consolidation 1. Part of IAMGOLD Corporation. The Westwood division includes the closed Doyon mine ("Doyon"). 2. Prior to the Sumitomo Metal Mining Co. Ltd. ("SMM") financing arrangement entered into during December 2022 (note 8), the Company held a 70% interest in Côté Gold through an unincorporated joint venture with SMM (the "Côté UJV"). The Company's interest was diluted to 60.3% as part of the arrangement, however, the Company will continue to account for 70% of the interest. On September 30, 2024, the Company provided SMM with a formal irrevocable notice to repurchase the 9.7% interest of Côté Gold, and the repurchase was effected on November 30, 2024, returning the Company to a 70% interest in Côté Gold (note 8). A third party holds a 7.5% net profits interest in the mineral tenure comprising the project. 3. On February 13, 2024, the Company acquired all of the issued and outstanding common shares of Vanstar (note 5(a)). Vanstar owned a 25% interest in the Nelligan Gold project, with the remaining 75% interest owned by IAMGOLD Corporation. (i) Subsidiaries Subsidiaries are entities over which the Company has the ability to exercise control. Control of an entity is defined to exist when the Company is exposed to variable returns from involvement with the entity and has the ability to affect those returns through power over the entity. Specifically, the Company controls an entity if the Company has all of the following: power over the entity (i.e. existing rights that give the Company the current ability to direct the relevant activities of the entity); exposure, or rights, to variable returns from involvement with the entity; and the ability to use power over the entity to affect its returns. Subsidiaries are consolidated from the acquisition date, which is the date on which the Company obtains control of the acquired entity. Where the Company’s interest in a subsidiary is less than 100%, the Company recognizes a non-controlling interest. All intercompany balances, transactions, income, expenses and profits or losses have been eliminated on consolidation. (ii) Unincorporated arrangements The Company participates in unincorporated arrangements and has rights to its share of the undivided assets, liabilities, revenues and expenses of the properties, subject to the arrangements, rather than a right to a net return. All such amounts are measured in accordance with the terms of the arrangements, which is usually in proportion to the Company’s interest in the assets, liabilities, revenues and expenses of the properties. These amounts are recorded in the Company’s consolidated financial statements on the appropriate lines. (d) Functional and presentation currency The functional currency of the Company is the U.S. dollar. The presentation currency of the Company's consolidated financial statements is the U.S. dollar. Transactions denominated in foreign currencies are translated into the entity's functional currency as follows: • Monetary assets and liabilities are translated at the exchange rate in effect at the balance sheet date; • Non-monetary assets and liabilities are translated at historical exchange rates prevailing at each transaction date; • Deferred tax assets and liabilities recognized are translated at the exchange rate in effect at the balance sheet date with translation gains and losses recorded in income tax expense; and • Revenues and expenses are translated at the average exchange rates throughout the reporting period, except depreciation, which is translated at the rates of exchange applicable to the related assets, and share-based compensation expense, which is translated at the rates of exchange applicable at the date of grant of the share-based compensation. Exchange gains or losses on translation of transactions are included in the consolidated statements of earnings (loss). When a gain or loss on certain non-monetary items, such as financial assets at fair value through OCI ("FVTOCI"), is recognized in OCI, the translation differences are also recognized in OCI.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Summary of Material Accounting Policies	S ummary of Material A ccounting P olicies The accounting policies set out below have been applied consistently by the Company, for its subsidiaries, joint venture and associate in all periods presented in these consolidated financial statements. (a) Financial instruments The Company recognizes financial assets and financial liabilities on the date the Company becomes a party to the contractual provisions of the instruments. A financial asset is derecognized either when the Company has transferred substantially all the risks and rewards of ownership of the financial asset or when cash flows expire. A financial liability is derecognized when the obligation specified in the contract is discharged, cancelled or expired. Certain financial instruments are recorded at fair value in the consolidated balance sheets. Refer to note 21 on fair value measurements. (i) Non-derivative financial instruments Non-derivative financial instruments are recognized initially at fair value plus attributable transaction costs, where applicable for financial instruments not classified as fair value through profit or loss ("FVTPL"). Subsequent to initial recognition, non-derivative financial instruments are classified and measured as described below. Financial assets at FVTPL Cash and cash equivalents, restricted cash, short-term investments, bond fund investments and warrants are classified as financial assets at FVTPL and are measured at fair value. Cash equivalents are short-term investments with initial maturities of three months or less. Short-term investments have initial maturities of more than three months and less than 12 months. The unrealized gains or losses related to changes in fair value are reported in interest income, derivatives and other investment gains (losses) in the consolidated statements of earnings (loss). Amortized cost Trade and other receivables and fixed rate investments are classified as and measured at amortized cost using the effective interest rate method, less impairment losses, if any. Financial assets at FVTOCI The Company’s investments in equity marketable securities are designated as financial assets at FVTOCI and are recorded at fair value on the trade date with directly attributable transaction costs included in the recorded amount. Subsequent changes in fair value are recognized in OCI. Non-derivative financial liabilities Accounts payable, accrued liabilities, senior notes, equipment loans, and borrowings under the credit facility are accounted for at amortized cost, using the effective interest rate method. The amortization of senior notes issue costs and equipment loans transaction costs are calculated using the effective interest rate method, and the amortization of credit facility issue costs is calculated on a straight-line basis over the term of the credit facility. (ii) Non-hedge derivatives The Company may hold derivative financial instruments to hedge its risk exposure to fluctuations of other currencies compared to the U.S. dollar, and fluctuations in commodity prices such as for gold, oil and fuel. All derivative financial instruments not designated in a hedge relationship that qualify for hedge accounting are classified as financial instruments at FVTPL. Derivative financial instruments at FVTPL, including embedded derivatives requiring separation from its host contract, are recorded in the consolidated balance sheets at fair value. Changes in the estimated fair value of non-hedge derivatives at each reporting date are included in the consolidated statements of earnings (loss) as non-hedge derivative gain or loss. Embedded derivatives in financial liabilities measured at amortized cost are separated from the host contract and accounted for separately if the economic characteristics and risks of the host contract and the embedded derivative are not closely related. (iii) Hedge derivatives The Company uses derivative financial instruments to hedge its exposure to exchange rate fluctuations on foreign currency denominated revenues, operating expenses and purchases of non-financial assets and its exposure to price fluctuations of consumable purchases. The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objectives and strategies for undertaking hedge transactions. This process includes linking all derivative hedging instruments to forecasted transactions. Hedge effectiveness is assessed based on the degree to which the cash flows from the derivative contracts are expected to offset the cash flows of the underlying transaction being hedged. When a derivative is designated as a cash flow hedging instrument, the effective portion of changes in fair value is recognized in OCI, net of tax. For hedged items other than the purchase of non-financial assets, the amounts accumulated in OCI are reclassified to the consolidated statements of earnings (loss) when the underlying hedged transaction, identified at contract inception, affects profit or loss. When hedging a forecasted transaction that results in the recognition of a non-financial asset, the amounts accumulated in OCI are removed and added to the carrying amount of the non-financial asset. Any ineffective portion of a hedge relationship is recognized immediately in the consolidated statements of earnings (loss). The Company has elected to exclude the time value component of options and the forward element of forward contracts from the hedging relationships, with changes in these amounts recorded in OCI and treated as a cost of hedging. For hedged items other than the purchase of non-financial assets, the cost of hedging amounts is reclassified to the consolidated statements of earnings (loss) when the underlying hedged transaction affects profit or loss. When hedging a forecasted transaction that results in the recognition of a non-financial asset, the cost of hedging is added to the carrying amount of the non-financial asset. When derivative contracts designated as cash flow hedges are terminated, expired, sold or no longer qualify for hedge accounting, hedge accounting is discontinued prospectively. Any amounts recorded in OCI until the time the contracts do not qualify for hedge accounting remain in OCI. Amounts recognized in OCI are recognized in the consolidated statements of earnings (loss) in the period in which the underlying hedged transaction is completed. Gains or losses arising subsequent to the derivative contracts not qualifying for hedge accounting are recognized in the period incurred in the consolidated statements of earnings (loss). If the forecasted transaction is no longer expected to occur, then the amounts accumulated in OCI are reclassified to the consolidated statements of earnings (loss) immediately. (b) Inventories Finished goods and ore stockpiles are measured at the lower of weighted average production cost and net realizable value. Finished goods includes both gold doré and gold in circuit. Mine supplies are measured at the lower of average purchase cost and net realizable value. Net realizable value is calculated as the difference between the estimated selling price and estimated costs to complete processing into a saleable form plus variable selling expenses. Production costs include the cost of materials, labour, mine site production overheads and depreciation to the applicable stage of processing. Production overheads are allocated to inventory based on the normal capacity of production facilities. The cost of ore stockpiles is increased based on the related current cost of production for the period, and decreases in stockpiles are charged to cost of sales using the weighted average cost per tonne. Stockpiles are segregated between current and non-current inventories in the consolidated balance sheets based on the period of planned usage. The cost of inventory is reduced to net realizable value to reflect changes in grades, quantity or other economic factors and to reflect current intentions for the use of redundant or slow-moving items. Provisions for redundant and slow-moving supplies inventory are made by reference to specific items of inventory. The Company reverses write-downs when there is a subsequent increase in net realizable value and where the inventory is still on hand. Spare parts, stand-by and servicing equipment held are generally classified as inventories. Major capital spare parts and stand-by equipment (insurance spares) are classified as a component of property, plant and equipment. (c) Property, plant and equipment Property, plant and equipment are measured at cost less accumulated depreciation and accumulated impairment charges. The initial cost of an asset comprises its purchase or construction cost, any costs directly attributable to bringing the asset to a working condition for its intended use, the initial estimate of the asset retirement obligation ("ARO"), and for qualifying assets, borrowing costs. The purchase price or the construction cost is the aggregate cash paid and the fair value of any other consideration given to acquire the asset. Gains or losses on disposal of an item of property, plant and equipment are determined by comparing the proceeds from disposal with the carrying amount of property, plant and equipment, and are recognized in the consolidated statements of earnings (loss) in other expenses. The cost of replacing part of an item of property, plant and equipment is recognized in the carrying amount of the item if it is probable that the future economic benefits embodied within the part will flow to the Company and its cost can be measured reliably. The carrying amount of the replaced part is de-recognized. Costs of the day-to-day servicing of property, plant and equipment are recognized in the consolidated statements of earnings (loss) as incurred. Property, plant and equipment presented in the consolidated balance sheets represents the capitalized expenditures related to: construction in progress, mining properties, stripping costs, and plant and equipment, including corporate assets. (i) Construction in progress Upon determination of technical feasibility and commercial viability of extracting a mineral resource, the related exploration and evaluation assets (note 3(e)) are transferred to construction in progress costs. These amounts plus all subsequent mine development costs are capitalized. Costs are not depreciated until the project is ready for use as intended by management. Mine construction costs include expenditures to develop new ore bodies, define further mineralization in existing ore bodies, and construct, install and complete infrastructure facilities. Borrowing costs are capitalized and allocated specifically to qualifying assets when funds have been borrowed, either to specifically finance a project or for general borrowings during the period of construction. Qualifying assets are defined as assets that require more than six months to be brought to the location and condition intended by management. Capitalization of borrowing costs ceases when such assets are ready for their intended use. The date of transition from construction to production accounting is based on both qualitative and quantitative criteria such as substantial physical project completion, sustained level of mining, sustained level of processing activity, and passage of a reasonable period of time. Upon completion of mine construction activities (based on the determination of the commencement of production), costs are reclassified from construction in progress assets into the appropriate categories of property, plant and equipment. Revenue from sales occurring from all production, including production from the commissioning stage, is recorded in the consolidated statements of earnings (loss). (ii) Mining properties Capitalized costs for evaluation on or adjacent to sites where the Company has mineral deposits, are classified as mining properties within property, plant and equipment. (iii) Stripping costs Costs associated with stripping activities in an open pit mine are expensed within cost of sales unless the stripping activity can be shown to improve access to further quantities of ore that will be mined in future periods, in which case, the stripping costs are capitalized to mining properties within property, plant and equipment. Furthermore, stripping costs are capitalized to inventory to the extent that the benefits of the stripping activity relate to gold production inventories or ore stockpiles. (iv) Plant and equipment Plant and equipment located at corporate locations includes the following categories of assets: furniture and equipment, computer equipment, software, scientific instruments and equipment, vehicles and leasehold improvements and at the mine site includes land and buildings, plant equipment, capital spares, and other equipment. (d) Depreciation Effective from the point an asset is available for its intended use, property, plant and equipment are depreciated using either the straight-line or units-of-production methods over the shorter of the estimated economic life of the asset or the mining operation. Depreciation is determined based on the method which best represents the use of the assets. The reserve and resource estimates for each mining operation are the prime determinants of the life of a mine. In general, when the useful life of property, plant and equipment is akin to the life of the mining operation and the ore body's mineralization is reasonably well defined, the asset is depreciated on a units-of-production basis over its proven and probable mineral reserves. Non-reserve material may be included in depreciation calculations in limited circumstances where there is a high degree of confidence in its economic extraction. The Company evaluates the estimate of mineral reserves and resources at least on an annual basis and adjusts the units-of-production method calculation prospectively. When property, plant and equipment are depreciated on a straight-line basis, the useful life of the mining operation is determined based on the most recent life of mine (“LOM”) plan. LOM plans are typically developed annually and are based on management’s current best estimates of optimized mine and processing plans, future operating costs and the assessment of capital expenditures of a mine site. Estimated useful lives normally vary from three Amounts related to expected economic conversions of resources to reserves recorded in an asset acquisition or business combination are not depreciated until resources are converted into reserves. Amounts related to capitalized costs of exploration and evaluation assets and construction in progress are not depreciated as the assets are not available for use. Capitalized stripping costs are depreciated over the reserves that directly benefit from the specific stripping activity using the units-of-production method. Capitalized borrowing costs are depreciated over the useful life of the related asset. Residual values, useful lives and depreciation methods are reviewed at least annually and adjusted if appropriate. The impact of changes to the estimated useful lives, depreciation method or residual values is accounted for prospectively. (e) Mineral exploration and evaluation expenditures Exploration activities relate to the collection of exploration data which consists of geological, geophysical, geochemical, sampling, drilling, trenching, analytical test work, assaying, mineralogical, metallurgical, and other similar information that is derived from activities undertaken to locate, investigate, define or delineate a mineral prospect or mineral deposit. Mineral exploration costs are expensed as incurred. Evaluation costs are capitalized and relate to activities to evaluate the potential technical feasibility and commercial viability of extracting a mineral resource on sites where the Company does not have mineral deposits already being mined or constructed. The technical feasibility and commercial viability is based on management’s evaluation of the geological properties of an ore body based on information obtained through evaluation activities, including metallurgical testing, resource and reserve estimates and economic assessment whether the ore body can be mined economically. Exploration properties acquired through asset acquisitions are also recognized as exploration and evaluation assets. (f) Assets and liabilities held for sale and discontinued operations Non-current assets and disposal groups are classified as held for sale if their carrying value will be recovered principally through a sale transaction rather than through continuing use. The criteria for held for sale classification are regarded as met only when the sale is highly probable and the asset or disposal group is available for immediate sale in its present condition. Actions required to complete the sale should indicate that it is unlikely that significant changes to the sale will be made or that the decision to sell will be withdrawn. Management must be committed to the plan to sell the asset or disposal group and the sale expected to be completed within one year from the date of the classification. Non-current assets and disposal groups classified as held for sale are measured at the lower of their carrying amount and fair value less costs to sell ("FVLCS"). If the FVLCS is lower than the carrying amount, an impairment loss is recognized in the consolidated statements of earnings (loss). Non-current assets are not depreciated or amortized once classified as held for sale. Equity accounting ceases for the investment in associate and incorporated joint venture once classified as held for sale. Assets and liabilities classified as held for sale are presented separately as current items in the Company's consolidated balance sheets. A disposal group qualifies as a discontinued operation if it is a component of the Company that either has been disposed of, or is classified as held for sale, and: (i) represents a separate major line of business or geographical area of operations; (ii) is part of a single coordinated plan to dispose of a separate major line of business or geographical area of operations; or (iii) is a subsidiary acquired exclusively with a view to resale. A component of the Company comprises an operation and cash flows that can be clearly distinguished, operationally and for financial reporting purposes, from the rest of the Company. Further, a discontinued operation must be a component of the Company that was a cash generating unit ("CGU") while being held for use. Discontinued operations are excluded from the results of continuing operations and are presented as a single amount as profit or loss after tax from discontinued operations in the consolidated statements of earnings (loss). (g) Impairment and reversal of impairment (i) Financial assets The Company recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost. At each reporting date, the Company measures the loss allowance for the financial asset at an amount equal to the lifetime expected credit losses if the credit risk on the financial asset has increased significantly since initial recognition. If at the reporting date, the credit risk on the financial asset has not increased significantly since initial recognition, the Company measures the loss allowance for the financial asset at an amount equal to twelve month expected credit losses. Impairment losses on financial assets carried at amortized cost are reversed in subsequent periods if the financial asset is no longer credit-impaired and the improvement can be related objectively to an event occurring after the impairment was recognized. (ii) Non-financial assets The carrying amounts of the Company’s non-current assets, including property, plant and equipment and exploration and evaluation assets, are reviewed at each reporting date to determine whether there is any indication of impairment. If any such indicator exists, the Company performs an impairment test. An impairment test requires the Company to determine the recoverable amount of an asset or group of assets. For non-current assets, including property, plant and equipment and exploration and evaluation assets, the recoverable amount is determined for an individual asset, unless the asset does not generate cash inflows that are largely independent of those from other assets or groups of assets. If this is the case, the individual assets are grouped together into a CGU for impairment testing purposes. A CGU for impairment testing is typically considered to be an individual mine site or a development project. The recoverable amount is determined as the higher of the CGU’s fair value less costs of disposal ("FVLCD") and value in use (“VIU”). If the carrying amount of the asset or CGU exceeds its recoverable amount, an impairment charge is recorded to the other long-lived assets in the CGU on a pro rata basis. An assessment is made at each reporting date to determine whether there is an indication that previously recognized impairment losses may no longer exist or may be reduced. If it has been determined that the impairment has reversed, the carrying amount of the asset is increased to its recoverable amount to a maximum of the carrying amount that would have been determined had no impairment charge been recognized in prior periods. An impairment charge reversal is recognized in the consolidated statements of earnings (loss). Impairment charges recognized in relation to goodwill are not reversed for subsequent increases in a CGU’s recoverable amount. In the absence of market related comparative information, the FVLCD is generally determined based on the present value of estimated future cash flows from each long-lived asset or CGU. The significant assumptions used in determining the FVLCD for the CGUs are typically LOM production profiles, long-term commodity prices, reserves and resources, discount rates, foreign exchange rates, values of known reserves and resources not included in the LOM (i.e. un-modeled mineralization), operating and capital expenditures, net asset value (“NAV”) multiples and expected commencement of production for exploration and evaluation and development projects. Management’s assumptions and estimates of future cash flows are subject to risks and uncertainties, particularly in market conditions where higher volatility exists, and may be partially or totally outside of the Company's control. Therefore, it is reasonably possible that changes could occur with evolving economic conditions, which may affect the recoverability of the Company’s long-lived assets. If the Company fails to achieve its valuation assumptions or if any of its long-lived assets or CGUs experience a decline in their fair value, this may result in an impairment charge in future periods, which would reduce the Company's earnings. (h) Asset retirement obligations The Company records legal and constructive obligations required to restore locations in the period in which the obligation is incurred with a corresponding increase in the carrying amount of the related property, plant and equipment, and if the effect of discounting is material, measures it at its present value. For locations where mining activities have ceased, changes to obligations are charged directly to the consolidated statements of earnings (loss). The obligation is generally considered to have been incurred when mine assets are constructed or the ground environment is disturbed at the production location. The discounted liability is adjusted at the end of each period to reflect the passage of time, based on a risk-free discount rate that reflects current market assessments, and changes in the estimated future cash flows underlying the obligation. The Company also estimates the timing of the outlays, which are subject to change depending on continued operation or newly discovered reserves. The periodic unwinding of the discount is recognized in earnings as accretion expense included in finance costs in the consolidated statements of earnings (loss). Additional disturbances or changes in restoration costs or in discount rates are recognized as changes to the corresponding assets and ARO when they occur. Environmental costs at operating mines, as well as changes to estimated costs and discount rates for closed mines, are charged to earnings in the period during which they occur. (i) Other provisions Provisions are recognized when a legal or constructive present obligation exists as a result of a past event, for which it is probable that an outflow of economic resources will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation. Provisions are reviewed at the end of each reporting period and adjusted to reflect management's current best estimate of the expenditure required to settle the present obligation at the end of the reporting period. If it is no longer probable that an outflow of resources embodying economic benefits will be required to settle the obligation, the provision is reversed. Provisions are reduced by actual expenditures in respect of the obligation for which the provision was originally recognized. Certain conditions may exist as of the date of the consolidated financial statements, which may result in a loss to the Company, but which will only be resolved when one or more future events will occur or fail to occur. If the assessment of a contingency determines that a loss is probable, and the amount can be reliably estimated, then a provision is recorded. When a contingent loss is not probable but is reasonably possible, then the contingent liability is disclosed in the consolidated financial statements. (j) Income taxes (i) Current income tax Current income tax assets and liabilities for the current and prior periods are measured at the amount expected to be recovered from or paid to the taxation authorities. The tax rates and tax laws used to compute the amount are those that are enacted or substantively enacted by the balance sheet date. Current income tax assets and current income tax liabilities are only offset if a legally enforceable right exists to set off the amounts, and the Company intends to settle on a net basis or to realize the asset and settle the liability simultaneously. Current income taxes related to items recognized directly in equity are recognized directly in equity. (ii) Deferred income tax Deferred income tax is recognized in respect of temporary differences between the carrying amounts of assets and liabilities in the consolidated balance sheets and tax bases. Deferred income tax liabilities are recognized for all taxable temporary differences, except: • Where the deferred income tax liability arises from the initial recognition of goodwill or of an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither accounting profit nor taxable profit (tax loss); and • In respect of taxable temporary differences associated with investments in subsidiaries, associate and joint venture, where the timing of the reversal of the temporary differences can be controlled by the parent or the joint venture and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that taxable profit will be available against which the deductible temporary differences, the carry forward of unused tax credits and unused tax losses can be used, except: • W hen the temporary difference results from the initial recognition of an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither accounting profit nor taxable profit (tax loss); and • In respect of deductible temporary differences associated with investments in subsidiaries, associate and joint venture, deferred income tax assets are recognized only to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be used. The carrying amount of deferred income tax assets is reviewed at each balance sheet date and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred income tax asset to be used. Unrecognized deferred income tax assets are reassessed at each balance sheet date and are recognized to the extent that it has become probable that future taxable profit will be available to allow the deferred tax asset to be recovered. A translation gain or loss may arise for deferred income tax purposes where the local tax currency is not the same as the functional currency for non-monetary assets. A deferred tax asset or liability is recognized on the difference between the carrying amount for accounting purposes (which reflects the historical cost in the entity’s functional currency) and the underlying tax basis (which reflects the current local tax cost, translated into the functional currency using the current foreign exchange rate). The translation gain or loss is recorded in income taxes in the consolidated statements of earnings (loss). Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply to the year when the asset is expected to be realized or the liability settled, based on tax rates (and tax laws) that have been enacted or substantively enacted at the balance sheet date. Deferred income taxes related to items recognized directly in equity are recognized directly in equity. Deferred income tax assets and deferred income tax liabilities are offset, if a legally enforceable right exists to set off current income tax assets against current income tax liabilities and the deferred income taxes relate to the same taxable entity and the same taxation authority. There is no certainty that future income tax rates will be consistent with current estimates. (k) Earnings (loss) per share The Company presents basic and diluted earnings (loss) per share data for its common shares. Basic earnings (loss) per share are calculated by dividing earnings (loss) attributable to equity holders by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated using the treasury method for stock options and warrants, and the if converted method for equity settled share units. The treasury method assumes that outstanding stock options and warrants with an average exercise price below the market price of the underlying shares are assumed to be exercised and the assumed proceeds are used to purchase common shares of the Company from treasury at the average market price of the common shares for the period. The if converted method assumes that all equity settled share units have been converted in determining diluted earnings (loss) per share if they are in-the-money, except where such conversion would be anti-dilutive. (l) Share-based compensation The Company has the following share-based compensation plans with related costs included in general and administrative expenses. (i) Share incentive plan The Company has a number of equity-settled share-based compensation plans in respect to its directors and employees. Share-based compensation costs are measured based on the grant date fair value of the equity-settled instruments and recognized upon grant date over the related service period in the consolidated statements of earnings (loss) and credited to contributed surplus within shareholders’ equity. The Company uses the graded vesting method for attributing share option expense over the vesting period. The grant date fair value is based on the underlying market price of the common shares of the Company taking into account the terms and conditions upon which those equity-settled instruments were granted. The fair value of equity-settled instruments granted is estimated using the Black-Scholes model or other appropriate method and assumptions at grant date. Equity-settled awards are not re-measured subsequent to the initial grant date. Determination of the grant date fair value requires management estimates such as risk-free interest rate, volatility and weighted average expected life. Share option expense incorporates an expected forfeiture rate which is estimated based on historical forfeiture rates and expectati

ADOPTION OF NEW ACCOUNTING STAN

ADOPTION OF NEW ACCOUNTING STANDARDS AND NEW ACCOUNINTG STANDARDS ISSUED BUT NOT YET EFFECTIVE	12 Months Ended
	Dec. 31, 2024
Accounting Policies, Changes In Accounting Estimates And Errors [Abstract]
Adoption of New Accounting Standards and New Accounting Standards Issued but Not Yet Effective	Adoption of New Accounting Standards and New Accounting Standards Issued but Not Yet Effective (a) Adoption of new accounting standards The following new accounting pronouncements are effective for annual periods beginning on or after January 1, 2024 and have been incorporated into the consolidated financial statements: • Classification of Liabilities as Current or Non-current (Amendments to IAS 1) • Lease Liability in a Sale and Leaseback (Amendments to IFRS 16 Leases) • Supplier Finance Arrangements (Amendments to IAS 7 and IFRS 7) The adoption of these pronouncements did not have a significant impact. (b) New accounting standards issued but not effective Certain pronouncements have been issued by the IASB that are mandatory for accounting periods after December 31, 2024: • Lack of exchangeability (Amendments to IAS 21) which is effective for periods on or after January 1, 2025. • Amendments to the Classification and Measurement of Financial Instruments (Amendments to IFRS 9 and IFRS 7) which is effective for periods on or after January 1, 2026. • Presentation and Disclosure in Financial Statements (IFRS 18) which is effective for periods on or after January 1, 2027. • Sale or Contribution of Assets Between an Investor and its Associate or Joint Venture (Amendments to IFRS 10 and IAS 28) amendments were to be applied prospectively for annual periods beginning on or after January 1, 2016, however, on December 17, 2015 the IASB decided to defer the effective date for these amendments indefinitely. Early adoption is still permitted. The Company does not intend to early adopt these standards.

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Dec. 31, 2024
Acquisition [Abstract]
Acquisitions	Acquisitions (a) Vanstar - Nelligan Project On February 13, 2024, the Company acquired all of the issued and outstanding common shares of Vanstar for consideration of approximately 12.0 million common shares of the Company. Vanstar owned a 25% interest in the Nelligan Gold Project ("Nelligan") in Quebec, Canada. With the acquisition of Vanstar complete, the Company now owns a 100% interest in Nelligan. In addition, the Company acquired a 1% NSR royalty held by Vanstar on select claims of Nelligan that were cancelled, as well as other early stage exploration properties in Northern Quebec. The total purchase price amounted to $29.6 million, which included transaction costs of $1.5 million, and was net of cash and cash equivalents acquired of $0.1 million. The transaction costs included 0.2 million common shares, with a value of $0.4 million, issued for professional services. The acquisition did not meet the IFRS definition of a business combination as the primary asset (Nelligan Gold Project) is an exploration stage property and has not identified economically recoverable ore reserves. Consequently, the transaction was recorded as an asset acquisition. The total purchase price was allocated to the assets acquired and the liabilities assumed based on the fair value of the total consideration transferred at the closing date of the acquisition. February 13, 2024 Assets acquired and liabilities assumed Exploration and evaluation assets $ 29.3 Current assets 0.3 $ 29.6 Consideration transferred Share consideration $ 28.2 Less: Cash and cash equivalents acquired (0.1) 28.1 Transaction costs 1.5 $ 29.6 (b) Euro Ressources EURO Ressources S.A. (“EURO”) is a French mining royalty and streaming company that was listed on the NYSE Euronext of Paris stock exchange under the symbol EUR. EURO's main assets are a 10% royalty from the Company on the Rosebel Gold Mine production in Suriname, a silver stream from a subsidiary of Orezone Gold Corporation, a royalty on the Paul Isnard concessions in French Guiana and marketable securities. The Company owned 90% of EURO through its wholly owned subsidiary IAMGOLD France S.A.S. ("IAMGOLD France"), until February 27, 2024 when the Company completed the acquisition of all of the outstanding common shares of EURO that IAMGOLD France did not already own through a "squeeze-out" under French law, which was approved by the Autorité des marchés financiers on January 23, 2024. The Company paid cash consideration of €3.50 per share for an aggregate consideration of €21.9 million ($23.7 million). Following the acquisition, IAMGOLD France beneficially owns and controls 62.5 million common shares, representing 100% of the outstanding EURO shares.

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	12 Months Ended
	Dec. 31, 2024
Disclosure of Non-current assets held for sale and discontinued operations [Abstract]
Discontinued Operations	Discontinued Operations Rosebel mine On January 31, 2023, the Company completed the sale of its 95% interest in the Rosebel mine to Zijin Mining Group Co. Ltd. ("Zijin"). The Company received net proceeds of $396.0 million during 2023, consisting of sales proceeds of $360.0 million, plus $39.4 million of cash held by Rosebel on January 31, 2023, less final working capital adjustments of $3.4 million. The existing royalty based on production at Rosebel, and held by Euro Ressources S.A. ("EURO"), will remain an obligation of the Company. On closing, the Company recognized a loss on disposal of $7.4 million, net of income tax, calculated as follows: January 31, 2023 Proceeds received on closing $ 360.0 Cash and cash equivalents transferred since closing 39.4 Working capital (3.4) Transaction costs (8.7) Net proceeds $ 387.3 Cash and cash equivalents $ 39.8 Receivables and other current assets 26.7 Inventories 153.7 Property, plant and equipment 446.2 Other non-current assets 10.5 Accounts payable and accrued liabilities (76.0) Provisions (103.8) Other liabilities (89.1) Net carrying amount, January 31, 2023 408.0 Non-controlling interest (13.3) Net assets attributable to IAMGOLD $ 394.7 Less: net proceeds 387.3 Loss on sale of Rosebel $ 7.4 The net earnings (loss) from discontinued operations from the Rosebel Mine, which include the results of operating activities for the year ended December 31, 2023 is as follows: Year ended December 31, 2023 1 Revenues $ 47.2 Cost of sales (23.8) Exploration expenses (0.1) Other expenses (1.3) Finance costs (0.1) Foreign exchange gain (loss) (0.2) 21.7 Income tax (8.0) Net earnings (loss) from discontinued operations before disposal $ 13.7 Loss on sale of Rosebel (7.4) Net earnings (loss) from discontinued operations $ 6.3 1. Amounts disclosed for 2023 are for the period until January 31, 2023, the date the transaction closed. Bambouk assets On December 20, 2022, the Company announced that it had entered into a definitive agreement with Managem, S.A. to sell the Company’s interest in its exploration and development projects in Senegal, Mali and Guinea (the “Bambouk assets”). Under this agreement, the Company would receive total cash payments of approximately $282.0 million as consideration for the shares and subsidiary/intercompany loans for the entities that hold the Company's 90% interest in the Boto Gold Project ("Boto") in Senegal and 100% interest in each of: i) the Diakha-Siribaya Gold Project in Mali, Karita Gold Project and associated exploration properties in Guinea, ii) the early stage exploration properties of Boto West, Senala West, Daorala, and iii) the vested interest in the Senala Option Earn-in Joint Venture also in Senegal. The total consideration of $282.0 million is subject to changes in intercompany loans associated with the continued advancement of the projects between December 20, 2022 and the closing of the respective asset sales. The Company received consent of IAMGOLD's syndicate of lenders for the sale. On April 25, 2023, the Company completed the sale of its 90% interest in the Boto Gold Project in Senegal and its 100% interest in the early-stage exploration properties of Boto West, Senegal West, and Daorala and the vested interest in the Senala Option Earn-in Joint Venture, also in Senegal ("Senegal Assets") for aggregate gross cash proceeds of $197.6 million. The remaining 10% interest in Boto was held by the Government of Senegal. The Company recognized a gain on disposal of the Senegal Assets of $109.1 million calculated as follows: 2023 Proceeds $ 197.6 Transaction costs (3.7) Net proceeds $ 193.9 Cash and cash equivalents $ 1.4 Property, plant and equipment 83.3 Other non-current assets 1.1 Accounts payable and accrued liabilities (0.6) Net carrying amount, April 25, 2023 85.2 Non-controlling interest (0.4) Net assets attributable to IAMGOLD 84.8 Less: net proceeds 193.9 Pre-tax gain on sale of Senegal Assets $ 109.1 On December 23, 2024, the Company completed the sale of its 100% interest in the Karita Gold Project and associated exploration assets in Guinea ("Guinea Assets") for aggregate gross cash proceeds of $35.5 million. The gross cash proceeds included a purchase price adjustment of $8.1 million for expenditures the Company incurred during the closing period. The Company recognized a gain on disposal of the Guinea Assets of $34.1 million calculated as follows: December 23, 2024 Proceeds on closing $ 27.4 Purchase price adjustment 8.1 Transaction costs (1.4) Net proceeds and pre-tax gain on sale of Guinea Assets $ 34.1 The definitive agreement with Managem, S.A. to sell the Company’s remaining interests in the Bambouk assets expired on December 31, 2024 and was not extended. At December 31, 2024, the remaining Bambouk assets in Mali do not meet the criteria for held-for-sale accounting in line with IFRS 5. All assets and liabilities relating to the remaining Bambouk assets have been reclassified to exploration and evaluation assets and accounts payable and accrued liabilities. December 31, 2023 Assets classified as held-for-sale Cash and cash equivalents $ 0.5 Exploration and evaluation assets 34.1 $ 34.6 Liabilities classified as held-for-sale Accounts payable and accrued liabilities $ 5.6 $ 5.6

ASSETS AND LIABILITIES HELD FOR

ASSETS AND LIABILITIES HELD FOR SALE	12 Months Ended
	Dec. 31, 2024
Asset and Liabilities Held For Sale [Abstract]
Assets and Liabilities Held for Sale	Discontinued Operations Rosebel mine On January 31, 2023, the Company completed the sale of its 95% interest in the Rosebel mine to Zijin Mining Group Co. Ltd. ("Zijin"). The Company received net proceeds of $396.0 million during 2023, consisting of sales proceeds of $360.0 million, plus $39.4 million of cash held by Rosebel on January 31, 2023, less final working capital adjustments of $3.4 million. The existing royalty based on production at Rosebel, and held by Euro Ressources S.A. ("EURO"), will remain an obligation of the Company. On closing, the Company recognized a loss on disposal of $7.4 million, net of income tax, calculated as follows: January 31, 2023 Proceeds received on closing $ 360.0 Cash and cash equivalents transferred since closing 39.4 Working capital (3.4) Transaction costs (8.7) Net proceeds $ 387.3 Cash and cash equivalents $ 39.8 Receivables and other current assets 26.7 Inventories 153.7 Property, plant and equipment 446.2 Other non-current assets 10.5 Accounts payable and accrued liabilities (76.0) Provisions (103.8) Other liabilities (89.1) Net carrying amount, January 31, 2023 408.0 Non-controlling interest (13.3) Net assets attributable to IAMGOLD $ 394.7 Less: net proceeds 387.3 Loss on sale of Rosebel $ 7.4 The net earnings (loss) from discontinued operations from the Rosebel Mine, which include the results of operating activities for the year ended December 31, 2023 is as follows: Year ended December 31, 2023 1 Revenues $ 47.2 Cost of sales (23.8) Exploration expenses (0.1) Other expenses (1.3) Finance costs (0.1) Foreign exchange gain (loss) (0.2) 21.7 Income tax (8.0) Net earnings (loss) from discontinued operations before disposal $ 13.7 Loss on sale of Rosebel (7.4) Net earnings (loss) from discontinued operations $ 6.3 1. Amounts disclosed for 2023 are for the period until January 31, 2023, the date the transaction closed. Bambouk assets On December 20, 2022, the Company announced that it had entered into a definitive agreement with Managem, S.A. to sell the Company’s interest in its exploration and development projects in Senegal, Mali and Guinea (the “Bambouk assets”). Under this agreement, the Company would receive total cash payments of approximately $282.0 million as consideration for the shares and subsidiary/intercompany loans for the entities that hold the Company's 90% interest in the Boto Gold Project ("Boto") in Senegal and 100% interest in each of: i) the Diakha-Siribaya Gold Project in Mali, Karita Gold Project and associated exploration properties in Guinea, ii) the early stage exploration properties of Boto West, Senala West, Daorala, and iii) the vested interest in the Senala Option Earn-in Joint Venture also in Senegal. The total consideration of $282.0 million is subject to changes in intercompany loans associated with the continued advancement of the projects between December 20, 2022 and the closing of the respective asset sales. The Company received consent of IAMGOLD's syndicate of lenders for the sale. On April 25, 2023, the Company completed the sale of its 90% interest in the Boto Gold Project in Senegal and its 100% interest in the early-stage exploration properties of Boto West, Senegal West, and Daorala and the vested interest in the Senala Option Earn-in Joint Venture, also in Senegal ("Senegal Assets") for aggregate gross cash proceeds of $197.6 million. The remaining 10% interest in Boto was held by the Government of Senegal. The Company recognized a gain on disposal of the Senegal Assets of $109.1 million calculated as follows: 2023 Proceeds $ 197.6 Transaction costs (3.7) Net proceeds $ 193.9 Cash and cash equivalents $ 1.4 Property, plant and equipment 83.3 Other non-current assets 1.1 Accounts payable and accrued liabilities (0.6) Net carrying amount, April 25, 2023 85.2 Non-controlling interest (0.4) Net assets attributable to IAMGOLD 84.8 Less: net proceeds 193.9 Pre-tax gain on sale of Senegal Assets $ 109.1 On December 23, 2024, the Company completed the sale of its 100% interest in the Karita Gold Project and associated exploration assets in Guinea ("Guinea Assets") for aggregate gross cash proceeds of $35.5 million. The gross cash proceeds included a purchase price adjustment of $8.1 million for expenditures the Company incurred during the closing period. The Company recognized a gain on disposal of the Guinea Assets of $34.1 million calculated as follows: December 23, 2024 Proceeds on closing $ 27.4 Purchase price adjustment 8.1 Transaction costs (1.4) Net proceeds and pre-tax gain on sale of Guinea Assets $ 34.1 The definitive agreement with Managem, S.A. to sell the Company’s remaining interests in the Bambouk assets expired on December 31, 2024 and was not extended. At December 31, 2024, the remaining Bambouk assets in Mali do not meet the criteria for held-for-sale accounting in line with IFRS 5. All assets and liabilities relating to the remaining Bambouk assets have been reclassified to exploration and evaluation assets and accounts payable and accrued liabilities. December 31, 2023 Assets classified as held-for-sale Cash and cash equivalents $ 0.5 Exploration and evaluation assets 34.1 $ 34.6 Liabilities classified as held-for-sale Accounts payable and accrued liabilities $ 5.6 $ 5.6

UNINCORPOATED ARRANGEMENT SMM F

UNINCORPOATED ARRANGEMENT SMM FUNDING ARRANGEMENT	12 Months Ended
	Dec. 31, 2024
Joint Arrangements [Abstract]
Unincorporated Arrangement and SMM Funding Arrangement	Unincorporated Arrangement and SMM Funding Arrangement The Company is a 70% partner in Côté Gold, an unincorporated joint venture (“UJV”) formed with SMM to construct and operate the Côté Gold mine. The UJV is governed by the Côté Gold Joint Venture Agreement (“UJV agreement”). The UJV agreement gives the Company and SMM interests and obligations in the underlying assets, liabilities, revenues and expenses. On December 19, 2022, the Company announced it had entered into an amendment of the UJV agreement with SMM. Under the amended UJV agreement, commencing in January 2023, SMM contributed $250.0 million of the Company's funding obligations to Côté Gold. As a result of SMM funding such amounts, the Company transferred 9.7% of its interest in Côté Gold to SMM (the "Transferred Interests"). SMM did not make any further contributions on behalf of the Company. On November 30, 2024, the Company exercised its right to repurchase the Transferred Interests ("Repurchase Option"), which returned the Company to its full 70% interest in Côté Gold. The final purchase price for the Repurchase Option was $377.7 million. The total payment of the repurchase included the aggregate amounts contributed by SMM on behalf of the Company, totaling $250.0 million, plus incremental contributions made, and less incremental gold production received by SMM based on its increased ownership, from commissioning and up to achieving Commercial Production as defined by the UJV agreement. SMM retained the net proceeds or payments corresponding to its increased ownership from the achievement of Commercial Production up to the repurchase of the Transferred Interest. The total payment of the repurchase also included the repurchase option fee accrued during 2023 of $23.7 million. Commencing in 2024, the fee was payable in cash on a quarterly basis. The amendment to the Côté Gold UJV also includes changes to the operator fee, the governance structure, including increasing the approval threshold of the Oversight Committee for annual budgets and unbudgeted expenditures above specified amounts. IAMGOLD’s rights on the Oversight Committee are maintained and IAMGOLD remains as the operator. These changes reverted after the repurchase. The repurchase option liability was accounted for under IFRS 15 and control was not deemed to have passed to SMM due to the Company’s right to exercise the Repurchase Option. As a result, the Company continued to account for a 70% interest in the assets and liabilities in the UJV as the Transferred Interest was not recorded as a sale. Up to the achievement of Commercial Production, 60.3% of revenue and expenses are proportionately consolidated and 9.7% of revenue and expenses are included in interest income, derivatives, and other investment gains (losses) (note 31) in the consolidated statements of earnings (loss), resulting in net income including 70% of the Côté Gold UJV net income. In accordance with the UJV agreement, after the achievement of commercial production (September 1, 2024) and up to the repurchase (November 30, 2024), net income only includes 60.3% of the Côté Gold UJV net income. Subsequent to November 30, 2024, 70% of revenue and expenses are proportionately consolidated. Net cash from (used in) operating activities is included at 60.3% in the consolidated statements of cash flows up to the repurchase (November 30, 2024), and is subsequently included at 70%. The Côté repurchase option liability as at December 31, 2024 consists of: December 31, December 31, Notes 2024 2023 Repurchase price: Balance, beginning of the year $ 350.8 $ — Funding obligations contributed by SMM — 250.0 Incremental funding by SMM due to increased ownership 46.9 77.1 Repurchase option fee included in repurchase price 1 — 23.7 9.7% pre-Commercial Production gold received by SMM 31 (18.4) — Other (1.6) — Repurchase of Transferred Interests (377.7) — Balance, end of the year — 350.8 Fees and balances not included in repurchase price: Balance, beginning of the year (5.5) — Repurchase option fee accrued 1 30 32.7 — Repurchase option fee paid 1 (32.7) — Deferred cost on waiver of operator fee (2.0) (6.5) Amortization of deferred operator fee 7.5 1.0 Balance, end of the year $ — $ (5.5) Côté repurchase option liability $ — $ 345.3 Current portion $ — $ — Non-current portion $ — $ 345.3 $ — $ 345.3 1. Repurchase option fees of $17.5 million (December 31, 2023 - $23.7 million) were capitalized to Côté Gold construction in progress. Subsequent to August 1, 2024, the repurchase option fees are included in finance costs (note 30). Commencing in 2024, the repurchase option fee was paid quarterly.

RESTRICTED CASH

RESTRICTED CASH	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Restricted Cash	Restricted Cash As at December 31, 2024, the Company had long-term restricted cash of XOF 34.6 billion (December 31, 2024 - $54.6 million; December 31, 2023 - XOF 31.2 billion, $52.6 million) in support of environmental closure costs obligations related to the Essakane mine and $11.0 million (December 31, 2023 - $11.4 million) posted as cash collateral for a surety bond issued for guarantee of certain environmental closure cost obligations related to the Westwood division and the Côté Gold mine. Additionally, the Company has posted CAD$4.1 million (December 31, 2024 - $2.8 million; December 31, 2023 - CAD$3.0 million, $2.3 million) as security for certain environmental closure cost obligations at the Westwood division. The XOF currency, also referred to as the West African CFA franc, is issued by the Central Bank of West African States (BCEAO) and is the denomination of the long-term restricted cash related to the Essakane mine. As at December 31, 2023, the Company had €21.9 million ($24.2 million) posted as security for the purchase of shares held by the minority interest shareholders of EURO. The Company completed the acquisition of EURO shares and €21.9 million ($23.7 million) was paid to the minority interest shareholders (note 5(b)).

RECEIVABLES AND OTHER CURRENT A

RECEIVABLES AND OTHER CURRENT ASSETS	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Receivables and Other Current Assets	Receivables and Other Current Assets Notes December 31, December 31, Receivables from governments $ 26.7 $ 61.0 Gold receivables 3.1 — Other receivables 4.9 6.8 Total receivables 34.7 67.8 Short-term investments 1.0 — Prepaid expenses 13.2 10.6 Hedge derivatives 20(b)(i) — 7.3 $ 48.9 $ 85.7 Receivables from governments relate primarily to value added taxes in Burkina Faso and Harmonized Sales Taxes in Canada. As a result of delays in the receipt of value added tax from the Government of Burkina Faso, an amount of $66.3 million has been presented in other non-current assets as at December 31, 2024 as the Company does not expect to recover these amounts within 12 months (note 13). As at December 31, 2023, $32.9 million of the receivables from governments related to value added taxes in Burkina Faso which during 2024 were reclassified to other non-current assets.

INVENTORIES

INVENTORIES	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Inventories	Inventories December 31, December 31, Finished goods $ 56.5 $ 33.8 Ore stockpiles 50.8 55.7 Mine supplies 164.6 176.8 271.9 266.3 Non-current ore stockpiles 153.0 106.5 $ 424.9 $ 372.8

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
	Dec. 31, 2024
Property, plant and equipment [abstract]
Property, Plant and Equipment	Property, Plant and Equipment Construction Mining Plant and Right-of-use assets 1 Total Cost Balance, January 1, 2023 $ 1,563.9 $ 2,506.8 $ 1,498.2 $ 85.4 $ 5,654.3 Additions 866.5 138.9 56.2 79.7 1,141.3 Changes in asset retirement obligations — 36.2 — — 36.2 UJV lease adjustment (4.0) — — (25.4) (29.4) Disposals (5.5) — (11.6) (0.5) (17.6) Transfers within property, plant and equipment (11.5) (0.1) 11.8 (0.2) — Transfers from exploration and evaluation assets — 11.1 — — 11.1 Balance, December 31, 2023 $ 2,409.4 $ 2,692.9 $ 1,554.6 $ 139.0 $ 6,795.9 Additions 320.0 253.4 71.0 34.8 679.2 Changes in asset retirement obligations — (21.4) — — (21.4) Disposals/derecognition — — (41.7) (8.6) (50.3) Transfers of Côté Gold Construction in progress (2,367.1) 1,098.8 1,268.3 — — Transfers within property, plant and equipment (254.7) 96.1 158.9 (0.3) — Balance, December 31, 2024 $ 107.6 $ 4,119.8 $ 3,011.1 $ 164.9 $ 7,403.4 Construction Mining Plant and Right-of-use assets 1 Total Accumulated Depreciation and Impairment Balance, January 1, 2023 $ — $ 1,963.1 $ 1,078.9 $ 14.3 $ 3,056.3 Depreciation expense — 141.4 90.8 22.7 254.9 Disposals — — (11.3) (0.5) (11.8) Transfers within property, plant and equipment — (11.5) 11.5 — — Balance, December 31, 2023 $ — $ 2,093.0 $ 1,169.9 $ 36.5 $ 3,299.4 Depreciation expense 2 — 157.2 116.8 29.0 303.0 Disposals/derecognition — — (40.8) (7.9) (48.7) Net impairment (reversal) charge — (371.8) (46.6) (1.3) (419.7) Balance, December 31, 2024 $ — $ 1,878.4 $ 1,199.3 $ 56.3 $ 3,134.0 Carrying amount, December 31, 2023 $ 2,409.4 $ 599.9 $ 384.7 $ 102.5 $ 3,496.5 Carrying amount, December 31, 2024 $ 107.6 $ 2,241.4 $ 1,811.8 $ 108.6 $ 4,269.4 1. Right-of-use assets ("ROU assets") consist of property, plant and equipment related to assets leased and accounted for under IFRS 16. 2. In 2024, the depreciation methodology for the Westwood mine was changed to Units of Production to better represent the Company's realization of the economic benefit of the underlying assets. The change in estimate resulted in an approximately $10 million reduction of depreciation during 2024. In accordance with IFRS 16, the Company recorded 100% of the lease liability and ROU assets as at December 31, 2022 as it entered into the agreement as operator for the 70% owned Côté Gold joint venture and the agreement did not allow for several liability. The Company amended the terms of the Caterpillar Financial Services Limited lease agreement and accounted for 70% of the lease liability and right-of-use assets as at December 31, 2023 (note 15). On August 1, 2024, Côté Gold was assessed to be ready for use as intended and the construction costs reported in construction in progress were reclassified to mining properties and plant and equipment. Depreciation commenced on the transferred amounts on August 1, 2024. During the third quarter 2024, the Company assessed that the increase in the long-term consensus price of gold to be an indicator of impairment reversal for the Westwood CGU. As a result, a $462.3 million full reversal of the previously recorded impairment was recorded, as the recoverable amount of the Westwood CGU exceeded the current carrying value (note 28). During the second quarter 2024, the Company ceased mining activity at the Fayolle property and therefore does not expect to realize a future economic benefit from Fayolle. As a result the full mining properties balance was impaired to $nil (note 28). In 2024, borrowing costs attributable to qualifying assets associated with the Côté Gold, Essakane and Westwood mines totaling $98.5 million (2023 - $113.5 million) were capitalized using a weighted average interest rate of 8.90% (2023 - 7.38%) (note 30). The weighted average interest rate was based on the 5.75% senior notes, credit facility, second lien term loan, equipment loans, gold prepayments, repurchase option fees and leases. As at December 31, 2024, mining properties included capitalized stripping costs of $319.1 million (December 31, 2023 - $199.2 million). Stripping costs of $181.4 million were capitalized during 2024 (2023 - $87.9 million), and $61.5 million were depreciated during 2024 (2023 - $85.3 million).

OTHER NON-CURRENT ASSETS

OTHER NON-CURRENT ASSETS	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Other Non-current Assets	Other Non-Current Assets Notes December 31, December 31, Receivables from governments 1 $ 66.3 $ — Advances for the purchase of capital equipment 16.4 18.5 Deferred consideration from the sale of Sadiola 2 18.3 15.2 Royalty interests 3 12.8 13.5 Marketable securities 21(a) 10.3 14.2 Long-term prepayment 2.9 3.3 Income taxes receivable 1.0 3.7 Bond fund investments 21(a) 1.0 2.0 Other 6.7 5.9 $ 135.7 $ 76.3 1. Receivables from governments relate primarily to value added taxes in Burkina Faso (note 10). 2. Includes deferred consideration on litigation settlement of $1.2 million and on milestone payments of $17.1 million. 3. Includes royalty interests in the Pitangui Project and Bomboré Project.

PROVISIONS

PROVISIONS	12 Months Ended
	Dec. 31, 2024
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract]
Provisions	Provisions Notes December 31, December 31, Asset retirement obligations (a) $ 279.6 $ 347.4 Other 20.0 18.1 $ 299.6 $ 365.5 Current portion of provisions $ 14.5 $ 5.4 Non-current provisions 285.1 360.1 $ 299.6 $ 365.5 (a) Asset retirement obligations The Company’s activities are subject to various laws and regulations regarding environmental restoration and closure for which the Company estimates future costs and recognizes a provision. These provisions may be revised on the basis of amendments to such laws and regulations and the availability of new information, such as changes in reserves corresponding to a change in the LOM, changes in discount rates, approved closure plans, estimated costs of reclamation activities and acquisition or construction of a new mine. The Company makes a provision based on the best estimate of the future cost of rehabilitating mine sites and related production facilities on a discounted basis. The following table presents the reconciliation of the provision for asset retirement obligations: Years ended December 31, Notes 2024 2023 Balance, beginning of the year $ 347.4 $ 298.5 Revision of estimated cash flows and discount rates: Capitalized in property, plant and equipment 12 (21.4) 36.2 Changes in asset retirement obligations at closed mines 29 (13.4) 9.7 Impairment reversal 28 (35.8) — Accretion expense 30 5.7 5.0 Disbursements (2.9) (2.0) Balance, end of the year $ 279.6 $ 347.4 Less: current portion (14.5) (5.4) Non-current portion $ 265.1 $ 342.0 As at December 31, 2024, the Company had restricted cash of XOF 34.6 billion (December 31, 2024 - $54.6 million; December 31, 2023 - XOF 31.2 billion; $52.6 million) for the guarantee of environmental closure costs obligations related to the Essakane mine (note 9). As at December 31, 2024, the Company had CAD$205.3 million ($142.5 million; December 31, 2023 - CAD$167.4 million ($126.7 million)) of surety bonds, issued pursuant to arrangements with insurance companies, for the guarantee of environmental closure costs obligations related to the Westwood division (note 18(e)). As at December 31, 2024, the Company had CAD$50.4 million ($35.0 million; December 31, 2023 - CAD$34.0 million ($25.8 million)) of surety bonds, issued pursuant to arrangements with insurance companies, for the guarantee of environmental closure costs obligations related to the Côté Gold mine (note 18(e)). As at December 31, 2024, the Company had posted letters of credit in the amount of CAD$10.6 million ($7.4 million, December 31, 2023 - CAD$29.8 million, $22.6 million) under the Credit Facility and $10.9 million (December 31, 2023 - $10.9 million) in cash deposits as collateral for surety bonds. The balance of $159.2 million remains uncollateralized (note 18(e)). As at December 31, 2024, the schedule of estimated undiscounted future disbursements for rehabilitation was as follows: CAD$ million 1 $ million 1 2025 $ 22.7 $ 1.4 2026 24.0 2.6 2027 12.3 2.8 2028 5.9 4.2 2029 2.6 6.9 2030 onwards 325.9 82.6 $ 393.4 $ 100.5 1. Disbursements in US$ relate to the Essakane mine and CAD$ disbursements relate to the Westwood division, including Doyon, Côté Gold and other closed Canadian sites. As at December 31, 2024, estimated undiscounted amounts of cash flows required to settle the obligations and expected timing of payments assumed in measuring the asset retirement obligations were as follows: Undiscounted Undiscounted Expected Timing of Payments Côté Gold mine $ 107.3 $ — 2025-2087 Essakane mine — 100.5 2025-2050 Westwood division, including Doyon 280.6 — 2025-2054 Other Canadian sites 5.5 — 2025-2124 $ 393.4 $ 100.5 (b) Provisions for litigation claims and regulatory assessments The Company is from time to time involved in legal proceedings and regulatory inquiries, arising in the ordinary course of business. Typically the amount of ultimate liability with respect to these actions will not, in the opinion of management, materially affect the Company’s financial position, results of operations or cash flows. During 2018, the Attorney General of Burkina Faso commenced proceedings against Essakane S.A. and certain of its employees generally relating to its practice of exporting carbon fines containing gold and silver from Burkina Faso to a third party facility in Canada for processing and eventual sale. The required payments with respect to shipments of carbon fines were made to the Burkinabe authorities on behalf of Essakane S.A. (and would have paid in respect of the 2018 shipment that was embargoed) pursuant to the royalty applicable under the Burkina Faso Mining Code to gold and silver produced by Essakane S.A. The Company vigorously defended itself and its employees against such proceedings. On December 26, 2023, Essakane S.A. entered into a settlement agreement with the Government of Burkina Faso and agreed to the forfeiture, directly to the State, of the embargoed carbon fines shipment in 2018 and an additional payment directly to the State of a fine in the approximate amount of $15 million. The forfeited carbon fines had a finished goods inventory carrying value of $13.5 million (note 29).

LEASES

LEASES	12 Months Ended
	Dec. 31, 2024
Disclosure of leases [Abstract]
Leases	Leases Years ended December 31, Notes 2024 2023 Balance, beginning of year $ 121.3 $ 73.8 Additions 34.1 79.7 Interest expense 8.4 7.5 Foreign exchange impact (11.0) 1.0 Principal lease payments 34(d) (20.6) (6.0) Interest payments (8.0) (5.3) UJV lease adjustment 12 — (29.4) Balance, end of year $ 124.2 $ 121.3 Current portion $ 28.8 $ 21.1 Non-current portion 95.4 100.2 $ 124.2 $ 121.3 Leases are entered into and exist to meet specific business requirements, considering the appropriate term and nature of the leased asset. Extension options Some property leases contain extension options exercisable by the Company up to one year before the end of the non-cancellable contract period. The extension options held are exercisable only by the Company and not by the lessors. The Company assesses at the lease commencement date whether it is reasonably certain to exercise the extension options. The Company reassesses whether it is reasonably certain to exercise the options if there is a significant event or significant changes in circumstances within its control. Some mobile equipment leases contain extension options which are exercisable by the Company, but require renegotiation or mutual agreement with the lessor. As these extension options are not exercisable only by the Company, the lease terms do not reflect the extension options and this resulted in some of the leases being classified as short-term. Short-term and low-value leases and variable lease payments Short-term leases are leases with a lease term of twelve months or less and leases of low-value assets are comprised of miscellaneous equipment. Such items are recognized in cost of sales or general and administrative expenses in the consolidated statements of earnings (loss). Some lease payments are driven by variable rates which are based on time, usage or a combination of both. Variable lease payments are not included in the lease liability and are recognized in cost of sales or exploration expenses in the consolidated statements of earnings (loss) when incurred. Years ended December 31, 2024 2023 Amounts recognized in statement of earnings (loss): Short-term and low-value leases $ 43.7 $ 25.6 Variable lease payments $ 4.6 $ 12.0

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2024
Income Taxes [Abstract]
Income Taxes	Income Taxes The effective tax rates for the years ended December 31, 2024 and 2023 were 13.2% and 23.9%, respectively. Income tax expenses (recoveries) consisted of the following components: Years ended December 31, 2024 2023 Current income taxes: Canadian current income taxes $ 11.6 $ 3.6 Foreign current income taxes 104.8 48.3 116.4 51.9 Deferred income taxes: Canadian deferred income taxes - origination and reversal of temporary differences 7.3 — Foreign deferred income taxes - origination and reversal of temporary differences 5.5 (21.2) Changes in tax rates or imposition of new taxes 0.2 — 13.0 (21.2) Total income tax expense (recovery) $ 129.4 $ 30.7 The Company is subject to income tax in several jurisdictions, at various tax rates. A number of factors other than the current year tax rates affect the relationship between the income or losses in a jurisdiction for financial accounting reporting purposes and the income tax provision required to be recognized for those same reporting purposes. These factors are illustrated below on all of the consolidated earnings (loss) before income taxes after applying a tax rate of 26.5%, reflecting the combined federal and provincial Canadian statutory corporate income tax rates which apply to the Company as a legal entity for the years ended December 31, 2024 and December 31, 2023: Years ended December 31, 2024 2023 Earnings (loss) before income taxes $ 977.2 $ 128.2 Income tax provision - 26.5% $ 259.0 $ 34.0 Increase (reduction) in income taxes resulting from: Earnings in foreign jurisdictions subject to a different tax rate than 26.5% (36.5) (31.9) Permanent items that are not included in income (losses) for tax purposes: Non-deductible expenses (4.4) (0.9) Income (losses) not recognized for tax purposes 0.6 (3.5) Tax provisions not based on legal entity income or losses for the year: Provincial mining duty tax 15.9 3.8 Non-resident withholding tax 14.3 5.5 Under (over) tax provisions 3.0 0.3 Changes in tax rates 0.2 — Other 0.5 0.3 Other adjustments: Change in unrecognized deferred tax assets (133.6) 21.4 Foreign exchange related to deferred income taxes 10.7 (2.2) Taxes paid relating to sale of assets — 4.1 Other (0.3) (0.2) Total income tax expense (recovery) $ 129.4 $ 30.7 The components that give rise to deferred income tax assets and liabilities are as follows: Years ended December 31, 2024 2023 Deferred income tax assets: Exploration and evaluation assets $ 283.3 $ 442.4 Asset retirement obligations 52.6 — Côté Gold repurchase option — 91.5 Other assets 61.3 43.8 397.2 577.7 Deferred income tax liabilities: Property, plant and equipment (383.1) (572.8) Mining duties (7.4) — Other liabilities (20.7) (5.6) (411.2) (578.4) Net deferred income tax liabilities $ (14.0) $ (0.7) Classification: Non-current assets $ — $ — Non-current liabilities (14.0) (0.7) $ (14.0) $ (0.7) Income tax expense (recoveries) related to OCI consisted of the following components: Years ended December 31, 2024 2023 Unrealized change in fair value of marketable securities $ 0.2 $ — Hedges 0.1 (0.7) Total income taxes related to OCI $ 0.3 $ (0.7) Unrecognized Deferred Income Tax Assets As at December 31, 2024, the Company did not recognize the benefit related to the following deferred income tax assets for the above related items in its consolidated financial statements, as management did not consider it probable that the Company would be able to realize these deferred income tax assets in the future. Deferred income tax assets have not been recognized in respect of the following deductible temporary differences: Years ended December 31, 2024 2023 Non-capital losses $ 778.7 $ 1,099.1 Net capital losses 93.8 104.4 Exploration and evaluation assets 155.4 338.6 Deduction for future mining duty taxes 18.9 18.9 Asset retirement obligations — 265.3 Other deductible temporary differences 10.8 0.1 Excessive interest and financing expenses 60.7 — $ 1,118.3 $ 1,826.4 The net capital loss carry forwards are restricted in use against capital gains but may be carried forward indefinitely. The exploration and evaluation assets may be carried forward indefinitely. At December 31, 2024, the non-capital loss carry forwards expire as follows: Expiry Date 2025 2026 2027 2028 2029+ No Expiry Total Total unrecognized losses $ 44.4 $ 21.2 $ 11.3 $ 9.1 $ 664.4 $ 28.3 $ 778.7 The Company has not recognized a deferred income tax liability on temporary differences of $590.6 million (December 31, 2023 - $527.0 million) related to investments in certain subsidiaries and joint ventures because the Company can control the reversal of the temporary differences and the temporary differences are not expected to reverse in the foreseeable future. The Company designates all dividends paid to its shareholders to be eligible dividends. The 2024 movement for net deferred income tax liabilities is summarized as follows: December 31, 2023 Statements OCI December 31, 2024 Deferred income tax assets: Exploration and evaluation assets $ 442.4 $ (159.1) $ — $ 283.3 Asset retirement obligations — 52.6 — 52.6 Côté Gold repurchase option 91.5 (91.5) — — Other assets 43.8 17.6 (0.1) 61.3 Deferred income tax liabilities: Property, plant and equipment (572.8) 189.7 — (383.1) Mining duties — (7.4) — (7.4) Other liabilities (5.6) (14.9) (0.2) (20.7) $ (0.7) $ (13.0) $ (0.3) $ (14.0) The 2023 movement for net deferred income tax liabilities is summarized as follows: December 31, 2022 Statements OCI December 31, 2023 Deferred income tax assets: Exploration and evaluation assets $ 307.7 $ 134.7 $ — $ 442.4 Asset retirement obligations 2.5 (2.5) — — Côté Gold repurchase option — 91.5 — 91.5 Other assets 34.3 8.8 0.7 43.8 Deferred income tax liabilities: Property, plant and equipment (355.3) (217.5) — (572.8) Other liabilities (11.8) 6.2 — (5.6) $ (22.6) $ 21.2 $ 0.7 $ (0.7) Global minimum top-up tax A number of countries in which the Company operates have enacted legislation to implement the global minimum top-up tax with effect January 1, 2024. Those relevant countries being Canada, France and Barbados. More than 140 countries have enacted or are in the process of enacting such top-up tax legislation. In all cases, the related legislation is complex and often requires subsequent clarifying amendments. The Company does not expect to be subject to any material amounts of top-up tax for any of its entities for the foreseeable future. The Company has applied a temporary mandatory relief from deferred tax accounting for any impacts of a top-up tax and will account for any such top-up tax as a current tax when incurred. Excessive interest and financing expenses With effect in 2024, Canada imposed restrictions on the deductibility for income tax purposes of excessive interest and financing expenses (“EIFEL”). For the 2024 fiscal year, the Company recognized $60.7 million of restricted EIFEL expenses. In light of (a) the significant tax pool balances available to the Company and (b) the carryforward deductibility of any such EIFEL limitations in a given year, the EIFEL proposals are not expected to represent a tax cash exposure for the foreseeable future.

OTHER LIABILITIES

OTHER LIABILITIES	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Other Liabilities	Other Liabilities Notes December 31, December 31, Hedge derivatives 20(b)(i) $ 9.8 $ 9.2 Non-hedge derivatives — 1.9 Yatela liability (a) 18.5 18.5 Other liabilities 0.1 — $ 28.4 $ 29.6 Current portion of other liabilities $ 27.7 $ 29.6 Non-current portion of other liabilities 0.7 — $ 28.4 $ 29.6 (a) Yatela liability On February 14, 2019, Sadiola Exploration Limited ("SADEX"), a subsidiary jointly held by the Company and AngloGold Ashanti Limited, entered into a share purchase agreement with the Government of Mali, as amended from time to time, whereby SADEX agreed to sell to the Government of Mali its 80% participation in Société d’Exploitation des Mines d’Or de Yatela ("Yatela"), for a consideration of $1. On November 8, 2024, the government issued a decree approving the transaction and, in accordance with the share purchase agreement, on February 5, 2025, SADEX made a one-time payment of approximately $37.0 million to the dedicated state account, corresponding to the estimated costs of completing the rehabilitation and closure of the Yatela mine, and also financing certain outstanding social programs. Upon completion and this payment being made, SADEX and its affiliated companies have been released of all obligations relating to the Yatela mine. The Company funded its portion of the payment of approximately $18.5 million on closing.

LONG-TERM DEBT AND CREDIT FACIL

LONG-TERM DEBT AND CREDIT FACILITY	12 Months Ended
	Dec. 31, 2024
Financial Instruments [Abstract]
Long-term Debt and Credit Facility	Long-term Debt and Credit Facility Notes December 31, December 31, Credit facility (a) $ 220.0 $ — 5.75% senior notes (b) 448.4 448.0 Second lien term loan (c) 358.4 375.6 Equipment loans (d) 2.1 7.2 $ 1,028.9 $ 830.8 Current portion of long-term debt $ 1.0 $ 5.0 Non-current portion of long-term debt 1,027.9 825.8 $ 1,028.9 $ 830.8 The following are the contractual maturities related to the long-term debts, including interest payments: Payments due by period December 31, 2024 Notes Carrying amount Contractual cash flows 1 yr 2-3 yrs 4-5 yrs Notes 1 (b) $ 450.0 $ 553.5 $ 25.9 $ 51.8 $ 475.8 Term Loan 2 (c) $ 400.0 $ 565.2 $ 49.2 $ 97.7 $ 418.3 Equipment loans (d) $ 2.1 $ 2.1 $ 1.0 $ 1.1 $ — 1. The carrying amount excludes unamortized deferred transaction costs of $3.6 million and the embedded derivative. 2. The carrying amount excludes unamortized deferred transaction costs of $3.7 million, the 3% original discount and the embedded derivative. 3. Excludes the amounts drawn on the credit facility, which can be repaid at any time prior to maturity in 2028. (a) Credit facility On December 20, 2024, the Company executed an amendment to its existing secured revolving credit facility ("Credit Facility"), extending its maturity to December 20, 2028 and increasing the amount available under the Credit Facility from $425 million to $650 million. Years ended December 31, Notes 2024 2023 Available amount under Credit Facility, beginning of year $ 387.0 $ 26.6 Increase (decrease) in available amount under Credit Facility 1 225.0 (75.0) Draws 2 34(e) (280.0) — Repayments 34(e) 60.0 455.0 Increase (decrease) in letters of credit 3 26.5 (19.6) Available amount under Credit Facility, end of year $ 418.5 $ 387.0 1. The amendment was determined to be a substantial modification to the Credit Facility, and therefore was accounted for as a debt extinguishment. 2. On November 20, 2024, the Company drew $220.0 million on the Credit Facility 3. The letters of credit were issued under the Credit Facility as security for surety bonds and asset retirement obligations (notes 18(e) and 14(a)), as well as providing guarantee for utility services in Ontario. The Credit Facility provides for an interest rate margin above Secured Overnight Financing Rate (“SOFR”) prime rate, base rate advances and CORRA advances which vary, together with fees related thereto, according to the total Net Debt to Earnings Before Interest, Tax, Depreciation and Amortization ("EBITDA") ratio of the Company. The Credit Facility is secured by certain of the Company's real assets, guarantees by certain of the Company’s subsidiaries and pledges of shares of certain of the Company's subsidiaries. The key terms of the Credit Facility include certain limitations on incremental debt, certain restrictions on distributions and financial covenants including Net Debt to EBITDA and Interest Coverage and a minimum liquidity requirement of $150 million. The Company was in compliance with its credit facility covenants as at December 31, 2024. (b) 5.75% senior notes ("Notes") On September 23, 2020, the Company completed the issuance of $450 million aggregate principal amount of Notes with an interest rate of 5.75% per annum. The Notes are denominated in U.S. dollars and mature on October 15, 2028. Interest is payable in arrears in equal semi-annual installments on April 15 and October 15 of each year, beginning on April 15, 2021. The Notes are guaranteed by certain of the Company's subsidiaries. The Company incurred transaction costs of $7.5 million which have been capitalized and offset against the carrying amount of the Notes within long-term debt in the consolidated balance sheets and are being amortized using the effective interest rate method. The Company has the right to redeem the Notes, in whole or in part, at the relevant redemption price (expressed as a percentage of the principal amount of the Notes) plus accrued and unpaid interest, if any, up to the redemption date. The redemption price for the Notes during the 12-month period beginning on October 15 of each of the following years is: 2024 – 102.875%; 2025 - 101.438%; 2026 and thereafter - 100%. The prepayment options are options that represent an embedded derivative asset to the Company and are presented as an offset to the Notes on the consolidated balance sheets. The debt component was initially recognized at $454.2 million, which represented the difference between the fair value of the financial instrument as a whole and the fair value of the embedded derivative at inception. Subsequently, the debt component is recognized at amortized cost using the effective interest rate method. The embedded derivative is classified as a financial asset at FVTPL. The fair value of the embedded derivative as at December 31, 2024 was $nil (December 31, 2023 - $nil) (note 21(a)). (c) Second lien term loan ("Term Loan") On May 16, 2023, the Company entered into a five year secured Term Loan of $400 million from three institutional lenders. The Term Loan has a 3% original issue discount, bears interest at a floating interest rate of either one month or three month SOFR + 8.25% per annum and matures on May 16, 2028. The loan is denominated in U.S. dollars, and interest is payable upon each SOFR maturity date. The Company incurred transaction costs of $11.0 million, in addition to a 3% original discount, which have been capitalized and offset against the carrying amount of the Term Loan within long-term debt in the consolidated balance sheets and are being amortized using the effective interest rate method. The obligations under the Term Loan are secured by certain of the Company's tangible assets, guarantees by certain of the Company's subsidiaries, and pledges of shares of certain of the Company's subsidiaries. The liens securing the Term Loan rank behind the liens securing the Credit Facility and are subject to an intercreditor agreement. The Term Loan can be repaid at any time and has a make-whole premium, that is comprised of the discounted value of lost interest and a 104% premium on the principal if repaid in the first two years. The make-whole premium expires after two years and the loan can be repaid at any time at a 104% premium if repaid between June 2025 and May 2026, and a 101% premium if repaid between June 2026 and May 2027 and 100% thereafter. The prepayment terms constitute an embedded derivative which was separately recognized at its fair value of $1.0 million on initial recognition of the Term Loan and presented as an offset to the Term Loan on the consolidated balance sheets. The embedded derivative is classified as FVTPL. The fair value of the embedded derivative as at December 31, 2024 was an asset of $26.7 million (December 31, 2023 - $5.1 million) (note 21(a)). The Term Loan has a minimum liquidity and interest coverage ratio covenant. The Company was in compliance with its Term Loan covenants as at December 31, 2024. (d) Equipment loans The Company has equipment loans with a carrying value of $2.1 million as at December 31, 2024 (December 31, 2023 - $7.2 million), secured by certain mobile equipment, with interest rates at 5.30% and which mature in 2026. The equipment loans are carried at amortized cost on the consolidated balance sheets. (e) Surety bonds As at December 31, 2024, the Company had CAD$255.7 million (December 31, 2024 - $177.5 million; December 31, 2023 ‐ CAD$201.4 million, $152.5 million) of surety bonds, issued pursuant to arrangements with insurance companies, for guarantee of environmental closure costs obligations related to Doyon, the Westwood mine and the Côté Gold mine. The Company posted letters of credit in the amount of CAD$10.6 million ($7.4 million, December 31, 2023 - CAD$29.8 million, $22.6 million) under the Credit Facility and $10.9 million (December 31, 2023 - $10.9 million) in cash deposits as collateral for surety bonds. The balance of $159.2 million remains uncollateralized. (f) Performance bonds As at December 31, 2024, performance bonds of CAD$32.0 million (December 31, 2024 - $22.2 million; December 31, 2023 - CAD$37.3 million, $28.2 million) were outstanding in support of certain obligations related to the construction of the Côté Gold mine.

DEFERRED REVENUE

DEFERRED REVENUE	12 Months Ended
	Dec. 31, 2024
Disclosure of revenue from contracts with customers [Abstract]
Deferred Revenue	Deferred Revenue During 2021, the Company entered into gold sale prepayment arrangements (the “2022 Prepay Arrangements”) at a weighted average cost of 4.45% per annum in respect of 150,000 gold ounces. These arrangements have an average forward contract price of $1,753 per ounce on 50,000 gold ounces and a collar range of $1,700 to $2,100 per ounce on 100,000 gold ounces. The Company received $236.0 million over the course of 2022 under the 2022 Prepay Arrangements and the requirement on the part of the Company is to physically deliver the agreed upon ounces to the counterparties over the course of 2024. 137,500 ounces were physically delivered during the year ended December 31, 2024 in relation to the 2022 Prepay Arrangements and the Company received $38.9 million in cash in relation to the collar, as the spot price exceeded the $1,700 per ounce floor price during 2024. During December 2023, the Company amended one of the 2022 Prepay Arrangements to defer the delivery of 6,250 ounces from Q1 2024 to Q1 2025. The ounces that are deferred were previously funded at a price of $1,753 per ounce. The Company also entered into further gold sale prepayment arrangements (the “2024 Q1 Prepay Arrangements”) at a weighted average cost of 11.3% per annum in respect of 31,250 gold ounces. These arrangements have an average funding price, after financing charges, of $1,916 per ounce. The Company received $59.9 million over the course of the first quarter 2024 under the 2024 Q1 Prepay Arrangements and is required to physically deliver the agreed upon ounces to the counterparties over the course of the first quarter of 2025. During April 2024, the Company amended one of the 2022 Prepay Arrangements to defer the delivery of 6,250 ounces from Q2 2024 to Q2 2025. The ounces that are deferred were previously funded at a price of $1,753 per ounce. The Company also entered into further gold sale prepayment arrangements (the “2024 Q2 Prepay Arrangements”) at a weighted average cost of 10% per annum in respect of 31,250 gold ounces. These arrangements have an average funding price, after financing charges, of $1,900 per ounce. These arrangements have a gold collar of $2,100 to $2,925 whereby the Company will receive a cash payment at the time of delivery of the ounces if the spot price of gold exceeds $2,100 per ounce, with the payment calculated as the difference between the spot price and $2,100 per ounce, capped at an average price of $2,925 per ounce. The Company received $59.4 million over the course of the second quarter 2024 under the 2024 Q2 Prepay Arrangements and is required to physically deliver the agreed upon ounces to the counterparties over the course of the second quarter of 2025. These arrangements have been accounted for as contracts in the scope of IFRS 15 Revenue from Contracts with Customers whereby the cash prepayments are recorded as deferred revenue in the consolidated balance sheets when received and revenue is recognized as deliveries are made. The cash payments received on gold collars at the time of delivery will also be recognized as revenue when the gold is delivered. An interest cost, representing the financing component of the cash prepayment, was recognized as part of finance costs. The following table summarizes the change in deferred revenue: Notes 2022 Prepay Arrangements 2024 Q1 Prepay Arrangements 2024 Q2 Prepay Arrangements Total Balance, January 1, 2023 $ 240.8 $ — $ — $ 240.8 Finance costs 30 10.8 — — 10.8 Balance, December 31, 2023 $ 251.6 $ — $ — $ 251.6 Proceeds from gold prepayment — 59.9 59.4 119.3 Deferred revenue recognized (235.7) — — (235.7) Finance costs 30 6.7 5.6 3.6 15.9 Balance, December 31, 2024 $ 22.6 $ 65.5 $ 63.0 $ 151.1 Current portion of deferred revenue $ 22.6 $ 65.5 $ 63.0 $ 151.1 Non-current deferred revenue — — — — $ 22.6 $ 65.5 $ 63.0 $ 151.1

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2024
Financial Instruments [Abstract]
Financial Instruments	Financial Instruments (a) Risks The Company is subject to various financial risks that could have a significant impact on profitability, levels of operating cash flow and financial conditions. Ongoing financial market conditions may have an impact on interest rates, gold prices and currency rates. The Company is exposed to various liquidity, credit and market risks associated with its financial instruments, and manages those risks as follows: (i) Liquidity risk Liquidity risk is the risk that an entity will encounter difficulty in meeting obligations associated with financial and other liabilities that are settled by delivering cash, another financial asset or physical production. The Company manages this risk through regular monitoring of its cash flow requirements to support ongoing operations and expansionary plans. The Company ensures that there are sufficient committed loan facilities to meet its anticipated business requirements, taking into account anticipated cash flows from operations and holdings of cash and cash equivalents. The Company ensures that it has sufficient cash and cash equivalents and loan facilities available to meet its anticipated short-term obligations. The following table summarizes the maturity date and principal amount of the Company's obligations as at December 31, 2024: Notes 2025 2026 2027 2028 onwards Total Accounts payable and accrued liabilities $ 264.8 $ — $ — $ — $ 264.8 Lease liabilities 15 38.1 33.0 29.4 23.7 124.2 Equipment loans 18(d) 1.0 1.1 — — 2.1 Credit Facility 18(a) — — — 220.0 220.0 Notes 18(b) — — — 450.0 450.0 Term Loan 18(c) — — — 400.0 400.0 Gold sale prepayment arrangements 1 19 151.1 — — — 151.1 $ 455.0 $ 34.1 $ 29.4 $ 1,093.7 $ 1,612.2 1. The gold sale prepay arrangements are an obligation of the Company to deliver ounces from its production and reduces future cash flows of the Company as the arrangements have already been funded. The value in the table represents the carrying value of the deferred revenue (note 19). Included in the cash and cash equivalents balance of $347.5 million as at December 31, 2024 is $46.0 million held by the Côté UJV and $130.2 million held by Essakane. The Côté UJV requires its joint venture partners to fund, in advance, two months of future expenditures. The Company uses dividends and intercompany loans to repatriate funds from its operations and the timing of dividends may impact the liquidity position of the Company. The Company has a treasury policy designed to support management of liquidity risk as follows: • Evaluate, review and monitor on a periodic basis, credit ratings and limits for counterparties with whom funds are invested; • Monitor cash balances within each operating entity; • Perform short to medium-term cash flow forecasting, as well as medium and long-term forecasting incorporating relevant budget information; and • Determine market risks inherent in the business, including currency, fuel and gold commodities and evaluate, implement and monitor hedging strategies through the use of derivative instruments. Under the terms of the Company’s derivative agreements, counterparties cannot require the immediate settlement of outstanding derivatives, except upon the occurrence of customary events of default such as covenant breaches, including financial covenants, insolvency or bankruptcy. The Company generally mitigates liquidity risk associated with these instruments by spreading out the maturity of its derivatives over time. (ii) Credit risk Credit risk is the risk that one party to a financial instrument will cause a financial loss for the other party by failing to discharge an obligation. The maximum amount of credit risk is equal to the balance of cash and cash equivalents, receivables, short-term investments, derivative assets and restricted cash. Where applicable, the measurement of the fair value of derivatives accounts for counterparty credit risk. The Company holds cash and cash equivalents, short-term investments and restricted cash in creditworthy financial institutions that comply with the Company’s investment policy and its credit risk parameters. For derivatives, the Company mitigates credit risk by entering into derivatives with high quality counterparties, limiting the exposure per counterparty, and monitoring the financial condition of the counterparties. Credit risk related to gold receivables is considered minimal as gold is sold to creditworthy counterparties and settled promptly, usually within two days of completing the sale. Credit risk is also related to receivables from governments. The receivables from governments primarily relate to value added and sales taxes. The Company has rights to these receivables based on application of tax laws and regularly monitors collection of the amounts, however the timing of receiving the amounts could be prolonged. (iii) Market risk Market risk is the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in market prices. For hedging activities, it is the risk that the fair value of a derivative might be adversely affected by a change in underlying commodity prices or currency exchange rates, and that this in turn affects the Company’s financial condition. The Company mitigates market risk by establishing and monitoring parameters that limit the types and degree of market risk that may be undertaken, establishing trading agreements with counterparties under which there are no requirements to post any collateral or make any margin calls on derivatives. Counterparties cannot require settlement solely because of an adverse change in the fair value of a derivative. Market risk comprises the following types of risks: share and commodity market price risk, currency risk, and interest rate risk. Currency exchange rate risk Movements in the Canadian dollar (CAD) and Euro (EUR) against the U.S. dollar (USD) have a direct impact on the Company’s consolidated financial statements. The Company manages its exposure to the Canadian dollar and Euro by executing option and forward contracts. The Company’s objective is to hedge its exposure to the Canadian dollar and Euro resulting from operating and capital expenditure requirements at some of its mine sites, corporate offices and development projects. The Company has designated option and forward contracts as cash flow hedges for its highly probable forecasted Canadian dollar and Euro expenditure requirements. The Company has elected to only designate the change in the intrinsic value of options in the hedging relationships. The change in fair value of the time value component of options is recorded in OCI as a cost of hedging (note 20(b)). As at December 31, 2024, the Company's outstanding derivative contracts which qualified for hedge accounting and the periods in which the cash flows are expected to occur and impact the consolidated statements of earnings (loss) and property, plant and equipment balance on the consolidated balance sheets are as follows: 2025 2026 Total Cash flow hedges Exchange rate risk Canadian dollar forward and option contracts (CADM) 406 72 478 Rate range (USDCAD) 1 1.35 - 1.44 1.36 - 1.44 1. The Company executed Canadian dollar collar options, which consist of Canadian dollar call and put options within the given range in 2024. The Company will recognize a gain from the difference between a lower market price and the Canadian dollar call strike price. The Company will incur a loss from the difference between a higher market price and the Canadian dollar put strike price. The table below sets out the fair value of the Company's outstanding derivative contracts which qualified for hedge accounting as at December 31, 2024, and what the fair value would have been based on an increase or decrease of 10% in the U.S. dollar exchange rate. The entire change in fair value would be recorded in the consolidated statements of comprehensive income (loss) as OCI. December 31, Increase of 10% Decrease of 10% Canadian dollar (CAD$) $ (9.8) $ (37.8) $ 20.5 Oil and fuel market price risk Low sulfur diesel and fuel oil are key inputs to extract tonnage and, in some cases, to wholly or partially power operations, construction and development activities. Brent crude oil and West Texas Intermediate ("WTI") crude oil prices are components of diesel and fuel oil costs, respectively, such that changes in the price of crude oil directly impact diesel and fuel oil costs. The Company established a hedging strategy that allows it to hedge future consumption of diesel and fuel oil at its operations. The Company designates option contracts as cash flow hedges for the crude oil component of its highly probable forecasted low sulfur diesel and fuel oil purchases. As at December 31, 2024, the Company has no outstanding crude oil derivative contracts. Gold bullion market price risk Movements in the spot price of gold have a direct impact on the Company’s consolidated financial statements as gold bullion is sold at prevailing market prices which fluctuate in line with market forces. The Company’s hedging strategy is designed to mitigate gold price risk should a decline in the gold price impact a contemplated transaction or scheduled debt payment. The Company has designated option contracts as cash flow hedges for its highly probable forecasted gold bullion sales. The Company has elected to only designate the change in the intrinsic value of options in the hedging relationships. The changes in fair value of the time value component of options is recorded in OCI as a cost of hedging and reclassified to earnings (loss) when revenue for the underlying gold sale is recognized. The 2022 Prepay Arrangement (note 19) includes a collar instrument as part of the broader arrangement. The collar introduced a gold floor price of $1,700 per ounce and a cap price of $2,100 per ounce allowing the Company to participate in price increases to $2,100 per ounce. The Company has designated this collar as a cash flow hedge in relation to the highly probable gold sale commitments during 2024. The 2024 Q2 Prepay Arrangement (note 19) includes a collar instrument as part of the broader arrangement. The collar introduced a gold floor price of $2,100 per ounce and a cap price of $2,925 per ounce allowing the Company to participate in price increases to $2,925 per ounce. The Company has designated this collar as a cash flow hedge in relation to the highly probable gold sale commitments during 2024. As at December 31, 2024, the Company has no outstanding gold bullion derivative contracts which qualify for hedge accounting. (b) Cash flow hedge fair value reserve (i) Reconciliation of cash flow hedge assets (liabilities) Canadian dollar contracts Oil contracts Gold price contracts Total Balance, January 1, 2023 $ 3.2 $ 20.4 $ (0.1) $ 23.5 Unrealized gain (loss) recognized in cash flow hedge reserve 2.9 (1.4) (2.9) (1.4) Realized (gain) loss reclassified or adjusted from cash flow hedge reserve (4.4) (12.2) 0.2 (16.4) Unrealized (gain) loss reclassified or — (0.2) — (0.2) Time value excluded from hedge relationship (0.1) (0.9) (6.4) (7.4) Balance, December 31, 2023 $ 1.6 $ 5.7 $ (9.2) $ (1.9) Unrealized gain (loss) recognized in cash flow hedge reserve (13.1) 1.6 (28.2) (39.7) Realized (gain) loss reclassified or adjusted from cash flow hedge reserve 1.7 (7.2) 30.3 24.8 Realized time value related to premiums paid — — 2.2 2.2 Time value excluded from hedge relationship — (0.1) 4.9 4.8 Balance, December 31, 2024 $ (9.8) $ — $ — $ (9.8) Consisting of: Current portion of hedge asset $ — $ — $ — $ — Non-current portion of hedge asset — — — — Current portion of hedge liability $ (9.1) $ — $ — $ (9.1) Non-current portion of hedge liability (0.7) — — (0.7) $ (9.8) $ — $ — $ (9.8) (ii) Allocation of realized hedge (gain) loss reclassified from cash flow hedge reserve Years ended December 31, 2024 2023 Consolidated balance sheets Property, plant and equipment $ 1.0 $ (4.3) Consolidated statements of earnings (loss) Revenues 32.5 1.1 Cost of sales (6.5) (11.4) General and administrative expenses — (0.2) 26.0 (10.5) Discontinued operations — (0.6) $ 27.0 $ (15.4) Revenues for the year ended December 31, 2024 include $2.2 million (December 31, 2023 - $1.1 million) of losses related to premiums previously paid and realized during the year.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2024
Fair Value Measurement [Abstract]
Fair Value Measurements	Fair Value Measurements The fair value hierarchy categorizes into three levels the inputs to valuation techniques used to measure fair value. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1 inputs) and the lowest priority to unobservable inputs (Level 3 inputs). • Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities which the entity can access at the measurement date. • Level 2 inputs are inputs other than quoted prices included within Level 1 which are observable for the asset or liability, either directly or indirectly such as those derived from prices. • Level 3 inputs are unobservable inputs for the asset or liability. There have been no changes in the classification of the financial instruments in the fair value hierarchy since December 31, 2023. (a) The Company's fair values of financial assets and liabilities December 31, 2024 Carrying Amount Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents $ 347.5 $ 347.5 $ — $ — $ 347.5 Short-term investments 1.0 1.0 — — 1.0 Restricted cash 68.4 68.4 — — 68.4 Marketable securities 10.3 10.3 — — 10.3 Bond fund investments 1.0 1.0 — — 1.0 Deferred consideration from the sale of Sadiola 17.1 — — 17.1 17.1 Derivatives Embedded derivative - prepayment options on Term Loan 26.7 — 26.7 — 26.7 $ 472.0 $ 428.2 $ 26.7 $ 17.1 $ 472.0 Liabilities Derivatives Currency contracts $ (9.8) $ — $ (9.8) $ — $ (9.8) Long-term debt - Notes 1 (452.0) (435.8) — — (435.8) Long-term debt - Term Loan 2 (400.8) — (449.2) — (449.2) Long-term debt - equipment loans (2.1) — (2.3) — (2.3) Long-term debt - Credit Facility (220.0) — (220.0) — (220.0) $ (1,084.7) $ (435.8) $ (681.3) $ — $ (1,117.1) 1. The carrying amount excludes unamortized deferred transaction costs of $3.6 million and the embedded derivative. 2. The carrying amount excludes unamortized deferred transaction costs of $3.7 million, the 3% original discount and the embedded derivative. December 31, 2023 Carrying Amount Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents $ 367.1 $ 367.1 $ — $ — $ 367.1 Restricted cash 90.5 90.5 — — 90.5 Marketable securities and warrants 14.2 14.2 — — 14.2 Bond fund investments 2.0 2.0 — — 2.0 Deferred consideration from the sale of Sadiola 15.2 — — 15.2 15.2 Derivatives Currency contracts 1.6 — 1.6 — 1.6 Crude oil contracts 1 5.7 — 5.7 — 5.7 Embedded derivative - prepayment options on Term Loan 5.1 — 5.1 — 5.1 $ 501.4 $ 473.8 $ 12.4 $ 15.2 $ 501.4 Liabilities Derivatives Gold bullion contracts $ (9.2) $ — $ (9.2) $ — $ (9.2) TARF (1.4) — (1.4) — (1.4) Extendible Forwards (0.5) — (0.5) — (0.5) Long-term debt - Notes 2 (452.5) (388.3) — — (388.3) Long-term debt - Term Loan 3 (400.9) — (411.0) — (411.0) Long-term debt - equipment loan 4 (7.3) — (7.3) — (7.3) $ (871.8) $ (388.3) $ (429.4) $ — $ (817.7) 1. Includes hedge and non-hedge derivatives. 2. The carrying amount excludes unamortized deferred transaction costs of $4.5 million and the embedded derivative. 3. The carrying amount excludes unamortized deferred transaction costs of $8.2 million, the 3% original discount and the embedded derivative 4. The carrying amount excludes unamortized deferred transaction costs of $0.1 million. (b) Valuation techniques Cash, cash equivalents, short-term investments and restricted cash Cash, cash equivalents, short-term investments and restricted cash are included in Level 1 due to the short-term maturity of these financial assets. Marketable securities and warrants The fair value of marketable securities included in Level 1 is determined based on a market approach. The closing price is a quoted market price from the exchange market which is the principal active market for the particular security. Bond fund investments The fair value of bond fund investments included in Level 1 is measured using quoted prices (unadjusted) in active markets. Deferred consideration from the sale of Sadiola The significant estimates and assumptions used in determining the fair value of the contingent payments were the production profile and discount rate and therefore classified within Level 3 of the fair value hierarchy. Derivatives - options and forwards For derivative contracts, the Company obtains a valuation of the contracts from counterparties of those contracts. The Company assesses the reasonableness of these valuations through internal methods and third-party valuations. The Company then calculates a credit valuation adjustment to reflect the counterparty’s or the Company’s own default risk. Valuations are based on market valuations considering interest rate and volatility, taking into account the credit risk of the financial instrument. Valuations of derivative contracts are therefore classified within Level 2 of the fair value hierarchy. Derivative - TARF The TARF matured during the second quarter 2024. The fair value was $1.4 million on December 31, 2023. The TARF was accounted for at FVTPL. Derivative - Extendible forward arrangement The extendable forward arrangement was completed in 2024. The fair value as at December 31, 2023 was a liability of $0.5 million and was accounted for at FVTPL. For the forward contracts, the Company obtains a valuation of the contracts from the counterparty. The Company assesses the reasonableness of these valuations through internal methods and third-party valuations. The Company calculates a credit valuation adjustment to reflect the default risk of the counterparty. Valuations are based on market valuations considering interest rate and volatility, taking into account the credit risk of the financial instrument. Valuations of derivative contracts are therefore classified within Level 2 of the fair value hierarchy. Embedded derivatives - Prepayment options on the Notes and Term Loan The fair value of the embedded derivatives related to the Notes and the Term Loan as at December 31, 2024 was $nil and an asset of $26.7 million, respectively (December 31, 2023 - $nil and $5.1 million asset, respectively) and is accounted for at FVTPL. The valuation is based on the discounted cash flows at the risk-free rate to determine the present value of the prepayment option. Key inputs used in the valuation include the credit spread, volatility parameter and the risk-free rate curve. Valuation of the prepayment option is therefore classified within Level 2 of the fair value hierarchy. Unsecured High Yield Notes The fair value of the Notes as at December 31, 2024 was $435.8 million (December 31, 2023 - $388.3 million). The fair value of the Notes is determined using quoted prices (unadjusted) in active markets, and is therefore classified within Level 1 of the fair value hierarchy. Credit Facility The fair value of the Credit Facility as at December 31, 2024 was $220.0 million (December 31, 2023 - $nil) which approximates its carrying amount and drawn amount, and is therefore classified within Level 2 of the fair value hierarchy. Term Loan The fair value of the Term Loan as at December 31, 2024 was $449.2 million (December 31, 2023 - $411.0 million). Key inputs used in the valuation include the credit spread, volatility parameter and the risk-free rate curve. Valuation of the Term Loan is therefore classified within Level 2 of the fair value hierarchy. Equipment loans The fair value of the equipment loans as at December 31, 2024 was $2.3 million (December 31, 2023 - $7.3 million). The fair value of the equipment loans is determined by applying a discount rate, reflecting the credit spread based on the Company's credit ratings to future cash flows and is therefore classified within Level 2 of the fair value hierarchy. Other financial assets and liabilities The fair value of all other financial assets and liabilities of the Company approximate their carrying amounts.

CAPITAL MANAGEMENT

CAPITAL MANAGEMENT	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Capital Management	Capital Management IAMGOLD’s objectives when managing capital are to: • Ensure the Company has sufficient financial capacity to support its operations, current mine development plans, construction projects, and long-term growth strategy; • Ensure the Company complies with its long-term debt covenants; and • Protect the Company’s value with respect to market and risk fluctuations. Notes December 31, 2024 December 31, 2023 Cash and cash equivalents $ 347.5 $ 367.1 Capital items: Long-term debt - Notes 1 18(b) $ 450.0 $ 450.0 Long-term debt - Term Loan 2 18(c) 400.0 400.0 Credit facility available for use 18(a) 418.5 387.0 Common shares 3,070.6 2,732.1 $ 4,339.1 $ 3,969.1 1. The carrying amount of the long-term debt excludes unamortized deferred transaction costs of $3.6 million as at December 31, 2024 (December 31, 2023 – $4.5 million) and the embedded derivative. 2. The carrying amount excludes unamortized deferred transaction costs of $3.7 million (December 31, 2023 - $8.2 million), the 3% original discount and the embedded derivative as at December 31, 2024. The Company operates in a capital intensive industry that experiences lengthy development lead times as well as risks associated with capital costs and timing of project completion. Factors affecting these risks, which are beyond the Company’s control, include the availability of resources, the issuance of necessary permits, costs of various inputs and the volatility of the gold price. The adequacy of the Company’s capital structure is assessed on an ongoing basis and adjusted as necessary after taking into consideration the Company’s strategy, the forward gold price, the mining industry, the capital requirements of the Company's operations and projects, economic conditions and associated risks. In order to maintain or adjust its capital structure, the Company may adjust its capital spending, adjust the amount of dividend distributions, issue new shares, purchase shares for cancellation pursuant to normal course issuer bids, extend its credit facility, issue new debt, repay existing debt, sell all or a portion of one or more of its assets, purchase or sell gold bullion or enter into forward gold sale arrangements. The Notes indenture contains a restriction on the use of proceeds from the sale of certain assets. The credit facility agreement contains certain restrictions on the assumption of certain additional debt and the sale of certain assets.

SHARE CAPITAL

SHARE CAPITAL	12 Months Ended
	Dec. 31, 2024
Share Capital, Reserves And Other Equity Interest [Abstract]
Share Capital	Share Capital The Company is authorized to issue an unlimited number of common shares, first preference shares issuable in series and second preference shares issuable in series. Years ended December 31, Number of common shares (in millions) Notes 2024 2023 Outstanding, beginning of the year 481.3 479.0 Equity issuance 85.2 — Issuance of flow-through common shares 1.9 — Issuance of shares for share-based compensation 25 3.0 2.3 Outstanding, end of the year 571.4 481.3 (a) Equity issuance On May 21, 2024, the Company entered into a public equity offering of 72.0 million common shares at a price of $4.17 per common share for gross proceeds of $300.2 million. The issuance was completed on May 24, 2024. The Company received net proceeds of $287.5 million from the equity offering, after transaction costs of $12.7 million. (b) Flow-through common shares In February 2024, the Company issued 1.9 million flow-through common shares at CAD$4.20 per share for net proceeds of $5.9 million (CAD$8.0 million), which included a $1.2 million premium reported as a deferred gain on the balance sheet to be recognized in earnings as eligible expenditures are made. A total of $4.7 million was recognized in equity based on the quoted price of the shares on the date of the issue less issuance costs. The flow-through common shares were issued to fund exploration expenditures for the Company's exploration properties in Quebec, Canada. Flow-through common shares require the Company to incur an amount equivalent to the proceeds of the issue on prescribed expenditures in accordance with the applicable tax legislation. As at December 31, 2024, the remaining unspent amount was $0.6 million. For the year ended December 31, 2024, $1.1 million was recognized as amortization of the gains related to the issuances of flow-through common shares and was included in interest income and derivatives and other investment gains in the consolidated statements of earnings (note 31).

NON-CONTROLLING INTERESTS

NON-CONTROLLING INTERESTS	12 Months Ended
	Dec. 31, 2024
Noncontrolling Interest Disclosure [Abstract]
Non-Controlling Interests	Non-Controlling Interests Financial information of subsidiaries that have material non-controlling interests are provided below: December 31, 2024 December 31, 2023 Essakane Essakane Rosebel 1 Boto 2 Percentage of voting rights held by non-controlling interests 10% 10% 5% 10% Accumulated non-controlling interest $ 64.0 $ 54.2 $ — $ — Net earnings (loss) attributable to non-controlling interests $ 27.7 $ 6.2 $ 0.7 $ (0.2) Dividends paid to non-controlling interests 3 $ 18.0 $ 12.0 $ — $ — 1. Amounts disclosed for 2023 are for the period until January 31, 2023. The sale of the Rosebel mine, which includes the Saramacca Project, was completed on January 31, 2023 (note 6). The Rosebel mine met the criteria to be reclassified as held for sale and discontinued operations as at December 31, 2022. 2. Amounts disclosed for 2023 are for the period until April 25, 2023. The sale of the Boto Gold project was completed on April 25, 2023 (note 7). The Boto Gold project met the criteria to be classified as held for sale as at December 31, 2022. 3. For the year ended December 31, 2024, dividends paid to other non-controlling interests amounted to $nil (December 31, 2023 – $1.7 million). Selected summarized information relating to these subsidiaries are provided below, before any intercompany eliminations: December 31, 2024 December 31, 2023 Essakane Essakane Rosebel 1 Boto 2 Current assets $ 324.0 $ 330.3 $ — $ — Non-current assets 882.2 764.3 — — Current liabilities (175.0) (157.5) — — Non-current liabilities (234.1) (237.4) — — Net assets $ 797.1 $ 699.7 $ — $ — Year ended Year ended December 31, 2024 December 31, 2023 Revenues $ 1,084.3 $ 810.6 $ 47.2 $ — Net earnings (loss) and OCI $ 277.5 $ 61.9 $ 14.4 $ (1.9) Net cash from (used in) operating activities $ 444.6 $ 223.8 $ 15.4 $ (3.5) Net cash from (used in) investing activities (196.9) (137.0) (8.2) (3.2) Net cash from (used in) financing activities (185.2) (145.8) (2.0) 5.2 Net increase (decrease) in cash and cash equivalents $ 62.5 $ (59.0) $ 5.2 $ (1.5) 1. Amounts disclosed for 2023 are for the period until January 31, 2023. The sale of the Rosebel mine, which includes the Saramacca Project, was completed on January 31, 2023 (note 6). The Rosebel mine met the criteria to be reclassified as held for sale and discontinued operations as at December 31, 2022. 2. Amounts disclosed for 2023 are for the period until April 25, 2023. The sale of the Boto Gold project was completed on April 25, 2023 (note 7). The Boto Gold project met the criteria to be classified as held for sale as at December 31, 2022. The Company’s ability to access or use the assets of Essakane to settle its liabilities is not significantly restricted by known current contractual or regulatory requirements, or from the protective rights of non-controlling interests. Dividends payable by Essakane must be approved by the Supervisory Boards, which includes representation from the non-controlling interest.

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangements [Abstract]
Share-Based Compensation	Share-Based Compensation Years ended December 31, 2024 2023 Options $ 0.8 $ 0.9 Share units 5.4 5.6 $ 6.2 $ 6.5 (a) Options (i) Share option plan The Company has a comprehensive share option plan for its full-time employees and directors. The options vest over three A maximum of 25,905,624 common shares have been reserved for issuance pursuant to the share option plan of which, as of December 31, 2024, 18,211,059 have been issued and 7,694,565 remain issuable. As of December 31, 2024, options to purchase 3,125,071 common shares were outstanding and options to purchase 4,569,494 common shares remained available for further grants under the plan. Year ended December 31, 2024 Year ended December 31, 2023 Options Weighted (CAD/share) 1 Options Weighted average exercise price (CAD/share) Outstanding, beginning of the year 5.2 $ 4.77 4.7 $ 4.86 Granted 0.8 3.67 1.0 3.70 Exercised 2 (1.6) 5.36 (0.2) 3.26 Forfeited (0.3) 3.93 (0.1) 3.94 Expired (1.0) 5.24 (0.2) 3.26 Outstanding, end of the year 3.1 $ 4.13 5.2 $ 4.77 Exercisable, end of the year 1.4 $ 4.57 3.0 $ 5.38 1. Exercise prices are denominated in Canadian dollars. The USDCAD exchange rate at December 31, 2024 was $1.4404/CAD. 2. The weighted average share price on date of options exercised was CAD$6.56. The following table summarizes information related to options outstanding at December 31, 2024: Range of Prices Number Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price 1.01 - 5.00 2.9 4.4 $ 3.94 5.01 - 10.00 0.2 0.2 $ 6.84 3.1 4.1 $ 4.13 (ii) Fair value of options granted The following were the weighted average inputs to the Black-Scholes model used in determining the fair value of the options granted during the year. The estimated fair value of the options is expensed over their expected life. Years ended December 31, 2024 2023 Weighted average risk-free interest rate 3.7 % 3.5 % Weighted average expected volatility 1 58.3 % 57.7 % Weighted average dividend yield — % — % Weighted average expected life of options issued (years) 4.5 5.0 Weighted average grant-date fair value (CAD per share) $ 1.73 $ 1.88 Weighted average share price at grant date (CAD per share) $ 3.50 $ 3.63 Weighted average exercise price (CAD per share) $ 3.67 $ 3.70 1. Expected volatility is estimated by considering historical average share price volatility based on the average expected life of the options. (b) Other share-based compensation (i) Share incentive plans A maximum of 32,256,762 common shares have been reserved for issuance under the share purchase plan, the share bonus plan and the share unit plan of which, as of December 31, 2024, 12,434,328 have been issued and 19,822,434 remain issuable. As of December 31, 2024, 6,758,139 common shares were subject to outstanding restricted share units, performance share units and deferred share units grants and 13,064,295 common shares remained available for further grants under these plans. A summary of the status of the Company’s outstanding share units issued to directors and employees under the Company's share incentive plan and changes during the year is presented below. Years ended December 31, (in millions) 2024 2023 Outstanding, beginning of the year 6.1 6.3 Granted 2.7 3.4 Issued (1.4) (2.1) Forfeited and withheld for tax (0.7) (1.5) Outstanding, end of the year 6.7 6.1 (ii) Summary of share units granted Deferred share units Directors can elect to receive the equity portion of their annual retainer in the form of deferred share units. Upon a director leaving the Board, the Company will issue that number of common shares equivalent to that number of deferred share units granted. As the deferred share units are equity settled, the cost to the Company is based on the grant date fair value. The estimated fair value of the awards is expensed over their vesting period. Years ended December 31, 2024 2023 Granted during the year (in millions) 0.2 0.5 Grant-date fair value (CAD per share) 1 $ 5.71 $ 3.55 1. The grant-date fair value is equal to the share price on grant date. Restricted share units Executive officers and certain employees are granted restricted share units on an annual basis. Employee restricted share unit grants vest over twelve Restricted share units are granted to employees based on a fixed percentage which is reviewed on an annual basis by the Human Resources and Compensation Committee of the Board of Directors. The number of restricted share units granted is determined as part of the employees’ overall compensation. The estimated fair value of the awards is expensed over their vesting period. Years ended December 31, 2024 2023 Granted during the year (in millions) 1.8 2.1 Grant-date fair value (CAD per share) 1 $ 3.69 $ 3.69 1. The grant-date fair value is equal to the share price on grant date. Performance share units Executive officers and certain employees are granted performance share units on an annual basis. The performance share unit grants vest over thirty-six months and are equity settled. There are no cash settlement alternatives for these grants. Performance share units are granted based on performance objectives and criteria determined on an annual basis based on guidelines established by the Human Resources and Compensation Committee of the Board of Directors. The number of performance share units granted is determined as part of the employees’ overall compensation. The estimated fair value of the awards is expensed over their vesting period. Years ended December 31, 2024 2023 Granted during the year (in millions) 0.7 0.8 Grant-date fair value (CAD per share) 1 $ 3.50 $ 3.65 1. The grant-date fair value was determined using a Monte Carlo model. (c) Share purchase plan The Company has a share purchase plan for employees with more than three months of continuous service. Participants determine their contribution as a whole percentage of their base salary from 1% to 10%. The Company matches 75% of the first 5% of employee contributions, to a maximum of 3.75% of the employee’s salary, towards the purchase of shares on the open market. No shares are issued from treasury under the share purchase plan. The Company’s contribution is expensed and is considered vested on December 31 of each calendar year.

COST OF SALES

COST OF SALES	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Cost of Sales	Cost of Sales Years ended December 31, Notes 2024 2023 Operating costs 1 $ 715.1 $ 602.2 Royalties 36(b) 94.2 44.8 Depreciation expense 2 273.8 216.0 $ 1,083.1 $ 863.0 1. Operating costs include mine production, transport and smelter costs, and site administrative expenses. 2. Depreciation expense excludes depreciation related to corporate office assets, which is included in general and administrative expenses. For the year ended December 31, 2024, the Company recognized $nil in cost of sales related to operating below normal capacity at Essakane (December 31, 2023 - $14.5 million).

GENERAL AND ADMINSTRATIVE EXPEN

GENERAL AND ADMINSTRATIVE EXPENSES	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
General and Administrative Expenses	General and Administrative Expenses Years ended December 31, Notes 2024 2023 Salaries $ 24.8 $ 28.4 Restructuring costs 5.4 2.7 Directors' fees and expenses 1.0 1.4 Professional and consulting fees 8.6 9.2 Other administration costs 2.9 2.3 Share-based compensation 5.0 5.6 (Gain) loss on cash flow hedges — (0.2) Depreciation expense 1.2 1.4 $ 48.9 $ 50.8

IMPAIRMENT REVERSAL (CHARGE)

IMPAIRMENT REVERSAL (CHARGE)	12 Months Ended
	Dec. 31, 2024
Disclosure of impairment of assets [Abstract]
Impairment Reversal (Charge)	Impairment Reversal (Charge) Years ended December 31, 2024 2023 Fayolle Mining properties $ (6.8) $ — Westwood CGU Mining properties, Plant and equipment and ROU assets 426.5 — Asset retirement obligations 35.8 — $ 455.5 $ — The Company performs impairment testing for its property, plant and equipment when indicators of potential impairment or reversal of previously recognized impairment are identified. During the second quarter 2024, the Company ceased mining activity at the Fayolle property and therefore does not expect to realize a future economic benefit from Fayolle. As a result the full mining properties balance was impaired to $nil. During the third quarter 2024, the Company assessed that the increase in the long-term consensus price of gold to be an indicator of impairment reversal for the Westwood CGU. As a result, an assessment of the recoverable amount of the Westwood CGU was performed. It was determined that the recoverable amount exceeded the carrying amount plus the prior impairments recorded on the Westwood CGU and the Company recorded a $462.3 million reversal in the consolidated statements of earnings (loss). The recoverable amount of the Westwood CGU was determined by calculating the fair value less cost of disposal (“FVLCD”). The FVLCD was determined by calculating the net present value of the estimated future cash flows using the Company's internal life of mine plan (level 3 of the fair value hierarchy). The significant estimates and assumptions used in determining the FVLCD were the life of mine production profile (including assumptions around conversion of resources into reserves), future operating and capital expenditures, gold prices, future foreign exchange rates and the discount rate. The future cash flows used to calculate the FVLCD were discounted using a real discount rate of 5.5%, which reflects specific market risk factors and risks inherent to the Westwood CGU.

OTHER (INCOME) EXPENSES

OTHER (INCOME) EXPENSES	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Other (Income) Expenses	Other (Income) Expenses Years ended December 31, Notes 2024 2023 Changes in asset retirement obligations at closed mines 14(a) $ (13.4) $ 9.7 Write-down of assets 0.9 1.3 Forfeiture of carbon fines 14(b) — 13.5 Settlement of carbon fines 14(b) — 15.0 Other 3.3 7.8 $ (9.2) $ 47.3

FINANCE COSTS

FINANCE COSTS	12 Months Ended
	Dec. 31, 2024
Borrowing costs [abstract]
Finance Costs	Finance Costs Years ended December 31, Notes 2024 2023 Interest expense $ 95.9 $ 79.0 Accretion expense - gold prepayment 19 15.9 10.8 Repurchase option fee 8 32.7 23.7 Credit Facility fees 6.2 4.1 Accretion expense - asset retirement obligations 14(a) 5.7 5.0 Other finance costs 12.9 11.9 $ 169.3 $ 134.5 Borrowing costs attributable to qualifying assets $ (98.5) $ (113.5) $ 70.8 $ 21.0 Interest paid 1 $ 91.6 $ 68.3 1.

INTEREST INCOME, DERIVATIVES AN

INTEREST INCOME, DERIVATIVES AND OTHER INVESTMENT GAINS (LOSSES)	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Interest Income, Derivatives and Other Investment Gains (Losses)	Interest Income, Derivatives and Other Investment Gains (Losses) Years ended December 31, Notes 2024 2023 Interest income $ 16.1 $ 27.8 Insurance recoveries 27.3 0.6 Gains (losses) on non-hedge derivatives and warrants 16.1 12.6 Amortization of gain related to flow-through common shares 1.1 — 9.7% of Côté Gold pre-Commercial Production gold received by SMM 8 18.4 — 9.7% of Côté Gold expenses funded by SMM (6.6) — Gain on sale of Pitangui and Acurui Projects — 15.5 Fair value of deferred consideration from the sale of Sadiola 1.8 (4.3) Other gains (losses) (3.3) 1.0 $ 70.9 $ 53.2 During the third quarter 2024, the Company received proceeds of $27.3 million upon finalizing an insurance settlement agreement relating to the property and business interruption loss arising from the October 30, 2020 seismic event at the Westwood mine.

EXPENSES BY NATURE

EXPENSES BY NATURE	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Expenses by Nature	Expenses by Nature The following employee benefits expenses are included in cost of sales, general and administrative expenses, exploration expenses and other expenses. Years ended December 31, 2024 2023 Salaries, short-term incentives, and other benefits $ 213.7 $ 177.8 Share-based compensation 5.7 4.8 Other 6.4 4.1 $ 225.8 $ 186.7

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2024
Earnings per share [abstract]
Earnings Per Share	Earnings Per Share (a) Basic earnings (loss) per share computation Years ended December 31, 2024 2023 Numerator Net earnings (loss) from continuing operations attributable to equity holders $ 819.6 $ 88.7 Net earnings (loss) from discontinued operations attributable to equity holders $ — $ 5.6 Net earnings (loss) attributable to equity holders $ 819.6 $ 94.3 Denominator (in millions) Weighted average number of common shares (basic) 539.8 480.6 Basic earnings (loss) from continuing operations per share attributable to $ 1.52 $ 0.18 Basic earnings (loss) from discontinued operations per share attributable to $ — $ 0.01 Basic earnings (loss) per share attributable to equity holders $ 1.52 $ 0.19 (b) Diluted earnings (loss) per share computation Years ended December 31, 2024 2023 Denominator (in millions) Weighted average number of common shares (basic) 539.8 480.6 Dilutive effect of options 0.7 — Dilutive effect of share units 5.4 4.0 Weighted average number of common shares (diluted) 545.9 484.6 Diluted earnings (loss) from continuing operations per share attributable to equity holders $ 1.50 $ 0.18 Diluted earnings (loss) from discontinued operations per share attributable to equity holders $ — $ 0.01 Diluted earnings (loss) per share attributable to equity holders $ 1.50 $ 0.19 Equity instruments excluded from the computation of diluted earnings (loss) per share which could be dilutive in the future were as follows: Years ended December 31, (in millions) 2024 2023 Options 0.2 5.2

CASH FLOW ITEMS

CASH FLOW ITEMS	12 Months Ended
	Dec. 31, 2024
Cash Flow Statement [Abstract]
Cash Flow Items	Cash Flow Items (a) Adjustments for other non-cash items within operating activities Years ended December 31, Notes 2024 2023 Share-based compensation $ 5.7 $ 6.2 9.7% of Côté Gold pre-Commercial Production gold received by SMM 31 (18.4) — 9.7% of Côté Gold expenses funded by SMM 31 6.6 — Write-down (reversal) of inventories 3.6 5.9 Changes in estimates of asset retirement obligations at closed sites 29 (13.4) 9.7 Derivative (gain) loss (20.4) (22.9) Interest income 31 (16.1) (27.8) Gain on sale of Pitangui and Acurui Projects 31 — (15.5) Effects of exchange rate fluctuation on cash and cash equivalents 7.0 (1.3) Effects of exchange rate fluctuation on restricted cash 4.1 (2.8) Insurance recoveries 31 (27.3) (0.6) Other (12.0) 6.6 $ (80.6) $ (42.5) (b) Movements in non-cash working capital items and non-current ore stockpiles Years ended December 31, 2024 2023 Receivables and other current assets $ (45.6) $ 18.0 Inventories and non-current ore stockpiles (51.4) (76.6) Accounts payable and accrued liabilities (17.4) 43.7 $ (114.4) $ (14.9) (c) Other investing activities Years ended December 31, Notes 2024 2023 Interest received $ 18.1 $ 26.3 Fayolle royalty payment — (1.1) (Increase) decrease in restricted cash (6.2) (31.0) Capital expenditures for exploration and evaluation assets (1.0) — Disposal of marketable securities 8.2 (0.4) Other (0.6) 0.9 $ 18.5 $ (5.3) (d) Other financing activities Years ended December 31, Notes 2024 2023 Interest paid 30 $ (13.8) $ — Dividends paid to non-controlling interests (18.0) (13.7) Proceeds from issuance of flow-through common shares 23(b) 5.9 — Repayment of equipment loans 18(d) (5.1) (9.2) Payment of lease obligations 15 (20.6) (6.0) Common shares issued for cash on exercise of stock options 6.1 0.4 Other (13.5) (18.9) $ (59.0) $ (47.4) (e) Reconciliation of long-term debt arising from financing activities Equipment loans 5.75% senior notes Credit facility Term Loan Total Balance, January 1, 2023 $ 16.1 $ 447.6 $ 455.0 $ — $ 918.7 Cash changes: Proceeds — — — 400.0 400.0 Deferred transaction costs — — — (23.0) (23.0) Repayments (9.2) — (455.0) — (464.2) Non-cash changes: Amortization of deferred financing charges 0.1 0.9 — 2.8 3.8 Foreign currency translation 0.2 — — — 0.2 Change in fair value of embedded derivative — — — (4.1) (4.1) Other — (0.5) — (0.1) (0.6) Balance, December 31, 2023 $ 7.2 $ 448.0 $ — $ 375.6 $ 830.8 Cash changes: Draws — — 280.0 — 280.0 Repayments (5.1) — (60.0) — (65.1) Non-cash changes: Amortization of deferred financing charges — 0.9 — 4.4 5.3 Change in fair value of embedded derivative — — — (21.6) (21.6) Other — (0.5) — — (0.5) Balance, December 31, 2024 $ 2.1 $ 448.4 $ 220.0 $ 358.4 $ 1,028.9

SEGMENTED INFORMATION

SEGMENTED INFORMATION	12 Months Ended
	Dec. 31, 2024
Operating Segments [Abstract]
Segmented Information	Segmented Information The Company’s gold mines are divided into geographic segments as follows: • Côté Gold mine 1 - Ontario, Canada; • Essakane mine - Burkina Faso; and • Westwood complex - Quebec, Canada. The Company’s non-gold mine segments are divided as follows: • Exploration and evaluation and development; and • Corporate - includes royalty interests. December 31, 2024 December 31, 2023 Total non- Total Total Total non- Total Total Gold mines Côté Gold $ 2,887.0 $ 3,016.0 $ 227.3 $ 2,521.5 $ 2,638.0 $ 243.2 Essakane 882.2 1,206.2 281.9 764.4 1,100.4 274.2 Westwood complex 788.0 822.2 199.7 357.9 389.5 249.7 Total gold mines 4,557.2 5,044.4 708.9 3,643.8 4,127.9 767.1 Exploration and evaluation and development 74.4 77.7 9.3 37.7 47.4 1.3 Corporate 74.5 252.3 1,255.5 102.7 328.0 1,499.8 Assets held for sale 1 — — — — 34.6 5.6 Total $ 4,706.1 $ 5,374.4 $ 1,973.7 $ 3,784.2 $ 4,537.9 $ 2,273.8 1. Includes assets and liabilities held for sale relating to the remaining Bambouk assets (note 7). Year ended December 31, 2024 Consolidated statements of earnings (loss) information Capital 4 Revenues Cost of sales 1 Depreciation expense 2 General and administrative 3 Exploration Impairment Other Earnings Gold mines Côté Gold 5 $ 284.3 $ 115.0 $ 56.7 $ — $ 6.5 $ — $ 0.5 $ 105.6 $ 268.8 Essakane 1,083.2 536.8 162.3 — — — (0.3) 384.4 185.5 Westwood complex 323.0 157.5 53.7 — — (455.5) (11.6) 578.9 66.1 Total gold mines 1,690.5 809.3 272.7 — 6.5 (455.5) (11.4) 1,068.9 520.4 Exploration and evaluation and development — — — — 15.2 — 0.7 (15.9) — Corporate 6 (57.5) — 1.1 48.9 — — 1.5 (109.0) 1.6 Total $ 1,633.0 $ 809.3 $ 273.8 $ 48.9 $ 21.7 $ (455.5) $ (9.2) $ 944.0 $ 522.0 1. Excludes depreciation expense. 2. Depreciation expense excludes depreciation related to corporate office assets, which is included in general and administrative expenses. 3. Includes depreciation expense relating to corporate and exploration and evaluation assets. 4. Includes incurred capital expenditures for property, plant and equipment and exploration and evaluation assets and excludes capitalized borrowing costs and ROU assets. Côté Gold is presented at 70%. 5. Up to the achievement of Commercial Production, revenue and expenses include 60.3% of the Côté Gold UJV balances. 9.7% of the revenue and expenses from the Côté Gold UJV, $18.4 million and $6.6 million respectively, are included in interest income, derivatives and other investment gains (losses) as this was funded by SMM (note 8). Subsequent to November 30, 2024, revenue and expenses include 70% of the Côté Gold UJV balances. 6. Includes impact on revenues of delivering ounces into gold sale prepayment arrangements (note 19) and earnings from royalty interests. ______________________________ 1. The Côté Gold mine segment includes the financial information of the Côté UJV as well as other financial information for the Côté Gold mine outside of the Côté UJV. Year ended December 31, 2023 Consolidated statements of earnings (loss) information Capital 4 Revenues Cost of sales 1 Depreciation expense 2 General and administrative 3 Exploration Impairment Other Earnings Gold mines Côté Gold $ — $ — $ — $ 0.4 $ 4.2 $ — $ 1.0 $ (5.6) $ 731.6 Essakane 809.6 502.4 183.6 — — — 31.6 92.0 136.6 Westwood complex 176.6 144.6 31.3 — — — 10.4 (9.7) 65.6 Total operating gold mines 986.2 647.0 214.9 0.4 4.2 — 43.0 76.7 933.8 Exploration and evaluation and development — — — — 22.1 — 0.2 (22.3) — Corporate 5 0.9 — 1.1 50.4 — — 4.1 (54.7) 0.4 Total continuing operations $ 987.1 $ 647.0 $ 216.0 $ 50.8 $ 26.3 $ — $ 47.3 $ (0.3) $ 934.2 Discontinued operations 6 47.2 23.8 — — 0.1 — 1.3 22.0 10.8 Total $ 1,034.3 $ 670.8 $ 216.0 $ 50.8 $ 26.4 $ — $ 48.6 $ 21.7 $ 945.0 1. Excludes depreciation expense. 2. Depreciation expense excludes depreciation related to corporate office assets, which is included in general and administrative expenses. 3. Includes depreciation expense relating to corporate and exploration and evaluation assets. 4. Includes incurred capital expenditures for property, plant and equipment and exploration and evaluation assets and excludes capitalized borrowing costs and ROU assets. 5. Includes earnings from royalty interests. 6.

COMMITMENTS

COMMITMENTS	12 Months Ended
	Dec. 31, 2024
Commitments [Abstract]
Commitments	Commitments December 31, 2024 December 31, 2023 Purchase obligations $ 155.0 $ 209.9 Capital expenditure obligations 117.2 158.8 Lease obligations 142.8 130.4 $ 415.0 $ 499.1 (a) Commitments – payments due by period As at December 31, 2024 Total 1 yr 1 2-3 yrs 2 4-5 yrs 3 >5 yrs 4 Purchase obligations $ 155.0 $ 141.6 $ 6.9 $ 2.0 $ 4.5 Capital expenditure obligations 117.2 102.3 14.9 — — Lease obligations 142.8 39.8 70.1 23.4 9.5 $ 415.0 $ 283.7 $ 91.9 $ 25.4 $ 14.0 1. Due over the period from January 1, 2025 to December 31, 2025. 2. Due over the period from January 1, 2026 to December 31, 2027. 3. Due over the period from January 1, 2028 to December 31, 2029. 4. Due from January 1, 2030 and beyond. (b) Royalties included in Cost of sales Production from certain mining operations is subject to third party royalties (included in cost of sales) based on various methods of calculation summarized as follows: December 31, 2024 December 31, 2023 Côté Gold $ 19.4 $ — Essakane 74.5 44.6 Westwood 0.3 0.2 $ 94.2 $ 44.8

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2024
Related Party [Abstract]
Related Party Transactions	Related Party Transactions (a) Receivables from related parties The Company had no receivables from related parties during the year ended December 31, 2024. (b) Compensation of key management personnel Compensation breakdown for key management personnel, comprising of the Company’s directors and executive officers, is as follows: Years ended December 31, 2024 2023 Salaries and other benefits $ 5.5 $ 7.2 Retirement benefits 0.7 2.1 Share-based payments 3.2 4.2 $ 9.4 $ 13.5

SUBSEQUENT EVENT

SUBSEQUENT EVENT	12 Months Ended
	Dec. 31, 2024
Subsequent Events1 [Abstract]
Subsequent Event	Subsequent Event [NTD]

SUMMARY OF MATERIAL ACCOUNTING

SUMMARY OF MATERIAL ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Statement of compliance	These consolidated financial statements of IAMGOLD and all of its subsidiaries and joint venture as at and for the years ended December 31, 2024 and 2023, have been prepared in accordance with IFRS as issued by the IASB. These consolidated financial statements were prepared on a going concern basis. The material accounting policies applied in these consolidated financial statements are presented in note 3 and have been consistently applied in each of the years presented. These consolidated financial statements of IAMGOLD were authorized for issue in accordance with a resolution of the Board of Directors on February 20, 2025.
Basis of measurement	The consolidated financial statements have been prepared on a historical cost basis, except for items measured at fair value
Basis of consolidation	Subsidiaries and divisions related to significant properties of the Company are accounted for as outlined below. Name Property December 31, December 31, Type of Accounting Côté Gold division 1,2 Côté Gold mine 70% 70% Division Proportionate share IAMGOLD Essakane S.A. ("Essakane S.A.") Essakane mine (Burkina Faso) 90% 90% Subsidiary Consolidation Westwood division 1 Westwood complex (Canada) 100% 100% Division Consolidation Vanstar Resources Inc. 3 ("Vanstar") Nelligan Gold project (Canada) 100% —% Subsidiary Consolidation 1. Part of IAMGOLD Corporation. The Westwood division includes the closed Doyon mine ("Doyon"). 2. Prior to the Sumitomo Metal Mining Co. Ltd. ("SMM") financing arrangement entered into during December 2022 (note 8), the Company held a 70% interest in Côté Gold through an unincorporated joint venture with SMM (the "Côté UJV"). The Company's interest was diluted to 60.3% as part of the arrangement, however, the Company will continue to account for 70% of the interest. On September 30, 2024, the Company provided SMM with a formal irrevocable notice to repurchase the 9.7% interest of Côté Gold, and the repurchase was effected on November 30, 2024, returning the Company to a 70% interest in Côté Gold (note 8). A third party holds a 7.5% net profits interest in the mineral tenure comprising the project. 3. On February 13, 2024, the Company acquired all of the issued and outstanding common shares of Vanstar (note 5(a)). Vanstar owned a 25% interest in the Nelligan Gold project, with the remaining 75% interest owned by IAMGOLD Corporation.
Subsidiaries	Subsidiaries are entities over which the Company has the ability to exercise control. Control of an entity is defined to exist when the Company is exposed to variable returns from involvement with the entity and has the ability to affect those returns through power over the entity. Specifically, the Company controls an entity if the Company has all of the following: power over the entity (i.e. existing rights that give the Company the current ability to direct the relevant activities of the entity); exposure, or rights, to variable returns from involvement with the entity; and the ability to use power over the entity to affect its returns. Subsidiaries are consolidated from the acquisition date, which is the date on which the Company obtains control of the acquired entity. Where the Company’s interest in a subsidiary is less than 100%, the Company recognizes a non-controlling interest. All intercompany balances, transactions, income, expenses and profits or losses have been eliminated on consolidation.
Unincorporated arrangements	The Company participates in unincorporated arrangements and has rights to its share of the undivided assets, liabilities, revenues and expenses of the properties, subject to the arrangements, rather than a right to a net return. All such amounts are measured in accordance with the terms of the arrangements, which is usually in proportion to the Company’s interest in the assets, liabilities, revenues and expenses of the properties. These amounts are recorded in the Company’s consolidated financial statements on the appropriate lines.
Functional and presentation currency	The functional currency of the Company is the U.S. dollar. The presentation currency of the Company's consolidated financial statements is the U.S. dollar. Transactions denominated in foreign currencies are translated into the entity's functional currency as follows: • Monetary assets and liabilities are translated at the exchange rate in effect at the balance sheet date; • Non-monetary assets and liabilities are translated at historical exchange rates prevailing at each transaction date; • Deferred tax assets and liabilities recognized are translated at the exchange rate in effect at the balance sheet date with translation gains and losses recorded in income tax expense; and • Revenues and expenses are translated at the average exchange rates throughout the reporting period, except depreciation, which is translated at the rates of exchange applicable to the related assets, and share-based compensation expense, which is translated at the rates of exchange applicable at the date of grant of the share-based compensation. Exchange gains or losses on translation of transactions are included in the consolidated statements of earnings (loss). When a gain or loss on certain non-monetary items, such as financial assets at fair value through OCI ("FVTOCI"), is recognized in OCI, the translation differences are also recognized in OCI.
Financial instruments	The Company recognizes financial assets and financial liabilities on the date the Company becomes a party to the contractual provisions of the instruments. A financial asset is derecognized either when the Company has transferred substantially all the risks and rewards of ownership of the financial asset or when cash flows expire. A financial liability is derecognized when the obligation specified in the contract is discharged, cancelled or expired. Certain financial instruments are recorded at fair value in the consolidated balance sheets. Refer to note 21 on fair value measurements. (i) Non-derivative financial instruments Non-derivative financial instruments are recognized initially at fair value plus attributable transaction costs, where applicable for financial instruments not classified as fair value through profit or loss ("FVTPL"). Subsequent to initial recognition, non-derivative financial instruments are classified and measured as described below. Financial assets at FVTPL Cash and cash equivalents, restricted cash, short-term investments, bond fund investments and warrants are classified as financial assets at FVTPL and are measured at fair value. Cash equivalents are short-term investments with initial maturities of three months or less. Short-term investments have initial maturities of more than three months and less than 12 months. The unrealized gains or losses related to changes in fair value are reported in interest income, derivatives and other investment gains (losses) in the consolidated statements of earnings (loss). Amortized cost Trade and other receivables and fixed rate investments are classified as and measured at amortized cost using the effective interest rate method, less impairment losses, if any. Financial assets at FVTOCI The Company’s investments in equity marketable securities are designated as financial assets at FVTOCI and are recorded at fair value on the trade date with directly attributable transaction costs included in the recorded amount. Subsequent changes in fair value are recognized in OCI. Non-derivative financial liabilities Accounts payable, accrued liabilities, senior notes, equipment loans, and borrowings under the credit facility are accounted for at amortized cost, using the effective interest rate method. The amortization of senior notes issue costs and equipment loans transaction costs are calculated using the effective interest rate method, and the amortization of credit facility issue costs is calculated on a straight-line basis over the term of the credit facility. (ii) Non-hedge derivatives The Company may hold derivative financial instruments to hedge its risk exposure to fluctuations of other currencies compared to the U.S. dollar, and fluctuations in commodity prices such as for gold, oil and fuel. All derivative financial instruments not designated in a hedge relationship that qualify for hedge accounting are classified as financial instruments at FVTPL. Derivative financial instruments at FVTPL, including embedded derivatives requiring separation from its host contract, are recorded in the consolidated balance sheets at fair value. Changes in the estimated fair value of non-hedge derivatives at each reporting date are included in the consolidated statements of earnings (loss) as non-hedge derivative gain or loss. Embedded derivatives in financial liabilities measured at amortized cost are separated from the host contract and accounted for separately if the economic characteristics and risks of the host contract and the embedded derivative are not closely related. (iii) Hedge derivatives The Company uses derivative financial instruments to hedge its exposure to exchange rate fluctuations on foreign currency denominated revenues, operating expenses and purchases of non-financial assets and its exposure to price fluctuations of consumable purchases. The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objectives and strategies for undertaking hedge transactions. This process includes linking all derivative hedging instruments to forecasted transactions. Hedge effectiveness is assessed based on the degree to which the cash flows from the derivative contracts are expected to offset the cash flows of the underlying transaction being hedged. When a derivative is designated as a cash flow hedging instrument, the effective portion of changes in fair value is recognized in OCI, net of tax. For hedged items other than the purchase of non-financial assets, the amounts accumulated in OCI are reclassified to the consolidated statements of earnings (loss) when the underlying hedged transaction, identified at contract inception, affects profit or loss. When hedging a forecasted transaction that results in the recognition of a non-financial asset, the amounts accumulated in OCI are removed and added to the carrying amount of the non-financial asset. Any ineffective portion of a hedge relationship is recognized immediately in the consolidated statements of earnings (loss). The Company has elected to exclude the time value component of options and the forward element of forward contracts from the hedging relationships, with changes in these amounts recorded in OCI and treated as a cost of hedging. For hedged items other than the purchase of non-financial assets, the cost of hedging amounts is reclassified to the consolidated statements of earnings (loss) when the underlying hedged transaction affects profit or loss. When hedging a forecasted transaction that results in the recognition of a non-financial asset, the cost of hedging is added to the carrying amount of the non-financial asset. When derivative contracts designated as cash flow hedges are terminated, expired, sold or no longer qualify for hedge accounting, hedge accounting is discontinued prospectively. Any amounts recorded in OCI until the time the contracts do not qualify for hedge accounting remain in OCI. Amounts recognized in OCI are recognized in the consolidated statements of earnings (loss) in the period in which the underlying hedged transaction is completed. Gains or losses arising subsequent to the derivative contracts not qualifying for hedge accounting are recognized in the period incurred in the consolidated statements of earnings (loss). If the forecasted transaction is no longer expected to occur, then the amounts accumulated in OCI are reclassified to the consolidated statements of earnings (loss) immediately.
Inventories	Finished goods and ore stockpiles are measured at the lower of weighted average production cost and net realizable value. Finished goods includes both gold doré and gold in circuit. Mine supplies are measured at the lower of average purchase cost and net realizable value. Net realizable value is calculated as the difference between the estimated selling price and estimated costs to complete processing into a saleable form plus variable selling expenses. Production costs include the cost of materials, labour, mine site production overheads and depreciation to the applicable stage of processing. Production overheads are allocated to inventory based on the normal capacity of production facilities. The cost of ore stockpiles is increased based on the related current cost of production for the period, and decreases in stockpiles are charged to cost of sales using the weighted average cost per tonne. Stockpiles are segregated between current and non-current inventories in the consolidated balance sheets based on the period of planned usage. The cost of inventory is reduced to net realizable value to reflect changes in grades, quantity or other economic factors and to reflect current intentions for the use of redundant or slow-moving items. Provisions for redundant and slow-moving supplies inventory are made by reference to specific items of inventory. The Company reverses write-downs when there is a subsequent increase in net realizable value and where the inventory is still on hand. Spare parts, stand-by and servicing equipment held are generally classified as inventories. Major capital spare parts and stand-by equipment (insurance spares) are classified as a component of property, plant and equipment.
Property, plant and equipment	Property, plant and equipment are measured at cost less accumulated depreciation and accumulated impairment charges. The initial cost of an asset comprises its purchase or construction cost, any costs directly attributable to bringing the asset to a working condition for its intended use, the initial estimate of the asset retirement obligation ("ARO"), and for qualifying assets, borrowing costs. The purchase price or the construction cost is the aggregate cash paid and the fair value of any other consideration given to acquire the asset. Gains or losses on disposal of an item of property, plant and equipment are determined by comparing the proceeds from disposal with the carrying amount of property, plant and equipment, and are recognized in the consolidated statements of earnings (loss) in other expenses. The cost of replacing part of an item of property, plant and equipment is recognized in the carrying amount of the item if it is probable that the future economic benefits embodied within the part will flow to the Company and its cost can be measured reliably. The carrying amount of the replaced part is de-recognized. Costs of the day-to-day servicing of property, plant and equipment are recognized in the consolidated statements of earnings (loss) as incurred. Property, plant and equipment presented in the consolidated balance sheets represents the capitalized expenditures related to: construction in progress, mining properties, stripping costs, and plant and equipment, including corporate assets. Plant and equipment located at corporate locations includes the following categories of assets: furniture and equipment, computer equipment, software, scientific instruments and equipment, vehicles and leasehold improvements and at the mine site includes land and buildings, plant equipment, capital spares, and other equipment.
Construction in progress	Upon determination of technical feasibility and commercial viability of extracting a mineral resource, the related exploration and evaluation assets (note 3(e)) are transferred to construction in progress costs. These amounts plus all subsequent mine development costs are capitalized. Costs are not depreciated until the project is ready for use as intended by management. Mine construction costs include expenditures to develop new ore bodies, define further mineralization in existing ore bodies, and construct, install and complete infrastructure facilities. Borrowing costs are capitalized and allocated specifically to qualifying assets when funds have been borrowed, either to specifically finance a project or for general borrowings during the period of construction. Qualifying assets are defined as assets that require more than six months to be brought to the location and condition intended by management. Capitalization of borrowing costs ceases when such assets are ready for their intended use. The date of transition from construction to production accounting is based on both qualitative and quantitative criteria such as substantial physical project completion, sustained level of mining, sustained level of processing activity, and passage of a reasonable period of time. Upon completion of mine construction activities (based on the determination of the commencement of production), costs are reclassified from construction in progress assets into the appropriate categories of property, plant and equipment. Revenue from sales occurring from all production, including production from the commissioning stage, is recorded in the consolidated statements of earnings (loss).
Mining properties	Capitalized costs for evaluation on or adjacent to sites where the Company has mineral deposits, are classified as mining properties within property, plant and equipment.
Stripping Costs	Costs associated with stripping activities in an open pit mine are expensed within cost of sales unless the stripping activity can be shown to improve access to further quantities of ore that will be mined in future periods, in which case, the stripping costs are capitalized to mining properties within property, plant and equipment. Furthermore, stripping costs are capitalized to inventory to the extent that the benefits of the stripping activity relate to gold production inventories or ore stockpiles.
Depreciation	Effective from the point an asset is available for its intended use, property, plant and equipment are depreciated using either the straight-line or units-of-production methods over the shorter of the estimated economic life of the asset or the mining operation. Depreciation is determined based on the method which best represents the use of the assets. The reserve and resource estimates for each mining operation are the prime determinants of the life of a mine. In general, when the useful life of property, plant and equipment is akin to the life of the mining operation and the ore body's mineralization is reasonably well defined, the asset is depreciated on a units-of-production basis over its proven and probable mineral reserves. Non-reserve material may be included in depreciation calculations in limited circumstances where there is a high degree of confidence in its economic extraction. The Company evaluates the estimate of mineral reserves and resources at least on an annual basis and adjusts the units-of-production method calculation prospectively. When property, plant and equipment are depreciated on a straight-line basis, the useful life of the mining operation is determined based on the most recent life of mine (“LOM”) plan. LOM plans are typically developed annually and are based on management’s current best estimates of optimized mine and processing plans, future operating costs and the assessment of capital expenditures of a mine site. Estimated useful lives normally vary from three Amounts related to expected economic conversions of resources to reserves recorded in an asset acquisition or business combination are not depreciated until resources are converted into reserves. Amounts related to capitalized costs of exploration and evaluation assets and construction in progress are not depreciated as the assets are not available for use. Capitalized stripping costs are depreciated over the reserves that directly benefit from the specific stripping activity using the units-of-production method. Capitalized borrowing costs are depreciated over the useful life of the related asset. Residual values, useful lives and depreciation methods are reviewed at least annually and adjusted if appropriate. The impact of changes to the estimated useful lives, depreciation method or residual values is accounted for prospectively.
Mineral exploration and evaluation expenditures	Exploration activities relate to the collection of exploration data which consists of geological, geophysical, geochemical, sampling, drilling, trenching, analytical test work, assaying, mineralogical, metallurgical, and other similar information that is derived from activities undertaken to locate, investigate, define or delineate a mineral prospect or mineral deposit. Mineral exploration costs are expensed as incurred. Evaluation costs are capitalized and relate to activities to evaluate the potential technical feasibility and commercial viability of extracting a mineral resource on sites where the Company does not have mineral deposits already being mined or constructed. The technical feasibility and commercial viability is based on management’s evaluation of the geological properties of an ore body based on information obtained through evaluation activities, including metallurgical testing, resource and reserve estimates and economic assessment whether the ore body can be mined economically. Exploration properties acquired through asset acquisitions are also recognized as exploration and evaluation assets.
Assets and liabilities held for sale and discontinued operations	Non-current assets and disposal groups are classified as held for sale if their carrying value will be recovered principally through a sale transaction rather than through continuing use. The criteria for held for sale classification are regarded as met only when the sale is highly probable and the asset or disposal group is available for immediate sale in its present condition. Actions required to complete the sale should indicate that it is unlikely that significant changes to the sale will be made or that the decision to sell will be withdrawn. Management must be committed to the plan to sell the asset or disposal group and the sale expected to be completed within one year from the date of the classification. Non-current assets and disposal groups classified as held for sale are measured at the lower of their carrying amount and fair value less costs to sell ("FVLCS"). If the FVLCS is lower than the carrying amount, an impairment loss is recognized in the consolidated statements of earnings (loss). Non-current assets are not depreciated or amortized once classified as held for sale. Equity accounting ceases for the investment in associate and incorporated joint venture once classified as held for sale. Assets and liabilities classified as held for sale are presented separately as current items in the Company's consolidated balance sheets. A disposal group qualifies as a discontinued operation if it is a component of the Company that either has been disposed of, or is classified as held for sale, and: (i) represents a separate major line of business or geographical area of operations; (ii) is part of a single coordinated plan to dispose of a separate major line of business or geographical area of operations; or (iii) is a subsidiary acquired exclusively with a view to resale. A component of the Company comprises an operation and cash flows that can be clearly distinguished, operationally and for financial reporting purposes, from the rest of the Company. Further, a discontinued operation must be a component of the Company that was a cash generating unit ("CGU") while being held for use. Discontinued operations are excluded from the results of continuing operations and are presented as a single amount as profit or loss after tax from discontinued operations in the consolidated statements of earnings (loss).
Impairment and reversal of impairment: Financial assets	The Company recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost. At each reporting date, the Company measures the loss allowance for the financial asset at an amount equal to the lifetime expected credit losses if the credit risk on the financial asset has increased significantly since initial recognition. If at the reporting date, the credit risk on the financial asset has not increased significantly since initial recognition, the Company measures the loss allowance for the financial asset at an amount equal to twelve month expected credit losses. Impairment losses on financial assets carried at amortized cost are reversed in subsequent periods if the financial asset is no longer credit-impaired and the improvement can be related objectively to an event occurring after the impairment was recognized.
Impairment and reversal of impairment: Non-financial assets	The carrying amounts of the Company’s non-current assets, including property, plant and equipment and exploration and evaluation assets, are reviewed at each reporting date to determine whether there is any indication of impairment. If any such indicator exists, the Company performs an impairment test. An impairment test requires the Company to determine the recoverable amount of an asset or group of assets. For non-current assets, including property, plant and equipment and exploration and evaluation assets, the recoverable amount is determined for an individual asset, unless the asset does not generate cash inflows that are largely independent of those from other assets or groups of assets. If this is the case, the individual assets are grouped together into a CGU for impairment testing purposes. A CGU for impairment testing is typically considered to be an individual mine site or a development project. The recoverable amount is determined as the higher of the CGU’s fair value less costs of disposal ("FVLCD") and value in use (“VIU”). If the carrying amount of the asset or CGU exceeds its recoverable amount, an impairment charge is recorded to the other long-lived assets in the CGU on a pro rata basis. An assessment is made at each reporting date to determine whether there is an indication that previously recognized impairment losses may no longer exist or may be reduced. If it has been determined that the impairment has reversed, the carrying amount of the asset is increased to its recoverable amount to a maximum of the carrying amount that would have been determined had no impairment charge been recognized in prior periods. An impairment charge reversal is recognized in the consolidated statements of earnings (loss). Impairment charges recognized in relation to goodwill are not reversed for subsequent increases in a CGU’s recoverable amount. In the absence of market related comparative information, the FVLCD is generally determined based on the present value of estimated future cash flows from each long-lived asset or CGU. The significant assumptions used in determining the FVLCD for the CGUs are typically LOM production profiles, long-term commodity prices, reserves and resources, discount rates, foreign exchange rates, values of known reserves and resources not included in the LOM (i.e. un-modeled mineralization), operating and capital expenditures, net asset value (“NAV”) multiples and expected commencement of production for exploration and evaluation and development projects. Management’s assumptions and estimates of future cash flows are subject to risks and uncertainties, particularly in market conditions where higher volatility exists, and may be partially or totally outside of the Company's control. Therefore, it is reasonably possible that changes could occur with evolving economic conditions, which may affect the recoverability of the Company’s long-lived assets. If the Company fails to achieve its valuation assumptions or if any of its long-lived assets or CGUs experience a decline in their fair value, this may result in an impairment charge in future periods, which would reduce the Company's earnings.
Asset retirement obligations	The Company records legal and constructive obligations required to restore locations in the period in which the obligation is incurred with a corresponding increase in the carrying amount of the related property, plant and equipment, and if the effect of discounting is material, measures it at its present value. For locations where mining activities have ceased, changes to obligations are charged directly to the consolidated statements of earnings (loss). The obligation is generally considered to have been incurred when mine assets are constructed or the ground environment is disturbed at the production location. The discounted liability is adjusted at the end of each period to reflect the passage of time, based on a risk-free discount rate that reflects current market assessments, and changes in the estimated future cash flows underlying the obligation. The Company also estimates the timing of the outlays, which are subject to change depending on continued operation or newly discovered reserves. The periodic unwinding of the discount is recognized in earnings as accretion expense included in finance costs in the consolidated statements of earnings (loss). Additional disturbances or changes in restoration costs or in discount rates are recognized as changes to the corresponding assets and ARO when they occur. Environmental costs at operating mines, as well as changes to estimated costs and discount rates for closed mines, are charged to earnings in the period during which they occur.
Other provisions	Provisions are recognized when a legal or constructive present obligation exists as a result of a past event, for which it is probable that an outflow of economic resources will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation. Provisions are reviewed at the end of each reporting period and adjusted to reflect management's current best estimate of the expenditure required to settle the present obligation at the end of the reporting period. If it is no longer probable that an outflow of resources embodying economic benefits will be required to settle the obligation, the provision is reversed. Provisions are reduced by actual expenditures in respect of the obligation for which the provision was originally recognized.
Income taxes	Current income tax Current income tax assets and liabilities for the current and prior periods are measured at the amount expected to be recovered from or paid to the taxation authorities. The tax rates and tax laws used to compute the amount are those that are enacted or substantively enacted by the balance sheet date. Current income tax assets and current income tax liabilities are only offset if a legally enforceable right exists to set off the amounts, and the Company intends to settle on a net basis or to realize the asset and settle the liability simultaneously. Current income taxes related to items recognized directly in equity are recognized directly in equity. (ii) Deferred income tax Deferred income tax is recognized in respect of temporary differences between the carrying amounts of assets and liabilities in the consolidated balance sheets and tax bases. Deferred income tax liabilities are recognized for all taxable temporary differences, except: • Where the deferred income tax liability arises from the initial recognition of goodwill or of an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither accounting profit nor taxable profit (tax loss); and • In respect of taxable temporary differences associated with investments in subsidiaries, associate and joint venture, where the timing of the reversal of the temporary differences can be controlled by the parent or the joint venture and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that taxable profit will be available against which the deductible temporary differences, the carry forward of unused tax credits and unused tax losses can be used, except: • W hen the temporary difference results from the initial recognition of an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither accounting profit nor taxable profit (tax loss); and • In respect of deductible temporary differences associated with investments in subsidiaries, associate and joint venture, deferred income tax assets are recognized only to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be used. The carrying amount of deferred income tax assets is reviewed at each balance sheet date and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred income tax asset to be used. Unrecognized deferred income tax assets are reassessed at each balance sheet date and are recognized to the extent that it has become probable that future taxable profit will be available to allow the deferred tax asset to be recovered. A translation gain or loss may arise for deferred income tax purposes where the local tax currency is not the same as the functional currency for non-monetary assets. A deferred tax asset or liability is recognized on the difference between the carrying amount for accounting purposes (which reflects the historical cost in the entity’s functional currency) and the underlying tax basis (which reflects the current local tax cost, translated into the functional currency using the current foreign exchange rate). The translation gain or loss is recorded in income taxes in the consolidated statements of earnings (loss). Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply to the year when the asset is expected to be realized or the liability settled, based on tax rates (and tax laws) that have been enacted or substantively enacted at the balance sheet date. Deferred income taxes related to items recognized directly in equity are recognized directly in equity. Deferred income tax assets and deferred income tax liabilities are offset, if a legally enforceable right exists to set off current income tax assets against current income tax liabilities and the deferred income taxes relate to the same taxable entity and the same taxation authority.
Earnings (loss) per share	The Company presents basic and diluted earnings (loss) per share data for its common shares. Basic earnings (loss) per share are calculated by dividing earnings (loss) attributable to equity holders by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated using the treasury method for stock options and warrants, and the if converted method for equity settled share units. The treasury method assumes that outstanding stock options and warrants with an average exercise price below the market price of the underlying shares are assumed to be exercised and the assumed proceeds are used to purchase common shares of the Company from treasury at the average market price of the common shares for the period. The if converted method assumes that all equity settled share units have been converted in determining diluted earnings (loss) per share if they are in-the-money, except where such conversion would be anti-dilutive.
Share-based compensation	The Company has the following share-based compensation plans with related costs included in general and administrative expenses. (i) Share incentive plan The Company has a number of equity-settled share-based compensation plans in respect to its directors and employees. Share-based compensation costs are measured based on the grant date fair value of the equity-settled instruments and recognized upon grant date over the related service period in the consolidated statements of earnings (loss) and credited to contributed surplus within shareholders’ equity. The Company uses the graded vesting method for attributing share option expense over the vesting period. The grant date fair value is based on the underlying market price of the common shares of the Company taking into account the terms and conditions upon which those equity-settled instruments were granted. The fair value of equity-settled instruments granted is estimated using the Black-Scholes model or other appropriate method and assumptions at grant date. Equity-settled awards are not re-measured subsequent to the initial grant date. Determination of the grant date fair value requires management estimates such as risk-free interest rate, volatility and weighted average expected life. Share option expense incorporates an expected forfeiture rate which is estimated based on historical forfeiture rates and expectations of future forfeiture rates. The Company makes adjustments if the actual forfeiture rate differs from the expected rate. The weighted average grant date fair value is the basis for which share-based compensation is recognized in earnings. Upon exercise of options and/or issuance of shares, consideration paid by the holder, as well as the grant date fair value of the equity-settled instruments, are transferred to common shares. (ii) Share purchase plan The Company has adopted a share purchase plan where the Company contributes towards the purchase of shares on the open market. The Company’s contribution vests on December 31 of each year and is charged to earnings in the year of contribution.
Revenue recognition	Revenues include sales of gold and by-products. The Company recognizes revenue when it transfers control of a product to the customer. The principal activity from which the Company generates its revenue is the sale of gold to third parties. Delivery of the gold is considered to be the only performance obligation. Revenue is measured based on the consideration specified in the contract with the customer.
Deferred revenue	Deferred revenue is recognized in the consolidated balance sheets when a cash prepayment is received from a customer prior to the sale of gold. Revenue is subsequently recognized in the consolidated statements of earnings (loss) when control has been transferred to the customer. The Company recognizes the time value of money, where there is a significant financing component and the period between the payment by the customer and the transfer of the contracted goods exceeds one year. Interest expense on deferred revenue is recognized in finance costs in the consolidated statements of earnings (loss), unless capitalized to construction in progress in accordance with the Company’s policy on capitalized borrowing costs.
Leases	At inception of a contract, the Company assesses whether a contract is, or contains, a lease by determining whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. A right-of-use ("ROU") asset and lease liability is recognized at the lease commencement date. The ROU asset is initially measured at cost, which comprises the initial amount of the lease liability adjusted for any lease payments made at or before the commencement date, plus any initial direct costs incurred, less any lease incentives received. The ROU asset is subsequently depreciated using the straight-line method from the commencement date to the end of the lease term, including periods covered by an option to extend the lease if the Company is reasonably certain to exercise that option. In addition, the ROU asset is periodically reduced by impairment losses, if any, and adjusted for certain remeasurements of the lease liability. The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date. The lease payments are discounted using the implicit interest rate in the lease. Variable lease payments that do not depend on an index or rate are not included in the measurement of the lease liability. If the rate cannot be readily determined, the Company’s incremental rate of borrowing is used. Generally, the Company uses its incremental borrowing rate as the discount rate. The lease liability is subsequently measured at amortized cost using the effective interest method whereby the balance is increased by interest expense and decreased by lease payments. It is remeasured when there is a change in future lease payments arising from a change in an index or rate, if there is a change in the Company’s estimate of the amount expected to be payable under a residual value guarantee, or if the Company changes its assessment of whether it will exercise a purchase, extension or termination option. The Company presents ROU assets within property, plant and equipment. The Company has elected not to recognize ROU assets and lease liabilities for leases that have a lease term of 12 months or less and leases of low-value assets. The Company recognizes the lease payments associated with these leases as an expense on a straight-line basis over the lease term.
Segmented information	The Company’s operating segments are those operations whose operating results are reviewed by the Company’s chief operating decision maker ("CODM") to make resource allocation decisions and assess their performance. The Company's CODM is its executive leadership team. Operating segments whose revenues, net earnings or losses or assets exceed 10% of the total consolidated revenues, net earnings or losses or assets, are reportable segments.
Significant accounting judgements, estimates and assumptions	The preparation of consolidated financial statements in conformity with IFRS requires management to make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities and contingent liabilities at the date of the consolidated financial statements and reported amounts of revenues and expenses during the reporting period. Estimates and assumptions are continuously evaluated and are based on management’s experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. Assumptions about the future and other major sources of estimation uncertainty at the end of the reporting period have a significant risk of resulting in a material adjustment to the carrying amounts of assets and liabilities, within the next financial year. The most significant judgments and sources of estimation uncertainty that the Company believes could have a significant impact on the amounts recognized in its consolidated financial statements are described below. (i) Mineral reserves and resources Key sources of estimation uncertainty Mineral reserves and resources have been estimated by qualified persons as defined in accordance with Canadian Securities Administrators’ National Instrument 43-101 Standards of Disclosure for Mineral Projects requirements. Mineral reserve and resource estimates include numerous uncertainties and depend heavily on geological interpretations and statistical inferences drawn from drilling and other data, and require estimates of the future price for the commodity and the future cost of operations. The mineral reserve and resource estimates are subject to uncertainty and actual results may vary from these estimates. Results from drilling, testing and production, as well as material changes in metal prices and operating costs subsequent to the date of an estimate, may justify revision of such estimate. A number of accounting estimates, as described in the relevant accounting policy notes, are impacted by the mineral reserve and resource estimates, which form the basis of the Company's LOM plans: • Capitalization and depreciation of stripping costs (note 3(c)(iii)); • Determination of the useful life of property, plant and equipment and measurement of the depreciation expense (note 3(d)); • Exploration and evaluation of mineral resources and determination of technical feasibility and commercial viability (note 3(e)). The application of the Company’s accounting policy for exploration and evaluation expenditures requires judgment in determining whether future economic benefits may be realized, which are based on assumptions about future events and circumstances; • Impairment and reversal of impairment analysis of non-financial assets including evaluation of estimated future cash flows of CGUs (note 3(g)(ii)); and • Estimates of timing of cash outlays for AROs (note 3(h)). (ii) Impairment and reversal of impairment assessment of non-financial assets Key sources of estimation uncertainty Management’s assumptions and estimates of future cash flows used in the Company’s impairment assessment of non-financial assets are subject to risk and uncertainties, particularly in market conditions where higher volatility exists, and may be partially or totally outside of the Company's control. If an indication of impairment or reversal of a previous impairment charge exists, or if an exploration and evaluation asset is determined to be technically feasible and commercially viable, an estimate of a CGU's recoverable amount is calculated. The recoverable amount is based on the higher of FVLCD and VIU using a discounted cash flow methodology taking into account assumptions that would be made by market participants, unless there is a market price available based on a recent purchase or sale of a mine. Cash flows are for periods up to the date that mining is expected to cease which depends on a number of variables including recoverable mineral reserves and resources, expansion plans and the forecasted selling prices for such production (note 28). In estimating the net realizable value of inventories, a significant estimate is made regarding the quantities of saleable metals included in stockpiles based on the quantities of ore, the grade of ore, the estimated recovery percentage, cost to complete and long-term commodity prices. There can be no assurance that actual quantities will not differ significantly from estimates used (note 11). Judgments Judgement is required in determining whether an indicator of impairment or impairment reversal exists at period end. Both internal and external sources of information are required to be considered when determining the presence of an impairment indicator or an indicator of reversal of a previous impairment. External sources of information the Company considers include changes in the market, economic and legal environment in which the Company operates that are not within its control and are expected to affect the recoverable amount of CGUs. Internal sources of information the Company considers include the manner in which mineral properties, plant and equipment are being used or are expected to be used and measures of economic performance of the assets. The primary external factors considered are changes in forecast metal prices, changes in laws and regulations and the Company’s market capitalization relative to its net asset carrying amount. The primary internal factors considered are the Company’s current mine performance against expectations, changes in mineral reserves and resources, and life of mine plans. Judgment is required to determine whether there are indications that the carrying amount of an exploration project is unlikely to be recovered in full from the successful development or the sale of the project. (iii) Derivative financial instruments Judgments Judgment is required to determine if an effective hedging relationship exists throughout the financial reporting period for derivative financial instruments classified as cash flow hedges. Management assesses the relationships on an ongoing basis to determine if hedge accounting is appropriate. Key sources of estimation uncertainty The Company monitors on a regular basis its hedge position for its risk exposure to fluctuations of the U.S. dollar compared to other currencies, and fluctuations in prices of commodities such as oil and gold. Forecasts are based on estimates of future transactions. For its derivative contracts, valuations are based on forward rates considering the market price, rate of interest and volatility, and take into account the credit risk of the financial instrument. Refer to note 20 for more detailed information and sensitivity analyses based on changes in currencies and commodity prices. (iv) Provisions and recognition of a liability for loss contingencies Judgments Judgments are required to determine if a present obligation exists at the end of the reporting period by considering all available evidence, including the opinion of experts. The most significant provisions that require judgment to determine if a present obligation exists are contingent losses related to claims and AROs. This includes an assessment of how to account for obligations based on the most recent closure plans and environmental regulations. Key sources of estimation uncertainty Provisions related to present obligations, including AROs, are management’s best estimate of the amount of probable future outflow, expected timing of payments, and discount rates if the effect of discounting is material. Refer to note 14(a). (v) Deferred revenue Judgments In assessing the accounting for the Company’s forward gold sale arrangement (note 19), the Company used judgment to determine that the upfront cash prepayment received was not a financial liability as the sale is expected to be settled through the delivery of gold, which is a non-financial item rather than through cash or other financial assets. It is the Company’s intention to settle these arrangements through its own production. If such settlement is not expected to occur, the forward gold sale arrangement would become a financial liability as a cash settlement may be required.

BASIS OF PREPARATION (Tables)

BASIS OF PREPARATION (Tables)	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Disclosure of subsidiaries	Subsidiaries and divisions related to significant properties of the Company are accounted for as outlined below. Name Property December 31, December 31, Type of Accounting Côté Gold division 1,2 Côté Gold mine 70% 70% Division Proportionate share IAMGOLD Essakane S.A. ("Essakane S.A.") Essakane mine (Burkina Faso) 90% 90% Subsidiary Consolidation Westwood division 1 Westwood complex (Canada) 100% 100% Division Consolidation Vanstar Resources Inc. 3 ("Vanstar") Nelligan Gold project (Canada) 100% —% Subsidiary Consolidation 1. Part of IAMGOLD Corporation. The Westwood division includes the closed Doyon mine ("Doyon"). 2. Prior to the Sumitomo Metal Mining Co. Ltd. ("SMM") financing arrangement entered into during December 2022 (note 8), the Company held a 70% interest in Côté Gold through an unincorporated joint venture with SMM (the "Côté UJV"). The Company's interest was diluted to 60.3% as part of the arrangement, however, the Company will continue to account for 70% of the interest. On September 30, 2024, the Company provided SMM with a formal irrevocable notice to repurchase the 9.7% interest of Côté Gold, and the repurchase was effected on November 30, 2024, returning the Company to a 70% interest in Côté Gold (note 8). A third party holds a 7.5% net profits interest in the mineral tenure comprising the project. 3. On February 13, 2024, the Company acquired all of the issued and outstanding common shares of Vanstar (note 5(a)). Vanstar owned a 25% interest in the Nelligan Gold project, with the remaining 75% interest owned by IAMGOLD Corporation.
Disclosure of joint ventures	Subsidiaries and divisions related to significant properties of the Company are accounted for as outlined below. Name Property December 31, December 31, Type of Accounting Côté Gold division 1,2 Côté Gold mine 70% 70% Division Proportionate share IAMGOLD Essakane S.A. ("Essakane S.A.") Essakane mine (Burkina Faso) 90% 90% Subsidiary Consolidation Westwood division 1 Westwood complex (Canada) 100% 100% Division Consolidation Vanstar Resources Inc. 3 ("Vanstar") Nelligan Gold project (Canada) 100% —% Subsidiary Consolidation 1. Part of IAMGOLD Corporation. The Westwood division includes the closed Doyon mine ("Doyon"). 2. Prior to the Sumitomo Metal Mining Co. Ltd. ("SMM") financing arrangement entered into during December 2022 (note 8), the Company held a 70% interest in Côté Gold through an unincorporated joint venture with SMM (the "Côté UJV"). The Company's interest was diluted to 60.3% as part of the arrangement, however, the Company will continue to account for 70% of the interest. On September 30, 2024, the Company provided SMM with a formal irrevocable notice to repurchase the 9.7% interest of Côté Gold, and the repurchase was effected on November 30, 2024, returning the Company to a 70% interest in Côté Gold (note 8). A third party holds a 7.5% net profits interest in the mineral tenure comprising the project. 3. On February 13, 2024, the Company acquired all of the issued and outstanding common shares of Vanstar (note 5(a)). Vanstar owned a 25% interest in the Nelligan Gold project, with the remaining 75% interest owned by IAMGOLD Corporation.

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	12 Months Ended
	Dec. 31, 2024
Acquisition [Abstract]
Schedule of purchase price allocation of acquisition	The total purchase price was allocated to the assets acquired and the liabilities assumed based on the fair value of the total consideration transferred at the closing date of the acquisition. February 13, 2024 Assets acquired and liabilities assumed Exploration and evaluation assets $ 29.3 Current assets 0.3 $ 29.6 Consideration transferred Share consideration $ 28.2 Less: Cash and cash equivalents acquired (0.1) 28.1 Transaction costs 1.5 $ 29.6

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	12 Months Ended
	Dec. 31, 2024
Disclosure of Non-current assets held for sale and discontinued operations [Abstract]
Disclosure Of Assets And Liabilities From Discontinued Operations	On closing, the Company recognized a loss on disposal of $7.4 million, net of income tax, calculated as follows: January 31, 2023 Proceeds received on closing $ 360.0 Cash and cash equivalents transferred since closing 39.4 Working capital (3.4) Transaction costs (8.7) Net proceeds $ 387.3 Cash and cash equivalents $ 39.8 Receivables and other current assets 26.7 Inventories 153.7 Property, plant and equipment 446.2 Other non-current assets 10.5 Accounts payable and accrued liabilities (76.0) Provisions (103.8) Other liabilities (89.1) Net carrying amount, January 31, 2023 408.0 Non-controlling interest (13.3) Net assets attributable to IAMGOLD $ 394.7 Less: net proceeds 387.3 Loss on sale of Rosebel $ 7.4 The Company recognized a gain on disposal of the Senegal Assets of $109.1 million calculated as follows: 2023 Proceeds $ 197.6 Transaction costs (3.7) Net proceeds $ 193.9 Cash and cash equivalents $ 1.4 Property, plant and equipment 83.3 Other non-current assets 1.1 Accounts payable and accrued liabilities (0.6) Net carrying amount, April 25, 2023 85.2 Non-controlling interest (0.4) Net assets attributable to IAMGOLD 84.8 Less: net proceeds 193.9 Pre-tax gain on sale of Senegal Assets $ 109.1 The Company recognized a gain on disposal of the Guinea Assets of $34.1 million calculated as follows: December 23, 2024 Proceeds on closing $ 27.4 Purchase price adjustment 8.1 Transaction costs (1.4) Net proceeds and pre-tax gain on sale of Guinea Assets $ 34.1 December 31, 2023 Assets classified as held-for-sale Cash and cash equivalents $ 0.5 Exploration and evaluation assets 34.1 $ 34.6 Liabilities classified as held-for-sale Accounts payable and accrued liabilities $ 5.6 $ 5.6
Disclosure of net (loss) earnings from discontinued operations	The net earnings (loss) from discontinued operations from the Rosebel Mine, which include the results of operating activities for the year ended December 31, 2023 is as follows: Year ended December 31, 2023 1 Revenues $ 47.2 Cost of sales (23.8) Exploration expenses (0.1) Other expenses (1.3) Finance costs (0.1) Foreign exchange gain (loss) (0.2) 21.7 Income tax (8.0) Net earnings (loss) from discontinued operations before disposal $ 13.7 Loss on sale of Rosebel (7.4) Net earnings (loss) from discontinued operations $ 6.3 1. Amounts disclosed for 2023 are for the period until January 31, 2023, the date the transaction closed.

ASSETS AND LIABILITIES HELD F_2

ASSETS AND LIABILITIES HELD FOR SALE (Tables)	12 Months Ended
	Dec. 31, 2024
Asset and Liabilities Held For Sale [Abstract]
Disclosure Of Assets And Liabilities From Discontinued Operations	On closing, the Company recognized a loss on disposal of $7.4 million, net of income tax, calculated as follows: January 31, 2023 Proceeds received on closing $ 360.0 Cash and cash equivalents transferred since closing 39.4 Working capital (3.4) Transaction costs (8.7) Net proceeds $ 387.3 Cash and cash equivalents $ 39.8 Receivables and other current assets 26.7 Inventories 153.7 Property, plant and equipment 446.2 Other non-current assets 10.5 Accounts payable and accrued liabilities (76.0) Provisions (103.8) Other liabilities (89.1) Net carrying amount, January 31, 2023 408.0 Non-controlling interest (13.3) Net assets attributable to IAMGOLD $ 394.7 Less: net proceeds 387.3 Loss on sale of Rosebel $ 7.4 The Company recognized a gain on disposal of the Senegal Assets of $109.1 million calculated as follows: 2023 Proceeds $ 197.6 Transaction costs (3.7) Net proceeds $ 193.9 Cash and cash equivalents $ 1.4 Property, plant and equipment 83.3 Other non-current assets 1.1 Accounts payable and accrued liabilities (0.6) Net carrying amount, April 25, 2023 85.2 Non-controlling interest (0.4) Net assets attributable to IAMGOLD 84.8 Less: net proceeds 193.9 Pre-tax gain on sale of Senegal Assets $ 109.1 The Company recognized a gain on disposal of the Guinea Assets of $34.1 million calculated as follows: December 23, 2024 Proceeds on closing $ 27.4 Purchase price adjustment 8.1 Transaction costs (1.4) Net proceeds and pre-tax gain on sale of Guinea Assets $ 34.1 December 31, 2023 Assets classified as held-for-sale Cash and cash equivalents $ 0.5 Exploration and evaluation assets 34.1 $ 34.6 Liabilities classified as held-for-sale Accounts payable and accrued liabilities $ 5.6 $ 5.6

UNINCORPOATED ARRANGEMENT SMM_2

UNINCORPOATED ARRANGEMENT SMM FUNDING ARRANGEMENT (Tables)	12 Months Ended
	Dec. 31, 2024
Joint Arrangements [Abstract]
Schedule of Repurchase Option Liability	The Côté repurchase option liability as at December 31, 2024 consists of: December 31, December 31, Notes 2024 2023 Repurchase price: Balance, beginning of the year $ 350.8 $ — Funding obligations contributed by SMM — 250.0 Incremental funding by SMM due to increased ownership 46.9 77.1 Repurchase option fee included in repurchase price 1 — 23.7 9.7% pre-Commercial Production gold received by SMM 31 (18.4) — Other (1.6) — Repurchase of Transferred Interests (377.7) — Balance, end of the year — 350.8 Fees and balances not included in repurchase price: Balance, beginning of the year (5.5) — Repurchase option fee accrued 1 30 32.7 — Repurchase option fee paid 1 (32.7) — Deferred cost on waiver of operator fee (2.0) (6.5) Amortization of deferred operator fee 7.5 1.0 Balance, end of the year $ — $ (5.5) Côté repurchase option liability $ — $ 345.3 Current portion $ — $ — Non-current portion $ — $ 345.3 $ — $ 345.3 1. Repurchase option fees of $17.5 million (December 31, 2023 - $23.7 million) were capitalized to Côté Gold construction in progress. Subsequent to August 1, 2024, the repurchase option fees are included in finance costs (note 30). Commencing in 2024, the repurchase option fee was paid quarterly.

RECEIVABLES AND OTHER CURRENT_2

RECEIVABLES AND OTHER CURRENT ASSETS (Tables)	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Components of receivables and other current assets	Notes December 31, December 31, Receivables from governments $ 26.7 $ 61.0 Gold receivables 3.1 — Other receivables 4.9 6.8 Total receivables 34.7 67.8 Short-term investments 1.0 — Prepaid expenses 13.2 10.6 Hedge derivatives 20(b)(i) — 7.3 $ 48.9 $ 85.7

INVENTORIES (Tables)

INVENTORIES (Tables)	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Disclosure of inventories	December 31, December 31, Finished goods $ 56.5 $ 33.8 Ore stockpiles 50.8 55.7 Mine supplies 164.6 176.8 271.9 266.3 Non-current ore stockpiles 153.0 106.5 $ 424.9 $ 372.8

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2024
Property, plant and equipment [abstract]
Disclosure of property, plant and equipment	Construction Mining Plant and Right-of-use assets 1 Total Cost Balance, January 1, 2023 $ 1,563.9 $ 2,506.8 $ 1,498.2 $ 85.4 $ 5,654.3 Additions 866.5 138.9 56.2 79.7 1,141.3 Changes in asset retirement obligations — 36.2 — — 36.2 UJV lease adjustment (4.0) — — (25.4) (29.4) Disposals (5.5) — (11.6) (0.5) (17.6) Transfers within property, plant and equipment (11.5) (0.1) 11.8 (0.2) — Transfers from exploration and evaluation assets — 11.1 — — 11.1 Balance, December 31, 2023 $ 2,409.4 $ 2,692.9 $ 1,554.6 $ 139.0 $ 6,795.9 Additions 320.0 253.4 71.0 34.8 679.2 Changes in asset retirement obligations — (21.4) — — (21.4) Disposals/derecognition — — (41.7) (8.6) (50.3) Transfers of Côté Gold Construction in progress (2,367.1) 1,098.8 1,268.3 — — Transfers within property, plant and equipment (254.7) 96.1 158.9 (0.3) — Balance, December 31, 2024 $ 107.6 $ 4,119.8 $ 3,011.1 $ 164.9 $ 7,403.4 Construction Mining Plant and Right-of-use assets 1 Total Accumulated Depreciation and Impairment Balance, January 1, 2023 $ — $ 1,963.1 $ 1,078.9 $ 14.3 $ 3,056.3 Depreciation expense — 141.4 90.8 22.7 254.9 Disposals — — (11.3) (0.5) (11.8) Transfers within property, plant and equipment — (11.5) 11.5 — — Balance, December 31, 2023 $ — $ 2,093.0 $ 1,169.9 $ 36.5 $ 3,299.4 Depreciation expense 2 — 157.2 116.8 29.0 303.0 Disposals/derecognition — — (40.8) (7.9) (48.7) Net impairment (reversal) charge — (371.8) (46.6) (1.3) (419.7) Balance, December 31, 2024 $ — $ 1,878.4 $ 1,199.3 $ 56.3 $ 3,134.0 Carrying amount, December 31, 2023 $ 2,409.4 $ 599.9 $ 384.7 $ 102.5 $ 3,496.5 Carrying amount, December 31, 2024 $ 107.6 $ 2,241.4 $ 1,811.8 $ 108.6 $ 4,269.4 1. Right-of-use assets ("ROU assets") consist of property, plant and equipment related to assets leased and accounted for under IFRS 16. 2.

OTHER NON-CURRENT ASSETS (Table

OTHER NON-CURRENT ASSETS (Tables)	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Schedule of Other Non-Current Assets	Notes December 31, December 31, Receivables from governments 1 $ 66.3 $ — Advances for the purchase of capital equipment 16.4 18.5 Deferred consideration from the sale of Sadiola 2 18.3 15.2 Royalty interests 3 12.8 13.5 Marketable securities 21(a) 10.3 14.2 Long-term prepayment 2.9 3.3 Income taxes receivable 1.0 3.7 Bond fund investments 21(a) 1.0 2.0 Other 6.7 5.9 $ 135.7 $ 76.3 1. Receivables from governments relate primarily to value added taxes in Burkina Faso (note 10). 2. Includes deferred consideration on litigation settlement of $1.2 million and on milestone payments of $17.1 million. 3. Includes royalty interests in the Pitangui Project and Bomboré Project.

PROVISIONS (Tables)

PROVISIONS (Tables)	12 Months Ended
	Dec. 31, 2024
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract]
Disclosure of provisions	Notes December 31, December 31, Asset retirement obligations (a) $ 279.6 $ 347.4 Other 20.0 18.1 $ 299.6 $ 365.5 Current portion of provisions $ 14.5 $ 5.4 Non-current provisions 285.1 360.1 $ 299.6 $ 365.5 The following table presents the reconciliation of the provision for asset retirement obligations: Years ended December 31, Notes 2024 2023 Balance, beginning of the year $ 347.4 $ 298.5 Revision of estimated cash flows and discount rates: Capitalized in property, plant and equipment 12 (21.4) 36.2 Changes in asset retirement obligations at closed mines 29 (13.4) 9.7 Impairment reversal 28 (35.8) — Accretion expense 30 5.7 5.0 Disbursements (2.9) (2.0) Balance, end of the year $ 279.6 $ 347.4 Less: current portion (14.5) (5.4) Non-current portion $ 265.1 $ 342.0
Disclosure of asset retirement obligations	As at December 31, 2024, the schedule of estimated undiscounted future disbursements for rehabilitation was as follows: CAD$ million 1 $ million 1 2025 $ 22.7 $ 1.4 2026 24.0 2.6 2027 12.3 2.8 2028 5.9 4.2 2029 2.6 6.9 2030 onwards 325.9 82.6 $ 393.4 $ 100.5 1. Disbursements in US$ relate to the Essakane mine and CAD$ disbursements relate to the Westwood division, including Doyon, Côté Gold and other closed Canadian sites. As at December 31, 2024, estimated undiscounted amounts of cash flows required to settle the obligations and expected timing of payments assumed in measuring the asset retirement obligations were as follows: Undiscounted Undiscounted Expected Timing of Payments Côté Gold mine $ 107.3 $ — 2025-2087 Essakane mine — 100.5 2025-2050 Westwood division, including Doyon 280.6 — 2025-2054 Other Canadian sites 5.5 — 2025-2124 $ 393.4 $ 100.5

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2024
Disclosure of leases [Abstract]
Disclosure of quantitative information about right-of-use assets	Years ended December 31, Notes 2024 2023 Balance, beginning of year $ 121.3 $ 73.8 Additions 34.1 79.7 Interest expense 8.4 7.5 Foreign exchange impact (11.0) 1.0 Principal lease payments 34(d) (20.6) (6.0) Interest payments (8.0) (5.3) UJV lease adjustment 12 — (29.4) Balance, end of year $ 124.2 $ 121.3 Current portion $ 28.8 $ 21.1 Non-current portion 95.4 100.2 $ 124.2 $ 121.3 Years ended December 31, 2024 2023 Amounts recognized in statement of earnings (loss): Short-term and low-value leases $ 43.7 $ 25.6 Variable lease payments $ 4.6 $ 12.0

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2024
Income Taxes [Abstract]
Income tax expense/(recoveries) components	Years ended December 31, 2024 2023 Current income taxes: Canadian current income taxes $ 11.6 $ 3.6 Foreign current income taxes 104.8 48.3 116.4 51.9 Deferred income taxes: Canadian deferred income taxes - origination and reversal of temporary differences 7.3 — Foreign deferred income taxes - origination and reversal of temporary differences 5.5 (21.2) Changes in tax rates or imposition of new taxes 0.2 — 13.0 (21.2) Total income tax expense (recovery) $ 129.4 $ 30.7
Income tax expense/(recoveries) rate reconciliation	These factors are illustrated below on all of the consolidated earnings (loss) before income taxes after applying a tax rate of 26.5%, reflecting the combined federal and provincial Canadian statutory corporate income tax rates which apply to the Company as a legal entity for the years ended December 31, 2024 and December 31, 2023: Years ended December 31, 2024 2023 Earnings (loss) before income taxes $ 977.2 $ 128.2 Income tax provision - 26.5% $ 259.0 $ 34.0 Increase (reduction) in income taxes resulting from: Earnings in foreign jurisdictions subject to a different tax rate than 26.5% (36.5) (31.9) Permanent items that are not included in income (losses) for tax purposes: Non-deductible expenses (4.4) (0.9) Income (losses) not recognized for tax purposes 0.6 (3.5) Tax provisions not based on legal entity income or losses for the year: Provincial mining duty tax 15.9 3.8 Non-resident withholding tax 14.3 5.5 Under (over) tax provisions 3.0 0.3 Changes in tax rates 0.2 — Other 0.5 0.3 Other adjustments: Change in unrecognized deferred tax assets (133.6) 21.4 Foreign exchange related to deferred income taxes 10.7 (2.2) Taxes paid relating to sale of assets — 4.1 Other (0.3) (0.2) Total income tax expense (recovery) $ 129.4 $ 30.7
Components of deferred income tax assets and liabilities	The components that give rise to deferred income tax assets and liabilities are as follows: Years ended December 31, 2024 2023 Deferred income tax assets: Exploration and evaluation assets $ 283.3 $ 442.4 Asset retirement obligations 52.6 — Côté Gold repurchase option — 91.5 Other assets 61.3 43.8 397.2 577.7 Deferred income tax liabilities: Property, plant and equipment (383.1) (572.8) Mining duties (7.4) — Other liabilities (20.7) (5.6) (411.2) (578.4) Net deferred income tax liabilities $ (14.0) $ (0.7) Classification: Non-current assets $ — $ — Non-current liabilities (14.0) (0.7) $ (14.0) $ (0.7) The 2024 movement for net deferred income tax liabilities is summarized as follows: December 31, 2023 Statements OCI December 31, 2024 Deferred income tax assets: Exploration and evaluation assets $ 442.4 $ (159.1) $ — $ 283.3 Asset retirement obligations — 52.6 — 52.6 Côté Gold repurchase option 91.5 (91.5) — — Other assets 43.8 17.6 (0.1) 61.3 Deferred income tax liabilities: Property, plant and equipment (572.8) 189.7 — (383.1) Mining duties — (7.4) — (7.4) Other liabilities (5.6) (14.9) (0.2) (20.7) $ (0.7) $ (13.0) $ (0.3) $ (14.0) The 2023 movement for net deferred income tax liabilities is summarized as follows: December 31, 2022 Statements OCI December 31, 2023 Deferred income tax assets: Exploration and evaluation assets $ 307.7 $ 134.7 $ — $ 442.4 Asset retirement obligations 2.5 (2.5) — — Côté Gold repurchase option — 91.5 — 91.5 Other assets 34.3 8.8 0.7 43.8 Deferred income tax liabilities: Property, plant and equipment (355.3) (217.5) — (572.8) Other liabilities (11.8) 6.2 — (5.6) $ (22.6) $ 21.2 $ 0.7 $ (0.7)
Income tax expense/(recoveries) related to OCI	Income tax expense (recoveries) related to OCI consisted of the following components: Years ended December 31, 2024 2023 Unrealized change in fair value of marketable securities $ 0.2 $ — Hedges 0.1 (0.7) Total income taxes related to OCI $ 0.3 $ (0.7)
Disclosure of unrecognized deferred income tax assets	Deferred income tax assets have not been recognized in respect of the following deductible temporary differences: Years ended December 31, 2024 2023 Non-capital losses $ 778.7 $ 1,099.1 Net capital losses 93.8 104.4 Exploration and evaluation assets 155.4 338.6 Deduction for future mining duty taxes 18.9 18.9 Asset retirement obligations — 265.3 Other deductible temporary differences 10.8 0.1 Excessive interest and financing expenses 60.7 — $ 1,118.3 $ 1,826.4 The net capital loss carry forwards are restricted in use against capital gains but may be carried forward indefinitely. The exploration and evaluation assets may be carried forward indefinitely. At December 31, 2024, the non-capital loss carry forwards expire as follows: Expiry Date 2025 2026 2027 2028 2029+ No Expiry Total Total unrecognized losses $ 44.4 $ 21.2 $ 11.3 $ 9.1 $ 664.4 $ 28.3 $ 778.7

OTHER LIABILITIES (Tables)

OTHER LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]
Components of derivative liabilities	Notes December 31, December 31, Hedge derivatives 20(b)(i) $ 9.8 $ 9.2 Non-hedge derivatives — 1.9 Yatela liability (a) 18.5 18.5 Other liabilities 0.1 — $ 28.4 $ 29.6 Current portion of other liabilities $ 27.7 $ 29.6 Non-current portion of other liabilities 0.7 — $ 28.4 $ 29.6

LONG-TERM DEBT AND CREDIT FAC_2

LONG-TERM DEBT AND CREDIT FACILITY (Tables)	12 Months Ended
	Dec. 31, 2024
Financial Instruments [Abstract]
Disclosure of detailed information about borrowings	Notes December 31, December 31, Credit facility (a) $ 220.0 $ — 5.75% senior notes (b) 448.4 448.0 Second lien term loan (c) 358.4 375.6 Equipment loans (d) 2.1 7.2 $ 1,028.9 $ 830.8 Current portion of long-term debt $ 1.0 $ 5.0 Non-current portion of long-term debt 1,027.9 825.8 $ 1,028.9 $ 830.8 The following are the contractual maturities related to the long-term debts, including interest payments: Payments due by period December 31, 2024 Notes Carrying amount Contractual cash flows 1 yr 2-3 yrs 4-5 yrs Notes 1 (b) $ 450.0 $ 553.5 $ 25.9 $ 51.8 $ 475.8 Term Loan 2 (c) $ 400.0 $ 565.2 $ 49.2 $ 97.7 $ 418.3 Equipment loans (d) $ 2.1 $ 2.1 $ 1.0 $ 1.1 $ — 1. The carrying amount excludes unamortized deferred transaction costs of $3.6 million and the embedded derivative. 2. The carrying amount excludes unamortized deferred transaction costs of $3.7 million, the 3% original discount and the embedded derivative. 3. Excludes the amounts drawn on the credit facility, which can be repaid at any time prior to maturity in 2028. Years ended December 31, Notes 2024 2023 Available amount under Credit Facility, beginning of year $ 387.0 $ 26.6 Increase (decrease) in available amount under Credit Facility 1 225.0 (75.0) Draws 2 34(e) (280.0) — Repayments 34(e) 60.0 455.0 Increase (decrease) in letters of credit 3 26.5 (19.6) Available amount under Credit Facility, end of year $ 418.5 $ 387.0 1. The amendment was determined to be a substantial modification to the Credit Facility, and therefore was accounted for as a debt extinguishment. 2. On November 20, 2024, the Company drew $220.0 million on the Credit Facility 3.

DEFERRED REVENUE (Tables)

DEFERRED REVENUE (Tables)	12 Months Ended
	Dec. 31, 2024
Disclosure of revenue from contracts with customers [Abstract]
Disclosure of changes in deferred income	The following table summarizes the change in deferred revenue: Notes 2022 Prepay Arrangements 2024 Q1 Prepay Arrangements 2024 Q2 Prepay Arrangements Total Balance, January 1, 2023 $ 240.8 $ — $ — $ 240.8 Finance costs 30 10.8 — — 10.8 Balance, December 31, 2023 $ 251.6 $ — $ — $ 251.6 Proceeds from gold prepayment — 59.9 59.4 119.3 Deferred revenue recognized (235.7) — — (235.7) Finance costs 30 6.7 5.6 3.6 15.9 Balance, December 31, 2024 $ 22.6 $ 65.5 $ 63.0 $ 151.1 Current portion of deferred revenue $ 22.6 $ 65.5 $ 63.0 $ 151.1 Non-current deferred revenue — — — — $ 22.6 $ 65.5 $ 63.0 $ 151.1

FINANCIAL INSTRUMENTS (Tables)

FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2024
Financial Instruments [Abstract]
Disclosure of financial liabilities	The following table summarizes the maturity date and principal amount of the Company's obligations as at December 31, 2024: Notes 2025 2026 2027 2028 onwards Total Accounts payable and accrued liabilities $ 264.8 $ — $ — $ — $ 264.8 Lease liabilities 15 38.1 33.0 29.4 23.7 124.2 Equipment loans 18(d) 1.0 1.1 — — 2.1 Credit Facility 18(a) — — — 220.0 220.0 Notes 18(b) — — — 450.0 450.0 Term Loan 18(c) — — — 400.0 400.0 Gold sale prepayment arrangements 1 19 151.1 — — — 151.1 $ 455.0 $ 34.1 $ 29.4 $ 1,093.7 $ 1,612.2 1. The gold sale prepay arrangements are an obligation of the Company to deliver ounces from its production and reduces future cash flows of the Company as the arrangements have already been funded. The value in the table represents the carrying value of the deferred revenue (note 19).
Disclosure of terms and conditions of outstanding derivative contracts	As at December 31, 2024, the Company's outstanding derivative contracts which qualified for hedge accounting and the periods in which the cash flows are expected to occur and impact the consolidated statements of earnings (loss) and property, plant and equipment balance on the consolidated balance sheets are as follows: 2025 2026 Total Cash flow hedges Exchange rate risk Canadian dollar forward and option contracts (CADM) 406 72 478 Rate range (USDCAD) 1 1.35 - 1.44 1.36 - 1.44 1. The Company executed Canadian dollar collar options, which consist of Canadian dollar call and put options within the given range in 2024. The Company will recognize a gain from the difference between a lower market price and the Canadian dollar call strike price. The Company will incur a loss from the difference between a higher market price and the Canadian dollar put strike price.
Disclosure of detailed information about hedging instruments	December 31, Increase of 10% Decrease of 10% Canadian dollar (CAD$) $ (9.8) $ (37.8) $ 20.5 Canadian dollar contracts Oil contracts Gold price contracts Total Balance, January 1, 2023 $ 3.2 $ 20.4 $ (0.1) $ 23.5 Unrealized gain (loss) recognized in cash flow hedge reserve 2.9 (1.4) (2.9) (1.4) Realized (gain) loss reclassified or adjusted from cash flow hedge reserve (4.4) (12.2) 0.2 (16.4) Unrealized (gain) loss reclassified or — (0.2) — (0.2) Time value excluded from hedge relationship (0.1) (0.9) (6.4) (7.4) Balance, December 31, 2023 $ 1.6 $ 5.7 $ (9.2) $ (1.9) Unrealized gain (loss) recognized in cash flow hedge reserve (13.1) 1.6 (28.2) (39.7) Realized (gain) loss reclassified or adjusted from cash flow hedge reserve 1.7 (7.2) 30.3 24.8 Realized time value related to premiums paid — — 2.2 2.2 Time value excluded from hedge relationship — (0.1) 4.9 4.8 Balance, December 31, 2024 $ (9.8) $ — $ — $ (9.8) Consisting of: Current portion of hedge asset $ — $ — $ — $ — Non-current portion of hedge asset — — — — Current portion of hedge liability $ (9.1) $ — $ — $ (9.1) Non-current portion of hedge liability (0.7) — — (0.7) $ (9.8) $ — $ — $ (9.8) Years ended December 31, 2024 2023 Consolidated balance sheets Property, plant and equipment $ 1.0 $ (4.3) Consolidated statements of earnings (loss) Revenues 32.5 1.1 Cost of sales (6.5) (11.4) General and administrative expenses — (0.2) 26.0 (10.5) Discontinued operations — (0.6) $ 27.0 $ (15.4)

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Measurement [Abstract]
Fair value measurement of assets	The Company's fair values of financial assets and liabilities December 31, 2024 Carrying Amount Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents $ 347.5 $ 347.5 $ — $ — $ 347.5 Short-term investments 1.0 1.0 — — 1.0 Restricted cash 68.4 68.4 — — 68.4 Marketable securities 10.3 10.3 — — 10.3 Bond fund investments 1.0 1.0 — — 1.0 Deferred consideration from the sale of Sadiola 17.1 — — 17.1 17.1 Derivatives Embedded derivative - prepayment options on Term Loan 26.7 — 26.7 — 26.7 $ 472.0 $ 428.2 $ 26.7 $ 17.1 $ 472.0 Liabilities Derivatives Currency contracts $ (9.8) $ — $ (9.8) $ — $ (9.8) Long-term debt - Notes 1 (452.0) (435.8) — — (435.8) Long-term debt - Term Loan 2 (400.8) — (449.2) — (449.2) Long-term debt - equipment loans (2.1) — (2.3) — (2.3) Long-term debt - Credit Facility (220.0) — (220.0) — (220.0) $ (1,084.7) $ (435.8) $ (681.3) $ — $ (1,117.1) 1. The carrying amount excludes unamortized deferred transaction costs of $3.6 million and the embedded derivative. 2. The carrying amount excludes unamortized deferred transaction costs of $3.7 million, the 3% original discount and the embedded derivative. December 31, 2023 Carrying Amount Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents $ 367.1 $ 367.1 $ — $ — $ 367.1 Restricted cash 90.5 90.5 — — 90.5 Marketable securities and warrants 14.2 14.2 — — 14.2 Bond fund investments 2.0 2.0 — — 2.0 Deferred consideration from the sale of Sadiola 15.2 — — 15.2 15.2 Derivatives Currency contracts 1.6 — 1.6 — 1.6 Crude oil contracts 1 5.7 — 5.7 — 5.7 Embedded derivative - prepayment options on Term Loan 5.1 — 5.1 — 5.1 $ 501.4 $ 473.8 $ 12.4 $ 15.2 $ 501.4 Liabilities Derivatives Gold bullion contracts $ (9.2) $ — $ (9.2) $ — $ (9.2) TARF (1.4) — (1.4) — (1.4) Extendible Forwards (0.5) — (0.5) — (0.5) Long-term debt - Notes 2 (452.5) (388.3) — — (388.3) Long-term debt - Term Loan 3 (400.9) — (411.0) — (411.0) Long-term debt - equipment loan 4 (7.3) — (7.3) — (7.3) $ (871.8) $ (388.3) $ (429.4) $ — $ (817.7) 1. Includes hedge and non-hedge derivatives. 2. The carrying amount excludes unamortized deferred transaction costs of $4.5 million and the embedded derivative. 3. The carrying amount excludes unamortized deferred transaction costs of $8.2 million, the 3% original discount and the embedded derivative 4. The carrying amount excludes unamortized deferred transaction costs of $0.1 million.
Fair value measurement of liabilities	The Company's fair values of financial assets and liabilities December 31, 2024 Carrying Amount Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents $ 347.5 $ 347.5 $ — $ — $ 347.5 Short-term investments 1.0 1.0 — — 1.0 Restricted cash 68.4 68.4 — — 68.4 Marketable securities 10.3 10.3 — — 10.3 Bond fund investments 1.0 1.0 — — 1.0 Deferred consideration from the sale of Sadiola 17.1 — — 17.1 17.1 Derivatives Embedded derivative - prepayment options on Term Loan 26.7 — 26.7 — 26.7 $ 472.0 $ 428.2 $ 26.7 $ 17.1 $ 472.0 Liabilities Derivatives Currency contracts $ (9.8) $ — $ (9.8) $ — $ (9.8) Long-term debt - Notes 1 (452.0) (435.8) — — (435.8) Long-term debt - Term Loan 2 (400.8) — (449.2) — (449.2) Long-term debt - equipment loans (2.1) — (2.3) — (2.3) Long-term debt - Credit Facility (220.0) — (220.0) — (220.0) $ (1,084.7) $ (435.8) $ (681.3) $ — $ (1,117.1) 1. The carrying amount excludes unamortized deferred transaction costs of $3.6 million and the embedded derivative. 2. The carrying amount excludes unamortized deferred transaction costs of $3.7 million, the 3% original discount and the embedded derivative. December 31, 2023 Carrying Amount Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents $ 367.1 $ 367.1 $ — $ — $ 367.1 Restricted cash 90.5 90.5 — — 90.5 Marketable securities and warrants 14.2 14.2 — — 14.2 Bond fund investments 2.0 2.0 — — 2.0 Deferred consideration from the sale of Sadiola 15.2 — — 15.2 15.2 Derivatives Currency contracts 1.6 — 1.6 — 1.6 Crude oil contracts 1 5.7 — 5.7 — 5.7 Embedded derivative - prepayment options on Term Loan 5.1 — 5.1 — 5.1 $ 501.4 $ 473.8 $ 12.4 $ 15.2 $ 501.4 Liabilities Derivatives Gold bullion contracts $ (9.2) $ — $ (9.2) $ — $ (9.2) TARF (1.4) — (1.4) — (1.4) Extendible Forwards (0.5) — (0.5) — (0.5) Long-term debt - Notes 2 (452.5) (388.3) — — (388.3) Long-term debt - Term Loan 3 (400.9) — (411.0) — (411.0) Long-term debt - equipment loan 4 (7.3) — (7.3) — (7.3) $ (871.8) $ (388.3) $ (429.4) $ — $ (817.7) 1. Includes hedge and non-hedge derivatives. 2. The carrying amount excludes unamortized deferred transaction costs of $4.5 million and the embedded derivative. 3. The carrying amount excludes unamortized deferred transaction costs of $8.2 million, the 3% original discount and the embedded derivative 4. The carrying amount excludes unamortized deferred transaction costs of $0.1 million.

CAPITAL MANAGEMENT (Tables)

CAPITAL MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]
Disclosure of capital items	Notes December 31, 2024 December 31, 2023 Cash and cash equivalents $ 347.5 $ 367.1 Capital items: Long-term debt - Notes 1 18(b) $ 450.0 $ 450.0 Long-term debt - Term Loan 2 18(c) 400.0 400.0 Credit facility available for use 18(a) 418.5 387.0 Common shares 3,070.6 2,732.1 $ 4,339.1 $ 3,969.1 1. The carrying amount of the long-term debt excludes unamortized deferred transaction costs of $3.6 million as at December 31, 2024 (December 31, 2023 – $4.5 million) and the embedded derivative. 2.

SHARE CAPITAL (Tables)

SHARE CAPITAL (Tables)	12 Months Ended
	Dec. 31, 2024
Share Capital, Reserves And Other Equity Interest [Abstract]
Outstanding common stock rollforward	Years ended December 31, Number of common shares (in millions) Notes 2024 2023 Outstanding, beginning of the year 481.3 479.0 Equity issuance 85.2 — Issuance of flow-through common shares 1.9 — Issuance of shares for share-based compensation 25 3.0 2.3 Outstanding, end of the year 571.4 481.3

NON-CONTROLLING INTERESTS (Tabl

NON-CONTROLLING INTERESTS (Tables)	12 Months Ended
	Dec. 31, 2024
Noncontrolling Interest Disclosure [Abstract]
Financial information of subsidiaries with material non-controlling interests	Financial information of subsidiaries that have material non-controlling interests are provided below: December 31, 2024 December 31, 2023 Essakane Essakane Rosebel 1 Boto 2 Percentage of voting rights held by non-controlling interests 10% 10% 5% 10% Accumulated non-controlling interest $ 64.0 $ 54.2 $ — $ — Net earnings (loss) attributable to non-controlling interests $ 27.7 $ 6.2 $ 0.7 $ (0.2) Dividends paid to non-controlling interests 3 $ 18.0 $ 12.0 $ — $ — 1. Amounts disclosed for 2023 are for the period until January 31, 2023. The sale of the Rosebel mine, which includes the Saramacca Project, was completed on January 31, 2023 (note 6). The Rosebel mine met the criteria to be reclassified as held for sale and discontinued operations as at December 31, 2022. 2. Amounts disclosed for 2023 are for the period until April 25, 2023. The sale of the Boto Gold project was completed on April 25, 2023 (note 7). The Boto Gold project met the criteria to be classified as held for sale as at December 31, 2022. 3. For the year ended December 31, 2024, dividends paid to other non-controlling interests amounted to $nil (December 31, 2023 – $1.7 million). Selected summarized information relating to these subsidiaries are provided below, before any intercompany eliminations: December 31, 2024 December 31, 2023 Essakane Essakane Rosebel 1 Boto 2 Current assets $ 324.0 $ 330.3 $ — $ — Non-current assets 882.2 764.3 — — Current liabilities (175.0) (157.5) — — Non-current liabilities (234.1) (237.4) — — Net assets $ 797.1 $ 699.7 $ — $ — Year ended Year ended December 31, 2024 December 31, 2023 Revenues $ 1,084.3 $ 810.6 $ 47.2 $ — Net earnings (loss) and OCI $ 277.5 $ 61.9 $ 14.4 $ (1.9) Net cash from (used in) operating activities $ 444.6 $ 223.8 $ 15.4 $ (3.5) Net cash from (used in) investing activities (196.9) (137.0) (8.2) (3.2) Net cash from (used in) financing activities (185.2) (145.8) (2.0) 5.2 Net increase (decrease) in cash and cash equivalents $ 62.5 $ (59.0) $ 5.2 $ (1.5) 1. Amounts disclosed for 2023 are for the period until January 31, 2023. The sale of the Rosebel mine, which includes the Saramacca Project, was completed on January 31, 2023 (note 6). The Rosebel mine met the criteria to be reclassified as held for sale and discontinued operations as at December 31, 2022. 2.

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangements [Abstract]
Share-based compensation plans	Years ended December 31, 2024 2023 Options $ 0.8 $ 0.9 Share units 5.4 5.6 $ 6.2 $ 6.5
Share option award plan	Year ended December 31, 2024 Year ended December 31, 2023 Options Weighted (CAD/share) 1 Options Weighted average exercise price (CAD/share) Outstanding, beginning of the year 5.2 $ 4.77 4.7 $ 4.86 Granted 0.8 3.67 1.0 3.70 Exercised 2 (1.6) 5.36 (0.2) 3.26 Forfeited (0.3) 3.93 (0.1) 3.94 Expired (1.0) 5.24 (0.2) 3.26 Outstanding, end of the year 3.1 $ 4.13 5.2 $ 4.77 Exercisable, end of the year 1.4 $ 4.57 3.0 $ 5.38 1. Exercise prices are denominated in Canadian dollars. The USDCAD exchange rate at December 31, 2024 was $1.4404/CAD. 2. The weighted average share price on date of options exercised was CAD$6.56.
Disclosure of number and weighted average remaining contractual life of outstanding share options	The following table summarizes information related to options outstanding at December 31, 2024: Range of Prices Number Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price 1.01 - 5.00 2.9 4.4 $ 3.94 5.01 - 10.00 0.2 0.2 $ 6.84 3.1 4.1 $ 4.13
Inputs used in determining the fair value of the options granted	The following were the weighted average inputs to the Black-Scholes model used in determining the fair value of the options granted during the year. The estimated fair value of the options is expensed over their expected life. Years ended December 31, 2024 2023 Weighted average risk-free interest rate 3.7 % 3.5 % Weighted average expected volatility 1 58.3 % 57.7 % Weighted average dividend yield — % — % Weighted average expected life of options issued (years) 4.5 5.0 Weighted average grant-date fair value (CAD per share) $ 1.73 $ 1.88 Weighted average share price at grant date (CAD per share) $ 3.50 $ 3.63 Weighted average exercise price (CAD per share) $ 3.67 $ 3.70 1. The estimated fair value of the awards is expensed over their vesting period. Years ended December 31, 2024 2023 Granted during the year (in millions) 0.2 0.5 Grant-date fair value (CAD per share) 1 $ 5.71 $ 3.55 1. The grant-date fair value is equal to the share price on grant date.
Full value awards consisting of restricted share units	A summary of the status of the Company’s outstanding share units issued to directors and employees under the Company's share incentive plan and changes during the year is presented below. Years ended December 31, (in millions) 2024 2023 Outstanding, beginning of the year 6.1 6.3 Granted 2.7 3.4 Issued (1.4) (2.1) Forfeited and withheld for tax (0.7) (1.5) Outstanding, end of the year 6.7 6.1
Inputs used in determining fair value of restricted share units	The estimated fair value of the awards is expensed over their vesting period. Years ended December 31, 2024 2023 Granted during the year (in millions) 1.8 2.1 Grant-date fair value (CAD per share) 1 $ 3.69 $ 3.69 1. The grant-date fair value is equal to the share price on grant date. The estimated fair value of the awards is expensed over their vesting period. Years ended December 31, 2024 2023 Granted during the year (in millions) 0.7 0.8 Grant-date fair value (CAD per share) 1 $ 3.50 $ 3.65 1. The grant-date fair value was determined using a Monte Carlo model.

COST OF SALES (Tables)

COST OF SALES (Tables)	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Components of cost of sales	Years ended December 31, Notes 2024 2023 Operating costs 1 $ 715.1 $ 602.2 Royalties 36(b) 94.2 44.8 Depreciation expense 2 273.8 216.0 $ 1,083.1 $ 863.0 1. Operating costs include mine production, transport and smelter costs, and site administrative expenses. 2. Depreciation expense excludes depreciation related to corporate office assets, which is included in general and administrative expenses.

GENERAL AND ADMINSTRATIVE EXP_2

GENERAL AND ADMINSTRATIVE EXPENSES (Tables)	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Disclosure of general and administrative expenses	Years ended December 31, Notes 2024 2023 Salaries $ 24.8 $ 28.4 Restructuring costs 5.4 2.7 Directors' fees and expenses 1.0 1.4 Professional and consulting fees 8.6 9.2 Other administration costs 2.9 2.3 Share-based compensation 5.0 5.6 (Gain) loss on cash flow hedges — (0.2) Depreciation expense 1.2 1.4 $ 48.9 $ 50.8

IMPAIRMENT REVERSAL (CHARGE) (T

IMPAIRMENT REVERSAL (CHARGE) (Tables)	12 Months Ended
	Dec. 31, 2024
Disclosure of impairment of assets [Abstract]
Disclosure of Impairment Loss	Years ended December 31, 2024 2023 Fayolle Mining properties $ (6.8) $ — Westwood CGU Mining properties, Plant and equipment and ROU assets 426.5 — Asset retirement obligations 35.8 — $ 455.5 $ —

OTHER (INCOME) EXPENSES (Tables

OTHER (INCOME) EXPENSES (Tables)	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Disclosure of Other (Income) Expenses	Years ended December 31, Notes 2024 2023 Changes in asset retirement obligations at closed mines 14(a) $ (13.4) $ 9.7 Write-down of assets 0.9 1.3 Forfeiture of carbon fines 14(b) — 13.5 Settlement of carbon fines 14(b) — 15.0 Other 3.3 7.8 $ (9.2) $ 47.3

FINANCE COSTS (Tables)

FINANCE COSTS (Tables)	12 Months Ended
	Dec. 31, 2024
Borrowing costs [abstract]
Components of Financing Costs	Years ended December 31, Notes 2024 2023 Interest expense $ 95.9 $ 79.0 Accretion expense - gold prepayment 19 15.9 10.8 Repurchase option fee 8 32.7 23.7 Credit Facility fees 6.2 4.1 Accretion expense - asset retirement obligations 14(a) 5.7 5.0 Other finance costs 12.9 11.9 $ 169.3 $ 134.5 Borrowing costs attributable to qualifying assets $ (98.5) $ (113.5) $ 70.8 $ 21.0 Interest paid 1 $ 91.6 $ 68.3 1.

INTEREST INCOME, DERIVATIVES _2

INTEREST INCOME, DERIVATIVES AND OTHER INVESTMENT GAINS (LOSSES) (Tables)	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Schedule of Interest Income and Derivatives and Other Investment Gains (Losses)	Years ended December 31, Notes 2024 2023 Interest income $ 16.1 $ 27.8 Insurance recoveries 27.3 0.6 Gains (losses) on non-hedge derivatives and warrants 16.1 12.6 Amortization of gain related to flow-through common shares 1.1 — 9.7% of Côté Gold pre-Commercial Production gold received by SMM 8 18.4 — 9.7% of Côté Gold expenses funded by SMM (6.6) — Gain on sale of Pitangui and Acurui Projects — 15.5 Fair value of deferred consideration from the sale of Sadiola 1.8 (4.3) Other gains (losses) (3.3) 1.0 $ 70.9 $ 53.2

EXPENSES BY NATURE (Tables)

EXPENSES BY NATURE (Tables)	12 Months Ended
	Dec. 31, 2024
Analysis of income and expense [abstract]
Summary of expenses by nature	The following employee benefits expenses are included in cost of sales, general and administrative expenses, exploration expenses and other expenses. Years ended December 31, 2024 2023 Salaries, short-term incentives, and other benefits $ 213.7 $ 177.8 Share-based compensation 5.7 4.8 Other 6.4 4.1 $ 225.8 $ 186.7

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2024
Earnings per share [abstract]
Earnings (Loss) Per Share Computations	Years ended December 31, 2024 2023 Numerator Net earnings (loss) from continuing operations attributable to equity holders $ 819.6 $ 88.7 Net earnings (loss) from discontinued operations attributable to equity holders $ — $ 5.6 Net earnings (loss) attributable to equity holders $ 819.6 $ 94.3 Denominator (in millions) Weighted average number of common shares (basic) 539.8 480.6 Basic earnings (loss) from continuing operations per share attributable to $ 1.52 $ 0.18 Basic earnings (loss) from discontinued operations per share attributable to $ — $ 0.01 Basic earnings (loss) per share attributable to equity holders $ 1.52 $ 0.19 (b) Diluted earnings (loss) per share computation Years ended December 31, 2024 2023 Denominator (in millions) Weighted average number of common shares (basic) 539.8 480.6 Dilutive effect of options 0.7 — Dilutive effect of share units 5.4 4.0 Weighted average number of common shares (diluted) 545.9 484.6 Diluted earnings (loss) from continuing operations per share attributable to equity holders $ 1.50 $ 0.18 Diluted earnings (loss) from discontinued operations per share attributable to equity holders $ — $ 0.01 Diluted earnings (loss) per share attributable to equity holders $ 1.50 $ 0.19 Equity instruments excluded from the computation of diluted earnings (loss) per share which could be dilutive in the future were as follows: Years ended December 31, (in millions) 2024 2023 Options 0.2 5.2

CASH FLOW ITEMS (Tables)

CASH FLOW ITEMS (Tables)	12 Months Ended
	Dec. 31, 2024
Cash Flow Statement [Abstract]
Adjustments for Other Non-cash Items Within Operating Activities	(a) Adjustments for other non-cash items within operating activities Years ended December 31, Notes 2024 2023 Share-based compensation $ 5.7 $ 6.2 9.7% of Côté Gold pre-Commercial Production gold received by SMM 31 (18.4) — 9.7% of Côté Gold expenses funded by SMM 31 6.6 — Write-down (reversal) of inventories 3.6 5.9 Changes in estimates of asset retirement obligations at closed sites 29 (13.4) 9.7 Derivative (gain) loss (20.4) (22.9) Interest income 31 (16.1) (27.8) Gain on sale of Pitangui and Acurui Projects 31 — (15.5) Effects of exchange rate fluctuation on cash and cash equivalents 7.0 (1.3) Effects of exchange rate fluctuation on restricted cash 4.1 (2.8) Insurance recoveries 31 (27.3) (0.6) Other (12.0) 6.6 $ (80.6) $ (42.5)
Movements in Non-cash Working Capital Items and Non-current Ore Stockpiles	Movements in non-cash working capital items and non-current ore stockpiles Years ended December 31, 2024 2023 Receivables and other current assets $ (45.6) $ 18.0 Inventories and non-current ore stockpiles (51.4) (76.6) Accounts payable and accrued liabilities (17.4) 43.7 $ (114.4) $ (14.9)
Schedule of Other Investing Activities	Other investing activities Years ended December 31, Notes 2024 2023 Interest received $ 18.1 $ 26.3 Fayolle royalty payment — (1.1) (Increase) decrease in restricted cash (6.2) (31.0) Capital expenditures for exploration and evaluation assets (1.0) — Disposal of marketable securities 8.2 (0.4) Other (0.6) 0.9 $ 18.5 $ (5.3)
Schedule Of Other Financing Activities	Other financing activities Years ended December 31, Notes 2024 2023 Interest paid 30 $ (13.8) $ — Dividends paid to non-controlling interests (18.0) (13.7) Proceeds from issuance of flow-through common shares 23(b) 5.9 — Repayment of equipment loans 18(d) (5.1) (9.2) Payment of lease obligations 15 (20.6) (6.0) Common shares issued for cash on exercise of stock options 6.1 0.4 Other (13.5) (18.9) $ (59.0) $ (47.4)
Reconciliation of Long-term Debt Arising From Financing Activities	Reconciliation of long-term debt arising from financing activities Equipment loans 5.75% senior notes Credit facility Term Loan Total Balance, January 1, 2023 $ 16.1 $ 447.6 $ 455.0 $ — $ 918.7 Cash changes: Proceeds — — — 400.0 400.0 Deferred transaction costs — — — (23.0) (23.0) Repayments (9.2) — (455.0) — (464.2) Non-cash changes: Amortization of deferred financing charges 0.1 0.9 — 2.8 3.8 Foreign currency translation 0.2 — — — 0.2 Change in fair value of embedded derivative — — — (4.1) (4.1) Other — (0.5) — (0.1) (0.6) Balance, December 31, 2023 $ 7.2 $ 448.0 $ — $ 375.6 $ 830.8 Cash changes: Draws — — 280.0 — 280.0 Repayments (5.1) — (60.0) — (65.1) Non-cash changes: Amortization of deferred financing charges — 0.9 — 4.4 5.3 Change in fair value of embedded derivative — — — (21.6) (21.6) Other — (0.5) — — (0.5) Balance, December 31, 2024 $ 2.1 $ 448.4 $ 220.0 $ 358.4 $ 1,028.9

SEGMENTED INFORMATION (Tables)

SEGMENTED INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2024
Operating Segments [Abstract]
Schedule Of Operating Segments	December 31, 2024 December 31, 2023 Total non- Total Total Total non- Total Total Gold mines Côté Gold $ 2,887.0 $ 3,016.0 $ 227.3 $ 2,521.5 $ 2,638.0 $ 243.2 Essakane 882.2 1,206.2 281.9 764.4 1,100.4 274.2 Westwood complex 788.0 822.2 199.7 357.9 389.5 249.7 Total gold mines 4,557.2 5,044.4 708.9 3,643.8 4,127.9 767.1 Exploration and evaluation and development 74.4 77.7 9.3 37.7 47.4 1.3 Corporate 74.5 252.3 1,255.5 102.7 328.0 1,499.8 Assets held for sale 1 — — — — 34.6 5.6 Total $ 4,706.1 $ 5,374.4 $ 1,973.7 $ 3,784.2 $ 4,537.9 $ 2,273.8 1. Includes assets and liabilities held for sale relating to the remaining Bambouk assets (note 7). Year ended December 31, 2024 Consolidated statements of earnings (loss) information Capital 4 Revenues Cost of sales 1 Depreciation expense 2 General and administrative 3 Exploration Impairment Other Earnings Gold mines Côté Gold 5 $ 284.3 $ 115.0 $ 56.7 $ — $ 6.5 $ — $ 0.5 $ 105.6 $ 268.8 Essakane 1,083.2 536.8 162.3 — — — (0.3) 384.4 185.5 Westwood complex 323.0 157.5 53.7 — — (455.5) (11.6) 578.9 66.1 Total gold mines 1,690.5 809.3 272.7 — 6.5 (455.5) (11.4) 1,068.9 520.4 Exploration and evaluation and development — — — — 15.2 — 0.7 (15.9) — Corporate 6 (57.5) — 1.1 48.9 — — 1.5 (109.0) 1.6 Total $ 1,633.0 $ 809.3 $ 273.8 $ 48.9 $ 21.7 $ (455.5) $ (9.2) $ 944.0 $ 522.0 1. Excludes depreciation expense. 2. Depreciation expense excludes depreciation related to corporate office assets, which is included in general and administrative expenses. 3. Includes depreciation expense relating to corporate and exploration and evaluation assets. 4. Includes incurred capital expenditures for property, plant and equipment and exploration and evaluation assets and excludes capitalized borrowing costs and ROU assets. Côté Gold is presented at 70%. 5. Up to the achievement of Commercial Production, revenue and expenses include 60.3% of the Côté Gold UJV balances. 9.7% of the revenue and expenses from the Côté Gold UJV, $18.4 million and $6.6 million respectively, are included in interest income, derivatives and other investment gains (losses) as this was funded by SMM (note 8). Subsequent to November 30, 2024, revenue and expenses include 70% of the Côté Gold UJV balances. 6. Includes impact on revenues of delivering ounces into gold sale prepayment arrangements (note 19) and earnings from royalty interests. ______________________________ 1. The Côté Gold mine segment includes the financial information of the Côté UJV as well as other financial information for the Côté Gold mine outside of the Côté UJV. Year ended December 31, 2023 Consolidated statements of earnings (loss) information Capital 4 Revenues Cost of sales 1 Depreciation expense 2 General and administrative 3 Exploration Impairment Other Earnings Gold mines Côté Gold $ — $ — $ — $ 0.4 $ 4.2 $ — $ 1.0 $ (5.6) $ 731.6 Essakane 809.6 502.4 183.6 — — — 31.6 92.0 136.6 Westwood complex 176.6 144.6 31.3 — — — 10.4 (9.7) 65.6 Total operating gold mines 986.2 647.0 214.9 0.4 4.2 — 43.0 76.7 933.8 Exploration and evaluation and development — — — — 22.1 — 0.2 (22.3) — Corporate 5 0.9 — 1.1 50.4 — — 4.1 (54.7) 0.4 Total continuing operations $ 987.1 $ 647.0 $ 216.0 $ 50.8 $ 26.3 $ — $ 47.3 $ (0.3) $ 934.2 Discontinued operations 6 47.2 23.8 — — 0.1 — 1.3 22.0 10.8 Total $ 1,034.3 $ 670.8 $ 216.0 $ 50.8 $ 26.4 $ — $ 48.6 $ 21.7 $ 945.0 1. Excludes depreciation expense. 2. Depreciation expense excludes depreciation related to corporate office assets, which is included in general and administrative expenses. 3. Includes depreciation expense relating to corporate and exploration and evaluation assets. 4. Includes incurred capital expenditures for property, plant and equipment and exploration and evaluation assets and excludes capitalized borrowing costs and ROU assets. 5. Includes earnings from royalty interests. 6.

COMMITMENTS (Tables)

COMMITMENTS (Tables)	12 Months Ended
	Dec. 31, 2024
Commitments [Abstract]
Disclosure of Commitments and Payments Due by Period	December 31, 2024 December 31, 2023 Purchase obligations $ 155.0 $ 209.9 Capital expenditure obligations 117.2 158.8 Lease obligations 142.8 130.4 $ 415.0 $ 499.1 (a) Commitments – payments due by period As at December 31, 2024 Total 1 yr 1 2-3 yrs 2 4-5 yrs 3 >5 yrs 4 Purchase obligations $ 155.0 $ 141.6 $ 6.9 $ 2.0 $ 4.5 Capital expenditure obligations 117.2 102.3 14.9 — — Lease obligations 142.8 39.8 70.1 23.4 9.5 $ 415.0 $ 283.7 $ 91.9 $ 25.4 $ 14.0 1. Due over the period from January 1, 2025 to December 31, 2025. 2. Due over the period from January 1, 2026 to December 31, 2027. 3. Due over the period from January 1, 2028 to December 31, 2029. 4. Due from January 1, 2030 and beyond.
Disclosure of Royalty Expense Commitments	Production from certain mining operations is subject to third party royalties (included in cost of sales) based on various methods of calculation summarized as follows: December 31, 2024 December 31, 2023 Côté Gold $ 19.4 $ — Essakane 74.5 44.6 Westwood 0.3 0.2 $ 94.2 $ 44.8

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2024
Related Party [Abstract]
Related Party Transactions	Compensation breakdown for key management personnel, comprising of the Company’s directors and executive officers, is as follows: Years ended December 31, 2024 2023 Salaries and other benefits $ 5.5 $ 7.2 Retirement benefits 0.7 2.1 Share-based payments 3.2 4.2 $ 9.4 $ 13.5

BASIS OF PREPARATION (Details)

BASIS OF PREPARATION (Details)			12 Months Ended
	Nov. 30, 2024	Feb. 13, 2024	Dec. 31, 2024	Dec. 31, 2023
Disclosure of unconsolidated joint ventures/divisions [line items]
Ownership interest in unincorporated joint venture		75%
Côté Gold division
Disclosure of unconsolidated joint ventures/divisions [line items]
Ownership interest in subsidiary/divisions			70%	70%
Ownership interest in unincorporated joint venture	60.30%		70%
Proportion of ownership interest repurchase in joint venture	9.70%
Essakane mine
Disclosure of unconsolidated joint ventures/divisions [line items]
Ownership interest in subsidiary/divisions			90%	90%
Westwood
Disclosure of unconsolidated joint ventures/divisions [line items]
Ownership interest in subsidiary/divisions			100%	100%
Vanstar Resources Inc.
Disclosure of unconsolidated joint ventures/divisions [line items]
Ownership interest in subsidiary/divisions			100%	0%
Ownership interest in unincorporated joint venture		25%
Third Party
Disclosure of unconsolidated joint ventures/divisions [line items]
Net profits interest in mineral tenure held by third party			7.50%

SUMMARY OF MATERIAL ACCOUNTIN_2

SUMMARY OF MATERIAL ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2024
Plant and equipment | Bottom of range
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment useful life	3 years
Plant and equipment | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment useful life	15 years
Buildings
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment useful life	20 years

ACQUISITIONS - Narrative (Detai

ACQUISITIONS - Narrative (Details) € / shares in Units, € in Millions, shares in Millions, $ in Millions				12 Months Ended
	Feb. 13, 2024 USD ($) shares	Jan. 23, 2024 USD ($) shares	Jan. 23, 2024 EUR (€) € / shares shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Feb. 27, 2024	Dec. 31, 2022 USD ($)
Disclosure of detailed information about business combination [line items]
Cote repurchase option fee				$ 32.7	$ 0
Cash and cash equivalents				347.5	367.1		$ 407.8
Total equity				$ 3,400.7	$ 2,264.1		$ 2,206.8
Vanstar Acquisition
Disclosure of detailed information about business combination [line items]
Consideration transferred (in shares) | shares	12
Ownership interest acquired	25%
Ownership percentage	100%
Percentage of acquired royalties held	1%
Cote repurchase option fee	$ 29.6
Transaction costs	1.5
Cash and cash equivalents	$ 0.1
Number of common shares owned (in shares) | shares	0.2
Total equity	$ 0.4
Euro Ressources S.A.
Disclosure of detailed information about business combination [line items]
Consideration transferred		$ 23.7	€ 21.9
Ownership percentage		100%				90%
Percentage of acquired royalties held						10%
Transaction costs		$ 1.2
Number of common shares owned (in shares) | shares		62.5	62.5
Cash consideration per share | € / shares			€ 3.50
Non-controlling interest		$ 3
Increase (decrease) in equity		$ 20.7

ACQUISITIONS - Purchase price a

ACQUISITIONS - Purchase price allocation of acquisition (Details) - USD ($) $ in Millions	Feb. 13, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of detailed information about business combination [line items]
Exploration and evaluation assets		$ 79.6	$ 14.4
Current assets		668.3	753.7
Cash and cash equivalents acquired		$ (347.5)	$ (367.1)	$ (407.8)
Vanstar Acquisition
Disclosure of detailed information about business combination [line items]
Exploration and evaluation assets	$ 29.3
Current assets	0.3
Assets acquired and liabilities assumed	29.6
Share consideration	28.2
Cash and cash equivalents acquired	(0.1)
Consideration transferred	28.1
Transaction costs	$ 1.5

DISCONTINUED OPERATIONS - Narra

DISCONTINUED OPERATIONS - Narrative (Details) - Discontinued operations - Rosebel Mine $ in Millions	Jan. 31, 2023 USD ($)
Disclosure of analysis of single amount of discontinued operations [line items]
Ownership interest	95%
Disposal of major subsidiary
Disclosure of analysis of single amount of discontinued operations [line items]
Net proceeds received, including transaction costs	$ 396
Proceeds received on closing	360
Cash and cash equivalents transferred since closing	39.4
Working capital	3.4
Loss on sale of Rosebel	$ 7.4

DISCONTINUED OPERATIONS - Loss

DISCONTINUED OPERATIONS - Loss on disposal (Details) - USD ($) $ in Millions		12 Months Ended
	Jan. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of analysis of single amount of discontinued operations [line items]
Movements in non-cash working capital items and non-current ore stockpiles		$ (114.4)	$ (14.9)
Cash and cash equivalents		347.5	367.1	$ 407.8
Receivables and other current assets		48.9	85.7
Inventories		271.9	266.3
Property, plant and equipment		4,269.4	3,496.5
Other non-current assets		135.7	76.3
Accounts payable and accrued liabilities		(264.8)	(317.6)
Current portion of provisions		(14.5)	(5.4)
Non-controlling interests		(64)	(58.1)
Assets		5,374.4	4,537.9
Discontinued operations
Disclosure of analysis of single amount of discontinued operations [line items]
Assets		$ 0	$ 34.6
Discontinued operations | Disposal of major subsidiary | Rosebel Mine
Disclosure of analysis of single amount of discontinued operations [line items]
Proceeds received on closing	$ 360
Cash and cash equivalents transferred since closing	39.4
Movements in non-cash working capital items and non-current ore stockpiles	(3.4)
Transaction costs	(8.7)
Net proceeds	387.3
Cash and cash equivalents	39.8
Receivables and other current assets	26.7
Inventories	153.7
Property, plant and equipment	446.2
Other non-current assets	10.5
Accounts payable and accrued liabilities	(76)
Current portion of provisions	(103.8)
Other liabilities	(89.1)
Net carrying amount	408
Non-controlling interests	(13.3)
Assets	394.7
Loss on sale of Rosebel	$ 7.4

DISCONTINUED OPERATIONS - Net e

DISCONTINUED OPERATIONS - Net earnings (loss) from discontinued operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of non-current assets held for sale and discontinued operations [Line Items]
Revenues	$ 1,633	$ 987.1
Cost of sales	(1,083.1)	(863)
Exploration expenses	(21.7)	(26.3)
Finance costs	(70.8)	(21)
Foreign exchange gain (loss)	(1)	(12.8)
Earnings (loss) before income taxes	977.2	128.2
Net earnings (loss) from discontinued operations	$ 0	6.3
Discontinued operations
Disclosure of non-current assets held for sale and discontinued operations [Line Items]
Revenues		47.2
Cost of sales		(23.8)
Exploration expenses		(0.1)
Other expenses		(1.3)
Finance costs		(0.1)
Foreign exchange gain (loss)		(0.2)
Earnings (loss) before income taxes		21.7
Income tax		(8)
Net earnings (loss) from discontinued operations before disposal		13.7
Loss on sale of Rosebel		(7.4)
Net earnings (loss) from discontinued operations		$ 6.3

ASSETS AND LIABILITIES HELD F_3

ASSETS AND LIABILITIES HELD FOR SALE - Narrative (Details) - USD ($) $ in Millions				12 Months Ended
	Dec. 23, 2024	Apr. 25, 2023	Dec. 20, 2022	Dec. 31, 2024	Dec. 31, 2023
Disclosure of analysis of single amount of discontinued operations [line items]
Pre-tax gain on sale of Senegal Assets				$ 0	$ 6.3
Senegal Assets
Disclosure of analysis of single amount of discontinued operations [line items]
Gross cash proceeds		$ 197.6
Non-controlling ownership interest		10%
Guinea Assets
Disclosure of analysis of single amount of discontinued operations [line items]
Gross cash proceeds	$ 35.5
Discontinued operations
Disclosure of analysis of single amount of discontinued operations [line items]
Pre-tax gain on sale of Senegal Assets					$ 6.3
Discontinued operations | Bambouk
Disclosure of analysis of single amount of discontinued operations [line items]
Gross cash proceeds			$ 282
Consideration to be received			$ 282
Discontinued operations | Boto Gold Project
Disclosure of analysis of single amount of discontinued operations [line items]
Ownership interest		90%	90%
Discontinued operations | Senegal Assets
Disclosure of analysis of single amount of discontinued operations [line items]
Ownership interest		100%	100%
Pre-tax gain on sale of Senegal Assets		$ 109.1
Discontinued operations | Guinea Assets
Disclosure of analysis of single amount of discontinued operations [line items]
Ownership interest	100%
Purchase price adjustment	$ (8.1)
Net proceeds and pre-tax gain on sale of Guinea Assets	$ 34.1

ASSETS AND LIABILITIES HELD F_4

ASSETS AND LIABILITIES HELD FOR SALE - Disposal of senegal assets (Details) - USD ($) $ in Millions		12 Months Ended
	Apr. 25, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of analysis of single amount of discontinued operations [line items]
Cash and cash equivalents		$ 347.5	$ 367.1	$ 407.8
Property, plant and equipment		4,269.4	3,496.5
Other non-current assets		135.7	76.3
Accounts payable and accrued liabilities		(264.8)	(317.6)
Non-controlling interests		64	58.1
Total Assets of IAMGOLD		5,374.4	4,537.9
Pre-tax gain on sale of Senegal Assets		0	6.3
Discontinued operations
Disclosure of analysis of single amount of discontinued operations [line items]
Total Assets of IAMGOLD		$ 0	34.6
Pre-tax gain on sale of Senegal Assets			$ 6.3
Discontinued operations | Senegal Assets
Disclosure of analysis of single amount of discontinued operations [line items]
Proceeds	$ 197.6
Transaction costs	(3.7)
Proceeds received on closing	193.9
Pre-tax gain on sale of Senegal Assets	109.1
Discontinued operations | Senegal Assets | Assets and liabilities classified as held for sale
Disclosure of analysis of single amount of discontinued operations [line items]
Cash and cash equivalents	1.4
Property, plant and equipment	83.3
Other non-current assets	1.1
Accounts payable and accrued liabilities	(0.6)
Assets (liabilities)	85.2
Non-controlling interests	(0.4)
Total Assets of IAMGOLD	$ 84.8

ASSETS AND LIABILITIES HELD F_5

ASSETS AND LIABILITIES HELD FOR SALE - Disposal of Guinea assets (Details) - Discontinued operations - Guinea Assets $ in Millions	Dec. 23, 2024 USD ($)
Disclosure of analysis of single amount of discontinued operations [line items]
Proceeds	$ 27.4
Purchase price adjustment	8.1
Transaction costs	(1.4)
Net proceeds and pre-tax gain on sale of Guinea Assets	$ 34.1

ASSETS AND LIABILITIES HELD F_6

ASSETS AND LIABILITIES HELD FOR SALE - Bambouk assets and liabilities held for sale (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of analysis of single amount of discontinued operations [line items]
Cash and cash equivalents	$ 347.5	$ 367.1	$ 407.8
Receivables and other current assets	48.9	85.7
Assets	5,374.4	4,537.9
Accounts payable and accrued liabilities	264.8	317.6
Liabilities	$ 1,973.7	2,273.8
Assets and liabilities classified as held for sale | Bambouk
Disclosure of analysis of single amount of discontinued operations [line items]
Cash and cash equivalents		0.5
Receivables and other current assets		34.1
Assets		34.6
Accounts payable and accrued liabilities		5.6
Liabilities		$ 5.6

UNINCORPOATED ARRANGEMENT SMM_3

UNINCORPOATED ARRANGEMENT SMM FUNDING ARRANGEMENT - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Disclosure of associates [line items]
Funding obligations contributed by SMM		$ 0	$ 250
Repurchase of Transferred Interests	$ 377.7	(377.7)	0
Repurchase option fee included in repurchase price		$ 17.5	23.7
Côté Gold
Disclosure of associates [line items]
Proportion of voting rights held in joint venture		70%
Proportion of revenue and expenses	60.30%
Proportion of revenue and expenses included in interest income, derivatives and other investment gains (losses)	9.70%
Sumitomo Metal Mining Co Ltd
Disclosure of associates [line items]
Increased ownership interest in joint venture		9.70%
Unincorporated Joint Venture
Disclosure of associates [line items]
Proportion of voting rights held in joint venture		70%
Unincorporated Joint Venture | Sumitomo Metal Mining Co Ltd
Disclosure of associates [line items]
Funding obligation to Cote Gold by SMM			$ 250

UNINCORPOATED ARRANGEMENT SMM_4

UNINCORPOATED ARRANGEMENT SMM FUNDING ARRANGEMENT - Repurchase option liability (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Repurchase price:
Balance, beginning of the year		$ 350.8	$ 0
Funding obligations contributed by SMM		0	250
Incremental funding by SMM due to increased ownership		46.9	77.1
Repurchase option fee included in repurchase price		0	23.7
9.7% pre-Commercial Production gold received by SMM		(18.4)	0
Other		(1.6)	0
Repurchase of Transferred Interests	$ 377.7	(377.7)	0
Balance, end of the year		0	350.8
Fees and balances not included in repurchase price:
Balance, beginning of the year		(5.5)	0
Repurchase option fee accrued		32.7	0
Repurchase option fee paid		(32.7)	0
Deferred cost on waiver of operator fee		(2)	(6.5)
Amortization of deferred operator fee		7.5	1
Balance, end of the year		0	(5.5)
Côté Gold repurchase option		0	345.3
Current portion		0	0
Non-current portion		$ 0	$ 345.3

RESTRICTED CASH (Details)

RESTRICTED CASH (Details) € in Millions, $ in Millions, $ in Millions, XOF in Billions	Dec. 31, 2024 USD ($)	Dec. 31, 2024 XOF	Dec. 31, 2024 CAD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 XOF	Dec. 31, 2023 CAD ($)	Dec. 31, 2023 EUR (€)
Schedule Of Fair Value, Off-balance Sheet Risks1 [Line Items]
Non-current restricted cash	$ 68.4				$ 90.5
Payments made to minority interest shareholders of EURO	23.7			€ 21.9
Essakane mine
Schedule Of Fair Value, Off-balance Sheet Risks1 [Line Items]
Non-current restricted cash	54.6	XOF 34.6			52.6	XOF 31.2
Westwood division and Côté Gold
Schedule Of Fair Value, Off-balance Sheet Risks1 [Line Items]
Security for the purchase of shares held by the minority interest shareholders of EURO	11				11.4
Westwood division
Schedule Of Fair Value, Off-balance Sheet Risks1 [Line Items]
Security for the purchase of shares held by the minority interest shareholders of EURO	$ 2.8		$ 4.1		2.3		$ 3
Euro Ressources S.A.
Schedule Of Fair Value, Off-balance Sheet Risks1 [Line Items]
Security for the purchase of shares held by the minority interest shareholders of EURO					$ 24.2			€ 21.9

RECEIVABLES AND OTHER CURRENT_3

RECEIVABLES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]
Receivables from governments	$ 26.7	$ 61
Gold receivables	3.1	0
Other receivables	4.9	6.8
Total receivables	34.7	67.8
Short-term investments	1	0
Prepaid expenses	13.2	10.6
Hedge derivatives	0	7.3
Receivables and other current assets	$ 48.9	$ 85.7

RECEIVABLES AND OTHER CURRENT_4

RECEIVABLES AND OTHER CURRENT ASSETS - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]
Non-current receivables from governments	$ 66.3	$ 0
Current receivables from governments		$ 32.9

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]
Finished goods	$ 56.5	$ 33.8
Ore stockpiles	50.8	55.7
Mine supplies	164.6	176.8
Current inventories	271.9	266.3
Non-current ore stockpiles	153	106.5
Inventories	$ 424.9	$ 372.8

PROPERTY, PLANT AND EQUIPMENT -

PROPERTY, PLANT AND EQUIPMENT - Disclosure of property, plant and equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	$ 3,496.5
Net impairment (reversal) charge	(455.5)	$ 0
Balance, end of the year	4,269.4	3,496.5
Estimated depreciation reduction	275	221.7
Property, plant and equipment
Reconciliation of changes in property, plant and equipment [abstract]
Estimated depreciation reduction	10
Construction in progress
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	2,409.4
Balance, end of the year	107.6	2,409.4
Mining properties
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	599.9
Balance, end of the year	2,241.4	599.9
Plant and equipment
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	384.7
Balance, end of the year	1,811.8	384.7
Right-of-use assets
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	102.5
Balance, end of the year	108.6	102.5
Cost
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	6,795.9	5,654.3
Additions	679.2	1,141.3
Changes in asset retirement obligations	(21.4)	36.2
UJV lease adjustment		(29.4)
Disposals/derecognition	(50.3)	(17.6)
Transfers of Côté Gold Construction in progress	0
Transfers within property, plant and equipment	0	0
Transfers from exploration & evaluation assets		11.1
Balance, end of the year	7,403.4	6,795.9
Cost | Construction in progress
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	2,409.4	1,563.9
Additions	320	866.5
Changes in asset retirement obligations	0	0
UJV lease adjustment		(4)
Disposals/derecognition	0	(5.5)
Transfers of Côté Gold Construction in progress	(2,367.1)
Transfers within property, plant and equipment	(254.7)	(11.5)
Transfers from exploration & evaluation assets		0
Balance, end of the year	107.6	2,409.4
Cost | Mining properties
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	2,692.9	2,506.8
Additions	253.4	138.9
Changes in asset retirement obligations	(21.4)	36.2
UJV lease adjustment		0
Disposals/derecognition	0	0
Transfers of Côté Gold Construction in progress	1,098.8
Transfers within property, plant and equipment	96.1	(0.1)
Transfers from exploration & evaluation assets		11.1
Balance, end of the year	4,119.8	2,692.9
Cost | Plant and equipment
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	1,554.6	1,498.2
Additions	71	56.2
Changes in asset retirement obligations	0	0
UJV lease adjustment		0
Disposals/derecognition	(41.7)	(11.6)
Transfers of Côté Gold Construction in progress	1,268.3
Transfers within property, plant and equipment	158.9	11.8
Transfers from exploration & evaluation assets		0
Balance, end of the year	3,011.1	1,554.6
Cost | Right-of-use assets
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	139	85.4
Additions	34.8	79.7
Changes in asset retirement obligations	0	0
UJV lease adjustment		(25.4)
Disposals/derecognition	(8.6)	(0.5)
Transfers of Côté Gold Construction in progress	0
Transfers within property, plant and equipment	(0.3)	(0.2)
Transfers from exploration & evaluation assets		0
Balance, end of the year	164.9	139
Accumulated Depreciation and Impairment
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	(3,299.4)	(3,056.3)
Depreciation expense	303	254.9
Disposals/derecognition	48.7	11.8
Transfers within property, plant and equipment		0
Net impairment (reversal) charge	(419.7)
Balance, end of the year	(3,134)	(3,299.4)
Accumulated Depreciation and Impairment | Construction in progress
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	0	0
Depreciation expense	0	0
Disposals/derecognition	0	0
Transfers within property, plant and equipment		0
Net impairment (reversal) charge	0
Balance, end of the year	0	0
Accumulated Depreciation and Impairment | Mining properties
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	(2,093)	(1,963.1)
Depreciation expense	157.2	141.4
Disposals/derecognition	0	0
Transfers within property, plant and equipment		(11.5)
Net impairment (reversal) charge	(371.8)
Balance, end of the year	(1,878.4)	(2,093)
Accumulated Depreciation and Impairment | Plant and equipment
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	(1,169.9)	(1,078.9)
Depreciation expense	116.8	90.8
Disposals/derecognition	40.8	11.3
Transfers within property, plant and equipment		11.5
Net impairment (reversal) charge	(46.6)
Balance, end of the year	(1,199.3)	(1,169.9)
Accumulated Depreciation and Impairment | Right-of-use assets
Reconciliation of changes in property, plant and equipment [abstract]
Balance, beginning of the year	(36.5)	(14.3)
Depreciation expense	29	22.7
Disposals/derecognition	7.9	0.5
Transfers within property, plant and equipment		0
Net impairment (reversal) charge	(1.3)
Balance, end of the year	$ (56.3)	$ (36.5)

PROPERTY, PLANT AND EQUIPMENT_2

PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Sep. 23, 2020
Disclosure of detailed information about property, plant and equipment [line items]
Reversal of impairment loss	$ 462.3
Quoted borrowing costs capitalised		$ 98.5	$ 113.5
Borrowing costs capitalized, weighted average interest rate		8.90%	7.38%
Mining properties
Disclosure of detailed information about property, plant and equipment [line items]
Mining properties, stripping costs capitalized		$ 319.1	$ 199.2
Mining properties, stripping costs capitalized during period		181.4	87.9
Mining properties, stripping costs, depreciation expense		$ 61.5	$ 85.3
5.75% senior notes | Fixed interest rate
Disclosure of detailed information about property, plant and equipment [line items]
Interest rate		5.75%		5.75%
Côté Gold
Disclosure of detailed information about property, plant and equipment [line items]
Proportion of voting rights held in joint venture		70%

OTHER NON-CURRENT ASSETS (Detai

OTHER NON-CURRENT ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Receivables from governments	$ 66.3	$ 0
Advances for the purchase of capital equipment	16.4	18.5
Deferred consideration from the sale of Sadiola	18.3	15.2
Royalty interests	12.8	13.5
Long-term prepayment	2.9	3.3
Income taxes receivable	1	3.7
Other	6.7	5.9
Other non-current assets	135.7	76.3
Sadiola
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Deferred consideration - litigation settlement	1.2
Deferred consideration - milestone payments	17.1
Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Marketable securities and bond fund investments	10.3	14.2
Bond fund investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Marketable securities and bond fund investments	$ 1	$ 2

PROVISIONS - Provisions (Detail

PROVISIONS - Provisions (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of other provisions [line items]
Current portion of total provisions	$ 14.5	$ 5.4
Non-current portion of total provisions	285.1	360.1
Total provisions	299.6	365.5
Asset retirement obligations
Disclosure of other provisions [line items]
Total asset retirement obligations	279.6	347.4	$ 298.5
Current portion of total provisions	14.5	5.4
Non-current portion of total provisions	265.1	342
Other
Disclosure of other provisions [line items]
Total other provisions	$ 20	$ 18.1

PROVISIONS - Asset Retirement O

PROVISIONS - Asset Retirement Obligations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Reconciliation of changes in other provisions [abstract]
Less: current portion	$ (14.5)	$ (5.4)
Non-current portion	285.1	360.1
Asset retirement obligations
Reconciliation of changes in other provisions [abstract]
Balance, beginning of the year	347.4	298.5
Capitalized in property, plant and equipment	(21.4)	36.2
Changes in asset retirement obligations at closed mines	(13.4)	9.7
Impairment reversal	(35.8)	0
Accretion expense	5.7	5
Disbursements	(2.9)	(2)
Balance, end of the year	279.6	347.4
Less: current portion	(14.5)	(5.4)
Non-current portion	$ 265.1	$ 342

PROVISIONS - Narrative (Details

PROVISIONS - Narrative (Details) $ in Millions, $ in Millions, XOF in Billions	Dec. 26, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 XOF	Dec. 31, 2024 CAD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 XOF	Dec. 31, 2023 CAD ($)
Disclosure of other provisions [line items]
Restricted cash		$ 68.4			$ 90.5
Losses on litigation settlements	$ 15
Carrying value of forfeited inventory	$ 13.5
Letters of credit
Disclosure of other provisions [line items]
Uncollateralized surety bonds		159.2
Westwood division
Disclosure of other provisions [line items]
Bonds outstanding to guarantee asset retirement obligations		142.5		$ 205.3	126.7		$ 167.4
Côté Gold Project
Disclosure of other provisions [line items]
Bonds outstanding to guarantee asset retirement obligations		35		50.4	25.8		34
Westwood and Côté Gold | Letters of credit
Disclosure of other provisions [line items]
Bonds outstanding to guarantee asset retirement obligations		7.4		$ 10.6	22.6		$ 29.8
Westwood and Côté Gold | Cash Collateral
Disclosure of other provisions [line items]
Bonds outstanding to guarantee asset retirement obligations		10.9			10.9
Essakane mine
Disclosure of other provisions [line items]
Restricted cash		$ 54.6	XOF 34.6		$ 52.6	XOF 31.2

PROVISIONS - Future Disbursemen

PROVISIONS - Future Disbursements (Details) - Dec. 31, 2024 $ in Millions, $ in Millions	CAD ($)	USD ($)
Disclosure of other provisions [line items]
Undiscounted amounts required	$ 393.4	$ 100.5
Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	393.4
Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		100.5
2025 | Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	22.7
2025 | Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		1.4
2026 | Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	24
2026 | Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		2.6
2027 | Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	12.3
2027 | Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		2.8
2028 | Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	5.9
2028 | Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		4.2
2029 | Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	2.6
2029 | Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		6.9
2030 onwards | Westwood Mine and Other Canadian Sites
Disclosure of other provisions [line items]
Undiscounted amounts required	$ 325.9
2030 onwards | Essakane Mine
Disclosure of other provisions [line items]
Undiscounted amounts required		$ 82.6

PROVISIONS - Estimated Undiscou

PROVISIONS - Estimated Undiscounted Amounts Of Cash Flows Required To Settle Obligations (Details) - Dec. 31, 2024 $ in Millions, $ in Millions	CAD ($)	USD ($)
Disclosure of other provisions [line items]
Undiscounted amounts required	$ 393.4	$ 100.5
Côté Gold mine
Disclosure of other provisions [line items]
Undiscounted amounts required	107.3	0
Essakane mine
Disclosure of other provisions [line items]
Undiscounted amounts required	0	100.5
Westwood division, including Doyon
Disclosure of other provisions [line items]
Undiscounted amounts required	280.6	0
Other Canadian sites
Disclosure of other provisions [line items]
Undiscounted amounts required	$ 5.5	$ 0

LEASES - Lease liabilities (Det

LEASES - Lease liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of leases [Roll Forward]
Balance, beginning of year	$ 121.3	$ 73.8
Additions	34.1	79.7
Interest expense	8.4	7.5
Foreign exchange impact	(11)	1
Principal lease payments	(20.6)	(6)
Interest payments	(8)	(5.3)
UJV lease adjustment	0	(29.4)
Balance, end of year	124.2	121.3
Current portion	28.8	21.1
Non-current portion	95.4	100.2
Lease obligations	$ 124.2	$ 121.3

LEASES - Amounts recgonized in

LEASES - Amounts recgonized in statement of earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of leases [Abstract]
Short-term and low-value leases	$ 43.7	$ 25.6
Variable lease payments	$ 4.6	$ 12

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Taxes [Abstract]
Average effective tax rate	13.20%	23.90%
Applicable tax rate	26.50%	26.50%
Deferred income tax liability not recognized	$ 590.6	$ 527
Excessive interest and financing expenses	$ 60.7

INCOME TAXES - Components of In

INCOME TAXES - Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Current income tax	$ 116.4	$ 51.9
Changes in tax rates or imposition of new taxes	0.2	0
Deferred income taxes	13	(21.2)
Total income tax expense (recovery)	129.4	30.7
Canadian income taxes
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Current income tax	11.6	3.6
Deferred income taxes - origination and reversal of temporary differences	7.3	0
Foreign income taxes
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Current income tax	104.8	48.3
Deferred income taxes - origination and reversal of temporary differences	$ 5.5	$ (21.2)

INCOME TAXES - Reconciliation O

INCOME TAXES - Reconciliation Of Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Taxes [Abstract]
Earnings (loss) before income taxes	$ 977.2	$ 128.2
Income tax provision - 26.5%	259	34
Increase (reduction) in income taxes resulting from:
Earnings in foreign jurisdictions subject to a different tax rate than 26.5%	(36.5)	(31.9)
Permanent items that are not included in income (losses) for tax purposes:
Non-deductible expenses	(4.4)	(0.9)
Income (losses) not recognized for tax purposes	0.6	(3.5)
Tax provisions not based on legal entity income or losses for the year:
Provincial mining duty tax	15.9	3.8
Non-resident withholding tax	14.3	5.5
Under (over) tax provisions	3	0.3
Changes in tax rates	0.2	0
Other	0.5	0.3
Other adjustments:
Change in unrecognized deferred tax assets	(133.6)	21.4
Foreign exchange related to deferred income taxes	10.7	(2.2)
Taxes paid relating to sale of assets	0	4.1
Other	(0.3)	(0.2)
Total income tax expense (recovery)	$ 129.4	$ 30.7
Applicable tax rate	26.50%	26.50%

INCOME TAXES - Deferred Income

INCOME TAXES - Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	$ 0	$ 0
Net deferred tax liabilities	(14)	(0.7)
Net deferred tax liabilities	(14)	(0.7)	$ (22.6)
Before Offset Amount
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	397.2	577.7
Net deferred tax liabilities	(411.2)	(578.4)
Exploration and evaluation assets
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	283.3	442.4	307.7
Exploration and evaluation assets | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	283.3	442.4
Asset retirement obligations
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	52.6	0	2.5
Asset retirement obligations | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	52.6	0
Repurchase option
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	0	91.5	0
Repurchase option | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	0	91.5
Other assets | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Deferred income tax assets	61.3	43.8
Plant and equipment
Deferred tax assets and liabilities [abstract]
Net deferred tax liabilities	(383.1)	(572.8)	$ (355.3)
Plant and equipment | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Net deferred tax liabilities	(383.1)	(572.8)
Mining duties | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Net deferred tax liabilities	(7.4)	0
Other liabilities | Before Offset Amount
Deferred tax assets and liabilities [abstract]
Net deferred tax liabilities	$ (20.7)	$ (5.6)

INCOME TAXES - Changes to OCI (

INCOME TAXES - Changes to OCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Taxes [Abstract]
Unrealized change in fair value of marketable securities	$ 0.2	$ 0
Hedges	0.1	(0.7)
Total income taxes related to OCI	$ 0.3	$ (0.7)

INCOME TAXES - Deferred Tax Inc

INCOME TAXES - Deferred Tax Income (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 1,118.3	$ 1,826.4
Non-capital losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	778.7	1,099.1
Net Capital Losses [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	93.8	104.4
Exploration and evaluation assets
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	155.4	338.6
Mining duties
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	18.9	18.9
Asset retirement obligations
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	0	265.3
Other deductible temporary differences
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	10.8	0.1
Excessive interest and financing expenses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 60.7	$ 0

INCOME TAXES - Total Unrecogniz

INCOME TAXES - Total Unrecognized Losses (Details) $ in Millions	Dec. 31, 2024 USD ($)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	$ 778.7
2025
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	44.4
2026
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	21.2
2027
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	11.3
2028
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	9.1
2029+
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	664.4
No Expiry
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total unrecognized losses	$ 28.3

INCOME TAXES - Deferred Tax Lia

INCOME TAXES - Deferred Tax Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax assets opening balance	$ 0
Deferred tax liabilities opening balance	(0.7)
Net deferred income tax liabilities opening balance	(0.7)	$ (22.6)
Statements of earnings (loss)	(13)	21.2
OCI	(0.3)	0.7
Deferred tax assets ending balance	0	0
Deferred tax liabilities ending balance	(14)	(0.7)
Net deferred income tax liabilities ending balance	(14)	(0.7)
Exploration and evaluation assets
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax assets opening balance	442.4	307.7
Statements of earnings (loss)	(159.1)	134.7
OCI	0	0
Deferred tax assets ending balance	283.3	442.4
Asset retirement obligations
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax assets opening balance	0	2.5
Statements of earnings (loss)	52.6	(2.5)
OCI	0	0
Deferred tax assets ending balance	52.6	0
Repurchase option
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax assets opening balance	91.5	0
Statements of earnings (loss)	(91.5)	91.5
OCI	0	0
Deferred tax assets ending balance	0	91.5
Other assets
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax assets opening balance	43.8	34.3
Statements of earnings (loss)	17.6	8.8
OCI	(0.1)	0.7
Deferred tax assets ending balance	61.3	43.8
Plant and equipment
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax liabilities opening balance	(572.8)	(355.3)
Statements of earnings (loss)	189.7	(217.5)
OCI	0	0
Deferred tax liabilities ending balance	(383.1)	(572.8)
Mining duties
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax liabilities opening balance	0
Statements of earnings (loss)	(7.4)
OCI	0
Deferred tax liabilities ending balance	(7.4)	0
Other liabilities
Reconciliation of changes in deferred tax asset (liability) [abstract]
Deferred tax liabilities opening balance	(5.6)	(11.8)
Statements of earnings (loss)	(14.9)	6.2
OCI	(0.2)	0
Deferred tax liabilities ending balance	$ (20.7)	$ (5.6)

OTHER LIABILITIES (Details)

OTHER LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure of detailed information about financial instruments [line items]
Total other liabilities	$ 28.4	$ 29.6
Yatela liability	18.5	18.5
Current portion of other liabilities	27.7	29.6
Non-current portion of other liabilities	0.7	0
Hedge derivatives
Disclosure of detailed information about financial instruments [line items]
Total other liabilities	9.8	9.2
Non-hedge derivatives
Disclosure of detailed information about financial instruments [line items]
Total other liabilities	0	1.9
Other liabilities
Disclosure of detailed information about financial instruments [line items]
Total other liabilities	$ 0.1	$ 0

OTHER LIABILITIES - Narrative (

OTHER LIABILITIES - Narrative (Details) XOF in Billions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Feb. 05, 2025 USD ($)	Dec. 31, 2024 XOF	Feb. 14, 2019 USD ($)
Disclosure of detailed information about financial instruments [line items]
Yatela liability	$ 18,500,000	$ 18,500,000
Tax liabilities paid	$ 116,400,000	$ 51,900,000
Yatela
Disclosure of detailed information about financial instruments [line items]
Ownership percentage	40%			40%
Consideration transferred					$ 1
Cash payment by SADEX			$ 37,000,000
Yatela liability			$ 18,500,000
Tax liabilities	$ 4,200,000			XOF 2.5
Tax liabilities paid	$ 2,100,000
SADEX
Disclosure of detailed information about financial instruments [line items]
Ownership percentage					80%

LONG-TERM DEBT AND CREDIT FAC_3

LONG-TERM DEBT AND CREDIT FACILITY - Schedule of Long Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Sep. 23, 2020
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 1,028.9	$ 830.8
Current portion of long-term debt	1	5
Non-current portion of long-term debt	1,027.9	825.8
Credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	220	0
5.75% senior notes
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 448.4	448
5.75% senior notes | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Interest rate	5.75%		5.75%
Second lien term loan
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 358.4	375.6
Equipment loans
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 2.1	$ 7.2

LONG-TERM DEBT AND CREDIT FAC_4

LONG-TERM DEBT AND CREDIT FACILITY - Schedule of Contractual Maturities (Details) - USD ($) $ in Millions		12 Months Ended
	Sep. 23, 2020	Dec. 31, 2024	Dec. 31, 2023
Disclosure of maturity analysis for financial liabilities [line items]
Unamortized deferred transaction costs		$ 77.8	$ 68.3
5.75% senior notes
Disclosure of maturity analysis for financial liabilities [line items]
Carrying amount		450	450
Bank borrowings, undiscounted cash flows		553.5
Unamortized deferred transaction costs	$ 7.5
5.75% senior notes | Unamortized deferred transactions costs
Disclosure of maturity analysis for financial liabilities [line items]
Unamortized deferred transaction costs		3.6	4.5
5.75% senior notes | 1 yr
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		25.9
5.75% senior notes | 2-3 yrs
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		51.8
5.75% senior notes | 4-5 yrs
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		475.8
Term Loan
Disclosure of maturity analysis for financial liabilities [line items]
Carrying amount		400	400
Bank borrowings, undiscounted cash flows		565.2
Term Loan | Unamortized deferred transactions costs
Disclosure of maturity analysis for financial liabilities [line items]
Unamortized deferred transaction costs		3.7	8.2
Term Loan | 1 yr
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		49.2
Term Loan | 2-3 yrs
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		97.7
Term Loan | 4-5 yrs
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		418.3
Equipment loans
Disclosure of maturity analysis for financial liabilities [line items]
Carrying amount		2.1
Bank borrowings, undiscounted cash flows		2.1
Equipment loans | Unamortized deferred transactions costs
Disclosure of maturity analysis for financial liabilities [line items]
Unamortized deferred transaction costs			$ 0.1
Equipment loans | 1 yr
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		1
Equipment loans | 2-3 yrs
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		1.1
Equipment loans | 4-5 yrs
Disclosure of maturity analysis for financial liabilities [line items]
Bank borrowings, undiscounted cash flows		$ 0

LONG-TERM DEBT AND CREDIT FAC_5

LONG-TERM DEBT AND CREDIT FACILITY - Narrative (Details) $ in Millions, $ in Millions		12 Months Ended
	Sep. 23, 2020 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2024 CAD ($)	Dec. 20, 2024 USD ($)	Dec. 19, 2024 USD ($)	Dec. 31, 2023 CAD ($)	May 16, 2023 USD ($)	Dec. 31, 2022 USD ($)
Disclosure of detailed information about borrowings [line items]
Available amount under Credit facility		$ 418.5	$ 387						$ 26.6
Borrowings, covenant, minimum liquidity requirement		150
Unamortized deferred transaction costs		77.8	68.3
Total carrying amount of the financial assets		$ 5,374.4	$ 4,537.9
Weighted average interest rate of capitalized borrowing costs		8.90%	7.38%
Carrying amount, net of unamortized deferred transaction costs and embedded derivatives		$ 1,028.9	$ 830.8
Doyon and Côté Gold
Disclosure of detailed information about borrowings [line items]
Bonds outstanding to guarantee the construction of Cote Gold mine		177.5	152.5	$ 255.7			$ 201.4
Côté Gold mine
Disclosure of detailed information about borrowings [line items]
Bonds outstanding to guarantee the construction of Cote Gold mine		22.2	28.2	$ 32			37.3
Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of detailed information about borrowings [line items]
Total carrying amount of the financial assets		472	501.4
Embedded derivative | Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of detailed information about borrowings [line items]
Total carrying amount of the financial assets		0	0
Credit Facility
Disclosure of detailed information about borrowings [line items]
Available amount under Credit facility					$ 650	$ 425
5.75% senior notes
Disclosure of detailed information about borrowings [line items]
Face amount	$ 450
Unamortized deferred transaction costs	$ 7.5
Long-term debt		450	450
Carrying amount, net of unamortized deferred transaction costs and embedded derivatives		$ 448.4	448
5.75% senior notes | Embedded derivative | Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of detailed information about borrowings [line items]
Total carrying amount of the financial assets			0
5.75% senior notes | October 15, 2024
Disclosure of detailed information about borrowings [line items]
Redemption price percentage	102.875%
5.75% senior notes | October 15, 2025
Disclosure of detailed information about borrowings [line items]
Redemption price percentage	101.438%
5.75% senior notes | October 15, 2026 and thereafter
Disclosure of detailed information about borrowings [line items]
Redemption price percentage	100%
5.75% senior notes | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Interest rate	5.75%	5.75%		5.75%
5.75 Percent Senior Notes, Including Embedded Derivatives at Inception | Embedded derivative
Disclosure of detailed information about borrowings [line items]
Long-term debt	$ 454.2
Term Loan
Disclosure of detailed information about borrowings [line items]
Face amount								$ 400
Long-term debt		$ 400	400
Term of borrowings		5 years
Borrowing costs incurred		$ 11
Weighted average interest rate of capitalized borrowing costs		3%
Make-whole premium, discounted value if paid within two years		104%
Make-whole premium, discounted value if paid after two years		104%
Make-whole premium, discounted value if paid after three years		101%
Make-whole premium, discounted value if paid thereafter		100%
Term Loan | Embedded derivative | Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of detailed information about borrowings [line items]
Total carrying amount of the financial assets		$ 26.7	5.1
Term Loan | Embedded derivative
Disclosure of detailed information about borrowings [line items]
Financial assets, at fair value		$ 26.7	5.1					$ 1
Term Loan | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Interest rate		8.25%		8.25%
Equipment loans
Disclosure of detailed information about borrowings [line items]
Long-term debt		$ 2.1
Carrying amount, net of unamortized deferred transaction costs and embedded derivatives		$ 2.1	7.2
Equipment loans | Top of range
Disclosure of detailed information about borrowings [line items]
Interest rate		5.30%		5.30%
Uncollateralized Surety Bonds
Disclosure of detailed information about borrowings [line items]
Long-term debt		$ 159.2
Uncollateralized Surety Bonds | Westwood and Côté Gold
Disclosure of detailed information about borrowings [line items]
Bonds outstanding to guarantee the construction of Cote Gold mine		7.4	22.6	$ 10.6			$ 29.8
Cash Collateral | Westwood and Côté Gold
Disclosure of detailed information about borrowings [line items]
Bonds outstanding to guarantee the construction of Cote Gold mine		$ 10.9	$ 10.9

LONG-TERM DEBT AND CREDIT FAC_6

LONG-TERM DEBT AND CREDIT FACILITY - Roll forward of Available Amount Under Credit Facility (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 20, 2024	Dec. 31, 2024	Dec. 31, 2023
Financial Instruments [Abstract]
Available amount under Credit Facility, beginning of year		$ 387	$ 26.6
Increase (decrease) in available amount under Credit Facility		225	(75)
Draws	$ (220)	(280)	0
Repayments		60	455
Increase (decrease) in letters of credit		26.5	(19.6)
Available amount under Credit Facility, end of year		$ 418.5	$ 387

DEFERRED REVENUE - Narrative (D

DEFERRED REVENUE - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) oz	Dec. 31, 2022 USD ($)	Dec. 31, 2021 oz
Disclosure of deferred income [Line Items]
Proceeds from gold prepayment	$ 119,300,000
Average forward contract price per ounce	1,753
Sales Arrangement, Average Cap Price, Per Ounce	$ 2,925
2022 Prepay Arrangements
Disclosure of deferred income [Line Items]
Purchase arrangement, weighted average cost, percentage per annum	0.0445
Sales arrangement, total amount of product to be provided | oz			150,000
Average funding price, after financing charges	$ 1,753
Purchase arrangement, average forward contract price, gold basis | oz	50,000
Floor price (in dollars per ounce)	$ 1,700
Cap price (in dollars per ounce)	$ 2,100
Purchase arrangement, collar range, gold basis | oz	100,000
Proceeds from gold prepayment		$ 236,000,000
Sales arrangement, product physically provided | oz	137,500
Cash received for physically delivered products	$ 38,900,000
Sales agreement, floor price per ounce	$ 1,700
2024 Q1 Prepay Arrangements
Disclosure of deferred income [Line Items]
Purchase arrangement, weighted average cost, percentage per annum	0.113
Average funding price, after financing charges	$ 1,916
Sales arrangement, deferred delivery, amount of ounces | oz	6,250
Sales arrangement, total amount of product to be provided | oz	31,250
Proceeds from gold prepayment (to be received in Q1 2024)	$ 59,900,000
2024 Q2 Prepay Arrangements
Disclosure of deferred income [Line Items]
Purchase arrangement, weighted average cost, percentage per annum	0.10
Average funding price, after financing charges	$ 1,900
Floor price (in dollars per ounce)	2,100
Cap price (in dollars per ounce)	2,925
Sales agreement, floor price per ounce	$ 2,100
Sales arrangement, deferred delivery, amount of ounces | oz	6,250
Sales arrangement, total amount of product to be provided | oz	31,250
Proceeds from gold prepayment (to be received in Q1 2024)	$ 59,400,000

DEFERRED REVENUE - Changes in D

DEFERRED REVENUE - Changes in Deferred Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue From Contract With Customer [Roll Forward]
Contract liabilities at beginning of period	$ 251.6	$ 240.8
Proceeds from gold prepayment	119.3
Deferred revenue recognized	235.7
Finance costs	15.9	10.8
Contract liabilities at end of period	151.1	251.6
Current portion of deferred revenue	151.1	240.7
Deferred revenue	0	10.9
Current portion of deferred revenue	151.1
2022 Prepay Arrangements
Revenue From Contract With Customer [Roll Forward]
Contract liabilities at beginning of period	251.6	240.8
Proceeds from gold prepayment	0
Deferred revenue recognized	235.7
Finance costs	6.7	10.8
Contract liabilities at end of period	22.6	251.6
Current portion of deferred revenue	22.6
Deferred revenue	0
Current portion of deferred revenue	22.6
2024 Q1 Prepay Arrangements
Revenue From Contract With Customer [Roll Forward]
Contract liabilities at beginning of period	0	0
Proceeds from gold prepayment	59.9
Deferred revenue recognized	0
Finance costs	5.6	0
Contract liabilities at end of period	65.5	0
Current portion of deferred revenue	65.5
Deferred revenue	0
Current portion of deferred revenue	65.5
2024 Q2 Prepay Arrangements
Revenue From Contract With Customer [Roll Forward]
Contract liabilities at beginning of period	0	0
Proceeds from gold prepayment	59.4
Deferred revenue recognized	0
Finance costs	3.6	0
Contract liabilities at end of period	63	$ 0
Current portion of deferred revenue	63
Deferred revenue	0
Current portion of deferred revenue	$ 63

FINANCIAL INSTRUMENTS - Maturit

FINANCIAL INSTRUMENTS - Maturity Date and Principal Amount of the Company's Obligations (Details) $ in Millions	Dec. 31, 2024 USD ($)
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	$ 1,612.2
2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	455
2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	34.1
2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	29.4
2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	1,093.7
Accounts payable and accrued liabilities
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	264.8
Accounts payable and accrued liabilities | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	264.8
Accounts payable and accrued liabilities | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Accounts payable and accrued liabilities | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Accounts payable and accrued liabilities | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Lease liabilities
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	124.2
Lease liabilities | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	38.1
Lease liabilities | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	33
Lease liabilities | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	29.4
Lease liabilities | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	23.7
Equipment loans
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	2.1
Equipment loans | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	1
Equipment loans | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	1.1
Equipment loans | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Equipment loans | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Credit facility
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	220
Credit facility | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Credit facility | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Credit facility | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Credit facility | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	220
Notes
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	450
Notes | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Notes | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Notes | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Notes | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	450
Gold sale prepayment arrangement
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	151.1
Gold sale prepayment arrangement | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	151.1
Gold sale prepayment arrangement | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Gold sale prepayment arrangement | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Gold sale prepayment arrangement | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Term Loan
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	400
Term Loan | 2025
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Term Loan | 2026
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Term Loan | 2027
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	0
Term Loan | 2028 onwards
Disclosure of detailed information about financial instruments [line items]
Current financial assets at amortised cost	$ 400

FINANCIAL INSTRUMENTS - Narrati

FINANCIAL INSTRUMENTS - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) $ / oz	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents | $	$ 347,500,000	$ 367,100,000	$ 407,800,000
Percentage of reasonably possible increase	10%
Percentage of reasonably possible decrease	10%
2022 Prepay Arrangements
Disclosure of detailed information about financial instruments [line items]
Gold floor price, per ounce (in usd per ounce) | $ / oz	1,700
Gold cap price, per ounce (in usd per ounce) | $ / oz	2,100
Gold option increase price, per ounce (in usd per ounce) | $ / oz	2,100
2024 Q2 Prepay Arrangements
Disclosure of detailed information about financial instruments [line items]
Gold floor price, per ounce (in usd per ounce) | $ / oz	2,100
Gold cap price, per ounce (in usd per ounce) | $ / oz	2,925
Gold option increase price, per ounce (in usd per ounce) | $ / oz	2,925
Brent Crude Oil Option Contracts (barrels) | Cash flow hedges | Commodity price risk
Disclosure of detailed information about financial instruments [line items]
Risk exposure associated with instruments sharing characteristic | $	$ 0
Gold price contracts | Cash flow hedges | Commodity price risk
Disclosure of detailed information about financial instruments [line items]
Risk exposure associated with instruments sharing characteristic | $	0
Gold price Contracts
Disclosure of detailed information about financial instruments [line items]
Realized hedge losses recognized in profit or loss | $	2,200,000	$ 1,100,000
Côté Gold UJV
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents | $	46,000,000
Essakane mine
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents | $	$ 130,200,000

FINANCIAL INSTRUMENTS - Currenc

FINANCIAL INSTRUMENTS - Currency Exchange Rate Derivative Contracts (Details) - Canadian dollar contracts	Dec. 31, 2024 CAD ($) $ / $
2025 | Bottom of range
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Contract rate range (in USD per CAD)	1.35
2025 | Top of range
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Contract rate range (in USD per CAD)	1.44
2026 | Bottom of range
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Contract rate range (in USD per CAD)	1.36
2026 | Top of range
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Contract rate range (in USD per CAD)	1.44
Currency risk
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Face amount | $	$ 478,000,000
Currency risk | 2025
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Face amount | $	406,000,000
Currency risk | 2026
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Face amount | $	$ 72,000,000

FINANCIAL INSTRUMENTS - Curre_2

FINANCIAL INSTRUMENTS - Currency Exchange Risk (Details) - Currency risk - Canadian dollar contracts $ in Millions	12 Months Ended
	Dec. 31, 2024 CAD ($)
Disclosure of detailed information about hedging instruments [line items]
Risk exposure associated with instruments sharing characteristic	$ (9.8)
Increase of 10%, sensitivity analysis	(37.8)
Decrease of 10%, sensitivity analysis	$ 20.5

FINANCIAL INSTRUMENTS - Cash Fl

FINANCIAL INSTRUMENTS - Cash Flow Hedge Fair Value Reserve (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Gain (Loss) Recognized in Cash Flow Hedge [Abstract]
Total cash flow hedge assets	$ (9.8)	$ (1.9)	$ 23.5
Unrealized gain (loss) recognized in cash flow hedge reserve	(39.7)	(1.4)
Realized (gain) loss reclassified or adjusted from cash flow hedge reserve	24.8	(16.4)
Realized time value related to premiums paid	2.2
Unrealized (gain) loss reclassified or adjusted from cash flow hedge reserve due to hedge de-designation		(0.2)
Time value excluded from hedge relationship	4.8	(7.4)
Current portion of hedge asset	0
Non-current portion of hedge asset	0
Current portion of hedge liability	(9.1)
Non-current portion of hedge liability	(0.7)
Hedging Instrument, assets (liabilities)	(9.8)
Canadian dollar contracts
Gain (Loss) Recognized in Cash Flow Hedge [Abstract]
Total cash flow hedge assets	(9.8)	1.6	3.2
Unrealized gain (loss) recognized in cash flow hedge reserve	(13.1)	2.9
Realized (gain) loss reclassified or adjusted from cash flow hedge reserve	1.7	(4.4)
Realized time value related to premiums paid	0
Unrealized (gain) loss reclassified or adjusted from cash flow hedge reserve due to hedge de-designation		0
Time value excluded from hedge relationship	0	(0.1)
Current portion of hedge asset	0
Non-current portion of hedge asset	0
Current portion of hedge liability	(9.1)
Non-current portion of hedge liability	(0.7)
Hedging Instrument, assets (liabilities)	(9.8)
Oil contracts
Gain (Loss) Recognized in Cash Flow Hedge [Abstract]
Total cash flow hedge assets	0	5.7	20.4
Unrealized gain (loss) recognized in cash flow hedge reserve	1.6	(1.4)
Realized (gain) loss reclassified or adjusted from cash flow hedge reserve	(7.2)	(12.2)
Realized time value related to premiums paid	0
Unrealized (gain) loss reclassified or adjusted from cash flow hedge reserve due to hedge de-designation		(0.2)
Time value excluded from hedge relationship	(0.1)	(0.9)
Current portion of hedge asset	0
Non-current portion of hedge asset	0
Current portion of hedge liability	0
Non-current portion of hedge liability	0
Hedging Instrument, assets (liabilities)	0
Gold price contracts
Gain (Loss) Recognized in Cash Flow Hedge [Abstract]
Total cash flow hedge assets	0	(9.2)	$ (0.1)
Unrealized gain (loss) recognized in cash flow hedge reserve	(28.2)	(2.9)
Realized (gain) loss reclassified or adjusted from cash flow hedge reserve	30.3	0.2
Realized time value related to premiums paid	2.2
Unrealized (gain) loss reclassified or adjusted from cash flow hedge reserve due to hedge de-designation		0
Time value excluded from hedge relationship	4.9	$ (6.4)
Current portion of hedge asset	0
Non-current portion of hedge asset	0
Current portion of hedge liability	0
Non-current portion of hedge liability	0
Hedging Instrument, assets (liabilities)	$ 0

FINANCIAL INSTRUMENTS - Cash _2

FINANCIAL INSTRUMENTS - Cash Flow Reclassification of Gain (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of detailed information about hedging instruments [line items]
Property, plant and equipment	$ 1	$ 4.3
Reclassification adjustments on cash flow hedges, net of tax	26	(10.5)
Realized hedge (gain) loss reclassified from cash flow hedge reserve	27	(15.4)
Discontinued operations
Disclosure of detailed information about hedging instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	0	(0.6)
Revenues
Disclosure of detailed information about hedging instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	32.5	1.1
Cost of sales
Disclosure of detailed information about hedging instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	(6.5)	(11.4)
General and administrative expenses
Disclosure of detailed information about hedging instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	$ 0	$ (0.2)

FAIR VALUE MEASUREMENTS - Finan

FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions		12 Months Ended
	Sep. 23, 2020	Dec. 31, 2024	Dec. 31, 2023
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		$ 5,374.4	$ 4,537.9
Liabilities		(1,973.7)	(2,273.8)
Unamortized deferred transaction costs		77.8	68.3
Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Unamortized deferred transaction costs	$ 7.5
Notes | Unamortized deferred transactions costs
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Unamortized deferred transaction costs		3.6	4.5
Term Loan | Unamortized deferred transactions costs
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Unamortized deferred transaction costs		3.7	8.2
Equipment loans | Unamortized deferred transactions costs
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Unamortized deferred transaction costs			0.1
TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(1.4)
Carrying Amount
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		472	501.4
Liabilities		(1,084.7)	(871.8)
Carrying Amount | Option contracts | Gold bullion contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(9.2)
Carrying Amount | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(9.8)
Carrying Amount | TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(1.4)
Carrying Amount | Extendible forward arrangement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(0.5)
Carrying Amount | Long-term debt | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(452)	(452.5)
Carrying Amount | Long-term debt | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(400.8)	(400.9)
Carrying Amount | Long-term debt | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(2.1)	(7.3)
Carrying Amount | Long-term debt | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(220)
Carrying Amount | Cash and cash equivalents
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		347.5	367.1
Carrying Amount | Short-term investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		1
Carrying Amount | Restricted cash
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		68.4	90.5
Carrying Amount | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		10.3	14.2
Carrying Amount | Bond fund investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		1	2
Carrying Amount | Deferred consideration from the sale of Sadiola
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		17.1	15.2
Carrying Amount | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			1.6
Carrying Amount | Option contracts | Crude Oil Option Contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			5.7
Carrying Amount | Embedded derivative
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Carrying Amount | Embedded derivative | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			0
Carrying Amount | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		26.7	5.1
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		472	501.4
Liabilities		(1,117.1)	(817.7)
Recurring fair value measurement | Option contracts | Gold bullion contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(9.2)
Recurring fair value measurement | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(9.8)
Recurring fair value measurement | TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(1.4)
Recurring fair value measurement | Extendible forward arrangement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(0.5)
Recurring fair value measurement | Long-term debt | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(435.8)	(388.3)
Recurring fair value measurement | Long-term debt | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(449.2)	(411)
Recurring fair value measurement | Long-term debt | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(2.3)	(7.3)
Recurring fair value measurement | Long-term debt | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(220)	0
Recurring fair value measurement | Cash and cash equivalents
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		347.5	367.1
Recurring fair value measurement | Short-term investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		1
Recurring fair value measurement | Restricted cash
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		68.4	90.5
Recurring fair value measurement | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		10.3	14.2
Recurring fair value measurement | Bond fund investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		1	2
Recurring fair value measurement | Deferred consideration from the sale of Sadiola
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		17.1	15.2
Recurring fair value measurement | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			1.6
Recurring fair value measurement | Option contracts | Crude Oil Option Contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			5.7
Recurring fair value measurement | Embedded derivative | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0
Recurring fair value measurement | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		26.7	5.1
Recurring fair value measurement | Level 1
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		428.2	473.8
Liabilities		(435.8)	(388.3)
Recurring fair value measurement | Level 1 | Option contracts | Gold bullion contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			0
Recurring fair value measurement | Level 1 | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0
Recurring fair value measurement | Level 1 | TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			0
Recurring fair value measurement | Level 1 | Extendible forward arrangement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			0
Recurring fair value measurement | Level 1 | Long-term debt | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(435.8)	(388.3)
Recurring fair value measurement | Level 1 | Long-term debt | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0	0
Recurring fair value measurement | Level 1 | Long-term debt | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0	0
Recurring fair value measurement | Level 1 | Long-term debt | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0
Recurring fair value measurement | Level 1 | Cash and cash equivalents
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		347.5	367.1
Recurring fair value measurement | Level 1 | Short-term investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		1
Recurring fair value measurement | Level 1 | Restricted cash
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		68.4	90.5
Recurring fair value measurement | Level 1 | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		10.3	14.2
Recurring fair value measurement | Level 1 | Bond fund investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		1	2
Recurring fair value measurement | Level 1 | Deferred consideration from the sale of Sadiola
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 1 | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			0
Recurring fair value measurement | Level 1 | Option contracts | Crude Oil Option Contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			0
Recurring fair value measurement | Level 1 | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 2
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		26.7	12.4
Liabilities		(681.3)	(429.4)
Recurring fair value measurement | Level 2 | Option contracts | Gold bullion contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(9.2)
Recurring fair value measurement | Level 2 | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(9.8)
Recurring fair value measurement | Level 2 | TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(1.4)
Recurring fair value measurement | Level 2 | Extendible forward arrangement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			(0.5)
Recurring fair value measurement | Level 2 | Long-term debt | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0	0
Recurring fair value measurement | Level 2 | Long-term debt | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(449.2)	(411)
Recurring fair value measurement | Level 2 | Long-term debt | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(2.3)	(7.3)
Recurring fair value measurement | Level 2 | Long-term debt | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(220)
Recurring fair value measurement | Level 2 | Cash and cash equivalents
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 2 | Short-term investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0
Recurring fair value measurement | Level 2 | Restricted cash
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 2 | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 2 | Bond fund investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 2 | Deferred consideration from the sale of Sadiola
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 2 | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			1.6
Recurring fair value measurement | Level 2 | Option contracts | Crude Oil Option Contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			5.7
Recurring fair value measurement | Level 2 | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		26.7	5.1
Recurring fair value measurement | Level 3
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		17.1	15.2
Liabilities		0	0
Recurring fair value measurement | Level 3 | Option contracts | Gold bullion contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			0
Recurring fair value measurement | Level 3 | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0
Recurring fair value measurement | Level 3 | TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			0
Recurring fair value measurement | Level 3 | Extendible forward arrangement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities			0
Recurring fair value measurement | Level 3 | Long-term debt | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0	0
Recurring fair value measurement | Level 3 | Long-term debt | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0	0
Recurring fair value measurement | Level 3 | Long-term debt | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0	0
Recurring fair value measurement | Level 3 | Long-term debt | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		0
Recurring fair value measurement | Level 3 | Cash and cash equivalents
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 3 | Short-term investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0
Recurring fair value measurement | Level 3 | Restricted cash
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 3 | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 3 | Bond fund investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0	0
Recurring fair value measurement | Level 3 | Deferred consideration from the sale of Sadiola
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		17.1	15.2
Recurring fair value measurement | Level 3 | Currency contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			0
Recurring fair value measurement | Level 3 | Option contracts | Crude Oil Option Contracts
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets			0
Recurring fair value measurement | Level 3 | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		$ 0	$ 0

FAIR VALUE MEASUREMENTS - Narra

FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	$ (1,973.7)	$ (2,273.8)
Assets	5,374.4	4,537.9
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(1,117.1)	(817.7)
Assets	472	501.4
Recurring fair value measurement | Embedded derivative | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets	0
Recurring fair value measurement | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets	26.7	5.1
Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(1,084.7)	(871.8)
Assets	472	501.4
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets	0	0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets		0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Assets	26.7	5.1
TARF
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(1.4)
TARF | Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(1.4)
TARF | Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(1.4)
Extendible forward arrangement | Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(0.5)
Extendible forward arrangement | Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities		(0.5)
Long-term borrowings | Recurring fair value measurement | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(435.8)	(388.3)
Long-term borrowings | Recurring fair value measurement | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(449.2)	(411)
Long-term borrowings | Recurring fair value measurement | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(220)	0
Long-term borrowings | Recurring fair value measurement | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(2.3)	(7.3)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Notes
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(452)	(452.5)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Term Loan
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(400.8)	(400.9)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Credit facility
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	(220)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Equipment loans
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Liabilities	$ (2.1)	$ (7.3)

CAPITAL MANAGEMENT (Details)

CAPITAL MANAGEMENT (Details) - USD ($) $ in Millions		12 Months Ended
	Sep. 23, 2020	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of detailed information about borrowings [line items]
Cash and cash equivalents		$ 347.5	$ 367.1	$ 407.8
Credit facility available for use		418.5	387
Common shares		3,070.6	2,732.1
Capital Management Liabilities And Equity		4,339.1	3,969.1
Unamortized deferred transaction costs		77.8	68.3
Notes
Disclosure of detailed information about borrowings [line items]
Long-term debt		450	450
Unamortized deferred transaction costs	$ 7.5
Notes | Unamortized deferred transactions costs
Disclosure of detailed information about borrowings [line items]
Unamortized deferred transaction costs		3.6	4.5
Term Loan
Disclosure of detailed information about borrowings [line items]
Long-term debt		400	400
Term Loan | Unamortized deferred transactions costs
Disclosure of detailed information about borrowings [line items]
Unamortized deferred transaction costs		3.7	8.2
Equipment loans
Disclosure of detailed information about borrowings [line items]
Long-term debt		$ 2.1
Equipment loans | Unamortized deferred transactions costs
Disclosure of detailed information about borrowings [line items]
Unamortized deferred transaction costs			$ 0.1

SHARE CAPITAL (Details)

SHARE CAPITAL (Details) - Common shares - shares shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Reconciliation of number of shares outstanding [abstract]
Outstanding, beginning of the year	481.3	479
Equity issuance	85.2	0
Issuance of flow-through common shares	1.9	0
Issuance of shares for share-based compensation	3	2.3
Outstanding, end of the year	571.4	481.3

SHARE CAPITAL - Narrative (Deta

SHARE CAPITAL - Narrative (Details) $ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions, $ in Millions			1 Months Ended		12 Months Ended
	May 24, 2024 USD ($)	May 21, 2024 USD ($) $ / shares shares	Feb. 29, 2024 USD ($) shares	Feb. 29, 2024 CAD ($) $ / shares shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Share Capital, Reserves And Other Equity Interest [Abstract]
Number of shares issued (in shares) | shares		72
Share price (in dollars per share) | $ / shares		$ 4.17
Gross proceeds from issuing shares		$ 300.2
Net proceeds from issuance of shares	$ 287.5				$ 287.5	$ 0
Equity issuance transaction costs	$ 12.7
Number of flow through common shares issued | shares			1.9	1.9
Flow through common shares price (in dollars per share) | $ / shares				$ 4.20
Net proceeds of flow through common shares			$ 5.9	$ 8
Premium			1.2
Total flow through common shares value			$ 4.7
Remaining unspent amount					0.6
Amortization gains					$ 1.1

NON-CONTROLLING INTERESTS (Deta

NON-CONTROLLING INTERESTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of consolidated [line items]
Accumulated non-controlling interest	$ 64	$ 58.1
Net earnings (loss) attributable to non-controlling interests	28.2	9.5
Current assets	668.3	753.7
Non-current assets	4,706.1	3,784.2
Current liabilities	(550.6)	(630.8)
Non-current liabilities	(1,423.1)	(1,643)
Revenues	1,633	987.1
Net earnings (loss) and OCI	842.9	82.4
Net cash from (used in) operating activities	486	159.4
Net cash from (used in) investing activities	(582.4)	(402.3)
Net cash from (used in) financing activities	83.3	201.7
Net increase (decrease) in cash and cash equivalents	$ (20.1)	$ (39.9)
Essakane mine
Disclosure of consolidated [line items]
Percentage of voting rights held by non-controlling interests	10%	10%
Accumulated non-controlling interest	$ 64	$ 54.2
Net earnings (loss) attributable to non-controlling interests	27.7	6.2
Dividends paid to non-controlling interests	18	12
Current assets	324	330.3
Non-current assets	882.2	764.3
Current liabilities	(175)	(157.5)
Non-current liabilities	(234.1)	(237.4)
Net assets	797.1	699.7
Revenues	1,084.3	810.6
Net earnings (loss) and OCI	277.5	61.9
Net cash from (used in) operating activities	444.6	223.8
Net cash from (used in) investing activities	(196.9)	(137)
Net cash from (used in) financing activities	(185.2)	(145.8)
Net increase (decrease) in cash and cash equivalents	62.5	$ (59)
Rosebel Gold Mines N.V.
Disclosure of consolidated [line items]
Percentage of voting rights held by non-controlling interests		5%
Accumulated non-controlling interest		$ 0
Net earnings (loss) attributable to non-controlling interests		0.7
Dividends paid to non-controlling interests		0
Current assets		0
Non-current assets		0
Current liabilities		0
Non-current liabilities		0
Net assets		0
Revenues		47.2
Net earnings (loss) and OCI		14.4
Net cash from (used in) operating activities		15.4
Net cash from (used in) investing activities		(8.2)
Net cash from (used in) financing activities		(2)
Net increase (decrease) in cash and cash equivalents		$ 5.2
Boto3
Disclosure of consolidated [line items]
Percentage of voting rights held by non-controlling interests		10%
Accumulated non-controlling interest		$ 0
Net earnings (loss) attributable to non-controlling interests		(0.2)
Dividends paid to non-controlling interests		0
Current assets		0
Non-current assets		0
Current liabilities		0
Non-current liabilities		0
Net assets		0
Revenues		0
Net earnings (loss) and OCI		(1.9)
Net cash from (used in) operating activities		(3.5)
Net cash from (used in) investing activities		(3.2)
Net cash from (used in) financing activities		5.2
Net increase (decrease) in cash and cash equivalents		(1.5)
Subsidiaries with non-material non-controlling Interests
Disclosure of consolidated [line items]
Dividends paid to non-controlling interests	$ 0	$ 1.7

SHARE-BASED COMPENSATION - Shar

SHARE-BASED COMPENSATION - Share-based Compensation Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [line items]
Value of share-based payment arrangements	$ 6.2	$ 6.5
Options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Value of share-based payment arrangements	0.8	0.9
Share units
Disclosure of terms and conditions of share-based payment arrangement [line items]
Value of share-based payment arrangements	$ 5.4	$ 5.6

SHARE-BASED COMPENSATION - Narr

SHARE-BASED COMPENSATION - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 shares	May 21, 2024 shares	Dec. 31, 2023 shares	Dec. 31, 2022 shares
Disclosure of range of exercise prices of outstanding share options [line items]
Number of share options outstanding in share-based payment arrangement (in shares)	3,100,000		5,200,000	4,700,000
Number of shares issued (in shares)		72,000,000
Number of other equity instruments outstanding in share-based payment arrangement (in shares)	6,700,000		6,100,000	6,300,000
Treasury shares
Disclosure of range of exercise prices of outstanding share options [line items]
Number of shares issued (in shares)	0
Options
Disclosure of range of exercise prices of outstanding share options [line items]
Expiration period	7 years
Maximum allotment of common shares reserved in share-based payment arrangement (in shares)	25,905,624
Common stock, capital shares issued (in shares)	18,211,059
Common shares in reserve in share-based payment arrangement (in shares)	7,694,565
Number of share options outstanding in share-based payment arrangement (in shares)	3,125,071
Common shares unallocated in reserve in share-based payment arrangement (in shares)	4,569,494
Options | Bottom of range
Disclosure of range of exercise prices of outstanding share options [line items]
Vesting period	3 years
Options | Top of range
Disclosure of range of exercise prices of outstanding share options [line items]
Vesting period	5 years
Share units
Disclosure of range of exercise prices of outstanding share options [line items]
Maximum allotment of common shares reserved in share-based payment arrangement (in shares)	32,256,762
Common shares in reserve in share-based payment arrangement (in shares)	19,822,434
Common shares unallocated in reserve in share-based payment arrangement (in shares)	13,064,295
Number of shares issued (in shares)	12,434,328
Number of other equity instruments outstanding in share-based payment arrangement (in shares)	6,758,139
Restricted Share Units | Bottom of range
Disclosure of range of exercise prices of outstanding share options [line items]
Vesting period	12 months
Restricted Share Units | Top of range
Disclosure of range of exercise prices of outstanding share options [line items]
Vesting period	36 months
Performance Share Units
Disclosure of range of exercise prices of outstanding share options [line items]
Vesting period	36 months
Employee Share Purchase Plan
Disclosure of range of exercise prices of outstanding share options [line items]
Company's matching percentage	75%
Employee contribution percentage	5%
Maximum percentage company will match	3.75%
Employee Share Purchase Plan | Bottom of range
Disclosure of range of exercise prices of outstanding share options [line items]
Employee contribution, percentage of base salary	1%
Employee Share Purchase Plan | Top of range
Disclosure of range of exercise prices of outstanding share options [line items]
Employee contribution, percentage of base salary	10%

SHARE-BASED COMPENSATION - Sh_2

SHARE-BASED COMPENSATION - Share Option Award Plan (Details) shares in Millions	12 Months Ended
	Dec. 31, 2024 shares $ / shares	Dec. 31, 2023 shares $ / shares
Share-Based Payment Arrangements [Abstract]
Outstanding, beginning of the year (in shares) | shares	5.2	4.7
Granted (in shares) | shares	0.8	1
Exercised (in shares) | shares	(1.6)	(0.2)
Forfeited (in shares) | shares	(0.3)	(0.1)
Expired (in shares) | shares	(1)	(0.2)
Outstanding, end of the year (in shares) | shares	3.1	5.2
Exercisable, end of the year (in shares) | shares	1.4	3
Outstanding, beginning of the year (C$ per share)	$ 4.77	$ 4.86
Granted (C$ per share)	3.67	3.70
Exercised (C$ per share)	5.36	3.26
Forfeited (C$ per share)	3.93	3.94
Expired (C$ per share)	5.24	3.26
Outstanding, end of the year (C$ per share)	4.13	4.77
Exercisable, end of the year (C$ per share)	$ 4.57	$ 5.38
Closing foreign exchange rate (C$ per share)	1.4404

SHARE-BASED COMPENSATION - Info

SHARE-BASED COMPENSATION - Information Related to Share Options Outstanding (Details) shares in Millions	12 Months Ended
	Dec. 31, 2024 shares $ / shares	Dec. 31, 2023 shares $ / shares	Dec. 31, 2022 shares $ / shares
Disclosure of range of exercise prices of outstanding share options [line items]
Number of outstanding (in shares) | shares	3.1	5.2	4.7
Weighted average remaining contractual life	4 years 1 month 6 days
Weighted average exercise price (C$/share)	$ 4.13	$ 4.77	$ 4.86
1.01 - 5.00
Disclosure of range of exercise prices of outstanding share options [line items]
Number of outstanding (in shares) | shares	2.9
Weighted average remaining contractual life	4 years 4 months 24 days
Weighted average exercise price (C$/share)	$ 3.94
5.01
Disclosure of range of exercise prices of outstanding share options [line items]
Number of outstanding (in shares) | shares	0.2
Weighted average remaining contractual life	2 months 12 days
Weighted average exercise price (C$/share)	$ 6.84
Bottom of range | 1.01 - 5.00
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding share options (C$ per share)	1.01
Bottom of range | 5.01
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding share options (C$ per share)	5.01
Top of range | 1.01 - 5.00
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding share options (C$ per share)	5
Top of range | 5.01
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding share options (C$ per share)	$ 10

SHARE-BASED COMPENSATION - Stoc

SHARE-BASED COMPENSATION - Stock Options Fair Value Inputs (Details) $ / shares in Units, shares in Millions	12 Months Ended
	Dec. 31, 2024 CAD ($) shares year $ / shares	Dec. 31, 2023 CAD ($) year shares $ / shares
Granted during the year (in shares) | shares	0.8	1
Options
Weighted average risk-free interest rate	3.70%	3.50%
Weighted average expected volatility	58.30%	57.70%
Weighted average dividend yield	0%	0%
Weighted average expected life of options issued (years) | year	4.5	5
Weighted average grant-date fair value (C$ per share) | $	$ 1.73	$ 1.88
Weighted average share price at grant date (C$ per share) | $ / shares	$ 3.50	$ 3.63
Weighted average exercise price (C$ per share) | $ / shares	$ 3.67	$ 3.70
Deferred share units
Granted during the year (in shares) | shares	0.2	0.5
Weighted average grant-date fair value (C$ per share) | $	$ 5.71	$ 3.55

SHARE-BASED COMPENSATION - Full

SHARE-BASED COMPENSATION - Full Value Award Plans (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangements [Abstract]
Outstanding, beginning of the year (in shares)	6.1	6.3
Granted (in shares)	2.7	3.4
Issued (in shares)	(1.4)	(2.1)
Forfeited and withheld for tax (in shares)	(0.7)	(1.5)
Outstanding, end of the year (in shares)	6.7	6.1

SHARE-BASED COMPENSATION - Rest

SHARE-BASED COMPENSATION - Restricted Stock and Performance Share Units Fair Value Inputs (Details) shares in Millions	12 Months Ended
	Dec. 31, 2024 CAD ($) shares	Dec. 31, 2023 CAD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Granted during the year (in shares)	2.7	3.4
Restricted Share Units
Disclosure of terms and conditions of share-based payment arrangement [line items]
Granted during the year (in shares)	1.8	2.1
Grant-date fair value (C$ per share) | $	$ 3.69	$ 3.69
Performance Share Units
Disclosure of terms and conditions of share-based payment arrangement [line items]
Granted during the year (in shares)	0.7	0.8
Grant-date fair value (C$ per share) | $	$ 3.50	$ 3.65

COST OF SALES (Details)

COST OF SALES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Analysis of income and expense [abstract]
Operating costs	$ 715.1	$ 602.2
Royalties	94.2	44.8
Depreciation expense	273.8	216
Cost of sales	$ 1,083.1	$ 863

COST OF SALES - Narrative (Deta

COST OF SALES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of attribution of expenses by nature to their function [line items]
Cost of sales related to operating below normal capacity	$ 1,083.1	$ 863
Essakane Mine
Disclosure of attribution of expenses by nature to their function [line items]
Cost of sales related to operating below normal capacity	$ 0	$ 14.5

GENERAL AND ADMINSTRATIVE EXP_3

GENERAL AND ADMINSTRATIVE EXPENSES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Analysis of income and expense [abstract]
Salaries	$ 24.8	$ 28.4
Restructuring costs	5.4	2.7
Directors' fees and expenses	1	1.4
Professional and consulting fees	8.6	9.2
Other administration costs	2.9	2.3
Share-based compensation	5	5.6
(Gain) loss on cash flow hedges	0	(0.2)
Depreciation expense	1.2	1.4
General and administrative	$ 48.9	$ 50.8

IMPAIRMENT REVERSAL (CHARGE) (D

IMPAIRMENT REVERSAL (CHARGE) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment charge	$ 455.5	$ 0
Mining properties
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment charge	(6.8)	0
Mining properties, Plant and equipment and ROU assets
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment charge	426.5	0
Asset retirement obligations
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment charge	$ 35.8	$ 0

IMPAIRMENT REVERSAL (CHARGE) -

IMPAIRMENT REVERSAL (CHARGE) - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment charge		$ 455.5	$ 0
West Wood CGU
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment charge	$ 462.3
Discount rate		0.055

OTHER (INCOME) EXPENSES (Detail

OTHER (INCOME) EXPENSES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Analysis of income and expense [abstract]
Changes in asset retirement obligations at closed mines	$ (13.4)	$ 9.7
Write-down of assets	0.9	1.3
Forfeiture of carbon fines	0	13.5
Settlement of carbon fines	0	15
Other	3.3	7.8
Other expenses	$ (9.2)	$ 47.3

FINANCE COSTS (Details)

FINANCE COSTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Borrowing costs [abstract]
Interest expense	$ 95.9	$ 79
Accretion expense - gold prepayment	15.9	10.8
Repurchase option fee	32.7	23.7
Credit Facility fees	6.2	4.1
Accretion expense - asset retirement obligations	5.7	5
Other finance costs	12.9	11.9
Finance Costs Before Borrowing Costs Attributable to Qualifying Assets	169.3	134.5
Borrowing costs attributable to qualifying assets	(98.5)	(113.5)
Finance costs	70.8	21
Interest paid	$ 91.6	$ 68.3

FINANCE COSTS - Narrative (Deta

FINANCE COSTS - Narrative (Details)	Dec. 31, 2024	Sep. 23, 2020
5.75% senior notes | Fixed interest rate
Disclosure of attribution of expenses by nature to their function [line items]
Interest rate	5.75%	5.75%

INTEREST INCOME, DERIVATIVES _3

INTEREST INCOME, DERIVATIVES AND OTHER INVESTMENT GAINS (LOSSES) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Analysis of income and expense [abstract]
Interest income	$ 16.1	$ 27.8
Insurance recoveries	27.3	0.6
Gains (losses) on non-hedge derivatives and warrants	16.1	12.6
Amortization of gains related to flow-through common shares	1.1	0
9.7% of Côté Gold pre-Commercial Production gold received by SMM	18.4	0
9.7% of Côté Gold expenses funded by SMM	(6.6)	0
Gain on sale of Pitangui and Acurui Projects	0	15.5
Fair value of deferred consideration from the sale of Sadiola	1.8	(4.3)
Other gains (losses)	(3.3)	1
Interest income, derivatives and other investment gains (losses)	$ 70.9	$ 53.2

INTEREST INCOME, DERIVATIVES _4

INTEREST INCOME, DERIVATIVES AND OTHER INVESTMENT GAINS (LOSSES) - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of detailed information about borrowings [line items]
Insurance recoveries	$ 27.3	$ 0.6
Derivative (gain) loss	20.4	$ 22.9
Term Loan
Disclosure of detailed information about borrowings [line items]
Derivative (gain) loss	$ 21.6

EXPENSES BY NATURE (Details)

EXPENSES BY NATURE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Analysis of income and expense [abstract]
Salaries, short-term incentives, and other benefits	$ 213.7	$ 177.8
Share-based compensation	5.7	4.8
Other	6.4	4.1
Total expenses	$ 225.8	$ 186.7

EARNINGS PER SHARE - Basic Earn

EARNINGS PER SHARE - Basic Earnings (Loss) per Share Computations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Earnings (loss) per share from continuing operations ($ per share)
Net earnings (loss) from continuing operations attributable to equity holders	$ 819.6	$ 88.7
Net earnings (loss) from discontinued operations attributable to equity holders	0	5.6
Net earnings (loss) attributable to equity holders	$ 819.6	$ 94.3
Denominator
Weighted average number of common shares (basic) (in shares)	539.8	480.6
Basic earnings (loss) from continuing operations per share attributable to equity holders (in dollars per share)	$ 1.52	$ 0.18
Basic earnings (loss) from discontinued operations per share attributable to equity holders (in dollars per share)	0	0.01
Basic earnings (loss) per share attributable to equity holders (in dollars per share)	$ 1.52	$ 0.19

EARNINGS PER SHARE - Diluted Ea

EARNINGS PER SHARE - Diluted Earnings (Loss) per Share Computation (Details) - $ / shares shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Earnings per share [abstract]
Weighted average number of common shares (basic) (in shares)	539.8	480.6
Dilutive effect of options (in shares)	0.7	0
Dilutive effect of share units (in shares)	5.4	4
Weighted average number of common shares (diluted) (in shares)	545.9	484.6
Diluted earnings (loss) from continuing operations per share attributable to equity holders (in dollars per share)	$ 1.50	$ 0.18
Diluted earnings (loss) from discontinued operations per share attributable to equity holders (in dollars per share)	0	0.01
Diluted earnings (loss) per share attributable to equity holders (in dollars per share)	$ 1.50	$ 0.19

EARNINGS PER SHARE - Antidiluti

EARNINGS PER SHARE - Antidilutive Securities (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Options
Earnings per share [line items]
Antidilutive securities (in shares)	0.2	5.2

CASH FLOW ITEMS - Other Non-Cas

CASH FLOW ITEMS - Other Non-Cash Items, Operating Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of maturity analysis of undiscounted cash outflows to repurchase derecognised financial assets or amounts payable to transferee in respect of transferred assets [line items]
Share-based compensation	$ 5.7	$ 6.2
9.7% of Côté Gold pre-Commercial Production gold received by SMM	(18.4)	0
9.7% of Côté Gold expenses funded by SMM	6.6	0
Write-down (reversal) of inventories	3.6	5.9
Changes in estimates of asset retirement obligations at closed sites	(13.4)	9.7
Derivative (gain) loss	(20.4)	(22.9)
Interest income	(16.1)	(27.8)
Gain on sale of Pitangui and Acurui Projects	(34.1)	(109.1)
Effects of exchange rate fluctuation on cash and cash equivalents	7	(1.3)
Effects of exchange rate fluctuation on restricted cash	4.1	(2.8)
Insurance recoveries	(27.3)	(0.6)
Other	(12)	6.6
Total other non-cash items	(80.6)	(42.5)
Pitangui and Acurui Projects
Disclosure of maturity analysis of undiscounted cash outflows to repurchase derecognised financial assets or amounts payable to transferee in respect of transferred assets [line items]
Gain on sale of Pitangui and Acurui Projects	$ 0	$ (15.5)

CASH FLOW ITEMS - Changes in No

CASH FLOW ITEMS - Changes in Non-Cash Working Capital Items and Non-Current Ore Stockpiles (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash Flow Statement [Abstract]
Receivables and other current assets	$ (45.6)	$ 18
Inventories and non-current ore stockpiles	(51.4)	(76.6)
Accounts payable and accrued liabilities	(17.4)	43.7
Movements in non-cash working capital items and non-current ore stockpiles	$ (114.4)	$ (14.9)

CASH FLOW ITEMS - Changes in Ot

CASH FLOW ITEMS - Changes in Other Investing Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash Flow Statement [Abstract]
Interest received	$ 18.1	$ 26.3
Fayolle royalty payment	0	(1.1)
(Increase) decrease in restricted cash	(6.2)	(31)
Capital expenditures for exploration and evaluation assets	(1)	0
Disposal of marketable securities	8.2	(0.4)
Other	(0.6)	0.9
Other investing activities	$ 18.5	$ (5.3)

CASH FLOW ITEMS - Other Financi

CASH FLOW ITEMS - Other Financing Activites (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash Flow Statement [Abstract]
Interest paid	$ (13.8)	$ 0
Dividends paid to non-controlling interests	(18)	(13.7)
Proceeds from issuance of flow-through common shares	5.9	0
Repayment of equipment loans	(5.1)	(9.2)
Payment of lease obligations	(20.6)	(6)
Common shares issued for cash on exercise of stock options	6.1	0.4
Other	(13.5)	(18.9)
Other financing activities	$ (59)	$ (47.4)

CASH FLOW ITEMS - Reconciliatio

CASH FLOW ITEMS - Reconciliation of Long-Term Debt Arising from Financing Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 23, 2020
Long-term debt
Reconciliation Of Long-Term Debt Arising From Financing Activities [Roll Forward]
Beginning balance	$ 830.8	$ 918.7
Draws	280	400
Deferred transaction costs		(23)
Repayments	(65.1)	(464.2)
Non-cash changes:
Amortization of deferred financing charges	5.3	3.8
Foreign currency translation		0.2
Change in fair value of embedded derivative	(21.6)	(4.1)
Other	(0.5)	(0.6)
Ending balance	1,028.9	830.8
Equipment loans | Long-term debt
Reconciliation Of Long-Term Debt Arising From Financing Activities [Roll Forward]
Beginning balance	7.2	16.1
Draws	0	0
Deferred transaction costs		0
Repayments	(5.1)	(9.2)
Non-cash changes:
Amortization of deferred financing charges	0	0.1
Foreign currency translation		0.2
Change in fair value of embedded derivative	0	0
Other	0	0
Ending balance	$ 2.1	7.2
5.75% senior notes | Fixed interest rate
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Interest rate	5.75%		5.75%
5.75% senior notes | Long-term debt
Reconciliation Of Long-Term Debt Arising From Financing Activities [Roll Forward]
Beginning balance	$ 448	447.6
Draws	0	0
Deferred transaction costs		0
Repayments	0	0
Non-cash changes:
Amortization of deferred financing charges	0.9	0.9
Foreign currency translation		0
Change in fair value of embedded derivative	0	0
Other	(0.5)	(0.5)
Ending balance	448.4	448
Credit facility | Long-term debt
Reconciliation Of Long-Term Debt Arising From Financing Activities [Roll Forward]
Beginning balance	0	455
Draws	280	0
Deferred transaction costs		0
Repayments	(60)	(455)
Non-cash changes:
Amortization of deferred financing charges	0	0
Foreign currency translation		0
Change in fair value of embedded derivative	0	0
Other	0	0
Ending balance	$ 220	0
Term Loan | Fixed interest rate
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Interest rate	8.25%
Term Loan | Long-term debt
Reconciliation Of Long-Term Debt Arising From Financing Activities [Roll Forward]
Beginning balance	$ 375.6	0
Draws	0	400
Deferred transaction costs		(23)
Repayments	0	0
Non-cash changes:
Amortization of deferred financing charges	4.4	2.8
Foreign currency translation		0
Change in fair value of embedded derivative	(21.6)	(4.1)
Other	0	(0.1)
Ending balance	$ 358.4	$ 375.6

SEGMENTED INFORMATION - Balance

SEGMENTED INFORMATION - Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure of operating segments [line items]
Total non- current assets	$ 4,706.1	$ 3,784.2
Assets	5,374.4	4,537.9
Total liabilities	1,973.7	2,273.8
Assets held for sale
Disclosure of operating segments [line items]
Total non- current assets	0	0
Assets	0	34.6
Total liabilities	0	5.6
Gold mines
Disclosure of operating segments [line items]
Total non- current assets	4,557.2	3,643.8
Assets	5,044.4	4,127.9
Total liabilities	708.9	767.1
Gold mines | Côté Gold
Disclosure of operating segments [line items]
Total non- current assets	2,887	2,521.5
Assets	3,016	2,638
Total liabilities	227.3	243.2
Gold mines | Essakane
Disclosure of operating segments [line items]
Total non- current assets	882.2	764.4
Assets	1,206.2	1,100.4
Total liabilities	281.9	274.2
Gold mines | Westwood complex
Disclosure of operating segments [line items]
Total non- current assets	788	357.9
Assets	822.2	389.5
Total liabilities	199.7	249.7
Exploration and evaluation and development
Disclosure of operating segments [line items]
Total non- current assets	74.4	37.7
Assets	77.7	47.4
Total liabilities	9.3	1.3
Corporate
Disclosure of operating segments [line items]
Total non- current assets	74.5	102.7
Assets	252.3	328
Total liabilities	$ 1,255.5	$ 1,499.8

SEGMENTED INFORMATION - Stateme

SEGMENTED INFORMATION - Statement of Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of operating segments [line items]
Revenues	$ 1,633	$ 987.1
Cost of sales		647
Depreciation expense	273.8	216
General and administrative	48.9	50.8
Exploration	21.7	26.3
Impairment	(455.5)	0
Other	9.2	(47.3)
Earnings (loss) from operations	944	(0.3)
Net capital expenditures		934.2
9.7% of Côté Gold pre-Commercial Production gold received by SMM	18.4	0
9.7% of Côté Gold expenses funded by SMM	6.6	0
Other income (expenses)	$ 9.2	(47.3)
Côté Gold
Disclosure of operating segments [line items]
Proportion of voting rights held in joint venture	70%
Discontinued operations
Disclosure of operating segments [line items]
Revenues		47.2
Cost of sales		23.8
Depreciation expense		0
General and administrative		0
Exploration		0.1
Impairment		0
Other		(1.3)
Earnings (loss) from operations		22
Net capital expenditures		10.8
Other income (expenses)		(1.3)
Aggregate continuing and discontinued operations
Disclosure of operating segments [line items]
Revenues	$ 1,633	1,034.3
Cost of sales	809.3	670.8
Depreciation expense	273.8	216
General and administrative	48.9	50.8
Exploration	21.7	26.4
Impairment	(455.5)	0
Other	9.2	(48.6)
Earnings (loss) from operations	944	21.7
Net capital expenditures	522	945
Other income (expenses)	9.2	(48.6)
Gold mines
Disclosure of operating segments [line items]
Revenues	1,690.5	986.2
Cost of sales	809.3	647
Depreciation expense	272.7	214.9
General and administrative	0	0.4
Exploration	6.5	4.2
Impairment	(455.5)	0
Other	11.4	(43)
Earnings (loss) from operations	1,068.9	76.7
Net capital expenditures	$ 520.4	933.8
Revenue and expenses, percentage	9.70%
Other income (expenses)	$ 11.4	(43)
Gold mines | Côté Gold
Disclosure of operating segments [line items]
Revenues	284.3	0
Cost of sales	115	0
Depreciation expense	56.7	0
General and administrative	0	0.4
Exploration	6.5	4.2
Impairment	0	0
Other	(0.5)	(1)
Earnings (loss) from operations	105.6	(5.6)
Net capital expenditures	$ 268.8	731.6
Capital expenditures, percentage	70%
Revenue and expenses, percentage	60.30%
Other income (expenses)	$ (0.5)	(1)
Gold mines | Essakane
Disclosure of operating segments [line items]
Revenues	1,083.2	809.6
Cost of sales	536.8	502.4
Depreciation expense	162.3	183.6
General and administrative	0	0
Exploration	0	0
Impairment	0	0
Other	0.3	(31.6)
Earnings (loss) from operations	384.4	92
Net capital expenditures	185.5	136.6
Other income (expenses)	0.3	(31.6)
Gold mines | Westwood complex
Disclosure of operating segments [line items]
Revenues	323	176.6
Cost of sales	157.5	144.6
Depreciation expense	53.7	31.3
General and administrative	0	0
Exploration	0	0
Impairment	(455.5)	0
Other	11.6	(10.4)
Earnings (loss) from operations	578.9	(9.7)
Net capital expenditures	66.1	65.6
Other income (expenses)	11.6	(10.4)
Exploration and evaluation and development
Disclosure of operating segments [line items]
Revenues	0	0
Cost of sales	0	0
Depreciation expense	0	0
General and administrative	0	0
Exploration	15.2	22.1
Impairment	0	0
Other	(0.7)	(0.2)
Earnings (loss) from operations	(15.9)	(22.3)
Net capital expenditures	0	0
Other income (expenses)	(0.7)	(0.2)
Corporate
Disclosure of operating segments [line items]
Revenues	(57.5)	0.9
Cost of sales	0	0
Depreciation expense	1.1	1.1
General and administrative	48.9	50.4
Exploration	0	0
Impairment	0	0
Other	(1.5)	(4.1)
Earnings (loss) from operations	(109)	(54.7)
Net capital expenditures	1.6	0.4
Other income (expenses)	$ (1.5)	$ (4.1)

COMMITMENTS - Contractual Oblig

COMMITMENTS - Contractual Obligation (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Commitments [Abstract]
Purchase obligations	$ 155	$ 209.9
Capital expenditure obligations	117.2	158.8
Lease obligations	142.8	130.4
Contractual obligation	$ 415	$ 499.1

COMMITMENTS - Commitments Payme

COMMITMENTS - Commitments Payments due by Period (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure Of Commitments [Line Items]
Purchase obligations	$ 155	$ 209.9
Capital expenditure obligations	117.2	158.8
Lease obligations	142.8	130.4
Contractual obligation	415	$ 499.1
2025
Disclosure Of Commitments [Line Items]
Purchase obligations	141.6
Capital expenditure obligations	102.3
Lease obligations	39.8
Contractual obligation	283.7
2-3 yrs
Disclosure Of Commitments [Line Items]
Purchase obligations	6.9
Capital expenditure obligations	14.9
Lease obligations	70.1
Contractual obligation	91.9
4-5 yrs
Disclosure Of Commitments [Line Items]
Purchase obligations	2
Capital expenditure obligations	0
Lease obligations	23.4
Contractual obligation	25.4
>5 yrs
Disclosure Of Commitments [Line Items]
Purchase obligations	4.5
Capital expenditure obligations	0
Lease obligations	9.5
Contractual obligation	$ 14

COMMITMENTS - Royalties in Cost

COMMITMENTS - Royalties in Cost of Sales (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure Of Commitments [Line Items]
Royalties	$ 94.2	$ 44.8
Aggregate continuing and discontinued operations
Disclosure Of Commitments [Line Items]
Royalties	94.2	44.8
Côté Gold | Discontinued operations
Disclosure Of Commitments [Line Items]
Royalties	19.4	0
Essakane mine
Disclosure Of Commitments [Line Items]
Royalties	74.5	44.6
Westwood
Disclosure Of Commitments [Line Items]
Royalties	$ 0.3	$ 0.2

RELATED PARTY TRANSACTIONS - Co

RELATED PARTY TRANSACTIONS - Compensation of Key Management Personnel (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Related Party [Abstract]
Salaries and other benefits	$ 5.5	$ 7.2
Retirement benefits	0.7	2.1
Share-based payments	3.2	4.2
Key management personnel compensation	$ 9.4	$ 13.5