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PROVISIONS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Provisions |  |
Balance at the beginning of the period | $ 938.7 |
Balance at the end of the period | 1,004.0 | $ 938.7
Less: current portion | (62.5) | (48.8)
Non-current portion | 941.5 | 889.9
Reclamation and remediation obligations |  |
Provisions |  |
Balance at the beginning of the period | 876.9 | 779.0
Change in estimate | 60.0 | 83.1
Accretion | 40.9 | 37.0
Payments | (29.2) | (22.2)
Balance at the end of the period | 948.6 | 876.9
Less: current portion | (55.7) | (43.4)
Non-current portion | 892.9 | 833.5
Other operating expense | 6.9 | 19.2
Letter of credit issued to various agencies | 478.4 | 418.9
Surety bonds outstanding | $ 451.8 | $ 375.1
Reclamation and remediation obligations | Minimum |  |
Provisions |  |
Discount rate used in estimating site restoration cost obligation (in percent) | 4.30% | 3.80%
Inflation rate used in estimating the site restoration cost obligation (in percent) | 1.90% | 2.00%
Reclamation and remediation obligations | Maximum |  |
Provisions |  |
Discount rate used in estimating site restoration cost obligation (in percent) | 8.40% | 8.40%
Inflation rate used in estimating the site restoration cost obligation (in percent) | 4.20% | 4.50%
Other |  |
Provisions |  |
Balance at the beginning of the period | $ 61.8 |
Balance at the end of the period | $ 55.4 | $ 61.8

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