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Derivative instruments - Provisionally priced sales (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
GAIN ON THE PROVISIONAL PRICING OF CONCENTRATE SALES |  |
Realized | $ 13.0 | $ 2.1
Unrealized | (0.5) | 0.6
Total gain | 12.5 | 2.7
Gold |  |
GAIN ON THE PROVISIONAL PRICING OF CONCENTRATE SALES |  |
Realized | 8.3 | 1.5
Unrealized | 0.0 | 0.4
Total gain | 8.3 | 1.9
Copper |  |
GAIN ON THE PROVISIONAL PRICING OF CONCENTRATE SALES |  |
Realized | 4.7 | 0.6
Unrealized | (0.5) | 0.2
Total gain | $ 4.2 | $ 0.8

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- Definition The gains (losses) on the provisionally pricing of concentrate sales which realised during the reporting period. + References No definition available. + Details
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- Definition Totals gains (losses) on the provisionally pricing of concentrate sales which recognised during the reporting period. + References No definition available. + Details
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- Definition The gains (losses) on the provisionally pricing of concentrate sales which recognised as unrealised during the reporting period. + References No definition available. + Details
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