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v3.25.1

INCOME TAXES: (Details) € in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 USD ($) | Mar. 31, 2025 EUR (€) | Mar. 31, 2024 USD ($) | Dec. 31, 2024
INCOME TAXES |  |  |  |
Statutory income tax provision | $ 445.3 |  | $ 363.1 |
Peruvian royalty | 15.1 |  | 9.9 |
Mexican royalty | 47.4 |  | 30.6 |
Peruvian special mining tax | 25.0 |  | 19.8 |
Total provision for income taxes | $ 532.8 |  | $ 423.4 |
Effective income tax rate (as a percent) | 36.00% | 36.00% | 36.60% |
Threshold minimum aggregate revenue under pillar two tax rules | € |  | € 750 |  |
Global minimum tax rate | 15.00% | 15.00% |  |
Peru |  |  |  |
INCOME TAXES |  |  |  |
Royalty charges | $ 40.1 |  | $ 29.7 |
Uncertain tax positions | 35.8 |  |  |
Increase (decrease) in income tax expense (benefit) | 6.2 |  |  |
Unrecognized tax benefits | 19.3 |  |  |
Mexico |  |  |  |
INCOME TAXES |  |  |  |
Mexican royalty | $ 47.4 |  | $ 30.6 |
Mining royalty tax (as a percent) | 8.50% | 8.50% |  | 7.50%
Additional royalty tax (as a percent) | 1.00% | 1.00% |  | 0.50%

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