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| Note | | Three months ended March 31, 2025 | | Three months ended March 31, 2024 |
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| Revenue | | | | | |
| Metal sales | 8 | | $ | 355,245 | | | $ | 257,967 | |
| | | | | |
| Cost of sales | | | | | |
| Production costs | | | 148,311 | | | 123,006 | |
| Depreciation and amortization | | | 60,169 | | | 54,479 | |
| | | 208,480 | | | 177,485 | |
| | | | | |
| Earnings from mine operations | | | 146,765 | | | 80,482 | |
| | | | | |
| Exploration and evaluation expenses | | | 6,990 | | | 4,433 | |
| Mine standby costs | | | 4,131 | | | 2,686 | |
| General and administrative expenses | | | 7,066 | | | 9,494 | |
| Employee benefit plan expense | | | 1,014 | | | 1,174 | |
| Share-based payments expense | 13 | | 4,362 | | | 2,049 | |
| | | | | |
| Write-down of assets | | | 2,689 | | | 722 | |
| Foreign exchange loss (gain) | | | 6,284 | | | (172) | |
| Earnings from operations | | | 114,229 | | | 60,096 | |
| | | | | |
| Other expense | 9 | | (59,727) | | | (8,934) | |
| Finance (costs) recovery | 10 | | (12,244) | | | 32 | |
| Earnings from continuing operations before income tax | | | 42,258 | | | 51,194 | |
| Income tax (recovery) expense | 11 | | (32,608) | | | 16,052 | |
| Net earnings from continuing operations | | | 74,866 | | | 35,142 | |
| Net loss from discontinued operations, net of tax | | | (1,333) | | | (1,381) | |
| Net earnings for the period | | | $ | 73,533 | | | $ | 33,761 | |
| | | | | |
| Net earnings attributable to: | | | | | |
| Shareholders of the Company | | | 72,402 | | | 33,605 | |
| Non-controlling interests | | | 1,131 | | | 156 | |
| Net earnings for the period | | | $ | 73,533 | | | $ | 33,761 | |
| | | | | |
| Net earnings (loss) attributable to shareholders of the Company: | | | | | |
| Continuing operations | | | 71,983 | | | 35,194 | |
| Discontinued operations | | | 419 | | | (1,589) | |
| | | $ | 72,402 | | | $ | 33,605 | |
| | | | | |
| Net earnings (loss) attributable to non-controlling interest: | | | | | |
| Continuing operations | | | 2,883 | | | (52) | |
| Discontinued operations | | | (1,752) | | | 208 | |
| | | $ | 1,131 | | | $ | 156 | |
| | | | | |
| Weighted average number of shares outstanding | | | | | |
| Basic | 12 | | 204,762,059 | | | 202,706,218 | |
| Diluted | 12 | | 206,501,722 | | | 203,929,570 | |
| | | | | |
| Net earnings per share attributable to shareholders of the Company: | | | | | |
| Basic earnings per share | | | $ | 0.35 | | | $ | 0.17 | |
| Diluted earnings per share | | | $ | 0.35 | | | $ | 0.16 | |
| | | | | |
| Net earnings per share attributable to shareholders of the Company - Continuing operations: | | | | | |
| Basic earnings per share | | | $ | 0.35 | | | $ | 0.17 | |
| Diluted earnings per share | | | $ | 0.35 | | | $ | 0.17 | |