| Schedule of cost of sales is costs that directly relate to production at the mine operating segments |
| | Three-month | | | Three-month | | | Nine-month | | | Nine-month | | | | period ended | | | period ended | | | period ended | | | period ended | | | | September 30, | | | September 30, | | | September 30, | | | September 30, | | | | 2025 | | | 2024 Revised (1) | | | 2025 | | | 2024 Revised (1) | | | | | | | | | | | | | | | Salaries and employee benefits | | $ | 7,795 | | | $ | 8,226 | | | $ | 22,261 | | | $ | 24,047 | | Raw materials and consumables | | | 3,600 | | | | 8,603 | | | | 16,726 | | | | 25,793 | | Utilities | | | 985 | | | | 1,090 | | | | 3,126 | | | | 3,367 | | Transportation costs | | | 373 | | | | 1,308 | | | | 1,945 | | | | 4,258 | | Other costs | | | 2,682 | | | | 1,509 | | | | 7,224 | | | | 4,692 | | Costs before intended use | | | 6,759 | | | | 454 | | | | 12,995 | | | | 871 | | Changes in inventories | | | (3,511 | ) | | | (978 | ) | | | (2,900 | ) | | | (1,034 | ) | Inventory write-downs (Note 6) | | | 1,455 | | | | 53 | | | | 3,379 | | | | 871 | | | | $ | 20,138 | | | $ | 20,265 | | | $ | 64,756 | | | $ | 62,865 | |
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