| Components of Cost of Sales |
| | | | | | | | | | | | | | | | | | | Year ended December 31, | | | | | | 2025 | | 2024 | Materials | | | | | $ | 67,833 | | | $ | 44,212 | | Salaries and benefits | | | | | 88,559 | | | 61,348 | | Contracted services | | | | | 78,690 | | | 42,967 | | Maintenance costs | | | | | 53,677 | | | 31,974 | | Utilities | | | | | 19,027 | | | 12,484 | | Other costs | | | | | 2,930 | | | 1,131 | | Change in inventory (excluding depreciation and depletion) | | | | | (18,858) | | | (1,250) | | Cost of production | | | | | 291,858 | | | 192,866 | | Sales expense | | | | | 34,124 | | | 11,107 | | Other expense | | | | | 1,070 | | | — | | Depreciation and depletion | | | | | 132,599 | | | 83,287 | | Change in inventory (depreciation and depletion) | | | | | (18,436) | | | 2,446 | | | | | | | $ | 441,215 | | | $ | 289,706 | |
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