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Mineral exploration and project evaluation (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes and other explanatory information [abstract] |
Schedule of mineral exploration and project evaluation costs |
Schedule of mineral exploration and project evaluation costs |  |  |
| 2025 | 2024 | 2023
Mineral exploration | (63,132) | (48,855) | (57,988)
Project evaluation | (18,564) | (19,121) | (41,624)
Mineral exploration and Project development | (81,696) | (67,976) | (99,612)

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