v3.26.1
Mineral exploration and project evaluation (Tables)
12 Months Ended
Dec. 31, 2025
Notes and other explanatory information [abstract]  
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)