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Exploration Contracts - Exploration and evaluation expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Exploration and Evaluation Expenses |  |
Environmental Studies | $ 3,234 | $ 16,421
Exploration Labor | 9,424 | 8,206
Share-Based Compensation (Note 17) | 10,451 | 5,033
Mining, Technological and Process Development | 22,392 | 14,956
Prefeasibility Studies | 1,120 | 1,345
Sponsorship, Training and Stakeholder Engagement | 3,069 | 3,446
Permit Application Activities | 297 |
Other | 656 | 442
Exploration and evaluation expenses | 50,643 | 49,849
NORI Exploration Contract |  |
Exploration and Evaluation Expenses |  |
Environmental Studies | 2,891 | 16,421
Exploration Labor | 8,706 | 7,268
Share-Based Compensation (Note 17) | 9,638 | 4,444
Mining, Technological and Process Development | 21,173 | 13,694
Prefeasibility Studies | 1,120 | 1,345
Sponsorship, Training and Stakeholder Engagement | 2,353 | 2,248
Permit Application Activities | 297 |
Other | 640 | 433
Exploration and evaluation expenses | 46,818 | 45,853
Marawa Option Agreement |  |
Exploration and Evaluation Expenses |  |
Environmental Studies | 270 |
Exploration Labor | 85 | 227
Share-Based Compensation (Note 17) | 14 | 146
Sponsorship, Training and Stakeholder Engagement | 115 | 202
Exploration and evaluation expenses | 484 | 575
TOML Exploration Contract |  |
Exploration and Evaluation Expenses |  |
Environmental Studies | 73 |
Exploration Labor | 633 | 711
Share-Based Compensation (Note 17) | 799 | 443
Mining, Technological and Process Development | 1,219 | 1,262
Sponsorship, Training and Stakeholder Engagement | 601 | 996
Other | 16 | 9
Exploration and evaluation expenses | $ 3,341 | $ 3,421

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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 23 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-23 + Details
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