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COMMITMENTS AND CONTINGENCIES: - Guaymas sulfuric acid spill (Details) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 09, 2019 m³ | Mar. 31, 2024 USD ($) item T | Dec. 31, 2023 $ / item | May 09, 2023
Percentage of net earnings contribution |  | 5.00% |  |
Climate change |  |  |  |
Number of business units | item |  | 2 |  |
Threshold annual greenhouse gas emissions | T |  | 100,000 |  |
Climate change | Minimum |  |  |  |
Tax rate per tonne Of Carbon dioxide | $ / item |  |  | 9 |
Average cost per business unit | $ |  | $ 6,000 |  |
Climate change | Maximum |  |  |  |
Tax rate per tonne Of Carbon dioxide | $ / item |  |  | 18 |
Threshold annual greenhouse gas emissions reporting to National emissions registry | T |  | 25,000 |  |
Marine Terminal in Guaymas |  |  |  |
Volume of sulfuric acid discharged in the incident at Guaymas | m³ | 3 |  |  |
El Pilar | Minimum |  |  |  |
Estimated useful lives of buildings and equipment |  |  |  | 50 years
El Pilar | Maximum |  |  |  |
Estimated useful lives of buildings and equipment |  |  |  | 30 years

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