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v3.21.1

COST OF SALES (Tables) | 12 Months Ended
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Dec. 31, 2020
Cost Of Sales [abstract] |
Disclosure of cost of sales [Table Text Block] |
|  | Years ended December 31, |
|  | 2020 |  |  | 2019 |
Site operating costs |  | 216,415 |  |  | 244,611 |
Transportation costs |  | 18,248 |  |  | 17,832 |
Changes in inventories of finished goods |  | 939 |  |  | (5,570 | )
Changes in inventories of ore stockpiles |  | (11,361 | ) |  | 1,677 |
Production costs |  | 224,241 |  |  | 258,550 |
Depletion and amortization |  | 95,301 |  |  | 109,756 |
Cost of sales |  | 319,542 |  |  | 368,306 |

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- Definition Cost of sales [abstract] + References No definition available. + Details
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- Definition Disclosure of detailed information about cost of sales. + References No definition available. + Details
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