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CLOSURE AND RECLAMATION PROVISIONS | 12 Months Ended
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Dec. 31, 2022
Closure and Reclamation Provisions [abstract] |
CLOSURE AND RECLAMATION PROVISIONS | ​ 15. CLOSURE AND RECLAMATION PROVISIONS ​ The following table summarizes the changes in closure and reclamation provisions: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Closure and Reclamation Provisions
​ | ​ |  | Caylloma Mine |  | San Jose Mine | ​ | Lindero Mine | ​ |  | Yaramoko Mine | ​ | ​ | Séguéla Project | ​ | ​ | Total
Balance at December 31, 2021 | ​ | ​ | $ | 14,898 | ​ | $ | 7,128 | ​ | $ | 19,639 | ​ | $ | 12,895 | ​ | $ | 1,552 | ​ | $ | 56,112
Changes in estimate | ​ | ​ | ​ | (1,235) | ​ | ​ | (493) | ​ | ​ | (8,666) | ​ | ​ | 135 | ​ | ​ | 5,238 | ​ | ​ | (5,021)
Reclamation expenditures | ​ | ​ | ​ | (503) | ​ | ​ | (120) | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | (623)
Accretion | ​ | ​ | ​ | 796 | ​ | ​ | 682 | ​ | ​ | 541 | ​ | ​ | 345 | ​ | ​ | - | ​ | ​ | 2,364
Effect of changes in foreign exchange rates | ​ | ​ | ​ | - | ​ | ​ | 473 | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | 473
Balance at December 31, 2022 | ​ | ​ | ​ | 13,956 | ​ | ​ | 7,670 | ​ | ​ | 11,514 | ​ | ​ | 13,375 | ​ | ​ | 6,790 | ​ | ​ | 53,305
Less: Current portion | ​ | ​ | ​ | (1,577) | ​ | ​ | (600) | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | (2,177)
Non-current portion | ​ | ​ | $ | 12,379 | ​ | $ | 7,070 | ​ | $ | 11,514 | ​ | $ | 13,375 | ​ | $ | 6,790 | ​ | $ | 51,128
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Closure and Reclamation Provisions
​ | ​ | ​ | Caylloma Mine |  | San Jose Mine | ​ | Lindero Project | ​ |  | Yaramoko Mine | ​ | ​ | Séguéla Project | ​ | ​ | Total
Balance at December 31, 2020 | ​ | ​ | $ | 14,761 | ​ | $ | 5,905 | ​ | $ | 19,684 | ​ | $ | - | ​ | $ | - | ​ | $ | 40,350
Acquisition of Roxgold | ​ | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | 11,122 | ​ | ​ | - | ​ | ​ | 11,122
Changes in estimate | ​ | ​ | ​ | (152) | ​ | ​ | 1,142 | ​ | ​ | (422) | ​ | ​ | 1,609 | ​ | ​ | 1,552 | ​ | ​ | 3,729
Reclamation expenditures | ​ | ​ | ​ | (180) | ​ | ​ | (173) | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | (353)
Accretion | ​ | ​ | ​ | 469 | ​ | ​ | 439 | ​ | ​ | 377 | ​ | ​ | 164 | ​ | ​ | - | ​ | ​ | 1,449
Effect of changes in foreign exchange rates | ​ | ​ | ​ | - | ​ | ​ | (185) | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | (185)
Balance at December 31, 2021 | ​ | ​ | ​ | 14,898 | ​ | ​ | 7,128 | ​ | ​ | 19,639 | ​ | ​ | 12,895 | ​ | ​ | 1,552 | ​ | ​ | 56,112
Less: Current portion | ​ | ​ | ​ | (1,230) | ​ | ​ | (652) | ​ | ​ | - | ​ | ​ | - | ​ | ​ | - | ​ | ​ | (1,882)
Non-current portion | ​ | ​ | $ | 13,668 | ​ | $ | 6,476 | ​ | $ | 19,639 | ​ | $ | 12,895 | ​ | $ | 1,552 | ​ | $ | 54,230
​ The following table summarizes certain key inputs used in determining the present value of reclamation costs related to mine and development sites: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Closure and Reclamation Provisions
​ | ​ | ​ | Caylloma Mine | ​ | San Jose Mine | ​ | Lindero Mine | ​ | ​ | Yaramoko Mine | ​ | ​ | Séguéla Project | ​ | ​ | Total
Undiscounted uninflated estimated cash flows | ​ | ​ | $ | 15,823 | ​ | $ | 8,413 | ​ | $ | 14,138 | ​ | $ | 14,113 | ​ | $ | 7,525 | ​ | $ | 60,012
Discount rate | ​ | ​ | ​ | 5.88% | ​ | ​ | 9.35% | ​ | ​ | 4.14% | ​ | ​ | 4.22% | ​ | ​ | 3.88% | ​ | ​ | ​
Inflation rate | ​ | ​ | ​ | 2.30% | ​ | ​ | 7.13% | ​ | ​ | 1.96% | ​ | ​ | 3.67% | ​ | ​ | 2.20% | ​ | ​ | ​
​ The Company is expecting to incur progressive reclamation costs throughout the life of its mines.

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