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INVENTORIES - Schedule of Inventory, Current (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Inventory Disclosure [Abstract] |  |
Concentrates and work-in-progress | $ 35,807 | $ 35,476
Inventory of ore in stockpiles | 3,072 | 940
Raw materials and consumables | 1,841 | 4,204
Total inventories | $ 40,720 | $ 40,620

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