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Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
At cost: |  |
Mineral rights | $ 2,682,882 | $ 2,722,997
Buildings | 68,476,868 | 29,863,200
Plant and machinery | 143,839,420 | 185,738,906
Furniture, fixtures and office equipment | 1,435,090 | 1,456,547
Motor vehicles | 124,215 | 126,072
Construction in process | 10,155,642 | 10,307,491
Total | 226,714,117 | 230,215,213
Less: Accumulated depreciation and amortization | (83,826,560) | (108,027,190)
Impairment | (6,744,380) | 0
Net book value | $ 136,143,177 | $ 122,188,023

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