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v3.25.1

Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment (Details) - USD ($) | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
At cost: |  |
Mineral rights | $ 2,686,739 | $ 2,682,882
Buildings | 68,575,318 | 68,476,868
Plant and machinery | 144,046,220 | 143,839,420
Furniture, fixtures and office equipment | 1,437,153 | 1,435,090
Motor vehicles | 124,394 | 124,215
Construction in process | 10,170,243 | 10,155,642
Total | 227,040,067 | 226,714,117
Less: Accumulated depreciation and amortization | (87,944,670) | (83,826,560)
Impairment | (6,754,076) | (6,744,380)
Net book value | $ 132,341,321 | $ 136,143,177

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