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PROPERTY, PLANT AND EQUIPMENT (Tables) | 9 Months Ended
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Sep. 30, 2025
PROPERTY, PLANT AND EQUIPMENT |
Schedule of major components of property, plant and equipment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
September 30, 2025 |  | Antimony |  | Zeolite |  | All Other |  | TOTAL
Plant and equipment | ​ | $ | 13,754,833 | ​ | $ | 6,658,125 | ​ | $ | 520,926 | ​ | $ | 20,933,884
Buildings | ​ |  | 1,106,303 | ​ |  | 1,705,893 | ​ |  | 456,970 | ​ |  | 3,269,166
Mineral rights and interests | ​ |  | 230,000 | ​ |  | 16,753 | ​ |  | 5,669,863 | ​ |  | 5,916,616
Land | ​ |  | 2,083,094 | ​ |  | — | ​ |  | 929,443 | ​ |  | 3,012,537
Construction in progress | ​ |  | 9,131,631 | ​ |  | 353,429 | ​ |  | — | ​ |  | 9,485,060
Total property, plant and equipment | ​ |  | 26,305,861 | ​ |  | 8,734,200 | ​ |  | 7,577,202 | ​ |  | 42,617,263
Accumulated depreciation | ​ |  | (10,111,874) | ​ |  | (4,106,653) | ​ |  | (277,398) | ​ |  | (14,495,925)
Property, plant and equipment, net | ​ | $ | 16,193,987 | ​ | $ | 4,627,547 | ​ | $ | 7,299,804 | ​ | $ | 28,121,338
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2024 |  | Antimony |  | Zeolite |  | All Other |  | TOTAL
Plant and equipment | ​ | $ | 13,512,321 | ​ | $ | 6,597,781 | ​ | $ | 427,720 | ​ | $ | 20,537,822
Buildings | ​ |  | 1,106,303 | ​ |  | 1,705,893 | ​ |  | 11,970 | ​ |  | 2,824,166
Mineral rights and interests | ​ |  | — | ​ |  | 16,753 | ​ |  | 125,000 | ​ |  | 141,753
Land | ​ |  | 2,083,094 | ​ |  | — | ​ |  | 914,443 | ​ |  | 2,997,537
Construction in progress | ​ |  | — | ​ |  | 101,938 | ​ |  | — | ​ |  | 101,938
Total property, plant and equipment | ​ |  | 16,701,718 | ​ |  | 8,422,365 | ​ |  | 1,479,133 | ​ |  | 26,603,216
Accumulated depreciation | ​ |  | (9,602,469) | ​ |  | (3,857,785) | ​ |  | (251,515) | ​ |  | (13,711,769)
Property, plant and equipment, net | ​ | $ | 7,099,249 | ​ | $ | 4,564,580 | ​ | $ | 1,227,618 | ​ | $ | 12,891,447
January Fairbanks Agreement |
PROPERTY, PLANT AND EQUIPMENT |
Schedule of properties, plants and equipment by location | ​
​ | ​ | ​ | ​
Payment Date |  | Payment Amount
January 2025 | ​ | $ | 100,000
July 2025 | ​ |  | 50,000
January 2026 | ​ |  | 50,000
July 2026 | ​ |  | 50,000
January 2027 | ​ |  | 50,000
July 2027 | ​ |  | 50,000
January 2028 | ​ |  | 50,000
July 2028 | ​ |  | 50,000
January 2029 | ​ |  | 100,000
July 2029 | ​ |  | 100,000
January 2030 | ​ |  | 100,000
July 2030 | ​ |  | 2,250,000
Total | ​ | $ | 3,000,000
March Fairbanks Agreement |
PROPERTY, PLANT AND EQUIPMENT |
Schedule of properties, plants and equipment by location | ​
​ | ​ | ​ | ​
Payment Date |  | Payment Amount
March 2025 | ​ | $ | 50,000
September 2025 | ​ |  | 25,000
March 2026 | ​ |  | 25,000
March 2027 | ​ |  | 25,000
March 2028 | ​ |  | 25,000
March 2029 | ​ |  | 275,000
Total | ​ | $ | 425,000
June Fairbanks Agreement |
PROPERTY, PLANT AND EQUIPMENT |
Schedule of properties, plants and equipment by location | ​
​ | ​ | ​ | ​
Payment Date |  | Payment Amount
Within 10 days of June 1, 2025 | ​ | $ | 150,000
December 2025 | ​ |  | 100,000
June 2026 | ​ |  | 100,000
June 2027 | ​ |  | 100,000
June 2028 | ​ |  | 100,000
June 2029 | ​ |  | 1,450,000
Total | ​ | $ | 2,000,000
September Fairbanks Agreement |
PROPERTY, PLANT AND EQUIPMENT |
Schedule of properties, plants and equipment by location | ​
​ | ​ | ​ | ​
Payment Date |  | Payment Amount
September 2025 | ​ | $ | 50,000
March 2026 | ​ |  | 25,000
September 2026 | ​ |  | 50,000
September 2027 | ​ |  | 50,000
September 2028 | ​ |  | 50,000
September 2029 | ​ |  | 275,000
Total | ​ | $ | 500,000

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