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Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current assets    
Cash and cash equivalents $ 91,933 $ 39,701
Prepaid expenses and other current assets 1,929 2,700
Marketable securities 24,288 24,046
Inventory, net 10,986 20,967
Total current assets 129,136 87,414
Mineral rights and properties, net 264,240 271,922
Property, plant and equipment, net 37,470 24,017
Intangible assets, net 1,466 471
Restricted cash 8,388 7,751
Marketable securities, non-current 0 837
Right of use assets - operating lease 481 310
Other long-term assets 720 0
Total assets 441,901 392,722
Current liabilities    
Note payable - related party 0 20,108
Operating lease liabilities, current 156 130
Total current liabilities 9,466 30,080
Deferred tax liabilities 26,856 26,980
Asset retirement obligations 18,174 16,918
Convertible senior notes 109,315 0
Operating lease liabilities, non-current 334 202
Total liabilities 164,145 74,180
Commitments and contingencies (Note 10)
Stockholders’ equity    
Common stock 187,104,534 and 186,114,948 shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively 382,009 380,325
Additional paid-in-capital 55,374 59,856
Accumulated deficit (186,179) (150,848)
Accumulated other comprehensive loss (2,635) (3,597)
Total stockholders' equity 248,569 285,736
Non-controlling interests 29,187 32,806
Total equity 277,756 318,542
Total liabilities and stockholders' equity 441,901 392,722
Nonrelated party    
Current liabilities    
Accounts payable and accrued liabilities 9,199 7,464
Related party    
Current liabilities    
Accounts payable and accrued liabilities $ 111 $ 2,378