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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Current assets    
Cash and cash equivalents $ 39,701 $ 7,493
Prepaid expenses and other current assets 2,700 931
Marketable securities 24,046 16,886
Inventory 20,967 9
Total current assets 87,414 25,319
Mineral rights and properties, net 271,922 274,490
Property, plant and equipment, net 24,017 14,970
Intangible assets, net 471 514
Restricted cash 7,751 7,680
Noncurrent marketable securities 837 3,047
Right of use assets - operating lease 310 459
Other long-term assets 0 88
Total assets 392,722 326,567
Current liabilities    
Note payable - related party 20,108  
Operating lease liabilities, current 130 178
Total current liabilities 30,080 6,281
Deferred tax liabilities 26,980 27,959
Asset retirement obligations 16,918 10,828
Convertible promissory note 0 19,239
Operating lease liabilities, non-current 202 294
Total liabilities 74,180 64,601
Commitments and contingencies (Note 12)
Stockholders’ equity    
Common stock 186,114,948 and 165,133,798 shares issued and outstanding as of December 31, 2024 and 2023, respectively 380,325 308,198
Equity portion of convertible promissory note 0 3,813
Additional paid-in-capital 59,856 41,203
Accumulated deficit (150,848) (89,456)
Accumulated other comprehensive loss (3,597) (1,792)
Total stockholders' equity 285,736 261,966
Non-controlling interests 32,806 0
Total equity 318,542 261,966
Total liabilities and stockholders' equity 392,722 326,567
Nonrelated party    
Current liabilities    
Accounts payable and accrued liabilities 7,464 3,582
Related party    
Current liabilities    
Accounts payable and accrued liabilities $ 2,378 2,521
Note payable - related party   $ 0