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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Current assets |  |
Cash and cash equivalents | $ 284,434 | $ 263,351
Short-term investments | 582,056 | 734,493
Total cash, cash equivalents and short-term investments | 866,490 | 997,844
Accounts receivable, net of allowance for credit losses of $0 and $0, respectively (including related party) | 14,549 | 10,029
Inventories | 116,699 | 95,182
Government grant receivable | 7,846 | 19,302
Prepaid expenses and other current assets | 11,599 | 8,820
Total current assets | 1,017,183 | 1,131,177
Non-current assets |  |
Property, plant and equipment, net | 1,230,517 | 1,158,054
Operating lease right-of-use assets | 9,004 | 10,065
Inventories | 19,825 | 13,350
Equity method investment | 8,962 | 9,673
Intangible assets, net | 7,970 | 8,881
Other non-current assets | 6,825 | 5,252
Total non-current assets | 1,283,103 | 1,205,275
Total assets | 2,300,286 | 2,336,452
Current liabilities |  |
Accounts and construction payable | 21,711 | 27,995
Accrued liabilities | 66,224 | 73,939
Deferred revenue | 50,000 | 0
Other current liabilities | 8,854 | 6,616
Total current liabilities | 146,789 | 108,550
Non-current liabilities |  |
Asset retirement obligations | 5,856 | 5,518
Environmental obligations | 16,506 | 16,545
Long-term debt, net | 937,634 | 681,980
Operating lease liabilities | 6,016 | 6,829
Deferred government grant | 19,836 | 17,433
Deferred income taxes | 98,541 | 130,793
Other non-current liabilities | 4,568 | 3,025
Total non-current liabilities | 1,088,957 | 862,123
Total liabilities | 1,235,746 | 970,673
Commitments and contingencies (Note 13) |  |
Stockholders’ equity: |  |
Preferred stock ($0.0001 par value, 50,000,000 shares authorized, none issued and outstanding in either period) | 0 | 0
Common stock ($0.0001 par value, 450,000,000 shares authorized, 178,439,486 and 178,082,383 shares issued, and 163,189,704 and 178,082,383 shares outstanding, as of September 30, 2024, and December 31, 2023, respectively) | 18 | 17
Additional paid-in capital | 948,687 | 979,891
Retained earnings | 342,644 | 385,726
Accumulated other comprehensive income | 296 | 145
Treasury stock, at cost, 15,249,782 and 0 shares, respectively | (227,105) | 0
Total stockholders’ equity | 1,064,540 | 1,365,779
Total liabilities and stockholders’ equity | $ 2,300,286 | $ 2,336,452

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