| Schedule of single segment's significant expenses in consistent with Company's consolidated statement of operations and comprehensive loss |
| | | | | | | | | | | Three Months Ended | | Six Months Ended | | | June 30, | | June 30, | Single Reportable Segment | | 2026 | | 2025 | | 2026 | | 2025 | | | | | | | | | | U3O8 sales | | 14,373 | | 10,428 | | 18,277 | | 10,428 | Disposal fees | | — | | 7 | | 27 | | 7 | Sales | | 14,373 | | 10,435 | | 18,304 | | 10,435 | | | | | | | | | | U3O8 product costs | | 12,325 | | 8,397 | | 15,012 | | 8,397 | Lower of cost or NRV adjustments | | 154 | | 98 | | 154 | | 2,696 | Cost of sales | | 12,479 | | 8,495 | | 15,166 | | 11,093 | | | | | | | | | | Gross profit (loss) | | 1,894 | | 1,940 | | 3,138 | | (658) | | | | | | | | | | Exploration and evaluation | | 1,191 | | 1,161 | | 3,470 | | 2,205 | Development | | 15,940 | | 14,062 | | 30,886 | | 23,805 | General and administration | | 2,711 | | 2,199 | | 6,634 | | 4,372 | Accretion of asset retirement obligations | | 488 | | 281 | | 917 | | 558 | Operating costs | | 20,330 | | 17,703 | | 41,907 | | 30,940 | | | | | | | | | | Operating profit (loss) | | (18,436) | | (15,763) | | (38,769) | | (31,598) | | | | | | | | | | Interest income | | 1,029 | | 701 | | 1,794 | | 1,568 | Interest expense | | (2,760) | | (290) | | (5,706) | | (556) | Mark to market gain (loss) | | 4,797 | | (5,622) | | (1,566) | | (1,312) | Foreign exchange gain (loss) | | (1,357) | | (24) | | (1,996) | | (24) | Other income (loss) | | 35 | | 42 | | 776 | | 68 | Net income (loss) | | (16,692) | | (20,956) | | (45,467) | | (31,854) |
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| Schedule of financial assets and liabilities measured at fair value on recurring basis |
| | | | | | | | | | | | | | | | | | | Fair Value Hierarchy as of June 30, 2026 | | Fair Value Hierarchy as of December 31, 2025 | | | Level 1 | | Level 2 | | Level 3 | | Total | | Level 1 | | Level 2 | | Level 3 | | Total | | | | | | | | | | | | | | | | | | Financial instrument assets | | | | | | | | | | | | | | | | | Cash equivalents | | 84,078 | | — | | — | | 84,078 | | 2,938 | | — | | — | | 2,938 | Marketable securities | | 342 | | — | | — | | 342 | | — | | — | | — | | — | Restricted cash equivalents | | 12,904 | | — | | — | | 12,904 | | 11,472 | | — | | — | | 11,472 | Capped call derivative | | — | | 13,865 | | — | | 13,865 | | — | | 15,108 | | — | | 15,108 | | | 97,324 | | 13,865 | | — | | 111,189 | | 14,410 | | 15,108 | | — | | 29,518 | | | | | | | | | | | | | | | | | | Financial instrument liabilities | | | | | | | | | | | | | | | | | Inventory derivative obligation (net) | | — | | 17,500 | | — | | 17,500 | | — | | 16,638 | | — | | 16,638 | Warrant liability | | — | | — | | — | | — | | — | | 1,541 | | — | | 1,541 | Stock option liabilities | | — | | 1,447 | | — | | 1,447 | | — | | 1,346 | | — | | 1,346 | Conversion option derivative | | — | | — | | 48,618 | | 48,618 | | — | | — | | 52,258 | | 52,258 | | | — | | 18,947 | | 48,618 | | 67,565 | | — | | 19,525 | | 52,258 | | 71,783 |
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