NET Power Inc.
For the period ended Dec 31, 2025. Filed Mar 9, 2026.
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FY2025 · Filed Mar 9, 2026
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Report of Independent Registered Public Accounting Firm
To the Shareholders and the Board of Directors NET Power Inc.:
Opinion on the Consolidated Financial Statements
We have audited the accompanying consolidated balance sheet of NET Power Inc. and subsidiaries (the Company) as of December 31, 2025, the related consolidated statements of operations and comprehensive loss, shareholders’ equity and mezzanine shareholders’ equity, and cash flows for the year ended December 31, 2025, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025, and the results of its operations and its cash flows for the year ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.
Basis of Opinion
These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audit provides a reasonable basis for our opinion.
/s/KPMG LLP
We have served as the Company’s auditor since 2025.
Houston, Texas
March 9, 2026
Report of Independent Registered Public Accounting Firm
Board of Directors and Shareholders
Opinion on the financial statements
We have audited the accompanying consolidated balance sheet of NET Power Inc. (a Delaware corporation) and subsidiaries (the “Company”) as of December 31, 2024, the related consolidated statements of operations and comprehensive loss, shareholders’ equity and mezzanine shareholders’ equity, and cash flows for the year ended December 31, 2024, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024, and the results of its operations and its cash flows for the year ended December 31, 2024, in conformity with accounting principles generally accepted in the United States of America.
Basis for opinion
These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
/s/GRANT THORNTON LLP
We have served as the Company’s auditor from 2021 to 2025.
Raleigh, North Carolina
March 10, 2025
Consolidated Balance Sheets
In thousands, except par value
| December 31, | December 31, | |
|---|---|---|
| 2025 | 2024 | |
| ASSETS | ||
| Current assets | ||
| Cash and cash equivalents | $199,430 | $329,230 |
| Short-term investments | — | 100,000 |
| Investments in securities, available-for-sale | 138,462 | 78,344 |
| Interest receivable | 1,376 | 3,682 |
| Prepaid expenses and other current assets | 4,496 | 1,774 |
| Total current assets | 343,764 | 513,030 |
| Long-term assets | ||
| Restricted cash | 2,427 | 2,446 |
| Investments in securities, available-for-sale | 38,242 | 22,628 |
| Intangible assets, net | 181,572 | 1,241,343 |
| Goodwill | — | 359,847 |
| Property, plant, and equipment, net | 32,758 | 151,470 |
| Operating lease right-of-use assets | 551 | 2,699 |
| Other long-term assets | 387 | 652 |
| Total assets | $599,701 | $2,294,115 |
| LIABILITIES, MEZZANINE SHAREHOLDERS' EQUITY, AND SHAREHOLDERS' EQUITY | ||
| Current liabilities | ||
| Accounts payable | $1,437 | $3,092 |
| Accrued liabilities | 7,565 | 13,619 |
| Due to related parties | 37,262 | 325 |
| Operating lease liabilities, current portion | 1,074 | 683 |
| Finance lease liabilities, current portion | 127 | 187 |
| Total current liabilities | 47,465 | 17,906 |
| Earnout Shares liability | — | 1,958 |
| Warrant liability | 10,850 | 81,283 |
| Asset retirement obligation | 3,597 | 3,265 |
| Non-current operating lease liabilities | 2,584 | 2,125 |
| Non-current finance lease liabilities | — | 110 |
| Tax Receivable Agreement liability | — | 20,974 |
| Deferred taxes | — | 4,306 |
| Total liabilities | 64,496 | 131,927 |
| Commitments and contingencies (Note 14) | ||
Consolidated Balance Sheets (Continued)
In thousands, except par value
| December 31, | December 31, | |
|---|---|---|
| 2025 | 2024 | |
| Mezzanine shareholders' equity | ||
| Redeemable non-controlling interests in subsidiary | 331,301 | 1,506,584 |
| Shareholders' equity | ||
| Preferred Stock, $.0001 par value; 1,000 shares authorized; no shares issued or outstanding as of December 31, 2025 and December 31, 2024 | — | — |
| Class A Common Stock, $.0001 par value; 520,000 shares authorized; 83,980 shares issued and outstanding as of December 31, 2025 and 76,760 shares issued and outstanding as of December 31, 2024 | 8 | 8 |
| Class B Common Stock, $.0001 par value; 310,000 shares authorized; 138,730 shares issued and outstanding as of December 31, 2025 and 139,691 shares issued and outstanding as of December 31, 2024 | 14 | 14 |
| Additional paid-in capital | 898,425 | 771,594 |
| Accumulated other comprehensive loss | 129 | 32 |
| Accumulated deficit | (694,672) | (116,044) |
| Total shareholders' equity | 203,904 | 655,604 |
| Total liabilities, mezzanine shareholders' equity, and shareholders' equity | $599,701 | $2,294,115 |
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