
Filing Information This section details the administrative information for the Form 8-K filing, including registrant details, event date, and registered securities General Report Details This section outlines the registrant's administrative information, event date, emerging growth company status, and registered securities - NET POWER INC., a Delaware corporation, is the registrant2 - The earliest event reported occurred on August 11, 20252 Securities Registered | Title of each class | Trading Symbol(s) | Name of each exchange on which registered | | :--- | :--- | :--- | | Class A Common Stock, par value $0.0001 per share | NPWR | The New York Stock Exchange | | Warrants, each exercisable for one share of Class A Common Stock at a price of $11.50 | NPWR WS | The New York Stock Exchange | - The registrant is identified as an emerging growth company4 Item 2.02 Results of Operations and Financial Condition This item reports Net Power Inc.'s financial results for the quarter ended June 30, 2025, via a press release Announcement of Financial Results Net Power Inc. announced its Q2 2025 financial results via a press release, furnished as Exhibit 99.1, for informational purposes - Net Power Inc. released financial results for the quarter ended June 30, 2025, on August 11, 20255 - The press release is furnished as Exhibit 99.1 and incorporated by reference5 - Information in Item 2.02 and Exhibit 99.1 is furnished, not filed, under Section 18 of the Securities Exchange Act of 19346 Item 9.01 Financial Statements and Exhibits This item lists the exhibits accompanying the Form 8-K filing, including the press release and interactive data file Exhibits Filed This section enumerates the exhibits accompanying the Form 8-K, including the financial results press release and interactive data file Exhibits | Exhibit Number | Description | | :--- | :--- | | 99.1 | Press release dated August 11, 2025 | | 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) | Signature This item confirms the official signing of the report by the Chief Executive Officer Report Signatories The report was officially signed by Daniel J. Rice IV, CEO of Net Power Inc., on August 11, 2025 - The report was signed by Daniel J. Rice IV, Chief Executive Officer of NET POWER INC12 - The report was dated and signed on August 11, 202511