Form: SCHEDULE 13D/A

General Statement of Acquisition of Beneficial Ownership

August 1, 2025

 

Exhibit 99.1

 

Joint Filing Agreement

 

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including amendments thereto) with respect to the Class A Common Stock, par value $0.0001 per share, of Net Power Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

 

Dated July 30, 2025

 

  8 RIVERS CAPITAL, LLC
     
  By: /s/ Min Lee
    Min Lee, Acting General Counsel
     
  NPEH, LLC
     
  By: /s/ Min Lee
    Min Lee, Acting General Counsel
     
  DAMIAN BEAUCHAMP
     
  By: /s/ Damian Beauchamp
    Damian Beauchamp
     
  CYNDA BEAUCHAMP
     
  By: /s/ Cynda Beauchamp
    Cynda Beauchamp
     
  8RCH, LLC
   
  By: /s/ Cynda Beauchamp
    Cynda Beauchamp, President & Secretary
     
  TILLANDSIA, INC.
   
  By: /s/ Kiseon Park
    Kiseon Park, President
     
  ARECA, INC.
   
  By: /s/ Jae Hun Jang
    Jae Hun Jang, President
     
  CHAMAEDOREA, INC.
   
  By: /s/ Munhyuk Jang
    Munhyuk Jang, Treasurer
     
  SK INC.
   
  By: /s/ Munhyuk Jang
    Munhyuk Jang, Head of Corporate Management Department