Exhibit 99.1

 

ARGON HOLDCO LLC

08/12/2026

By: Blackstone Holdings II L.P., its sole member

 

By: Blackstone Holdings I/II GP L.L.C., its general partner

 

 

 

By: /s/ Victoria Portnoy

 

Name: Victoria Portnoy

 

Title: Managing Director - Assistant Secretary

 

 

 

Blackstone Holdings II L.P.

08/12/2026

By: Blackstone Holdings I/II GP L.L.C., its general partner

 

 

 

By: /s/ Victoria Portnoy

 

Name: Victoria Portnoy

 

Title: Managing Director - Assistant Secretary

 

 

 

Blackstone Holdings I/II GP L.L.C.

08/12/2026

 

 

By: /s/ Victoria Portnoy

 

Name: Victoria Portnoy

 

Title: Managing Director - Assistant Secretary

 

 

 

Blackstone Inc.

08/12/2026

 

 

By: /s/ Victoria Portnoy

 

Name: Victoria Portnoy

 

Title: Managing Director - Assistant Secretary

 

 

 

Blackstone Group Management L.L.C.

08/12/2026

 

 

By: /s/ Victoria Portnoy

 

Name: Victoria Portnoy

 

Title: Managing Director - Assistant Secretary

 

 

 

/s/ Stephen A. Schwarzman

08/12/2026

Stephen A. Schwarzman