Signatures and Joint Filer Information

Name of Joint Filer: American Securities LLC

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

AMERICAN SECURITIES LLC

 

 

/s/ Michael G. Fisch

Name:

Michael G. Fisch

Title:

Chief Executive Officer

Dated: February 11, 2026

1


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP Endeavor Investco LP

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP Endeavor Investco LP

 

 

 

/s/ Eric L. Schondorf

Name:

Eric L. Schondorf

Title:

Vice President and Secretary

Dated: February 11, 2026

2


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP SOLV Aggregator L.P.

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP SOLV Aggregator L.P.

 

 

 

/s/ Eric L. Schondorf

Name:

Eric L. Schondorf

Title:

Vice President and Secretary

Dated: February 11, 2026

3


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP VIII Alternative Investments Solstice, L.P.

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP VIII Alternative Investments Solstice, L.P.

 

BY: American Securities Associates VIII, LLC, its general partner

 

/s/ Michael G. Fisch

Name:

Michael G. Fisch

Title:

President

Dated: February 11, 2026

4


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: American Securities Partners VIII(B), L.P.

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

American Securities Partners VIII(B), L.P.

 

By: American Securities Associates VIII, LLC, its general partner

 

 

/s/ Michael G. Fisch

Name:

Michael G. Fisch

Title:

President

Dated: February 11, 2026

5


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP VIII Alternative Investments L.P.

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP VIII Alternative Investments L.P.

 

By: American Securities Associates VIII, LLC, its general partner

 

 

/s/ Michael G. Fisch

Name:

Michael G. Fisch

Title:

President

Dated: February 11, 2026

6


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: AS/ASP VIII Co-Investor LLC

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

AS/ASP VIII Co-Investor LLC

 

By: ASP Manager Corp., its MANAGER

 

 

/s/ Eric L. Schondorf

Name:

Eric L. Schondorf

Title:

Vice President and Secretary

Dated: February 11, 2026

7


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: American Securities Associates VIII, LLC

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

American Securities Associates VIII, LLC

 

 

/s/ Michael G. Fisch

Name:

Michael G. Fisch

Title:

President

Dated: February 11, 2026

8


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP VIII SOLV Holdings LP

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP VIII SOLV Holdings LP

 

By: ASP Manager Corp., its GENERAL PARTNER

 

 

/s/ Eric L. Schondorf

Name:

Eric L. Schondorf

Title:

Vice President and Secretary

Dated: February 11, 2026

9


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP VIII CSE Holdings LP

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP VIII CSE Holdings LP

 

By: ASP Manager Corp., its GENERAL PARTNER

 

 

/s/ Eric L. Schondorf

Name:

Eric L. Schondorf

Title:

Vice President and Secretary

Dated: February 11, 2026

10


 

Signatures and Joint Filer Information
(continued)

Name of Joint Filer: ASP Manager Corp.

Address of Joint Filer: 590 Madison Avenue, 38th Floor
New York NY 10022

Relationship of Joint Filer to Issuer: 10% Owner

Issuer Name and Ticker or Trading Symbol: SOLV Energy, Inc. [MWH]

Date of Event Requiring Statement

(Month/Day/Year): 02/11/2026

Designated Filer: American Securities LLC

Signature:

ASP Manager Corp.

 

 

/s/ Eric L. Schondorf

Name:

Eric L. Schondorf

Title:

Vice President and Secretary

Dated: February 11, 2026

11