Name

Jurisdiction of Organization

ProFrac Holdings, LLC

Texas

ProFrac Holdings II, LLC

Texas

ProFrac Services, LLC

Texas

ProFrac Manufacturing LLC

Texas

Alpine Silica, LLC

Texas

BEST Pump and Flow, LLC

Texas

FTS International, Inc.

Delaware

FTS International Services, LLC

Texas

FTS International Manufacturing, LLC

Texas

EKU Power Drives GmbH

Germany

EKU Power Drives Inc.

Delaware

ProFrac Transportation, LLC

Texas

AG PSC Funding LLC

Delaware

REV Energy Services, LLC

Colorado

REV Energy Holdings, LLC

Colorado

Alpine Monahans, LLC

Delaware

Alpine Monahans II, LLC

Delaware

Monarch Silica, LLC

Texas

Sunny Point Aggregate, LLC

Louisiana

Performance Proppants International, LLC

Louisiana

Performance Proppants, LLC

Texas

Red River Land Holdings, LLC

Louisiana

Performance Royalty, LLC

Louisiana

U.S. Well Services Holdings, LLC

Delaware

USWS Holding, LLC

Delaware

U.S. Well Services, LLC

Delaware

USWS Fleet 10, LLC

Delaware

USWS Fleet 11, LLC

Delaware

Producers Service Holdings LLC

Delaware

Producers Service Company – West, LLC

Delaware

Producers Service I, LLC

Delaware

Producers Service Company, LLC

Delaware