ProFrac Holding Corp. SCHEDULE 13D/A

JOINT FILING AGREEMENT

POWER OF ATTORNEY - DAN WILKS

POWER OF ATTORNEY - MATTHEW D. WILKS

POWER OF ATTORNEY - JO ANN WILKS

POWER OF ATTORNEY - FARRIS WILKS

POWER OF ATTORNEY - FARRIS & JO ANN WILKS 2022 FAMILY TRUST

POWER OF ATTORNEY - THRC HOLDINGS, LP

POWER OF ATTONEY - THRC MANAGEMENT, LLC

POWER OF ATTORNEY - FARJO HOLDINGS, LP

POWER OF ATTORNEY - FARJO MANAGEMENT, LLC

POWER OF ATTORNEY - HEAVENLY FATHER'S FOUNDATION

SCHEDULE I