Investor Relations

Austin Harbour, CFO
333 Shops Blvd., Suite 301
Willow Park, TX 76087
T: 254-776-3722
investors@profrac.com

Transfer Agent

Equiniti Trust Company, LLC
48 Wall Street, Floor 23
New York, NY 10005
T: (800) 937-5449
helpAST@equiniti.com

Auditor

Grant Thornton LLP
1717 Main Street
Suite 1800
Dallas, TX 75201
T: 214-561-2300