On March 4, 2024, Donna Anderson, Vice President and Chief Accounting Officer of Cactus, Inc. (Company), notified the company of her intention to resign from the company effective March 15, 2024. On March 8, 2024, in connection with Ms. Anderson?s resignation, Alan Keifer, who is currently Interim Chief Financial Officer and Principal Financial Officer of the Company, was appointed as the Company?s Principal Accounting Officer effective March 15, 2024. Mr. Keifer will continue in his role as Interim Chief Financial Officer and Principal Financial Officer.