On February 7, 2024, James G. Berges informed Core & Main, Inc. of his decision to resign from his position as Chair of the board of directors of the Company, various committees of the Board and as a member of the Board, effective immediately. Further, on February 7, 2024, Ian A. Rorick, Nathan K. Sleeper and Jonathan L. Zrebiec each informed the Company of their decision to resign from their positions as members of the Board, effective immediately. Messrs.

Berges, Rorick, Sleeper and Zrebiec are affiliated with the private equity firm Clayton, Dubilier & Rice, LLC, and have resigned as members of the Board in connection with the successful exit of CD&R's investment in the Company, which was completed on January 25, 2024. Appointment of Stephen O. LeClair as Chairman of the Board and James G. Castellano as Lead Independent Director. On February 7, 2024, the Board, upon the recommendation of the Nominating and Governance Committee of the Board, appointed Stephen O. LeClair to replace James G. Berges as Chair of the Board.

Mr. LeClair is and will continue to be the Chief Executive Officer (CEO") of the Company and has served as CEO and a member of the Board since 2021. In addition, the Board, upon the recommendation of the Nominating and Governance Committee of the Board, appointed James G. Castellano to the newly created position of Lead Independent Director of the Board. Mr. Castellano, who joined the Board in 2021, will continue to serve as Chair of the Board's Audit Committee.