GMS Results Presentation Deck

Strategic Growth Priorities Expand Share in Core Products Capitalize on existing fixed investments in locations & equipment where we are underpenetrated or below expected share ● The Gypsum Association, Steel Framing Industry Association and ceilings manufacturers all indicate that we continue to gain share GMS GYPSUM MANAGEMENT & SUPPLY, INC. Grow Complementary Products DEWALT HEAVY DUTY CONSTRUCTION LASERS LASERES PARA TRABAJO PESADO DE CONSTRUCCIÓN ● DEWALT ● DEWALT SP DWOB3K KEY FEATURE Self Leveling Spot S acts Down B Grow Complementary Product opportunities to diversify and profitably expand our product offerings grated Magnetic Locking Penutur Q224 was the 14th consecutive quarter of year-over-year growth for our Complementary Products Focus areas Tools & Fasteners, EIFS/Stucco and Insulation continue to outperform the broader category Platform Expansion ● Canada SW MW NE SE Expand the platform through accretive acquisition and greenfield opportunities, balanced with debt reduction priorities During Q224, we completed the acquisition of AMW Construction Supply, a highly respected distributor of Tools & Fasteners and other Complementary Products in the Phoenix, AZ market Opened 2 greenfield locations and 1 AMES store during the quarter Drive Improved Productivity & Profitability Leverage our scale and employ technology and best practices to deliver a best-in-class customer experience with an aim to further profit improvement ● Efforts to improve productivity and profitability and to reduce complexity costs helped drive favorable SG&A costs for the quarter 4

View entire presentation