GMS Results Presentation Deck

Q2 2024 Net Sales ($ in millions) Fiscal Q2 (Unaudited) Organic (1) Acquisitions Fx Impact Total Net Sales Wallboard Ceilings Steel Framing Complementary Products Total Net Sales GMS GYPSUM MANAGEMENT & SUPPLY, INC. FY24 1,386.5 38.3 (3.8) 1,420.9 FY23 $ 1,431.0 $ 1,431.0 585.2 $ 584.6 175.3 159.6 232.1 278.2 428.3 408.7 1,420.9 $1,431.0 Variance Reported (0.7%) 0.1% 9.9% (16.6%) 4.8% (0.7%) Organic (1) (3.1%) (0.3%) 7.2% (17.4%) (1.4%) (3.1%) 1. Organic net sales growth calculation excludes net sales of acquired businesses until first anniversary of acquisition date and impact of foreign currency translation. 13

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