Commercial Metals Company Investor Presentation Deck

Clear Strategic Growth Plan CMC is targeting significant growth through a disciplined approach of 1) expanding in markets we know well; 2) growing with a customer base we know well; and 3) adding complementary solutions for applications we know well 1 July 2021 Third Polish rolling line Tensar. 1 April 2022 Tensar acquisition Meaningfully extends CMC's growth runway; creates a platform for further expansion • Under-penetrated markets provide significant growth upside • Highly complementary products used in early phase of construction CMC 2 November 2022 Kodiak Resources acquisition September 2022 Advanced Steel Recovery acquisition EDSCO TENDON SYSTEMS Broaden, deepen, and diversify CMC's market presence and value proposition to customers • Support core business through commercial and volume enhancement Provide meaningful commercial synergy opportunities March 2023 Tendon Systems acquisition 3 3 2 July 2023 EDSCO acquisition June 2023 Arizona 2 mill start-up First merchant bar-capable micro mill in the world • Replaces rebar production from higher- cost former Steel CA plant Further optimizes mill network and provides access to large West Coast MBQ market 4 ● 4 2025 Steel West Virginia mill start-up State-of-the-art micro mill to serve the Northeast, Mid-Atlantic, and Mid-Western markets Will complement CMC's existing operational footprint - significant benefits expected from enhanced production flexibility, customer service capabilities, and logistical efficiencies CMC: Investor Overview 7

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