Commercial Metals Company Results Presentation Deck

● ● ● Strategic Growth - Mill Projects Arizona 2 Status Operational startup underway Producing for commercial sale in Q4 2023 Initial ramp-up on rebar, before commissioning merchant Strategic Benefits Mill network optimization Extension of merchant bar footprint to West Coast On-site optimization with original AZ micro mill - Leverage shared infrastructure and staffing, improved production planning CMC ● ● ● ● Plant Highlights First micro mill in the world capable of both rebar and merchant bar production in a continuous process 500k tons of capacity, including 150k tons of merchant Outlook Expect EBITDA breakeven during Q1 FY 2024 Targeting FY 2024 production of approximately 400k tons Anticipated through-the-cycle annual EBITDA of $70M to $80M - Earnings at run-rate volumes should be above expected through-the-cycle levels within current market conditions CMC mills CMC recycling CMC fabrication ✓ CMC's mill projects are expected to provide significant network optimization opportunities New mill sites will enhance geographical reach and scale within key steel consuming markets ✓ Total incremental annual through-the-cycle EBITDA is expected in the range of $140 million to $160 million ✓ Project economics for both mills benefit from significant capital cost offsets: Arizona 2: sale of former California steelmaking site Steel West Virginia: upfront incentives from state and local agencies ● ● ● ● Steel West Virginia CMC STEEL G KLINOWA Status Expect groundbreaking this summer Strategic Benefits Network optimization across Eastern U.S. footprint - Improved logistics, production planning, enhanced customer service capabilities Plant Highlights Strategically located to serve dense Northeast and Mid-Atlantic markets, as well as the Midwest Outlook Expect startup in calendar 2025 Anticipated through-the-cycle annual EBITDA of $70M to $80M Q3 FY23 Supplemental Slides | June 22, 2023 5

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