Commercial Metals Company Results Presentation Deck

REBAR tCO2e per MT of steel ZERO™ Scopes 1&2 Greenhouse Gas Emissions (GHG) Intensity 2.2 Clear Sustainability Leader CMC plays a key role in the circular steel economy, turning society's metallic waste into the steel that forms the backbone of modern life Integrated Global Average Average 1.8 Scopes 1-3 GHG Emissions Intensity 1.91 CMC WIRE ZERO 0.67 1.0 U.S. Average Energy Intensity 21.31 0.413 CMC MERCHANT Progress on 2030 Goals (2019 baseline[¹]) Reduce our Scope 1 and 2 GHG emissions intensity by 20% Increase our renewable energy usage by 12% points 69% Of goal Water Withdrawal Intensity 28.60 LLLL 3.86 CMC 1.13 Global Industry 53% Of goal ZERO™ Global Industry CMC Global Industry [1] Represents progress on environmental goals as of fiscal year 2022, compared to fiscal year 2019 Note: GHG emissions statistics for CMC include only steel mill operations, which represents over 95% of CMC's emissions footprint Sources: CMC 2022 Sustainability Report; virgin material content for industry based on data from Bureau of International Recycling; all other industry data sourced from the World Steel Association CMC 69% Virgin Materials Used in Steelmaking Reduce our energy consumption intensity by Global Industry 2% CMC POST ZERO™ 5% 82% Of goal Reduce our water withdrawal intensity by 8% INTEGRI 22% Of goal ONE CMC SAFETY ACCOUNTABILITY FOR OUR ACTIONS RESPECT FOR OUR ENVIRONMENT ACTING WITH INTEGRITY Q3 FY23 Supplemental Slides | June 22, 2023 19

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