Commercial Metals Company Results Presentation Deck

Q3 North America Performance Summary Units in 000's except per ton amounts Adjusted EBITDA Adjusted EBITDA per Ton of Finished Steel Shipped External Finished Steel Tons Shipped[¹] Adjusted EBITDA Margin Key Performance Drivers Q3 2023 vs Q3 2022 ● . . • Q3 '22 1,178 CMC Q4 '22 1,132 18.7% Q1 '23 1,086 18.5% Q2 '23 $322 $327 $348 $308 972 $379,355 $370,516 $377,956 $299,311 $402,175 20.8% 18.2% Increased downstream product margins over scrap - Up approximately $300 per ton y/y Full value chain profitability on sales of downstream products above long-term average Q3 '23 1,169 $344 20.2% Meaningful contribution to sequential EBITDA improvement from lower controllable costs per ton - Improved fixed cost leverage, lower per-unit costs for key consumables, lower cost burden related to major planned maintenance projects Contribution from Tensar ($13.6 million of EBITDA) Lower steel product margins over scrap cost negatively impacted sequential and y/y performance North America - Key Margins $ / ton 1,200 SP and DP Margin Over Scrap 1,000 800 600 400 200 0 808 Notes: [1] External Finished Steel Tons Shipped equal to shipments of Steel Products plus Downstream Products [2] Downstream Product Margin Over Scrap equals Average Selling Price minus cost of ferrous scrap utilized during the prior quarter [3] Steel Products Margin Over Scrap equals Average Selling Price minus Cost of ferrous scrap utilized [4] Weighted average finished steel margin over scrap equals weighted average selling price of steel products and downstream products minus cost of ferrous scrap utilized 638 322 Q3 '22 876 717 327 1,012 695 Q4 '22 Adjusted EBITDA per ton 348 1,093 639 308 Q4 '22 Q1 '23 Q2 '23 Adjusted EBITDA per Ton of Finished Steel Shipped Downstream Products Margin Over Scrap (1 Qtr Lag) [2²] Steel Products Margin Over Scrap [3] North America Indexed Margins and Controllable Costs Indexed - $ / ton of external finished steel shipped 125 120 115 110 105 100 95 90 Q3 '22 Q1 '23 Q2 '23 Wgt Avg Finished Steel Mgn Over Scrap [4] 1,106 595 344 Q3 '23 400 350 300 250 200 150 100 50 0 Adjusted EBITDA per ton Q3 '23 Controllable Costs Q3 FY23 Supplemental Slides June 22, 2023 13

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