Whole Life Value Optimization of Boral Quarries

Financials We are improving on all key financial metrics of volumes, price and costs Volumes Volumes trend for year to date up on FY22 ☐ Rate of external volume growth slowing in Q4FY23 against previous three quarters ☐ ☐ Price ☐ Cost May run rate slower after shorter April month compared to Q3FY23 nationally on back of residential sector. Recycling, Quarries and Asphalt holding up well on back of projects Price traction nationally across all product lines and regions against previous year ■ In some regions, price escalation converting to price realization ☐ Price realization improving on back of tapering of fixed price contracts ☐ ■ Significant work on customer service to underpin price traction in future Operating model in place and related cost work in full swing. Discretionary costs tightly managed Lot more work to do especially in freight and cartage costs, mobile and fixed assets care, fixed assets optimization (OEE improvement across all assets) Work on unprofitable downstream assets continues Outlook statement We have seen price traction across all regions and all product lines. Our EBIT run rate in 2HFY23 is ahead of 1HFY23 and is expected to remain so for the full year. Progress 0% 100% A BORAL Building something great 16

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