Investor Presentaiton

Utilities Telecommunications 2.5 «H») Water 2.0 Power and Gas 1.5 1.0 0.5 Downer 0.0 WIH profile¹ ($bn) I.... FY24 FY25 FY26 FY27 FY28 FY29+ $4.5bn total 85% government² Top 5 Contracts Remaining 1. Sydney Water until 2030 (Confluence Water JV) 2. AusNet (power) until 2024 (plus two 3-year extensions) 3. City of Gold Coast (water) until 2032 4. Logan City Council until 2025 (plus two 2-year extensions) 5. Melbourne Water until 2028 Revenue² $m EBITA² $m EBITA % margin² 1,200 1,018.4 1,136.2 1,122.0 1,011.9 1,000 800 600 400 200 0 5555555 45 40.5 5% 4.0% 4% 35 3% 25 19.4 1.9% 2% 15 1% 0% (5) (15) -1% (0.5%) (0.5%) (5.2) (5.1) -2% 1H22 2H22 1H23 2H23 1H22 2H22 1H23 2H23 1H22 2H22 1H23 2H23 1 WIH Government includes direct Government and Government related projects 2 Comparative periods have been restated to reflect the impact of historical misreporting of revenue and contract assets in one of Downer's maintenance contracts in its Australian Utilities business, and to reflect the change in operating segments. Refer to slide 33 for reconciliation Downer FY23 Results | 27

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