Delta Dunia Corporate Strategy and Highlights

Corporate Strategy CORE BUSINESS US$m, unless stated' FY18 FY19 FY20 FY21 IQ222 ◉ OB Removal (MBCM) 393 380 282 326 124 ■ Revenue 892 882 602 911 332 EBITDA 298 236 164 234 70 % EBITDA margin³ 36% 29% 29% 28% 24% EBIT 164 88 20 82 13 % EBIT margin³ 20% 11% 4% 10% 5% BUMA is Indonesia's second largest mining contractor, with a ~15% market share BUMA averaged ~350MBCM for the last 4 years Established, long-term contract base, with current orderbook of ~US$6.5bn BUMA has actively expanded its contract base, targeting first quartile mining operations Dominant positions with, Adaro Energy, Bayan Resources and Berau Coal Energy " The completion of the Downer Mining East (BUMA Australia) acquisition expands our core business another key mining jurisdiction Adds 160MBCM capacity to our core business Robust contract base with BHP- Mitsubishi Alliance (BMA) Blackwater- Goonyella coking coal mines & 2 mine- mouth powerplant for Queensland government Highly experienced management team exploring substantial growth pipelines Strong and stable cashflows will drive diversification SYNERGIES Fleet Management Systems Operational Excellence and Safety Systems DOID Consolidated financials (BUMA is currently the only operating subsidiary). 123 1. 2. 1Q22 Financials has fully consolidated with BUMA Australia. 3. Margins are based on net revenue excluding fuel. - STRICTLY CONFIDENTIAL - Delta Dunia ADJACENT GROWTH PILLARS DIVERSIFY: COMMODITIES Build our mining services capabilities, as a mine owner and operator Strategic acquisitions to expand DOID's portfolio to include other commodities (initially copper) DIVERSIFY: GEOGRAPHY ◉ ☐ The BUMA Australia acquisition is a first step in expanding our core business into key global mining markets DOID is seeking to leverage our long-standing relationships to build a broad global client base ADVANTAGE: TECHNOLOGY ☐ " Monetising BUMA's industry-leading capabilities in Predictive and Digital Maintenance, Mine Plan Optimization and Safety Analytics - Build an Operation Excellence Technology Division to spin-off developed technology The application of this technology to acquisitions (including BUMA Australia) add substantial value ADVANTAGE: INFRASTRUCTURE AND RENEWABLES Leveraging our infrastructure capability to capture Indonesia's renewable business growth and opportunities ■ Initial investments in SUN SG, which is expanding its renewable business throughout South-East Asia and Australia 7

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