Investor Presentaiton

Corporate Strategy - Sources of Fund CORE BUSINESS US$m, unless stated' FY18³ FY19 FY20 FY21 IH22 OB Removal (MBCM) 393 380 282 326 260 Revenue 892 882 602 911 723 EBITDA 298 236 164 234 164 % EBITDA margin³ 36% 29% 29% 28% 26% EBIT 164 88 20 82 51 % EBIT margin³ 20% 11% 4% 10% 8% ■ BUMA Indonesia is second largest mining contractor, with a ~15% market share ■ BUMA Indonesia averaged ~350MBCM for the last 4 years Established, long-term contract base, with current orderbook of ~US$7.5bn ■ BUMA has actively expanded its contract base, targeting first quartile mining operations - SYNERGIES_ Dominant positions with, Adaro Energy, Bayan Resour ■ 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 Fleet Management Systems Operational Excellence and Safety Systems Strong and stable cashflows will drive diversification 123 1. DOID Consolidated financials (BUMA is currently the only operating subsidiary). 1H22 Financials is fully consolidated with BUMA Australia. 2. 3. Margins are based on net revenue excluding fuel. - STRICTLY CONFIDENTIAL - Delta Dunia 7

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