Financial Results Presentation

1 Scalable Core Business: Secured, long-term contracts... Delta Dunia Contracts Orderbook No Indonesia Customers Kalimantan 1 Adaro (Paringin)2 Years of Relationship 16 years Existing Contract Period 2 Adaro (Tutupan) 16 years 2009-20221 2021-2025 North Kalimantan 3 Angsana Jaya Energi (AJE) 3 years 5 & 6 4 - Bayan Indonesia Pratama (IPR)4 15 years East Kalimantan 5 Berau Coal (Binungan)² 22 years West Kalimantan Pontianak 4 Samarinda Balikpapan 6 Berau Coal (Lati)² 22 years 9 10 1&2 Central Kalimantan South Kalimantan 7 - Geo Sungai Danau Jaya (SDJ)1 5 years 8 - Geo Tanah Bumbu Resources (TBR) 1 5 years 9 Banjarmasin 3, 7, 8 10 10 RAIN - Insani Baraperkasa (IBP) 2 years Tadjahan Antang Mineral (TAM) 5 years 2018-20217 2018-2031 2003-20251 2012-20251 2015-20231 2018-20241 2018-2025 2015-2025 Contribution to BUMA Order book volume (%) Others, 16.1% Queensland Government, 1.3% Berau, 24.3% Stanwell, 3.8% US$7.5bn Queensland No Australia Customers Years of Relationship Existing Contract Period BMA, 5.4% 1 BHP Billiton and Mitsubishi Alliance (Blackwater) 10 years 2022 - 2026 Adaro, 11.1% Bayan, 38.0% BHP Billiton and Mitsubishi Alliance 2 Goonyella 2 14 years 2020 20226 (Goonyella) Blackwater 1 Millmerran Power Management 3 21 years 2019-2024 (Commodore) Meandu 4 4 Stanwell Corp (Meandu) 9 years 2020-2025 5 Commodore 3 Bowen Coking Coal (Meandu) New 2022-20258 1) Life of mine contract 2) CCoW licensed 3) Work completed in September 2020 4) In 1Q21, signed an extension and expansion contract with Bayan to 2031. Bayan relationship started in 2003 but the Group did not work continuously at the Bayan mine sites 5) Currently BUMA is not operational in this mine 6) Option to extend to 2024 7) Term sheet has been signed and extended to 2025 8) Option to extend by I year - STRICTLY CONFIDENTIAL - 19

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