COAL RESERVES AND RESOURCES STATEMENT Tanah Bumbu Resources (TBR) Total area: 489.1ha Permit/tenure: IUP Operasi Produksi/ 10 January 2028 (extendable up to 10 years) Location: Angsana and Sungai Lohan sub districts of the Tanah Bumbu regency in the South Kalimantan Province of Indonesia Name of Asset/Country: TBR Coal Mining Concession/Indonesia Category Mineral Type Gross Attributable to License(1) Net Attributable to Issuer(4) Remarks Tonnes (Million) Grade Tonnes (Million) Grade Changes from previous update (%)(2) Reserves(5) Proved Coal 17.8 Sub-Bituminous Class C 17.8 Sub-Bituminous Class C -29% Change due to production Probable Coal 13.6 Sub-Bituminous Class C 13.6 Sub-Bituminous Class C -9% Change due to production Total Coal 31.4 Sub-Bituminous Class C 31.3 Sub-Bituminous Class C -21% Change due to production Resources(3)(5) Measured Coal 21.3 Sub-Bituminous Class C 21.3 Sub-Bituminous Class C -26% Change due to production Indicated Coal 19.5 Sub-Bituminous Class C 19.5 Sub-Bituminous Class C -8% Change due to production Inferred Coal 4.7 Sub-Bituminous Class C 4.7 Sub-Bituminous Class C 0% No change Total Coal 45.5 Sub-Bituminous Rank C 45.4 Sub-Bituminous Class C -17% Change due to production Summary of reserves and resources as at 31 December 2025 Name of Qualified Person: Keith Whitchurch Date: 31 December 2025 Professional Society Affiliation / Membership: BE(Hons) MEngSci, FAusIMM(CP), (CP)(Min), RPEQ, PERHAPI, CPI, IPU, ASEAN Eng, APEC Eng. Calorific value: 4,200 kcal/kg gar* Total sulfur: 0.28% (adb) Ash: 4.61% (adb) Notes: 1 License refers to PT Tanah Bumbu Resources Production Operation IUP. 2 Previous Coal Reserves and Coal Resources estimates were reported as of 31 December 2024. 3 Resources are inclusive of Reserves. 4 The results presented are rounded to reflect the accuracy of the estimates. Minor discrepancies are due to rounding and are not considered material by SMGC. 5 Resources and Reserves are reported in accordance with SMGC’s interpretation of the JORC Code 2012 Edition. * Selling basis 20
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