As of the end of December 2024, Indonesia’s coal reserves have reached 31.96 billion tons, according to the Ministry of Energy and Mineral Resources (ESDM). This figure is based on updated data from 1,656 mining sites across 23 provinces, collected through reports from permit holders (PKP2B, IUPK, IUP) and field surveys by the PSDMBP. The reserves consist of 14.42 billion tons of estimated coal and 17.54 billion tons of proven reserves, with an additional 97.96 billion tons of coal resources not yet classified as reserves.
The classification follows national and international standards (SNI 5015-2019, ASTM, UN-ECE) and considers both geological data and coal calorific value. Most of Indonesia’s coal resources are low-calorie (≤ 4,200 kcal/kg), totaling 67.33 billion tons, with the remainder made up of medium and high-calorie coal. ESDM emphasized that this data will guide national energy policy to ensure long-term energy security amid the global energy transition.
