[SMM Coal Flash] PTBA Plans to Reactivate Ombilin Mine, Targeting High-Calorie Coal Production
Indonesia’s state-owned coal miner PT Bukit Asam (PTBA) is preparing to reactivate the Ombilin coal mine in Sawahlunto, West Sumatra, which ceased operations in 2015. Recent exploration identified an additional 1.82 million tonnes of coal reserves, with an average calorific value above 6,500 kcal/kg and reaching 7,000 kcal/kg.
PTBA targets annual production of 300,000-500,000 tonnes, with the additional reserves expected to support operations for four to five years. Open-pit mining at Langkok Block is expected to begin in Q4 2026, while initial mining activities are targeted for early 2027. The company has also identified around 100 million tonnes of potential coal deposits beneath the urban area, although development remains challenging.