- Business
- PT Alamtri Minerals Indonesia Tbk (IDX:ADMR) engages in metallurgical coal mining and mineral processing in Indonesia as a subsidiary of PT Alamtri Resources Indonesia Tbk. The company operates through its subsidiaries in the Mining segment, holding five Coal Contracts of Work covering 146,579 hectares in East Kalimantan and Central Kalimantan for premium metallurgical coal resources totaling 982.9 million tonnes and reserves of 177.2 million tonnes as of December 2024; PT Lahai Coal and PT Maruwai Coal produce Enviromet-branded coking coal noted for low ash, low phosphorus, and high vitrinite content ideal for steelmaking blends; the Metal Processing segment develops aluminum smelting via PT Kalimantan Aluminium Industry with an initial 500,000-tonne annual capacity expandable to 1.5 million tonnes at Kalimantan Industrial Park Indonesia in North Kalimantan; and the Other Services segment provides management consulting. Founded in 2007 as PT Jasapower Indonesia and headquartered at Cyber 2 Tower, 34th Floor, Jl. H.R. Rasuna Said Blok X-5 No.13, Setiabudi, South Jakarta, the company listed on the Indonesia Stock Exchange in January 2022 following a highly oversubscribed IPO and has pursued downstream integration into Indonesia's green economy. Recent developments include a June 2025 capital injection of IDR 947.49 billion by subsidiary PT Alamtri Indo Aluminium into PT Kalimantan Aluminium Industry to advance aluminum smelter construction, now in final stages with potroom equipment and infrastructure installation targeting startup by end-2025; acquisitions in 2023 of PT Alam Tri Cakra Indonesia (90.84% stake) and PT Batuan Anugerah Semesta (100% stake) for organizational efficiency and future growth, plus 2024 acquisition of PT Bumi Alam Seraya for integrated limestone mining; and a June 2025 affiliated-party share purchase in PT Cita Mineral Investama to enhance its investment portfolio. [image:1 from company structure page]