David Alister Tonkin

PT Borneo Lumbung Energi & Metal Tbk engages in the mining and production of hard coking coal. The firm operates through the International and Domestic geographical segments. Its other business activities include the trading, construction, transportation, and provision of mining and technical engineering consultation and other services. The company was founded by Samin Tan on September 11, 1992 and is headquartered in Jakarta, Indonesia.

Part of PT Borneo Lumbung Energi & Metal, PT Asmin Koalindo Tuhup provides construction services. The company is based in Balikpapan, Indonesia.

PT Berau Coal Energy Tbk operates as a holding company, which engages in the coal mining business. Its mining activities include exploration, development, transportation, marketing, and trading of coal. The firm produces and sells thermal coal products under the brand names of Mahoni, Mahoni-B, Agathis, Sungkai, and Ebony. The company was founded on September 7, 2005 and is headquartered in Berau, Indonesia.

Part of PT Berau Coal Energy, PT Berau Coal is a company that provides mining and extraction of coal. The company is based in Berau, Indonesia. The CEO of the Indonesian company is Fuganto Widjaja.