Jakarta 12950. Phone: +62 21 525 4014. Fax: +62 21 525 4002. Email:
[email protected]. Tambang Batubara Bukit Asam (Bukit Asam), a state controlled company, is one of the largest coal mining companies in Indonesia. It has coal mines in South Sumatra, West Sumatra, and East Kalimantan.Web