Bukit Asam

==Tambang Air Laya ==
===1923–1940===
==Perusahaan Negara Tambang Arang Bukit Asam==
===1950–1981===
==Bukit Asam==
===1981–2019===
=== 2019–present ===
Category:Mining Industry Indonesia Group
Category:Mining Industries in Indonesia
Category:1981