
2019 Minerals Yearbook
state-owned PT aneka Tambang Tbk (PT antam) produced bauxite, ferronickel, gold, nickel, and silver. other major state-owned companies included PT Bumi Resources (coal), PT indonesia asahan aluminium (PT inalum) (aluminum), PT Krakatau Steel (steel), PT Pertamina (natural gas and refined petroleum), PT Tambang Batubara Bukit asam Tbk (PT Bukit