Mining industry sectors o Batubara Bukit Asam
o Aneka Tambang
o Kaltim Prima Coal
o Vale Indonesia
o Eramet Indonesia
o Adaro
o Arutmin
o Inalum
Contractor sectors
o Tripatra Engineering & Constructors
o Guna Nusa Fabricators
o McDermott Indonesia
o Bredero Shaw Indonesia
o Nippon Steel Indonesia
o Rekayasa Industri
o Wijaya Karya
o Hutama Karya
o Krakatau Steel Group Industries
o McConnell Dowell Indonesia
Power Plant sectors
o PLN
o Indonesia Power
Food Industry sectors
o Nestle Indonesia