Subsidiary PT. MitraDamaiPerkasa. operates in the nickel mining sector and has a nickel mining concession covering 4,998 hectares with an estimated nickel reserve deposit of 150 million metric tons located in the administrative area of Keura Village, Bahodopi District, Morowali Regency, Central Sulawesi Province
Subsidiary PT. Halka Bintang TImur Engaged in the sea transportation business by operating Tug & Barge to transport nickel ore and coal commodities
Subsidiary PT. Halka Bangkit Perkasa Engaged in the Fuel Industry Suppliers . and using transportation tank trucks and oil barges
Subsidiary PT. Halka Persada Nusantara Engaged in the operates in the nickel ore smelting industry and manages a special integrated industrial area covering an area of 600 hectares