1. 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

  1. Subsidiary PT. Halka Bintang TImur  Engaged in the sea transportation business by operating Tug & Barge to transport nickel ore and coal commodities

  1. Subsidiary PT. Halka Bangkit Perkasa  Engaged in the Fuel Industry Suppliers . and using transportation tank trucks and oil barges

  1. 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