PT Dian Swastatika Sentosa Tbk engages in the energy and infrastructure business. The company is headquartered in Jakarta, Dki Jakarta and currently employs 2,013 full-time employees. The company went IPO on 2009-12-10. The Company’s operating segment is presented based on their business, namely supply of steam and electricity, fertilizer and chemicals trading, rent, and coal mining and trading. The Power and Steam Generation business operates four captive power plants with a total capacity of 300 megawatts, located in Serang one unit, Tangerang one unit, and Karawang two units. The firm carries out its business activities in thermal coal mining and trading through PT Golden Energy Mines Tbk (GEMS) and its subsidiaries, as well as PT DSSE Energi Mas Utama and its subsidiaries. The firm manages its technology business through PT DSST Mas Gemilang, among others, PT Innovate Mas Indonesia, PT Eka Mas Republik, and Golden Multimedia Holdings Pte. Ltd. The firm carries out a fertilizer and chemical trading business through PT Rolimex Kimia Nusamas.