PT SMR Utama Tbk, through its subsidiaries, engages in the mining, exploitation, and production of coal properties in Indonesia. The company also provides equipment, manpower, and technical expertise for infrastructure and mining facilities, including drilling, blasting and disposal of land, and rental coal mining equipment. In addition, it engages in trading and investing activities, as well as offers agency, construction, engineering, and industrial bureau services. Further, it operates as a mining contractor. The company was formerly known as PT Dwi Satria Jaya and changed its name to PT SMR Utama Tbk in November 2010. The company was founded in 2003 and is headquartered in Jakarta, Indonesia. PT SMR Utama Tbk is a subsidiary of PT Trada Alam Minera Tbk.