Founded in 2001, PT Truba Alam Manunggal Engineering Tbk, through its subsidiaries, engages in the design, engineering, procurement and construction of buildings, infrastructure and plants in Indonesia. It provides engineering services as a support to power plant construction activities and industrial factories; supplies equipment and machinery necessary for the project construction; and construction services for mechanical and electrical construction of power plants, industrial factories and public facilities. The company also supplies electricity to the State Electricity Firm and private sectors. It is also involved in coal mining and trading activities. In addition, it is engaged in the agency, agriculture, transportation, real estate, printing, technical designing, installation and construction consulting businesses. Further, PT Truba Alam Manunggal produces and markets chlorine, as well as markets chemical products.