Coal mining contractors and their operations. Free
01/06/2010#0183;#32;Currently there are 116 companies operating as mining contractors in Indonesia. They offer heir services to 60 coal producers. Among the main contractors are PT. Darma Henwa, Tbk, PT. Pama Persada Nusantara, PT. Thiess Contractors Indonesia, and PT. Bukit makmur Utama Mandiri. Profiles of major Coal Mining Contractors PT. Dharma Henwa, Tbk