Thiess Contractors Indonesia - Wikipedia
History. Thiess originally commenced operations in Indonesia in 1972 when it acquired a 50% in Petrosea. After Thiess was taken over by CSR in 1980, the overseas operations including Indonesia operations were sold to Leighton Contractors.. Thiess re-entered the Indoneasian market when Thiess Contractors Indonesia was established in 1988 and, working in a joint venture with PT Mintekindo .