PT Thiess Contractors Indonesia is a subsidiary of Thiess.
History Thiess commenced operations in Indonesia in 1972 when it acquired a 50% in Petrosea.Thiess moves into S-E Asian contracting Canberra Times 26 April 1972 page 17 After Thiess was taken over by CSR in 1980, the overseas operations including Indonesia operations were sold to Leighton Contractors.CSR Offer Accepted - Thiess directors give up fight Canberra Times 12 January 1980 page 16CSR searches for stable investment opportunity with stable investment Canberra Times 5 July 1984 page 19
Thiess re-entered the Indonesian market when Thiess Contractors Indonesia was established in 1988 and, working in a joint venture with PT Mintekindo Utama Into, started undertaking mining activities.Into the 1980s Thiess Its first major mining contract was awarded in March 1989 by BHP at Senakin Mine in East Kalimantan.
Ownership As at June 2025, Thiess held a 95% shareholding in Thiess Contractors Indonesia.
References
Further reading Priest, Joan (1997). The Thiess Story. Boolarong Press Raymond, Robert (1999). A Vision for Australia: The Snowy Mountain Scheme 1949-1999. Focus Publishing Pty Ltd King, Stephanie (1999). Leighton: 50 Years of Achievement 1949-1999. Technical Resources Pty Ltd