Suradi

PT Brantas Abipraya (Persero) engages in the constructing public infrastructures such as dams, irrigations, airports, roads, bridges, tunnels, government buildings and electric power plants. Its projects include Bili-Bili Multipurpose Dam, Batubulan Dam, Sultan Mahmud Badarudin II Airport, Sepinggan Balikpapan Airport, Malala-Lakuan Road, Ake-Dodaga Bridge, Bili-Bili Irrigation, and Ministry of Public Works Building. The company was founded on November 12, 1980 and is headquartered in Jakarta, Indonesia.

PT WIKA Gedung provides construction services. It serves the government, SOEs (regional or local governments), loan and private sectors throughout Indonesia. The firm operates as partner in construction, investment, concession and property. The company was founded on October 24, 2008 and is headquartered in Jakarta, Indonesia.