PT Cisangkan is a specialist in pre-cast concrete products encompassing concrete roof, blocks, tiles, curbs and pipes, as well as ventilation and paving blocks, and replica stones. The company’s factory is located in Purwakarta, West Java, with its head office located in Bandung.

Duta Sarana Perkasa is a leading producer of concrete pipes and precast concrete products in Indonesia. Duta Sarana Perkasa’s main product line is spun pipes, and the company has production facilities in multiple locations throughout Indonesia.

PT Trisakti Mekarmandiri is an Indonesian company specializing in designing and installing mechanical and electrical systems. The company’s portfolio includes installations for laboratories in schools, universities, hospitals and pharmaceutical companies, as well as for office and residential buildings, factories and warehouses.

Acset Indonusa Tbk is a construction engineering specialist with expertise in ground and foundation works. The company's services range from slipform construction and formwork systems, to waterproofing, pre-stressing, post-tensioning, basement construction and strutting. Acset Indonusa is a parent company to a number of subsidiaries, including PT Innotech Systems, PT Sacindo Machinery, PT Aneka Raya Konstruksi Mesindo, PT ATMC Pump Services, and Vietnam-based Acset Indonusa Co Ltd.

Bukaka Teknik Utama Tbk is an Indonesia-based publicly-traded company primarily engaged in providing engineering, procurement and construction services. The company's expertise include steel towers, steel bridges, boarding bridges, power generators, road construction equipment, and oil and gas equipment. Bukaka Teknik Utama is a parent company to PT Bukaka Mandiri Sejahtera, PT Bukaka Forging Industries and PT Bukaka Energi.