TBK & Sons Holdings Limited, an investment holding company, undertakes civil and structural works in the oil and gas industry in Malaysia and the People’s Republic of China. The company operates through Site Preparation Works Projects, Civil Works Projects, Building Works Projects, Construction and Renovation Works Projects, and Trading of Oil and Related Products segments. Its civil and structural works services include site preparation works, such as earthwork, demolition works, and temporary facilities, as well as infrastructure construction, including building temporary site offices, canteens, warehouses, etc.; and civil works for process plants comprise reinforced concrete foundations, pipe supports, ponds, pits, underground and open drainage networks, paving works, and related plant civil maintenance works. In addition, the company undertakes building works, such as the building of sub-stations, field auxiliary rooms, workshops, and storage buildings, etc.