Boustead Heavy Industries Corporation Berhad operates as a defense contractor in the marine, aerospace, and weapons and combat systems sectors primarily in Malaysia. It operates through two segments, Defence and Security, and Commercial. The Defence and Security segment engages in the maintenance, repair, and overhaul (MRO) of the Navy's patrol vessels and submarines; and manufacturing, supply, and maintenance of defense related electronic products. The Commercial segment provides heavy engineering; shipbuilding; MRO of non-defense related vessels, and aircraft wheels and brakes; and training services, as well as trades in goods. The company is also involved in the fabrication of steel structures and platforms, marine engineering, oil and gas fabrication, and hook-up and commissioning businesses. In addition, it offers maintenance and services for arsenal, telecommunication systems, submarines, and other defence related products; marine and defence business management training and other educational projects; engineering services for oil and gas industry; and in-service support for maintenance, service, and supply of spare parts for vessels. Further, the company is involved in the supply and service of marine and naval defence related products; provision of integrated logistics support services; and chartering of ships and vessels. Additionally, it supplies electronics and system technology to defence related industry; and invest in properties. The company was incorporated in 1971 and is headquartered in Kuala Lumpur, Malaysia. Boustead Heavy Industries Corporation Berhad is a subsidiary of Boustead Holdings Berhad.