Deleum Berhad, an investment holding company, provides products and services to the oil and gas industries primarily in Malaysia. It operates through Power and Machinery, and Oilfield Integrated Services segments. The Power and Machinery segment engages in the sale of gas turbines and related parts, and overhaul of turbines, as well as provision of maintenance and technical services, including turnkey installation, package renewal, and retrofit; supply and commission of combined heat and power plants; and supply, installation, repair, and maintenance of valves, flow regulators, and other production related equipment. The Oilfield Integrated Services segment offers slickline equipment and services; integrated wellhead maintenance services; well intervention and cased hole logging services; gas lift valve and insert strings equipment, accessories, and services; specialty chemicals and well stimulation services; drilling and completions services; solid control services; subsurface engineering services; integrated corrosion and inspection services; and blasting technology services. This segment also engages in the maintenance, construction, and modification maintenance activities, as well as services for tanks, vessels, structures, and piping. It is involved in the development and provision of solid deposit removal solutions; servicing, repair, and maintenance of motors, generators, transformers, pumps and valves; and oilfield and chemical services, as well as provision of software. The company was founded in 1982 and is headquartered in Kuala Lumpur, Malaysia.