Mencast Holdings Ltd. is an investment company, which engages in the provision of engineering, and maintenance, repair, and overhaul solutions. It operates through the following segments: Offshore and Engineering, Marine, and Energy Services. The Offshore and Engineering segment includes offshore structures, manufacturing, inspection, maintenance, and rope access services. The Marine segment offers sterngear manufacturing and refurbishment works, ship inspection, engineering and fabrication works, and diving services. The Energy Services segment covers waste treatment and recovery waste system. Its capabilities include treatment of waste, water, oily sludge, slope, mud oil, contaminated soil, solid wastes and filter cakes. The company was founded in 1981 and is headquartered in Singapore.