HSD Engine Co., Ltd. manufactures and sells diesel engines worldwide. The company provides low and medium speed marine diesel engines for ocean-going vessels; and diesel engines for electric power generation. It also offers engine parts, including cylinder liners, piston crowns, exhaust valve spindles and housings, pump barrel plungers, piston rings, spindle guides, exhaust valve seats, puncture valves, and main bearings; and warranty, operation and maintenance, technical, and preventive services. The company was founded in 1983 and is headquartered in Changwon, South Korea.