Stx Heavy Indu

HD-Hyundai Marine Engine Co., Ltd. manufactures and sells marine engines, industrial facilities, and plants in South Korea and internationally. It produces large low-speed diesel engines for ships and power plants, and supplies technical support and engine spare parts such as exhaust valves, fuel valves, fuel pumps, pistons, stuffing boxes, bearings, pipes, cylinder covers, and turbocharger parts. The company also develops, manufactures, and sells wind equipment and provides shipbuilding equipment. Formerly known as STX Heavy Industries Co., Ltd., it changed its name to HD-Hyundai Marine Engine Co., Ltd. in July 2024, was founded in 1976, and is headquartered in Changwon-si, South Korea.