Yongjin Co., Ltd. is a specialized company in ship engine parts, boasting over 40 years of experience and technological expertise. Since 1986, starting from the production of wood molds for lathe engine parts, we have established a unique production system globally, encompassing wood and metal mold making, casting, processing, and now modules, based on the accumulated technology. This allows us to be a specialist company with a vertical production process, rare both domestically and internationally. Leveraging such groundbreaking systems and technological capabilities, we currently produce cylinder heads, a crucial component of ship engines, and supply them to HD Hyundai Heavy Industries, MANES, STX Engine, among others, exporting our products worldwide.