Hanjin Heavy Industries & Construction Holdings Co., Ltd. (003480.KS) operates as a holding company that manages investments across shipbuilding, construction, engineering, energy, and leisure sectors primarily in South Korea. Through subsidiaries including Hanjin Heavy Industries & Construction, Daeryun E&S, Hanil Leisure, and Hancor Inc., it oversees city gas supply encompassing natural gas distribution; power generation services such as electricity and heat supplies; golf course operations; engineering consulting; and residual shipbuilding and heavy construction activities. The company, founded in 1937 and headquartered in Namyangju-si, South Korea, maintains a diversified portfolio with Daeryun E&S focusing on clean energy solutions, Hanil Leisure managing leisure facilities, and Hancor Inc. supporting related operations. In recent years, its key subsidiary Hanjin Heavy Industries & Construction underwent a major ownership change in 2021, when a consortium led by Dongbu Corporation, alongside EcoPrime PE and NH-OPUS funds, acquired a controlling 66.85% stake from creditors including Korea Development Bank, marking a strategic shift toward stabilization and ESG-focused reforms under new management.