Hanjin Heavy Industries & Construction Co., Ltd., through its subsidiaries, engages in shipbuilding, construction, engineering, energy, and leisure businesses primarily in South Korea. It provides shipbuilding services, and construction services for factories and plants. The company also distributes city gas to approximately 800,000 households in Seoul and northern Gyeonggi-do, and supplies district heating and cooling service to approximately 60,000 households in the Byeollae and neighboring districts, as well as sells electricity at the Korea Power Exchange.