- Established in 1989, Daejoo ENT has manufactured and supplied high quality Pre-Insulated Pipe for heating & chilly water supplying as the leading company in national energy saving industry cooperating with Korea District Heating Corporation, Seoul Metropolitan Development Corporation, etc - In 2007, we extended our business scope to ESCO as the certified new and renewable energy specialist in order to carry out energy saving business. Through making partnerships with the nation’s best-class suppliers and our technical staff, we secure the competitive and customized photovoltaic system and equipment. - In order to maximize efficiency of the system, we provide reliable power -generating system through building excellent-quality module, inverter, structure, and program.- Listed on the Korea New Exchange(KONEX) market in 2013