The registration address of dong-eun environmental technology ltd. Is located in building no. 3 along river road no. 3 on the street of mangang, dong-eung province, with the registration authority being the market supervision authority of dong-eung city, with legal representatives, covering general items: technical services, technology development, technical advice, technology exchange, technology promotion; wind and fan manufacturing; generic equipment manufacturing (without special equipment manufacture); mechanical and electrical equipment manufacturing; hardware and electrical equipment manufacturing; general valves and rotor construction (without special equipment manufacture); refrigeration, air-conditioning equipment manufacturing; pumps and vacuum equipment manufacturing; metal structure construction; fireproofing material production; rubber manufacturing; manufacture of light construction materials; sales of metal materials; manufacture of electronic appliances; sale of gears and gears; sale of electrical equipment and electrical equipment; special equipment for the sale and repair of electrical equipment; equipment for the sale of electrical and mechanical equipment; equipment for the maintenance of the environment; special equipment for the sale of electrical and electrical equipment; and equipment for the sale of electrical equipment and electrical equipment; equipment for the maintenance of the environment. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)