The registration address of dong yuan yi fung plastics limited is at no. 319, yuanshan village round mountain road, changping town, dong chong city, with the registration authority being the market supervision authority of dong chong city, represented by legal persons, and includes research and development, design and sale of plastics, hardware, electronics, smart electronics, storage equipment, packaging materials, environmental protection equipment and materials (other than hazardous chemicals); import and export of goods or technology (with the exception of goods and technologies which are prohibited by the state or involve administrative approval). (projects subject to legal approval to operate with the approval of the relevant department)