The registration address of the city of dong chong is located in room 201, arnxiaan street, dong chong, city of guangdong province. The registration authority is the market supervision authority of dong chong, represented by zheng xinghui, and operates in the following areas: research and development, production, processing and sale of electronic materials, glue products, insulation materials, shielding materials, flame retardation materials, industrial tape, silicon products, photovoltaic products, nanomaterials, high performance membrane materials, copper tape belts, hardware, fibre-optic materials, carbon-fibre materials; 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 are not allowed to operate without the approval of the relevant authorities) i'm not sure