The registration address of nanyu science and technology ltd. In dongcheng city, guangdong province, is located in building 401 no. 8 no. 2 of teashan town road, dongcheng city. The registration authority is the market supervision authority of dongcheng city, represented by a legal person, and includes research and development, technology transfer, production and marketing: electronics, packaging materials, photovoltaic materials, insulation materials, pentagold plastics, goods and technology import and export. (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities) i'm not sure