The registration address of the sioux county norn complex is located in building b of the sioux state industrial park road no. 22, with the registration authority being the administrative approval board of the sioux state industrial park, with the legal personality representing zhou xianxian, which operates in the following areas: development and sale of composite materials, high-molecular materials, mechanical equipment, moulds and the provision of technical advice, technical services, technology transfer, import and export operations for the aforementioned goods and technologies. (activities subject to legal authorization, subject to authorization by the relevant department) general projects: manufacture of graphite and carbon products; manufacture of mechanical and electrical equipment; manufacture of general-purpose equipment (excluding special equipment); manufacture of specialized equipment (excluding licensed professional equipment); manufacture of bio-based materials; manufacture of high-performance fibres and composite materials; manufacture of car rims; manufacture of car parts and accessories; sale of high-performance fibres and composite materials; sale of civil aviation materials; sale of green composite materials for rail traffic; development of vehicle parts and components; distribution of vehicle spare parts (in addition to legally authorized projects, operating autonomously under a licence)