The registration address of the sioux caizen biotech company ltd. Is located in room 4058, 4th floor, zhou yang north road, quinshan city, and is the administrative approval authority of quinshan city. The legal entity is represented by zhang ting-weng, and operates on general items: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; import and export of goods; technology; sale of biologically based materials; rental services (other than licensed rental services); sale of medical devices in category i; sale of medical devices in category ii; sale of instrument instruments; sale of laboratory analytical instruments; sale of mechanical equipment; sale of specialized chemical products (other than dangerous chemicals); sale of daily chemical products; sale of moulds; sale of rubber products; sale of plastics; sale of daily glass products; sale of functional glass and new optical materials; sale of glass fibres; sale of packaging and products; sale of paper products; sale of daily supplies; sale of synthetic materials; sale of sealed-filled materials (in addition to the legally approved projects, operating independently of a legal licence)