, Business scope includes: Permitted items: import and export of technology; import and export of goods; production of Class II medical devices (projects that require approval by relevant departments can only be carried out after obtaining such approval, specific business projects are subject to the approval results) General items: research and development of biobased materials; technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; manufacturing of industrial textile products; sales of industrial textile products; manufacturing of plastic products; sales of plastic products; sales of chemical products (excluding licensed chemical products); general equipment manufacturing (excluding special equipment manufacturing); sales of Class II medical devices; production of daily masks (non-medical); sales of daily masks (non-medical); wholesale of medical masks; sales of daily necessities; sales of textiles (except for projects that require approval, operations are based on the business license)