General Items: Technical services, technical development, technical consulting, technical exchanges, technology transfer, and technology promotion; manufacturing of plastic products; sales of plastic products; manufacturing of bio-based materials; sales of bio-based materials; research and development of bio-based material polymerization technologies; research and development of bio-based material technologies; manufacturing of synthetic materials (excluding hazardous chemicals); sales of synthetic materials; research and development of new materials; manufacturing of new types of membrane materials; sales of new types of membrane materials; manufacturing of high-performance fibers and composite materials; sales of high-performance fibers and composite materials; manufacturing of plastic packaging boxes and containers; sales of food-grade plastic packaging, containers, and tools; manufacturing of medical packaging materials. (Activities are conducted independently according to the business license, except for those that require approval by law) Permitted items: Production of food-grade plastic packaging, containers, and tools.