Research and development of new material technology; manufacturing of technical glass products; manufacturing of optical glass; manufacturing of special equipment for the production of glass, ceramics and enamel products; processing of mirrors and similar products; vacuum coating processing; development of artificial intelligence application software; development of artificial intelligence theory and algorithm software; research and development of metal products; research and development of electronic special materials; integrated circuit design; manufacturing of electronic components; manufacturing of special electronic materials; research and development of Internet of Things technology; manufacturing of synthetic materials (excluding hazardous chemicals); manufacturing of special ceramic products; manufacturing of lighting fixtures Sales of technical glass products; sales of functional glass and new optical materials; sales of surface functional materials; sales of high-performance fibers and composite materials; sales of lighting fixtures; sales of special ceramic products; sales of new ceramic materials; sales of Internet of Things equipment; sales of chemical products (excluding licensed chemical products); Internet sales (except for the sale of goods requiring licenses); sales of household products; technical services, technology development, technical consulting, technology exchanges, technology transfer, technology promotion; import and export of goods; technology import and export. Licensed items: Road cargo transportation (excluding dangerous goods).