General projects: technical service, technology development, technology consultation, technology exchange, technology transfer, technology promotion; Electronic components wholesale; Sales of electronic products; Sales of power electronic components; Sales of electronic components and electromechanical components; Electronic components retail; Integrated circuit sales; Integrated circuit chip and product sales; Integrated circuit chip design and service; Integrated circuit design; Research and development of electronic special materials; Sales of electronic special materials; Synthetic materials sales; Professional design services; Sales of special equipment for semiconductor devices; Sales of electronic measuring instruments; Sales of metal products; Sales of mobile communication equipment (except for items subject to approval according to law, independently carry out business activities according to law with business licenses)