The business scope includes sales of electronic special equipment; Sales of electronic vacuum devices; Sales of electronic components and electromechanical components; Sales of power electronic components; Sales of electronic products; Retail of electronic components; Internet sales (except for sales of goods requiring permission); Manufacturing of electronic components; Manufacturing of electronic vacuum devices; Manufacturing of discrete semiconductor devices; Integrated circuit manufacturing; Manufacturing of integrated circuit chips and products; Manufacturing of display devices; Manufacturing of semiconductor lighting devices; Manufacture of optoelectronic devices; Audio equipment manufacturing; Domestic trade agency; Sales of audio equipment; Manufacturing of video recording and playing equipment; Manufacturing of other electronic devices; Household appliance manufacturing; Sales of household appliances; Sales of spare parts of household appliances; Research and development of household appliances; Wholesale of electronic components; Sales of advanced power electronic devices; Optoelectronic device sales; Trade Brokerage; ; Manufacture of radio and television transmission equipment