The registration address of beijing teng-chung technology ltd is located in room a-2868, building no. 3 of the zilong economic development area, located in the zilong economic area of beijing city. The registration authority is the market supervision authority of the zilong district of beijing city. The legal entity is represented by li bing, and its activities include the development, promotion, service, transfer and consultation of technologies; the sale of electronic metaware, sensors, instrument meters, electronics, hardware, hardware, hardware and equipment, electrical and electrical equipment, communications equipment, computer software and hardware, as well as off-site chemical products (without hazardous chemicals and a category of toxic chemicals). (an enterprise shall, in accordance with the law, freely choose to operate its own projects and carry out its activities; an approved project shall, in accordance with the law, operate its activities in accordance with the approved content, subject to the approval of the relevant sector; and it shall not engage in activities in which the industrial policy of the municipality prohibits or restricts the operation of projects of its kind