The registration address of inseinda science and technology ltd. In beijing is located in district 301-b45, ja 560, nam street, tongzhou city, beijing. The registration authority is the market supervision authority of tunzhou district, beijing. The legal person is represented by zhang zheng jing, and its scope of operation includes technical extension services; the retail sale of hardware and electricity, mechanical equipment, communications equipment, instrumentation instruments, computers, software and assistive equipment, electronics, daily supplies, stationery, clothing and crafts; economic and trade counselling; maintenance of computers; and rental of office equipment. (the subject of the market may, in accordance with the law, freely choose to operate projects and carry out business activities, as well as projects subject to legal approval and subject to the approval of the relevant sector, and may not engage in activities in which the state and municipal industrial policies prohibit and restrict such projects