Beijing's registration address is located at 18th-d4116, construction road, leung street, located in the mountains of beijing city. The registration authority is the beijing city housing mountain market supervision authority, represented by wang xiaojun and operating in the areas of technology development, technology transfer and technical advice (except for intermediaries); the sale of computers and peripheral equipment, electronic devices, mechanical and electronic equipment, computer software, household appliances, photographic equipment, communications equipment (with the exception of satellite receiving equipment), type i medical devices, type ii medical devices, safety technology prevention products; computer maintenance; computer animation design; design, production, agency, advertising; and the rental of computers and assistive equipment and electronics. (the subject of the market may, in accordance with the law, freely choose to operate projects and carry out business activities; projects which are subject to legal approval and which are subject to the approval of the relevant sector; and activities in which the state and municipal industrial policy prohibits and restricts such projects