The registration address of hein-tailong science and technology ltd. In beijing is located at no. 210-0215, south tower, 2nd floor, 6th floor, galactic avenue, 6th floor, ishikiyama city, and is represented by wang fengying, a legal person, who operates on the basis of technology promotion, technical services, software development, hosting exhibitions, computer system services, economic information advice (without investment advice), conference services, business administration, marketing of daily supplies, crafts, needle textiles, electronics, mechanical equipment, computers, software and assistive equipment, metal products, hardware and power transfers (without physical shop operations), lamps (without physical shop operations), chemical products (without dangerous chemicals), cultural supplies, household appliances; import and export of goods, agents, exports and imports of technology. (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