The registration address of the han an lith technology development ltd. In beijing is located on the 4th floor of 1st floor, unit 504, building 6th floor of qingliang road no. 1 in changping district, beijing city. The registration authority is the market supervision authority of changping district, beijing city. The legal person is represented by jiang yancai and operates on the basis of technical promotion services; sells electronics, household appliances, building materials, chemical products (excluding dangerous chemicals), computers, hardware and software and assistive equipment; stores services for agricultural products; and maintains household appliances. (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