The registered address of an jian (beijing) science and technology ltd. Is located on the 13th floor, 1311th floor, 28th floor, beijing economic technology development zone (thongzhou) cheong-sung 1st street, beijing city. The registered body is the market supervision authority of the beijing economic technology development zone and is represented by the legal person ho zhijun. It operates in the areas of technology promotion, technical services; economic trade consulting; construction project management; sale of mechanical equipment, metal materials, construction materials, electronics, communications equipment, type i medical equipment, hardware exchange (other than electric bicycles), chemical products (other than dangerous chemicals), instrument meters, electrons, special equipment; maintenance of laboratory equipment; commissioning of processing laboratory equipment; import and export of goods; import and export of technology; and import and export of agents. (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 carried out with the approval of the relevant sector; and not engage in activities which are prohibited and restricted by national and local industrial policy)。