The registration address of tiandong gao xin (beijing) science and technology ltd. Is located in building no. 10, building no. 1 of haidang district, beijing city. The registration authority is the market supervision authority of haidian district, beijing city, with legal representatives and covers general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; data-processing services; software development; engineering and technological research and test development; information system integration services; import and export of goods; technical export and import; production of eco-environmental monitoring and detection instrument instruments; marketing of eco-environmental monitoring and detection instrumentation instruments; sale of instruments for geological exploration and seismic exploration; manufacture of instruments for geological exploration and earthquakes; manufacture of marine environment monitoring and detection equipment; sale of marine environment monitoring and detection equipment; sale of communications equipment; and leasing services (without licence type rental services). (except for projects subject to legal authorization, operating independently of the law by means of a business licence) (no activity shall be carried out in which the state and municipal industrial policy prohibits and restricts the operation of such projects