Beijing north koohua environmental science and technology ltd. Is registered at building 2a25, building 7 of the jachian garden 15, beijing city. The registration authority is the market supervision authority of beijing city, with legal representatives hu xiaoqing, and its operations include technology development, technology promotion; economic information advice; organization of cultural and artistic exchange activities; conference services; hosting of exhibitions; computer animation design; engineering survey design; interior decoration engineering design; sale of mechanical equipment, building materials, hardware, metal materials, electronics, chemical products, stationery supplies, sports supplies, crafts, computer software and assistive equipment. (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