Beijing chongqing environmental technology co. Ltd. Is the national director-in-chief of the beijing chongqing science and technology development co. Ltd. Under the banner of beijing chongqing science and technology development co. Ltd., and sits in the beijing zhongyang district in the second edition of zing yingmong valley. The cube is a modern technology enterprise that combines technological research and development, product production and marketing and construction services. It works on air-testing management, central air-conditioning cleaning and disinfection, car deodorant and cactericide services. Listed at the beijing stock exchange centre in 2015, stock code: zs2116. Since its establishment, services have been provided to a total of 10,000 plus a, including: the national convention centre, the asian investment bank, the institute of railway sciences, the national development investment corporation, the american group, the quakers, the eggshell apartments, the cedar estates, step education, beijing iv, the high-end cbd offices, offices, hotels, schools and other public places。