Failure to implement policies. The reason for the collapse of Chongqing Xintian Huakai was that it failed to implement the "double reduction" policy and was therefore sealed, leading to its closure. Chongqing, abbreviated as "Chongqing", also known as mountain city, fog city and bridge city, is a provincial-level administrative region, municipality directly under the Central Government, national central city and megacity of the People's Republic of China. It is one of the important national central cities approved by the State Council and the Yangtze River. The upstream regional economic center, the core city of the Chengdu-Chongqing twin-city economic circle, and the national important advanced manufacturing center.