China Railway Chengdu Group, officially abbreviated as CR Chengdu or CR-Chengdu, formerly, Chengdu Railway Administration is a subsidiaries company under the jurisdiction of the China Railway (formerly the Ministry of Railway). It is in charge of 9 primary railway routes, with operating length of 4,457.8 kilometers. It oversees the railway networks in Sichuan, Chongqing, Guizhou, although the portion of Nanning-Kunming railway in Guizhou is administered by Kunming Railway Administration. The railway administration was reorganized as a company on November 2017.