State-owned enterprises. In 2003, China Enterprise Chengyi was approved by the General Administration of Customs to carry out tax-free car purchase agency services for returned overseas students across the country. Beijing China Enterprise Chengyi Car Purchase Service Co., Ltd. was specially established for overseas students and diplomats nationwide. For car purchase business, the company is a state-owned enterprise and has established operations in Beijing, Shanghai, Guangzhou, Shenzhen, Nanjing, Tianjin, Chongqing, Chengdu, Fuzhou, Xiamen, Wuhan, Zhengzhou, Xi'an, Changchun, Shenyang, Dalian, Hangzhou, Changsha, etc. International student car purchase outlets have been opened in many cities to provide portable and high-quality international student tax-free car services to international students across the country.