The full name of YTO Express is Shanghai YTO Express Co., Ltd., a private express delivery enterprise in Chinese mainland, which was established on May 28th, 2000. At present, Tong Yuan has 8 administrative districts, 65 transshipment centers, more than 6,000 distribution outlets and more than 654.38 million+employees in Chinese mainland, covering more than 6,000 cities in China. On May 5, 2009, Tong Yuan in Macau was established, and on May 20, 2009, Tong Yuan in Hong Kong was established.

Xi 'an, formerly known as Chang 'an and Haojing, is now the capital of Shaanxi Province, a sub-provincial city and a national regional central city (northwest). It is an important central city in western China approved by the State Council and an important scientific research, education and industrial base of the country. Xi is one of the four ancient capitals in China, a "world historical city" determined by UNESCO 198 1, and one of the top ten ancient capitals in the world selected by American media.

Xining, referred to as "Qing" for short, was called Qingtang City, Xiping County and Shanzhou in ancient times, which means "Xi Chang An Ning". It is the capital of Qinghai Province, an important central city in northwest China, the political, economic, scientific, educational, cultural, transportation and communication center of Qinghai Province, an inland open city determined by the State Council, and the resident of Xining Joint Logistics Support Center of the Central Military Commission.