The "three links" in the three links and one reach are YTO Express, STO Express, and ZTO Express; the "one reach" is Yunda Express.

1. Yuantong

Shanghai Yuantong Express Co., Ltd. has more than 100 transportation vehicles of various types, more than 30,000 employees, and its services cover more than 500 cities across the country. Founded on May 28, 2000. The company is headquartered in Huaxin Town, Qingpu District, Shanghai. Over the past few years, the company's business has developed rapidly, and its network covers every city in China.

2. STO

Shanghai STO Logistics Company has 247 independent city business offices, 179 business halls, and 1,220 operating points. Express was founded in 1993 and is an express delivery company. Mainly domestic joint venture (private) enterprises. It basically covers cities at or above the prefecture level across the country and cities at or above the county level in developed areas, especially in Jiangsu, Zhejiang and Shanghai, basically achieving no blind spots in delivery.

3. Zhongtong

Zhongtong Express Co., Ltd. was founded on May 8, 2002. It is a domestic logistics company integrating express delivery, logistics, e-commerce, and printing. Express delivery company. Registered trademarks "ZTO" and "ZTO".

4. Yunda

The "Yunda Express" brand was founded in August 1999 and is headquartered in Shanghai, China. Its service scope covers 31 domestic provinces (autonomous regions and municipalities) and Hong Kong, Macao and Taiwan regions. . Since 2013, Yunda Express has embarked on the pace of international development, successively carrying out international express business cooperation with Japan, South Korea, the United States, Germany, Australia and other countries and regions, and gradually going abroad.