1, China Telecom: China Telecom Group Co., Ltd. was established in September 2002. It is a super-large state-owned communication enterprise in China and a global partner of Shanghai World Expo. It has been selected as one of the "Top 5 Enterprises in the World" for many years, mainly engaged in comprehensive information services such as fixed telephone, mobile communication, satellite communication, Internet access and application.
2. China Mobile: China Mobile Communications Group Co., Ltd. is a central enterprise established on April 2, 2002 according to the overall deployment of the national telecommunications system reform.
3. China Unicom: China United Network Communications Group Co., Ltd. was established on June 6, 2009 on the basis of the former China Netcom and the former China Unicom. It has branches in 365 and 438+0 provinces (autonomous regions and municipalities directly under the Central Government) and many overseas countries and regions, and has been selected as one of the "Top 5 Enterprises in the World" for many years.