1, China Telecom: China Telecom is a state-owned telecom operator in China, which is responsible for providing telecom services and infrastructure construction to meet the communication needs of the public.

2. China Petrochemical Group: China Petrochemical is a state-owned petrochemical enterprise in China, mainly engaged in the exploration, development, production and sales of petroleum, natural gas and chemical products, making contributions to national energy security and economic development.

3. China Railway Corporation: China Railway is a state-owned railway transportation enterprise in China, which is responsible for the construction, operation and management of railway lines and provides convenient transportation services for the people.