What state-owned enterprises are there?

State-owned enterprises refer to enterprises owned, controlled or managed by the government or government agencies. In China, state-owned enterprises play an important economic role, involving many industries and fields. Here are some well-known state-owned enterprises:

1. China Petroleum and Natural Gas Group Co., Ltd. (hereinafter referred to as "PetroChina"): mainly engaged in the exploration, development, refining and sales of oil and natural gas.

2. sinopec group (hereinafter referred to as "Sinopec"): mainly engaged in the exploration, development, refining and sales of oil and natural gas, as well as the production and sales of chemical products.

3. China Offshore Oil Group Co., Ltd. (hereinafter referred to as "CNOOC"): mainly engaged in the exploration, development, refining and sales of offshore oil and natural gas.

4. China State Grid Co., Ltd. (hereinafter referred to as "State Grid"): mainly engaged in power transmission and transformation, power supply and sales, and responsible for the construction and operation of power grids in China.

5. China Southern Power Grid Co., Ltd. (hereinafter referred to as "China Southern Power Grid"): mainly engaged in power transmission and transformation, power supply and sales in five southern provinces, and responsible for power grid construction and operation in relevant regions.

6. China Telecom Group Co., Ltd. (hereinafter referred to as "China Telecom"): mainly engaged in fixed telephone, mobile communication, Internet access and broadband services.

7. China Mobile Communications Group Co., Ltd. (hereinafter referred to as "China Mobile"): mainly engaged in mobile communications, Internet access, broadband services and other telecommunications services.

8. China United Network Communication Co., Ltd. (hereinafter referred to as "China Unicom"): mainly engaged in fixed telephone, mobile communication, Internet access, broadband services and other telecommunications services.

9. China Railway Corporation (hereinafter referred to as "China Railway") is mainly engaged in the construction, operation and maintenance of railway infrastructure, and is responsible for railway transportation and dispatching in China.

10. China Aviation Industry Corporation Limited (hereinafter referred to as "AVIC"): mainly engaged in the production and sales of R&D, aircraft, aero-engines and airborne equipment.

These state-owned enterprises play an important role in China's economy and are of great significance to the country's infrastructure construction, energy supply, communication services and transportation.