Established on December 29, 2002, SGCC is a wholly state-owned company directly managed by the central government in accordance with the company law. It is a super large key state-owned enterprise related to the lifeline of the national economy and national energy security. With investment, construction and operation of power grid as its core business, the company undertakes the basic mission of ensuring safe, economic, clean and sustainable power supply.

China National Tobacco Corporation, hereinafter referred to as China tobacco, was established in January 1982. Its main responsibility is to implement centralized and unified operation and management of the production, supply, sales, import and export business and foreign economic and technological cooperation of its affiliated enterprises in accordance with national laws and relevant regulations, decrees, guidelines and policies of the State Council and national plans.

China Datang Group Co., Ltd. is a super large power generation enterprise group established on December 29, 2002 on the basis of some enterprises and institutions of the former State Power Corporation. It is a wholly state-owned company directly managed by the central government. It is a state authorized investment institution and a pilot state holding company approved by the State Council

China Mobile. is a central enterprise established on April 20, 2000 in accordance with the overall deployment of the national telecommunications system reform. In December 2017, the company system was reformed, and the enterprise type was changed from an enterprise owned by the whole people to a wholly state-owned company, and renamed China Mobile. China Mobile is a mobile communication operator based on GSM, tdd-lte and fdd-lte networks.

China Unicom. On January 6, 2009, it was merged and formed on the basis of the former China Netcom and the former China Unicom. It has branches in 31 provinces (autonomous regions and municipalities directly under the central government) in China and many countries and regions abroad. It is the only telecommunications operation enterprise listed in New York, Hong Kong and Shanghai at the same time. It has been selected as the "world top 500 enterprise" for many consecutive years.