The State Grid Corporation of China was established on December 29, 2002. It is a wholly state-owned company directly managed by the central government established in accordance with the "Company Law" with a registered capital of 829.5 billion yuan. Its core business is to invest in the construction and operation of power grids. It is related to national energy security and A super large state-owned key backbone enterprise that is the lifeline of the national economy.

The company's business area covers 26 provinces (autonomous regions and municipalities directly under the Central Government) in my country, and its power supply covers 88% of the country's land area. The power supply population exceeds 1.1 billion. In 2020, the company ranks No. 3 in the Fortune Global 500. In the past 20 years, State Grid has continued to create the world’s longest safety record for super-large power grids, and completed a number of UHV power transmission projects, making it the world’s strongest power grid with the largest scale of new energy grid-connected power grids, and the number of patents held for 9 consecutive years. Ranked first among central enterprises. The company invests in and operates the backbone energy networks of 9 countries and regions including the Philippines, Brazil, Portugal, Australia, Italy, Greece, Oman, Chile and Hong Kong. It has been awarded the State-owned Assets Supervision and Administration Commission of the State Council for 16 consecutive years and has been awarded the Standard & Poor’s for 8 consecutive years. , Moody's, and Fitch's three major international rating agencies are national sovereign credit ratings.