SGCC, a Chinese government-owned entity, was established on 29 December 29 2002. The company’s core businesses are the construction and operation of power networks across China (the present network covers 88% of the country). SGCC was ranked 8th in the Fortune Global 500 in 2010 and is the largest utility in the world. The company employs more the 1.5 million people.

You can find more information about SGCC at their website.