国家电网
China Southern Power Grid Company Limited (CSG; ) is one of the two Chinese state-owned enterprises established in 2002 according to the precept to reform the power system promulgated by the State Council, the other being State Grid Corporation of China. It takes charges of participating in the investment, construction and management of power transmission, transformation and distribution covering China's five southern provinces of Guangdong, Guangxi, Yunnan, Guizhou and Hainan, while power generation is done by other five "power generation groups". The company is headquartered in Guangzhou, Guangdong.