State Grid Corporation of China is the largest electric power transmission and distribution company in China and in the world, headquartered in Xicheng District, Beijing. For distribution, it has its subsidiaries for Northern China, Northeastern China, Eastern China, Middle China and Northwestern China. After the electricity "Plant-Grid Separation" reform in early 2000, the assets of State Electric Power Corporation , which included both power plants and electric grid all over mainland China, were divided into the five "power generation groups" that retained the power plants, and State Grid... Corporation headquartered in Beijing with its five regional subsidiaries and China Southern Power Grid Corporation headquartered in Guangzhou, that operate power transmission, distribution and other assets of the old State Electric Power Corporation. It was ranked eighth in the 2010 Fortune Global 500 list of the world's largest companies by revenue and has moved one place up in the 2011 Fortune Global 500 list.
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