Jiangsu Zhongneng Silicon Industry Technology Development Co., Ltd. is a high-purity polycrystalline silicon production enterprise wholly-owned by Poly GCL (HK3800), a Hong Kong listed company, and a school enterprise cooperative unit of China University of Mining and Technology. Established in the Economic Development Zone of Xuzhou City, Jiangsu Province in March 2006, after three years of construction, five polycrystalline silicon production lines with a total capacity of 18000 tons were completed by June 2009. It is expected that the production capacity will increase to 21000 tons by 2010, making it the world's largest single investment polycrystalline silicon production base. The completed production capacity ranks first in China and first in Asia, making it the third largest professional polysilicon manufacturer in the world.