Located in the southeast of Sichuan Basin and the middle section of lower reaches of Tuojiang River, Neijiang was once founded as a county called Hanan or Zhongjiang during the Eastern Han Dynasty (25-220), which has a history of over 2000 years. Neijiang Prefecture was founded in 1950, and was rebuilt as a province-governed city in 1985. In 1998, Neijiang was divided into Neijiang city and Ziyang area under the approval of the State Council. The city now consists of Shizhong District, Dongxing District, Longchang City, Zizhong County, Weiyuan County, Neijiang Economic Development Zone and Neijiang Hi-Tech Industrial Park, which includes 107 townships, 1649 administrative villages, 14 street offices and 334 communities with a total population of 4.2 million. GDP of Neijiang reached nearly 130 billion yuan in 2016, making it one of the largest economic centers in Sichuan. Neijiang, with a long history of sugar refinery, had a high production of sugar which accounted for about 50 percent of the whole country when the planned economy prevailed. Therefore, it’s also renowned as the “ Sweet City”.