Zhengyang Industrial Park, Qianjiang, Chongqing, Shuiwa Park, Dianjiang County, Chongqing. According to the query of official website, Chongqing Taxation Bureau, Zhengyang Industrial Park in Qianjiang, Chongqing and Shuiwa Park in Dianjiang County, Chongqing are individually-owned tax approval parks in Chongqing. The sole proprietorship approved tax is a method for sole proprietorship enterprises and partnership enterprises to implement the approved industrial taxable income rate, which is approved annually and paid monthly.