Tianning Economic Development Zone is located in the northeast of Changzhou city center. It is a provincial development zone approved by the National Development and Reform Commission and the Jiangsu Provincial government in August 2006. In 2016, Tianning District started to implement the east expansion project, the administrative area of the development zone includes Qinglong Street, Diaozhuang Street and Dongqing District of Zhenglu Town, with an area of 53 square kilometers and a permanent population of 76,100.

In 2021, the annual general public budget revenue will reach 1.92 billion yuan, an increase of 11.7 percent year on year; Investment in fixed assets grew by 7.5% year on year. The registered foreign capital actually received US $170 million; The output value of high-tech was 12.4 billion yuan, up 10.1% year on year; Total retail sales of consumer goods grew by 23.3% year on year. The total volume of foreign trade imports and exports reached 5.98 billion yuan, 81 new enterprises above designated size were awarded the national "two industries" integration pilot units, and 185 provincial and urban honors were won throughout the year, and the comprehensive evaluation of provincial development zones achieved five consecutive rises, ranking 22nd.