Changzhou is a prefecture-level city in southern Jiangsu province of the People's Republic of China. It was also known as Yanling, Lanling, Jinling, and Wujin previously. Located on the southern bank of the Yangtze River, Changzhou borders the provincial capital of Nanjing to the west, Zhenjiang to the northwest, Wuxi to the east, and the province of Zhejiang to the south. The city is situated in the affluent Yangtze Delta region of China.
