Because the government has issued relevant documents.

Huaian, formerly known as Huaiyin and Qingjiangpu. Huaian is located in the central area of northern Jiangsu Province, downstream of Huaihe River. Lianyungang city in the north; Yancheng city in the east; Yangzhou City and Chuzhou City in Anhui Province in the south; Suqian is adjacent to the west. Huai 'an is a city under the jurisdiction of Jiangsu Province. The total area of the city 10030 square kilometers.