Which city does Pingchuan District of Gansu Province belong to?

Pingchuan District of Gansu Province is located in the middle of Baiyin City, connected with Huining County and Haiyuan County, and adjacent to Jingyuan County and Jingtai County. Pingchuan District, with a total area of 2 126 square kilometers, is named after Pingchuan landform in China. 1985 In May, Pingchuan District was transferred from Jingyuan County to Baiyin City and became an administrative division under the jurisdiction of Baiyin City.