Mianchi County, Henan Province belongs to Sanmenxia City, Henan Province, and is located in the northwest of Henan Province. It is bordered by the Yellow River in the north, across the river from Yuanqu, Xiaxian and Pinglu in Shanxi Province, Luoning and Yiyang in the south, Yima in the east, Xin 'an in the west and Shaanxi in the west. Mianchi County, located at the west end of Zhengzhou-Luoyang Industrial Corridor, is an important base of energy, metallurgy, building materials and refractories in Henan Province.