Yichang, a large city in west of Hubei province,the center of China governs 3 cities, 5 counties and urban districts,
Among them, Yiling Distric, Yuan An County and Xin Shan Country have rich resource of rock phosphate.
According to the official survey by Yichang Municipal Government, the total reserve is 890 milion metric tons.
100 flights per week in San Xia Airport join Yichang to other such main cities in China as Beijing, Shanghai,
Guangzhou, Shenzhen, Wuhan, Kunming, Chongqing.