Zhangjiacun ore mines located in the Limestone fault zone in the lower Ordovician system. The ore is of fine grain, block structure, the color was gray, grayish yellow and grey. The rich reserves of barite veins by drilling survey of about 17 million tons reserves, long-term reserves of 30 million tons. The mine was officially put into operation in June 2014, has an annual 500,000 tons of high-quality ore, is one of the largest barite mine in Central China, North Chinas in production.