Ningxia AOSI Chemical Co., Ltd. was established in November 2011, located in Ningxia Zhongwei Industrial Park。The company's main products 30% cyanamide annual output of 60,000tons, 50% cyanamide annual output of 12,000tons.Cyanamide is widely used in chemical manufacturing, medicine, health products, feed additives and other industries, and is also an important intermediate in the pesticide industry