Shanxi Qingshan Chemical industry co. Ltd. is the biggest fluorescent whitening agent production enterprise in middle west region of China, and one of the largest scale fluorescent whitening agent production enterprises in China .  The company was founded on Aug., 1996, with approx. 120 acres land area (self owned) and assets RMB0.25billion. The Production of fluorescent whitening agent is composed of three series and over twenty  categories, which are mainly used in the fields of paper making, synthetic detergent and printing and dyeing.