Langfang Hawk Technology& Development Co.Ltd is a manufacture built in 1992 specializing in scientific research,new product development and production.Our production capacity is 22000 tons per year. Hawk owns two R&D center,four subsidiary plants and a multi-function pilot plant. We are the first manufacture in China for Levulinic Acid Series,Dimethyl Disulfide Series and Azo-Polymerization Initiator Series.We keep on improving product quality and product after-sale service.We are stable supplier of some World wide Top 500 companies.