Dongying Guofeng Fine Chemicals Co.,Ltd established in June ,2000, is China's first high-tech business producing brand Guofeng solid cationic eherrification agent-EPTAC(2,3-epoxypropyl trimithylammonium chloride) liquid cationic etherification agent-CHPTAC(3Chloro-2hydroxypropytrimethyl ammonium chlorode) )and dimethl dially ammonium chloride -DMDAAC . Besides of its original annual protion of nother project of 500tons EPTAC and 20000tons CHPTAC,now the company has finished the construction of norger project of 1000tons EPTAC per year .under the tremendous support of Shengli Oilfield Technology Center,the company has taken the lead in successfully developing chlorohydroxypropytrimethyl ammonium chloride .Futuremore ,the company realized teachnological industrialization in 2001,fully owned the independent intellectual property rights ,and becase a leaderin the field of cation etherifying afents in China. The company in order to improve the quality of the products,has extensive alterations expand its influence ,make the abundance of products to the world .