ZhangJiaGang JiaDa Chemical Co., LTD. established in February 2009 --zhangjiagang No.5 Chemical Plant before-- is a specialized producer manufacturing reactive dyes since 1982. To meet the increasing market damands,a newly invested company Jiangsu Chen’s Dyestuff Chemical Co.,Ltd.has been on stream in 2003 .Intermediates as 4'-aminoazobenzene-4-sulfonic acid and six hydroxy pyridinecarbonitrile bagan to be associate producted for complete sets since 2008. At present our annual capacity of in...