Located in leyu industrial concentration area, zhangjiagang city, jiangsu changyu chemical co., ltd is a medium-scale chemical manufacturing enterprise of series of phosphate ester flame-retardant and plasticizers, pharmaceuticals, pesticides, dyes intermediates, and so on.. covering an area of 1,400 square meters, we now have 380 employees annually produce cny 380 million products. welcome to cooperate with us about your chemical project any time.