Our purpose would be to offer good quality products at competitive price ranges, and top-notch support to clients around the whole world. We're ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Nahs, HS CODE 283010 , Low Iron Chemical Sodium Hydrosulphide/ Sodium Hydrogen Sulphide , Sodium Hydrosulfide Formula ,hydrogénsulfure de sodium hydraté . we could solve our customer problems asap and do the profit for our customer. If you need good service and quality , pls choose us , thanks ! The product will supply to all over the world, such as Europe, America, Australia,Montreal , Pretoria ,Romania , Montreal .Nowadays our merchandise sell all over the domestic and abroad thanks for the regular and new customers support. We supply high quality product and competitive price, welcome the regular and new customers cooperate with us!