Changsha Hekang Chemical Co.,Ltd, we established at 2007.Production plants are in Hunan and Shanxi Province. Producing 20000 tons Sodium cyanide and 10000 tons Sodium Dimethyl Dithiocarbamate per year. We manufacturing solid sodium cyanide by light oil splitting decomposition method, We manufacturing Sodium Dimethyl Dithiocarbamate by reactive Dimethylamine & Sodium hydroxide & Carbon disulfide method. We still promote the technical to improve the quality & efficiency for our solid sodium cyanide & Sodium Dimethyl Dithiocarbamate, We are operate both of our products according ISO 9001 the whole production, packaging and transportation. You can always get the right one you need in Hekang. Please don’t hesitate contact us!