"Collectors: The workhorse of the thiol collector is Xanthate and to a lesser extent, di-thio-phosphate and di-thio-carbamate. Read our Case Study to find out why not all Xanthate from China are made equal. Our top selling range is Sodium Isopropyl Xanthate and Potassium Amyl Xanthate. Used world wide Copper flotation circuits Democratic Republic of the Congo, Zambia, Mexico, Chile and Canada. China is a world centre for collectors accounting for more than 50% of world manufacturing capacity for sulphide collectors. "