Zeolite 4A is the substitute of STPP,it is the major builder of none phosphorus or low phosphorus detergent.We are a professional zeolite manufacturer, our production ability is 150,000 tons per year,it is the NO.2 in China. As one of the most important professional Zeolite 4A providers in detergent industry, our products have been used by most of big detergent manufacturers, such as Unilever, Nice, P&G, Henkel and so on.