China Supplier 99.5% Purity hs code magnesium sulphate AR grade

Shanghai Ruizheng Chemical Technology Co., Ltd was established on 2012,is a private chemical enterprised who specialized in custom synthesis,production and trading.We located in Shanghai,and our mission is "make customer satisfied ,make employees happy",aim to service the worldwide clients ,including GE,SAMSUNG,LG,DOW etc. Shanghai Ruizheng Chemical Technology Co., Ltd have passed ISO9001:2015,is one of the trade members on Alibaba .We involved in OLED intermediates ,precious metal catalysts,pharmaceutical intermediates,food additives,rubber and plastic intermediates,pesticides etc,95% of them were exported to all over the world ,high quality and good service have won many praise from customers. We could provides one-stop package service and solutions, from research and development, production to delivery and transportation, flexible and diverse FCL, LCL transport, to bring customers the ultimate service, many years of professional chemical product transport operation experience, not only Customers save costs and create more value for customers.