Weifang Yitong Chemical Co.,Ltd, was established in the year of 2019, we are a professional manufacturer and distributor and exporter of calcium chloride, magnesium chloride,Carboxymethyl starch,magnesium oxide, Those products could be used as desiccant material. we have more than 8 years experience for exporting,Our products has ROHS and Halogen test.certificate, we have been exported to vietnam, indonesia, korea, Canada, Turkey. and so on, we could do Form E/Form F, OA .....we believe that honest can build up trust!