Dalian Hong-Chem Trade Co., Ltd. is located in Dalian, Liaoning Province, one of the biggest ports in China. Making full use of local rich magnesium ore resources, our factory is specialized in magnesium products, silicon products and borates, such as magnesium sulfate, magnesium chloride, magnesium carbonate, magnesium oxide, diatomite, etc. Our magnesium products are widely used in fertilizer, feed additives, medicine and other fields. Our company owns ISO, REACH and other quality ...