Founded in 1998, Skystone Feed Co., Ltd. is the world’s leading manufacturer of betaine with annual capacity 60,000MT, its products including ethoxyquin, compoud antioxidants,mould inhibitor etc, which have been distributed to more than 60 countries in Europe, North America, South America, Asia and Oceania.The company has got the certificates of ISO9001, ISO22000, FAMI-QS, ISO14001, OHSAS18001, HALAL, KOSHER; subsidiaries including Skystone Pharmaceutical Co.,Ltd, Vietnam Star Biological Technol