Sunwin Chemicals, including Shanghai Sunwin Chemicals Co., Ltd. and Weifang Sunwin Chemicals Co., Ltd., with the former being center of R&D and international trade and the latter being manufacturing site, is a Professional chemical enterprise, specializing in such areas as food additives, feed additives and pharmaceutical intermediates. Relying on an area of more than 18 acre of manufacturing base, Sunwin Chemicals has been producing mainly three series of products, namely betaine series, pyridine derivatives and organic chelates. We are one of the biggest suppliers of betaine series around the world with an annual production capacity of more than 15,000 tons. In an effort to pinpoint the effectiveness of betaine and other nutritional additives in aquiculture and stock-breeding, Sunwin Chemicals focuses on conducting technological cooperation with other organizations, such as establishing post-doctoral program with Feed Research Institute which is affiliated to Chinese Academy of Agricultural Sciences. Years of continuous efforts have crystallized such certificates as ISO9001, HACCP, FAMI-QS and KOSHER. The year of 2003 witnessed the praise of Shandong's Hi-Tech Enterprise. With the principle of "Quality and customers first, Fair trade, Mutual benefits", Sunwin Chemicals is striving to offer you quality products and excellent service wholeheartedly.