Sunwin Chemicals ,which include Shanghai Sunwin Chemicals and Weifang Sunwin Chemicals with the former being the center for international trade and R&D and the latter being the manufacturing site , is a leading manufacturer of betaine series in China , registering an annual production of betaine hydrochloride as high as 15,000 tons. 



Currently we can produce three major series :betaine series (betaine hydrochloride ,betaine anhydrous, betaine phosphate , betaine citrate etc.) , pyridine derivatives (niacin,nicotinamide, 3-Pyridine acetic acid hydrochloride etc.) and organic chelates ( picolinate , citrate, glycinate, methionine ).