Betaine series is the major contribution from our company ,Sunwin Chemicals ,which include Shanghai Sunwin Chemicals and Weifang Sunwin Chemicals Co. Ltd.,with the former being the center for international trade and R&D and the latter being the manufacturing site.

Currently we can produce three major series :betaine series (betaine hydrochloride ,betaine anhydrous, betaine phosphate etc.) ,pyridine derivatives (niacin,nicotinamide, 2-Chloronicotinic acid ,3-Pyridine acetic acid hydrochloride etc.) and organic chelates (picolinate ,citrate,glycinate,methionine).