Zhejiang Tianqi Biotechnology, Inc. is located at No. 19, Kaifa Avenue, Longyou Provincial Economic Development Zone, Zhejiang Province, China. It is a company specializing in L-theanine, glutamic acid series products, aspartic acid series products, and aspartic acid chelate,Pterostilbene,Resveratrol, Curcumin ect. It is a national high-tech enterprise whose main business is the R&D, production an...