Zhejiang Tianrui Chemical Co.,Ltd. Founded in 2005, is a high-tech enterprise,specialized in R&D,manufacturing ,sale and technical services of L-Theanine,Resveratrol,GABA.L-Pyroglutamic and etc.

The manufacture is designed,built and operated according to the standards of a modern pharmaceutical facility.Sound quality control and quality assurance systems are established in accordance with ICH Q7 Guidelines.We are ISO2000(Food Safety Management System and ISO14001(Environmental Management System) certified.Our products have FDA GRAS,GMP .HACCP.KOSHER,HALAL and other international certifications.Through a decade of stable and fast technical advancement and corporate development,we build a good corporate brand image ,and achieve customer satifactions in food,beverage,health care product and household chemical industry,With a solid marketing network ,we have accumulated a wealth of experience and customer resources.We are one of top ranking manufactures and sales for L-theanine ,GABA.Reveratrol&L-Pyroglumatic acid etc in China.

We rlying on talent and technology advantages of both China and the U.S.We have established Tianrui Reserch and Development Center in Hangzhou,with the corn members of the national one thousand programdistinguished experts team ,to carry out biological medicine research and development has the first-class technology innovation team ,leading technnology,advanced research and development platform ,has been applied and obtained more than 10 national invention patents,.