Zhejiang Tianrui Chemical Co., Ltd.

Zhejiang Tianrui Chemical Co., Ltd. (浙江天瑞化学有限公司) manufactures amino acids and amino acid derivatives at the Longyou Provincial Economic Development Zone in Longyou County, Quzhou, Zhejiang Province. Its address is 19 Kaifa Avenue, Donghua Subdistrict. The company is classified as a national high-tech enterprise.

Production centres on L-theanine, a glutamic acid series, an aspartic acid series, aspartate and threonate chelate salts, compound amino acids and protected amino acids. The catalogue also lists D- and DL-aspartic acid, L-asparagine, magnesium and potassium L-aspartate, potassium and calcium L-glutamate, L-glutamic acid hydrochloride, L-pyroglutamic acid and its magnesium and calcium salts, calcium and magnesium L-threonate, gamma-aminobutyric acid, CBZ- and BOC-protected amino acids, and non-amino-acid additives including resveratrol, pterostilbene, curcumin, ferulic acid, ectoine, nonivamide and glucurolactone. Custom synthesis is offered alongside the standard range.

The plant was designed, built and is operated to pharmaceutical manufacturing standards, with production control and quality assurance systems based on ICH Q7. The company holds FSSC 22000 food safety and ISO 14001 environmental management certification and has completed an SMETA ethical trade audit. Products carry FDA GRAS, HACCP, Kosher, Halal and Non-GMO certifications. Tianrui holds its own import and export licence and reports trading relationships in more than forty countries and regions.