Shanghai Joinray Biotechnology Co., Ltd is a biotech company, focusing on developing, manufacturing and marketing proprietary amino acid products of biological fermentation technology. The company's key personnel are all experienced engineers with proven track records and are well known in the field. The pharmaceutical products developed and produced by fermentation method are L-Arginine, L-Citrulline, L-Ornithine, α-Arbutin,D-Alanine.

The manufacturing facility is located in Haining, Zhe Jiang Province, with over 500 Sq.m GMP workshop, state-of-art equipments, advanced analytical testing labs, qualified professionals and experienced management team. we are the earliest producer of L-Citrulline and L-Ornithine of bio-fermentation in China. We provide our customers high quality products and services, timely and accurately complying with different requirements.