Greentech Biochemicals Co., Ltd.is a sales company on behalf of our co-operated manufacturers, especially for the products of chondroitin suflate and glucosamine and chitosan and hyaluronic acid and collagen and amino acid series.our manufacturer of chondroitin sulfate is a professional manufacturer from 1997 with 300 tons annual capacity in China. The brand Greentech has high reputation in the market of U.S.A and Europe based on 15 years production experience and advanced manufacturing process and cGMP quality control system. They are the 1st manufacturer who got the cGMP Certificate from the Natural Products Association (NPA) in Chondroitin Sulfate fields in China. Meantime we have prepared for the DMF in CTD format according to the requirements of Europe and U.S.A to co-operate with the customers better. We can supply Chondroitin Sulfate from Bovine, Porcine, Chicken and Shark Cartilage and Shark Cartilage Powder according to USP 34 and EP 5.5 standard. Our manufacturer of glucosamine was established in 2001 with annual capacity 200 tons including D-Glucosamine Hydrochloride, D-Glucosamine Sulfate Potassium Chloride, D-Glucosamine Sulfate Sodium Chloride, N-Acetyl-D-Glucosamine and Chitosan series relying on local abundant shrimp and crab resources. We take natural, clean, safe, healthy as our responsibility and get the trust from the customers.Depended on 15 years export experience in Biochemicals and Phytochemicals fields, Greentech Biochemicals Co., Ltd. also unite other manufacturers together to distribute Sodium Hyaluronate,Collagen and many kinds of Herb Extracts to the nutritional market.We are confident that you will discover Greentech Biochemicals Co., Ltd. to be a perfect and valued supplier once you enjoy our service.