Since 1994, the manufacture of collagen and chondroitin sulfate has been led by Haiyang Sanfeng Biochemical. We have a BRC and NSF-GMP certified plant. We are now authorized to export to the EU and the USA, and we can offer the health or veterinary certificates for both items.Supplier of Ingredients: Specialty· Chondroitin Sulfate· Collagen· Fish· Collagen: Ovine· Collagen: Porcine· Glucosamine HCl· Glucosamine Sulfate