Yangzhou Jiusheng Biotechnology Co., ltd, locats in Gaoyou City, which is producing and selling marine biological products . We mainly manufacture products include:D-Glucosamine Hydrochloride, D-Glucosamine Sulfate Potassium Chloride, D-Glucosamine Sulfate Sodium Chloride and so on.And the annual production capacity of the products about 800 tons.All staff of Jiusheng welcomes all the customers.