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Hangzhou Gosun Biotech Co., Ltd is a global supplier of plant extracts for the Food, Beverage and Nutrition industry. This company created several brand products of its own including Redkeys™, Goberry™, Goldgrape™, and more. They also manufacture many extracts such as Pygeum Africanum Extract, Giant Knotweed Extract, Wolfberry Extract, Milk Thistle Extract, Red Yeast Rice, Rutin, and so on.