Wufeng Chicheng Biotech company is the professional manufacturer of gallic acid, propyl acid,tannic acid, pyrogallol acid and ellagic acid and pharmaceutical ingredients. These products are widely used industrial, feed, food and pharmaceutical etc. We have our own material base of Chinese gallnut, with the control from the material to finished products by ourself. Best price, timely delivery and best quality to ensure the customer satisfaction. Welcome for customer all over the world!