Zhejiang Polnol Bio-Technology Co., Ltd is a private Hi-Tech company which is professionally response to produce the plant extracts. The company takes the pure natural plant green tea, read tea as the raw material, by utilizing the modern Hi-new technology and traditional technology together, specialization on researching and developing different kinds of green tea, red tea extract, and scaled producing with flexible producing system. Our main products: series of tea polyphenols, tea flavin, tea polysaccharides, etc, with the production scale of 500 tons tea extract annually. Supply our excellent natural organic products and technology service to the area of food additive, natural medicine, domestics, function food and essence & perfume etc.