Sichuan Bifu Biology Science & Technology Co., Ltd. is situated in the Modern Agriculture Industry Development Zone of Mianyang City, Sichuan Province, which is known as "Land of Abundance". Bifu is a powerful private enterprise, mainly engaged in the production and development of tea extracts. It covers an area of 48 mu and has invested 35 million yuan in constructing advanced production lines of high level tea polyphenols and green tea and black tea extracts. Advanced continuous production technology is used in the device and several patents and know-how are applied in the production process. In particular, its exclusive solvent replacement and big proportion recovery technology have begun the history of low production cost, high quality and strict residual control of tea extracts. As an outstanding achievement, this technology has greatly facilitated the application of tea polyphenols.