Sanxin’s factory is located in Dongcheng Industrial Park, Fang County, Shiyan. The whole factory covers an area of 14666 square meters. Currently, we are equipped with 2 production lines, one is a countercurrent production line which is 48 meters long and can carry 500-700 kilograms of raw materials per hour. We specially designed our mixed solvent extraction system to increase product yield. Sanxin’s top technology is our method of extracting high-purity resveratrol from polygonum cuspidatum. The purity can be up to 98%-99%.