Shanghai Kaiwodun Biochemical CO.,LTD located in the Yangtze River---Yangtze River isChina's densely populated, the most economically prosperous region, With itsrich animal and plant resources, our company focuses on research anddevelopment of different kinds of animal and plant extracts to adapt to humanhealth need in today's society.At the same time, because of its mastering ofYangtze River situation, has now become the popular supplier of high qualityraw materials for most of the local phytochemistry factory.