Xi an Sost Biotech CO,. Ltd. is the leading manufacturer in research, development, production, sale and service of Herbal Extarct, as well as Chinese medicine raw material. We insist on producing high quality, green products for human health. Building mutually beneficial and win-win partnership as our development strategy. We have 2 factories with area about 40,000 square meters totally, and located in Xi`an, Shaanxi, China with convenient transportation...