“Premium quality comes from strict quality management”. Xi an Sost Biotech Co.,Ltd. is specialized in the production, research and sales of all kinds of natural plant extract powder. “Concentrating plant extracts, for human health, building green products" is our mission. “Sincerity, mutual assistance, mutual trust, seeking common development" is our development principle. We’re willing to combine years’ extracting experience in research and development with the development trend of modern Chinese medicine,green food and healthy food. Guided by the demands of customers at home and abroad, we desire to cooperate with million friends, seek common development, create a bright future.