Guizhou Miaoyao Biotech Co.Ltd is the largest natural valerian oil (sleeping oil) & Borneol manufacturer in China. The plant and production line was established according to GMP standard requirement, and have passed ISO 9001 , Kosher certificate and so on. Our natural extract factory has established in Tongren county, where specialized planting Valerian, Rosemary and so on. Covering more than 3300 acres and around 8300 acres more. We are going to be built in five years with a planned investment of 25 million RMB (USD 4.2 million). This project will increase the annual processing capacity of plant extracts to 3000 tons. Meanwhile, we have very close connection with local herb farmers to guarantee us traceable and constant supplies. Please contact us info@lvyinbio.com if you need above products.