TradeVerify Xi&＃39;an Guanyu Bio-Tech Co., Ltd. is located in Xi&＃39;an City, a famous ancient cultural city in China, which enjoys a brilliant civilization history and rich natural resources. Guanyu Bio-Tech specializes in the research, development, production and trade of API (active pharmaceutical ingredient). Guanyu Bio-Tech has 100 staff members with various expertise including 50 phytochemistry and medicine synthesis technicians. In 2008, the annual export value was 10 million U.S. dollars. Guanyu Bio-Tech mainly undertakes research, development and production in the fields of health food raw materials and anti-cancer pharmaceutical raw materials. Health food raw materials: resveratrol, polydatin, piperine, evodiamine, icraiin, silybin, cytisine, puerarin, yohimbine, synephrine hydrochloride, curcumin, ferulic acid, ursolic acid, chlorogenec acid, saw palmetto P.E., grape skin P.E. and others;Anti-cancer pharmaceutical raw materials: irinotecan, paclitaxel, docetaxel, homoharringtonine, etoposide, topotecan, camptothecin, 10-hydroxycamptothecin and others. Now, we have developed more than 200 kinds of plant extract (API).Our products have been exported to the USA, Europe, Asia, Africa, South America and Australia and enjoy a high reputation. We also supply contract or custom-made research development on natural products either as raw materials or for end use. Our powerful R& D team will satisfy you with low cost and good efficiency.Xi&＃39;an Guanyu Bio-Tech Co., Ltd.