Tonking Biotech is a professional & experienced China GMP manufacturer with ISO Certificate and FDA registered,Which specialized in plant extract with monthly output 230 tons. Our company established in 2004 with 4 mordenised product line,Over 500 products to be offered and with more than 300 clerks. Xian TonKing is very proud of its leading expertise and capacity in the research,development andmanufacturing of top quality botanical extracts from a wide range of raw herb materials. Our liquid andpowdered botanical extracts are widely used with confidence and satisfaction by pharmaceutical,cosmetic, food and beverage industries around the world. With over 500 products to choose from, makeXi'an TonKing Biotech Co., your first choice.