my company ,naturalin bio.co.,ltd ,is one of the largest company in the area of plant extract .we can supply many kings of plant extract .our website is www.naturalinbio.com ,we can get more information on it . we can supply :1 ,tea leaves (dark tea ,fuzhuan tea ) 2, tea extract (catechins ,polyphenols ,EGCG ) 3 ,instant chrysanthemum powder ,instant tea powder 4 stevia 80%,grape seed extract95% ,ginger extract5% ginseng extract80%, ginkgo extract24-6-5PPM ,rhodiola extract4%rosavins ,bliberry extract25% and so on . Hope a longterm cooperation with your company .I think the lowest price ,the good qunlity ,the prompt delivery will bring a great profit for us .any inquiry ,please on hesitato to contact to me .