HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences on the marketing & distribution, thinkchem specializes in exporting pharmaceuticals, veterinary drugs, feed additives, intermediates, fine chemicals, plants extracts, pesticides, food&nutrition additives. I specialize in vitamin productswe are strong in Vitamin C(Ascorbic acid), Vitamin E 50% powder and VB2(Riboflavin), VB5, B6, vitamin H and so ***** one word, I can source the best price of vitamin products for you due to my strong relationship with local world famous manufacturing company in *****, our vitamin B1 and vitamin B6 price is very very ***** also promise that our quality must 100% meet your requirement and we have all documents for ***** you have any interest, pls contact me Email:jeffery at thinkchem dot com MSN:jeffery-thinkchem at hotmail dot com Skype:Hangzhouthinkchem