Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" as well as the theory of "quality the basic, believe in the 1st and management the advanced" for C8H9NO3, L-Tryptophan , Dtpa-Cu 15% , Citric Acid ,Hmb-Ca . We have exported to more than 40 countries and regions, which have gained good reputation from our costumers all over the world. The product will supply to all over the world, such as Europe, America, Australia,Madrid , Marseille ,Malaysia , Bolivia .Besides there are also professional production and management , advanced production equipment to assure our quality and delivery time , our company pursues the principle of good faith, high-quality and high-efficiency. We guarantee that our company will try our best to reduce customer purchase cost, shorten the period of purchase, stable products quality, increase customers' satisfaction and achieve win-win situation .