Xinyi Hanling Bilogical Engineering Co.,Ltd, is a leading manufacturer of amino acids. Which includs 6GMP plants and more than 20 non-GMP plants. We can use 3 different raw materials to extract amino acids. and have got GMP, Halal, Kosher and china drug certificats of amino acids. Welcome to visit our website: http://www.hanlingcn.com to learn to more information.