Zhaocounty Granray Bioproducts Co., Ltd. located in Shijiazhuang city Hebei province. It's a newly established based on researching and development, leading to the amino acid for the purpose of biological products factory. The main production and sales of amino acid and it's salts and derivatives. The main products are: glycine, glycine hydrochloride, sodium glycinate, zinc glycinate, magnesium glycinate, calcium glycinate, iron glycine, guanidinoacetic acid, glycylglycine, L- lysine hydrochloride, DL (L-) L- alanine, arginine, DL (L- methionine), L- arginine, L- L- threonine, cystine ammonia acid, L- cysteine. Compound amino acid etc.