Shandong Yangcheng Biotechnology Co., Ltd. , established in 2009, focusing on fermentation and enzymatic production of a series of natural and recyclable products, mainly involving amino acids and pharmaceutical or new material intermediates. It is committed to the research and development and supply of raw materials for supplements, food additives, pharmaceuticals, and flavor and fragrance. The company currently has 5 series of products, including tyrosine, alanine, aspartic acid, GABA, and tryptophan. The main products include fermentation GABA, L-tyrosine, N-acetyl-L-tyrosine, tyramine (tyramine hydrochloride), Beta-alanine, D (DL) (L) - aspartic acid, Agmatine sulfate, L-theanine, caffeic acid, ferulic acid, cinnamic acid, p-hydroxycinnamic acid, p-hydroxyphenylacetic acid, ect. The company currently has 2 factories, with production facilities such as general fermentation workshop, refining and packaging workshop, and complete sewage treatment. The quality management system is complete, and our certificates are ISO90001, HALAL, KOSHER, FSSC22000, food production license, and cGMP under construction.