Shijiazhuang Jirong Pharmaceutical Co.,Ltd is a well-known pharmaceutical firm specializing in 10 varieties of amino acid APIs such as Glycine, L-Methionine, L-Proline, L-Lysine HCL, L-Threonine, L-Leucine, L-Alanine, L-Phenylalanine, L-Tryptophan, and L-Serine. Founded in 1993, Jirong Pharma is widely acknowledged as a top-quality producer of pharmaceutical-grade amino acids with GMP certification and an extensive product range.