(FYI, many Chinese trading Co., are buying amino acids from us for exporting. )  One of the oldest & largest professional amino acid manufacturers in China!  The first one who began to produce L-Cysteine HCl & S-Carboxymethy-L-Cysteine in China!  We supply L-Amino acids as follows:  L-Cysteine, L-Arginine, L-Histidine, L-Lysine, L-Leucine, L-Tyrosine, L-Valine, L-Isoleucine, L-Serine, L-Tryptophan, L-Glutamic acid, L-Glutamine, L-Proline, L-Thioproline, L-Hydroxy proline, L-Citrulline, L-Aspartic acid, Glycine, L-Phenylalanine, L-Asparagine HCl, L-Ornithine HCl...Etc.  DL-Amino acids:  DL-Cysteine, DL-Cysteine HCl Mono, DL-Aspartic acid, DL-Phenylalanine, DL-Serine, DL-Alanine, DL-Tryptophan...Etc.  Acetyl amino acids:  N-Acetyl-Cysteine, N-Acetyl-L-Tyrosine, N-Acetyl-L-Leucine, N-Acetyl-DL-Leucine, N-Acetyl-L-Methionine, N-Acetyl-DL-Methionine, N-Acetyl-L-Tryptophan, N-Acetyl-L-Glutamine, N-Acetyl-L-Phenylalanine, N-Acetyl-L-Hydroxy Proline, N-Acetyl-L-Thioproline, N-Acetyl-L-Citrulline, N-Acetyl-L-Glutamic acid...Etc.  Compound salts of Amino acids:  L-Arginine L-Aspartate, L-Arginine-L-Glutamic acid, L-Ornithine L-Aspartate, Lysine-S-Carboxymethyl-L-Cysteine, L-Arginine Alpha-Ketoglutarate, L-Ornithine Alpha-Ketoglutarate, L-Citrulline L-Malate...Etc.  Amino Acids Esters:  L-Cysteine Ethyl ester HCl, L-Cysteine Methyl ester HCl, L-Leucine Ethyl ester HCl, L-Leucine Methyl ester HCl, L-Tyrosine Ethyl ester HCl, L-Tyrosine Methyl ester HCl, L-Lysine Ethyl ester HCl, L-Lysine Methyl ester HCl...Etc.  Any enquiry on Amino Acids, feel free to contact me please!