Hebei Xiecheng Biotech. Co.,Ltd.

As one of the largest manufacturers of amino acids in China, we specialize in producing L-Lysine HCL, DL-Methionine, L-Cysteine, L-Arginine, L-Tryptophan,etc. strictly under the standards of FCC/USP/EP.

Should you need any further info./sample, please just feel free to let us know.

Thanks in advance for your interest!