ZhongYuan Building,

We are specialized in pharmaceutical intermediates and Amino acid products.<br/><br/>Pls check following list: (Amino acid)<br/><br/>1 L-Hydroxy...

Tanggu East Street

We are true leading manufacturer of various amino acid, APIs & food additive. The factory have 3 producing line with strong capacity, qualify the ISO 9001: 2000 quality systerm. <br/&am...

zhangcun industry zone, Gaocheng,

A true manufacturer specialize in produce various Amino acid and other fine chemical products. Our main product include L-tryptophan, L-hydroxyprolin, L-proline, L-methionine, DL-methionine, L-threoni...