Profile: Zhangjiagang Huachang Pharmaceutical Co., Ltd. specializes in the research and production of amino acid & amino acid derivative as well as bulk drugs and intermediates. Our products line includes L series, DL series, N acetyl series and D series amino acid. Our L-methionine is widely used in the medicine amino acid big injection, oral liquid, drink, food and biochemical reagent. Our DL-Valine is used as acid making agent (hyperacidity), muscle nutritional disorder and therapeutic agent. Our D-alanine is used as the alanine protecting agent in the new broad spectrum antibiotic. Our D-mannose is used as food additives and also used in medical area, with good therapeutic action on diabetes, adiposis and constipation. We are accredited with ISO 9001 certification.