High trade purity chem ltd .is a leading UsA Pharmaceutical Ingredient supplier special in Steriod hormone.The company supply preferential price and high quality products.We invest large fund and brains  developing new products and pioneering new technics, to meet the demand of the market. All the products from our plants are the fruit of out R&D department, reaching the advanced standard of domestic market, many of which reach the international standard.We Welcome  friends from all over the world and promote pleasant cooperation .we sincerely offer you the best quality products and services.