Yong Yang Pharmaceutical Co., Ltd. is manufacturer of APIs and intermediates with emphasis on cephalosporins such as Ceftriaxone Sodium, Cefotaxime Sodium, Cefpirome Sulfate, Cefepime HCl, Ceftiofur HCl, Cefquinome Sulfate.Besides these, we also produce Ampicillin Sodium, Meclofenoxate HCl, Terbinafine HCl, Tilmicosin Phosphate, and Warfarin Sodium.