Mabion S.A. is a Polish biopharmaceutical firm dedicated to pioneering the... Mabion S.A. is a Polish biopharmaceutical firm dedicated to pioneering the development of biological drugs, primarily leveraging monoclonal antibody technology. The company oversees the full spectrum from research and development to the manufacturing and commercialization of therapies designed to combat a wide range of diseases, including neoplastic (cancer), autoimmune, metabolic, and neurological disorders. Key products in its portfolio include MabionCD20 and MabionHER2. Established in 2007, Mabion S.A. maintains its headquarters in Konstantynów Lódzki, Poland.