Chugai Pharmaceutical Co., Ltd. announced a change in Representative Directors with the resolution of the Board of Directors Meeting held on December 17, 2019. The change will be formalized after the Annual General Meeting of Shareholders and the Board of Directors Meeting to be held in late March, 2020. The company appointed Tatsuro Kosaka as Representative Director, Chairman and Chief Executive Officer (CEO) and Osamu Okuda as Representative Director, President and Chief Operating Officer (COO). Osamu Nagayama will retire as Representative Director, Chairman. Osamu Nagayama is expected to be appointed as Honorary Chairman. Effective date is late March, 2020.