Eisai Co., Ltd. announced the retirement of Hideki Hayashi as Representative Corporate Officer, effective June 20, 2019, who is currently, Representative Corporate Officer, Japan Business, hhc Solutions Headquarters, Chief Information Officer, Nominee for New Director as Representative Corporate Officer. New Representative Corporate Officer Structure after June 20, 2019 to be as follows: Haruo Naito as Representative Corporate Officer and CEO who is currently, Representative Corporate Officer and CEO and Yasushi Okada as Representative Corporate Officer and COO who is currently, Representative Corporate Officer, CTO, Industry Affairs and China Business. Yasushi Okada is to be appointed as Chief Operating Officer. In addition to assisting Chief Executive Officer and being responsible for the Industries Affairs as a representative, Chief Operating Officer takes in charge of China Business, Data Integrity, and supervises Eisai Demand Chain Systems.