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News Release

FOR IMMEDIATE RELEASE
December 19, 2001

ENVIRONMENTAL AND SOCIAL REPORT 2001
RELEASED BY EISAI CO., LTD.

Tokyo (December 19, 2001) - Eisai Co., Ltd. of Tokyo (President and CEO: Haruo Naito) announced the issuance of the Environmental and Social Report 2001.


The report contains managerial policies with respect to environmental and social issues and summarizes activities and results of environmental efforts in fiscal 2000.


The report introduces the corporate mission, environmental and societal relation policies, the Company's customer satisfaction activities, and other contributions to society in addition to the disclosure of results and data from an environmental perspective.


The Company continues to endeavor to harmonize its activities with the global environment and society.


The Environmental and Social Report 2001 will be posted on the corporate home page ( http://www.eisai.co.jp ) in the near future.



For additional inquiries contact:
Environmental and Safety Department
Eisai Co., Ltd.
4-6-10 Koishikawa, Bunkyo-ku, Tokyo 112-8088
Telephone : 03-3817-5118Facsimile: 03-3811-6992
E-mail : esreport@eisai.co.jp

Eisai Co., Ltd. is a research-based human health care company which discovers, develops and markets products in more than 30 countries. Through a global network of research facilities, manufacturing sites and marketing subsidiaries, Eisai actively participates in all aspects of the worldwide health care system. The company reported sales of over $2.9 billion in 2000 with approximately 14 percent of sales spent for research and development.