FOR IMMEDIATE RELEASE
No.06-33
July 31, 2006

At the Board of Directors Meeting held in July 31, 2006, the Board of Directors Meeting of Eisai Co., Ltd. (Chair: Tadashi Kurachi) resolved to continue "Policy for Protection of the Company's Corporate Value and Common Interests of Shareholders" which was proposed by the Independent Committee of Outside Directors.

The policy was proposed by the Independent Committee consisted of Outside Directors in the Board of Directors Meeting held in February 28, 2006 and was implemented. The policy shall be deliberated to maintain, review or abandon by the Independent Committee of Outside Directors which is newly elected at the Board of Directors Meeting following the Ordinary General Meeting of Shareholders.

After the 94th Ordinary General Meeting of Shareholders held on June 23rd, as continuation of the actual contents of the policy was carried unanimously in the Independent Committee of Outside Directors consisted of seven members including two newly-elected members, the continuation of the policy was proposed to the board of directors held on July 31st, 2006.

Please find the further information on our website below.

(News release on February 28, 2006) 'Policy for Protection of the Company's Corporate Value and Common Interests of Shareholders' URL: http://www.eisai.co.jp/enews/enews200608.html

Contacts:
Corporate Communications Department
Eisai Co., Ltd.
TEL: 81-3-3817-5120