For Immediate Release

Company name: DAIICHI SANKYO COMPANY, LIMITED
Representative: Takashi Shoda, President and CEO
(Code no.: 4568, First Section of Tokyo, Osaka and Nagoya Stock Exchanges)
Please address inquiries to Toshiaki Sai, Corporate Officer,
Vice President, Corporate Communications Department
Telephone: +81-3-6225-1126 (Public Relations)
+81-3-6225-1125 (Investor Relations)
http://www.daiichisankyo.com/

Daiichi Sankyo Announces Executive Changes at its Subsidiary Companies

Tokyo, Japan (May 12, 2010) - Daiichi Sankyo Company, Limited has announced the executives of its subsidiary companies who will be changed as of the annual shareholder meetings to be held in June.

1. DAIICHI SANKYO HEALTHCARE CO., LTD.

Candidate for new Kansayaku (Statutory Auditor)
Hideo Ishibashi  (Current Senior Manager on loan from Daiichi Sankyo Co., Ltd.)

Yoshikazu Yokomaku (current Member of the Board) and Hisao Koshino (current Kansayaku [Statutory Auditor]) will step down to become Corporate Advisers at Daiichi Sankyo Healthcare Co., Ltd.

2. DAIICHI SANKYO CHEMICAL PHARMA CO., LTD.

Hiroaki Sasaki (current Member of the Board) will step down to become Corporate Adviser at Daiichi Sankyo Chemical Pharma Co., Ltd.

3. DAIICHI SANKYO LOGISTICS CO., LTD.

Shigekazu Yanai (current Member of the Board) and Shoutaro Kuramochi (current Member of the Board) will step down to become Corporate Advisers at Daiichi Sankyo Logistics Co., Ltd.

4. DAIICHI SANKYO RD ASSOCIE CO., LTD.

Hirofumi Terasawa (current Member of the Board) and Kenichi Sudo (current Member of the Board) will step down to become Corporate Advisers at Daiichi Sankyo RD Associe Co., Ltd.