For Immediate Release

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

DAIICHI SANKYO Notice on Organizational Restructuring as of October 1, 2008

Tokyo, August 26, 2008 - DAIICHI SANKYO COMPANY, LIMITED announced plans for organizational restructuring.

1. Overview of organizational restructuring

 I. Sales & Marketing Division
 a) Creation of Product Marketing Department
- The Product Marketing Department will consolidate the roles of drug development, evaluation of in-licensing candidates, pre-launch market research and strategic planning as well as the strategic planning for each product category and act in a policy promotion role.
Accordingly, the Marketing Department will be phased out.

 b) Creation of a new Promotion Management Department
- A new Promotion Management Department* will be created to oversee both the coordination and advancement of market strategy policy and product policy. The new department will also carry out the following functions: development of market strategies,management and deployment of resources, operation and maintenance of IT infrastructure and the development of product seminars. Accordingly, the old Promotion Management Department will be phased out.
*The Japanese name for the new department will be changed.

 c) Phase out of Career Development Department
- The Career Development Department will be phased out and its various roles will be relegated to departments within the Sales & Marketing Division.