May 12, 2010

Mitsubishi Tanabe Pharma Corporation

Change of Representative Directors, Directors, and Organization
Osaka, Japan, May 12, 2010 ---- Today, Mitsubishi Tanabe Pharma Corporation (President& CEO, Michihiro Tsuchiya) announced that at the today's meeting of the Board ofDirectors, the Company reached a tentative decision regarding change ofRepresentative Directors, as noted below. As for changes of Directors, including
Representative Director, the Company will decide officially at the third annual general
meeting of shareholders, to be held on June 22 this year, and at the meeting of theBoard of Directors, to be held immediately after the annual general shareholders’meeting.

1. Change of Representative Directors (as of June 22, 2010)
1) Change of Representative Directors
New Position

Name

Representative Director,
Managing Executive Officer,
International Strategy &Operation, General Managerof International BusinessCorporate advisor

Current Position

Kuniaki Kaga

Board Director, Mitsubishi Tanabe Pharma
Corporation
Executive Officer, Mitsubishi ChemicalHoldings Corporation

Kunihiko Shimojuku

Representative Director, Executive Vice
President2) Curriculum Vitae of New Representative Director Candidate
Name:

Kuniaki Kaga

Date of Birth:

September 1, 1951Education:

Graduate from Faculty of Pharmaceutical Sciences,
The University of Tokyo

Number of the Company's shares owned; 1,000 shares

Career SummaryApril 1975

Joined Mitsubishi Chemical Industries Limited(In October 1994, Mitsubishi Chemical Industries Limited merged with
Mitsubishi Petrochemical Co., Ltd. and was renamed Mitsubishi
Chemical Corporation)

June 2004

Deputy Director, Head of Healthcare Planning Dept., Mitsubishi
Chemical Corporation

October 2005

Deputy Director, Head of Healthcare Strategy Office, Mitsubishi
Chemical Holdings Corporation

June 2006

Executive Officer, Head of Healthcare Strategy Office, Mitsubishi
Chemical Holdings CorporationJune 2009

Executive Officer, Head of Healthcare Strategy Office, Mitsubishi
Chemical Holdings Corporation
Board Director, Mitsubishi Tanabe Pharma CorporationApril 2010

Executive Officer, Mitsubishi Chemical Holdings Corporation
Board Director, Mitsubishi Tanabe Pharma Corporation

June 2010

To be appointed Representative Director, Managing Executive Officer,
International Strategy & Operation,
General Manager of International Business, Mitsubishi Tanabe Pharma
Corporation

This career summary does not include another post in companies other than Mitsubishi Tanabe Pharma before
his appointment as Representative Director of the Company in June 2010.

2. Organizational Changes (As of June 22, 2010)
1) Corporate
The Company will establish the Medway Issue Management Office under the directcontrol of the President, in order to drive and manage the business improvement
plan to regain the trust of society against the Medway problem.
The Company separates Secretary Group from the Administration Department forreorganization into the Secretary Office, under the direct control of the President,with the aim of enhancing secretariat functions.

-2-3. Board Candidates (as of June 22, 2010)
1) Newly appointed directors
New Position
Board Director, Managing
Executive Officer in charge ofFinance & Accounting,Information Systems, andEnvironment & Safety,
General Manager of Finance& Accounting Department

NameKenkichi Kosakai

Current Position

Executive Officer,
General Manager of Finance & Accounting
Department

2) Changes of business in charge
New Position

Name

Board Director, Executive
Officer in charge of Global
Product Strategy, Business
Development & Licensing, and Masayuki Mitsuka
Intellectual Property,
General Manager of Global
Product Strategy Department
Board Director, Executive
Officer in charge of Corporate
Strategic Planning, Medical
Intelligence, Human
Resources, and Corporate
Communications,
General Manager ofCorporate Strategic Planning
Department

Takashi Kobayashi

Current Position

Board Director, Executive Officer
General Manager of Global ProductStrategy Department

Board Director, Executive Officer
General Manager of Corporate Strategic
Planning Department

3) Retiring board directors
New Position

NameCurrent Position

Corporate Advisor

Natsuki Hayama

Board Director and Corporate Advisor

Corporate Advisor

Takeshi Komine

Board Director and Corporate Advisor〈〈For Details, Contact the Following Section〉〉
Corporate Communications Dept., Mitsubishi Tanabe Pharma Corporation
Tel +81-6-6205-5211-3-