February 10, 2015

To Our Shareholders:Company name: Mitsubishi Materials Corporation
Representative: Hiroshi Yao, President
Stock code: 5711
Shares listed: Tokyo Stock Exchange
For further information please contact:
Naoya Sasaki,Manager, Corporate Communications & IR Dept.
Tel: +81-3-5252-5206
Notice Regarding Changes in Directors

Mitsubishi Materials Corporation (MMC) resolved the following changes at the Board ofDirectors meeting on Feburary 10, 2015.

1. Reason for Changes
Modification of management system.
2. Description of Changes(1) Changes to President (effective as of April 1, 2015)
Name: Hiroshi Yao
New Title: Chairman (Representative Director)
Current Title: President (Representative Director)
Name: Akira Takeuchi
New Title: President (Representative Director)
Current Title: Executive Vice President (Representative Director)(2) New Director (effective as of June 26, 2015)*
Name: Nobuo Shibano
New Title: Managing Director (Representative Director)* Official decisions to be made at the 90th Annual General Meeting of Shareholders andBoard of Directors meeting, both to be held on June 26, 2015.
(3) Retiring Directors (effective as of April 1, 2015)
Name: Akihiko IdeNew Title: Senior Advisor
Current Title: Chairman (Representative Director)
Name: Masaru Aramaki
New Title: Director
Current Title: Managing Director (Representative Director)

3. Career Histories of New/Former President and Representative Directors (Elect)Name, Date of
Birth
Hiroshi Yao
August 2, 1946

Akira
Takeuchi
December 4,
1954
Nobuo Shibano
March 13,
1957

Career History
April 1969: Entered MMC
June 2004: Managing Director
June 2006: Executive Vice President;
President, Universal Can Corporation
April 2008: President, Mitsubishi Aluminum Co., Ltd.
June 2010: President (current)
April 1977: Entered MMC
April 2009: Senior Executive Officer;
General Manager, Legal & General Affairs Div.
June 2009: Managing Director
April 2014: Executive Vice President (current)
April 1980: Entered Mitsubishi Mining & Cement Co., Ltd.
April 2006: General Manager, Accounting Dept., Finance &Accounting Div.
June 2009: General Manager, Finance Dept., Finance &Accounting Div.
June 2010: General Manager, Finance & Accounting Div.
June 2011: Executive Officer;
General Manager, Finance & Accounting Div.
June 2012: Executive Officer;
Vice President, Electronic Materials &Components Company;
General Manager, Planning & Administration
Dept. (current)
April 2015: Senior Executive Officer (planned)

MMC
Shares Held

255,335

93,504

31,575

As of February 10, 2015

Personal History
Name: Akira Takeuchi
Date of Birth: December 4, 1954 (60 years)
Place of Birth: Osaka Prefecture
Education:
March 1977: Graduated from Kyoto University,
Department of Economics, Faculty ofEconomics
December 1990: Graduated from Duke University（USA) of Law (LL.M)
Career:April 1977: Entered Mitsubishi Metal Corporation(name changed to Mitsubishi Materials
Corporation in December 1990)
June 2003: General Manager, General Affairs Dept.,
General Affairs Div.
December 2004: General Manager, General Affairs Div.
June 2006: Executive Officer
April 2009: Senior Executive Officer
June 2009: Managing Director
Assistant to the President (current)
April 2014: Executive Vice President (current)