Directors

Director

  • photo
    Chair of the Board
    Naoki Ono

    Personal History

    Naoki Ono
    Chair of the Board

    Number of Company shares held: 64,845

    (Of which, the number of shares to be distributed
    based on the stock-based compensation plan is 51,502 shares.)

    *As of May 30, 2025

    Apr. 1979 Joined Mitsubishi Mining & Cement Co., Ltd.
    Jun. 2014 Managing Director of the Company
    President, Cement Company
    Apr. 2016 Executive Vice President
    President, Cement Company
    Jun. 2016 Director; Executive Vice President
    President, Cement Company
    Apr. 2017 Director; Executive Vice President
    General Manager, Corporate Strategy Div.
    Jun. 2018 President
    Jun. 2019 Director; Chief Executive Officer
    Apr. 2021 Director; Chief Executive Officer; CEO*
    Apr. 2025 Director (to present)
    * Chief Executive Officer
  • photo
    Director
    (Outside Director)
    Tatsuo Wakabayashi

    Personal History

    Tatsuo Wakabayashi
    Director (Outside Director)

    Number of Company shares held: 7,275

    *As of May 30, 2025

    Apr. 1977 Joined Mitsubishi Trust Bank (currently Mitsubishi UFJ Trust and Banking Corporation)
    Jun. 2008 Managing Director, Mitsubishi UFJ Trust and Banking Corporation (MUTB)
    Jun. 2009 Senior Managing Director, MUTB
    Jun. 2010 Senior Managing Director and Chief Executive, Trust Assets Division, MUTB; Managing Officer and Group Head, Integrated Trust Assets Business Group, Mitsubishi UFJ Financial Group, Inc. (MUFG)
    Jun. 2011 Senior Managing Director, MUTB; Director, MUFG
    Apr. 2012 President, MUTB; Director, MUFG
    Apr. 2013 President, MUTB; Deputy Chairman, MUFG
    Dec. 2013 President, CEO and Chairman, MUTB; Deputy Chairman, MUFG
    Jun. 2015 President, CEO and Chairman, MUTB; Director and Deputy Chairman, MUFG
    Apr. 2016 Chairman, MUTB; Director, MUFG
    Jun. 2016 Chairman, MUTB
    Jun. 2018 Part time engagement, Audit & Supervisory Board Member of the Company
    Jun. 2019 Director of the Company (to present)
    Jun. 2020 Senior Advisor, MUTB (to present)

    <Principal Concurrent Positions>
    Senior Advisor, Mitsubishi UFJ Trust and Banking Corporation
    Outside Director, Mitsubishi Logistics Corporation

  • photo
    Director
    (Outside Director)
    Koji Igarashi

    Personal History

    Koji Igarashi
    Director (Outside Director)

    Number of Company shares held: 4,639

    *As of May 30, 2025

    Apr. 1980 Joined Ajinomoto Co., Inc.
    Apr. 2002 Senior Vice President, Ajinomoto U.S.A., Inc.
    Jun. 2007 Executive Officer; Vice President, Amino Acids Company, Ajinomoto Co., Inc.
    Jun. 2009 Executive Officer; General Manager, Corporate Planning Div.
    Jun. 2011 Member of the Board, Corporate Vice President
    Jun. 2013 Member of the Board, Corporate Senior Vice President
    Jun. 2017 Senior Advisor (resigned June 2020)
    Jun. 2020 Director of the Company (to present)
  • photo
    Director
    (Outside Director)
    Kazuhiko Takeda

    Personal History

    Kazuhiko Takeda
    Director (Outside Director)

    Number of Company shares held: 2,868

    *As of May 30, 2025

    Apr. 1983 Joined Sony Corporation (currently Sony Group Corporation)
    Oct. 2001 Vice President in charge of Accounting, Sony Ericsson Mobile Communications Inc.
    Apr. 2006 Executive Officer; CFO, Sony NEC Optiarc Inc.
    Aug. 2008 Senior Vice President in charge of Corporate Management and Accounting, Sony Europe Ltd.(currently Sony Europe B.V.)
    Oct. 2013 Vice President; Senior General Manager of Corporate Planning & Control Division, Sony Corporation
    Jun. 2015 Senior Vice President
    Corporate Executive in charge of Corporate Planning & Control and Accounting
    Jan. 2018 Senior Vice President
    Corporate Executive in charge of Corporate Planning & Control and Accounting; CIO
    Jul. 2018 Senior Vice President
    Deputy President and Chief Financial Officer, Sony Interactive Entertainment LLC
    Jul. 2021 Executive Alumnus, Sony Group Corporation (to present)
    Jun. 2022 Director of the Company (to present)

    <Principal Concurrent Positions>
    Outside Director, Sojitz Corporation

  • photo
    Director
    (Outside Director)
    Rikako Beppu

    Personal History

    Rikako Beppu
    Director (Outside Director)

    Number of Company shares held: 0

    *As of May 30, 2025

    Aug. 1992 Joined Slaughter and May
    Sep. 1994 Joined Simmons & Simmons
    Oct. 1994 Registered as a member of The Law Society, England and Wales
    May 1997 Seconded to Nagashima & Ohno (currently Nagashima Ohno & Tsunematsu)
    May 1998 Seconded to Export-Import Bank of Japan (currently Japan Bank for International Cooperation)
    Sep. 2001 Partner, Simmons & Simmons
    Oct. 2001 Registered as a member of Daini Tokyo Bar Association (registered foreign lawyer)
    Sep. 2008 Partner, Lovells (currently Hogan Lovells)
    Oct. 2017 Partner, Squire Patton Boggs Tokyo (Foreign Law Joint Business)
    Jun. 2022 Director of the Company (to present)
    Jun. 2024 Counsel, Squire Patton Boggs Tokyo (Foreign Law Joint Business) (to present)

    <Principal Concurrent Positions>
    Counsel, Squire Patton Boggs Tokyo (Foreign Law Joint Business)
    Audit & Supervisory Board Member (Outside), Toyota Tsusho Corporation

  • photo
    Director
    (Outside Director)
    Hatsunori Kiriyama

    Personal History

    Hatsunori Kiriyama
    Director (Outside Director)

    Number of Company shares held: 967

    *As of May 30, 2025

    Apr. 1985 Joined P&G Far East Inc. (currently The P&G Japan Limited)
    Jul. 2002 Vice President and Director of Sales Department, Northeast Asia, The Procter & Gamble Company
    Jul. 2005 Vice President, Global Skincare
    Jul. 2007 President and Representative Director, The P&G Japan Limited
    Jul. 2012 President-Asia, The Procter & Gamble Company
    Sep. 2017 Representative Director, forGL Inc. (to present)
    Jun. 2024 Director of the Company (to present)

    <Principal Concurrent Positions>
    Representative Director and CEO, forGL. Co.,Ltd.
    Outside Director, Calbee, Inc.

  • photo
    Director
    (Outside Director)
    Nozomi Sagara

    Personal History

    Nozomi Sagara
    Director (Outside Director)

    Number of Company shares held: 644

    *As of May 30, 2025

    Apr. 1989 Joined Ministry of International Trade and Industry (currently Ministry of Economy, Trade and Industry (METI))
    Jul. 2011 General Manager, Environment Department, Incorporated Administrative Agency New Energy and Industrial Technology Development Organization (currently National Research and Development Agency New Energy and Industrial Technology Development Organization)
    Apr. 2014 General Manager, Stockpile Planning Department, Incorporated Administrative Agency Japan Oil, Gas and Metals National Corporation (currently Incorporated Administrative Agency Japan Organization for Metals and Energy Security)
    Jul. 2015 Director, Information Systems and Welfare Division, Minister's Secretariat, METI
    Jul. 2017 Director-General, Tohoku Bureau of Economy, Trade and Industry
    Dec. 2020 Joined Sumitomo Chemical Co., Ltd.
    Apr. 2021 Associate Officer, Responsible for Sustainability Dept. and Responsible Care Dept. (resigned June 2021)
    Jun. 2024 Director of the Company (to present)
  • photo
    Director
    (Outside Director)
    Ichiro Sasaki

    Personal History

    Ichiro Sasaki
    Director (Outside Director)

    Number of Company shares held: 0

    *As of May 30, 2025

    Apr. 1983 Joined Brother Industries, Ltd.
    Jan. 2005 Managing Director, Brother U.K. Ltd.
    Apr. 2008 General Manager of NID Research & Development Dept., Brother Industries, Ltd.
    Apr. 2009 Executive Officer
    Apr. 2013 Managing Executive Officer
    Jun. 2014 Director & Managing Executive Officer
    Jun. 2016 Representative Director & Managing Executive Officer
    Apr. 2017 Representative Director & Senior Managing Executive Officer
    Jun. 2018 Representative Director & President
    Jun. 2024 Director & Vice Chairman (to present)

    <Principal Concurrent Positions>
    Advisor, Brother Industries, Ltd.

  • photo
    Director,
    Chief Executive Officer
    (Representative Executive Officer)
    Tetsuya Tanaka

    Personal History

    Tetsuya Tanaka
    Director,
    Chief Executive Officer (Representative Executive Officer)

    Number of Company shares held: 19,617

    (Of which, the number of shares to be distributed
    based on the stock-based compensation plan is 19,055 shares.)

    *As of May 30, 2025

    Apr. 1986 Joined the Company
    Apr. 2020 Managing Executive Officer
    President, Metalworking Solutions Company
    Apr. 2023 Managing Executive Officer; CGO*1
    Apr. 2024 Managing Executive Officer; CSuO*2
    Apr. 2025 Chief Executive Officer; CEO (to present)
    *1 Chief Governance Officer
    *2 Chief Sustainability Officer
  • photo
    Director,
    Managing Executive Officer
    Kayo Hirano

    Personal History

    Kayo Hirano
    Director,
    Managing Executive Officer

    Number of Company shares held: 0

    *As of May 30, 2025

    Apr. 2004 Joined Sakura & Co.
    Sep. 2004 Joined Shinnihon Audit Firm (currently Ernst & Young ShinNihon LLC)
    Mar. 2008 Joined Morgan Stanley Securities Co., Ltd. (currently Morgan Stanley MUFG Securities Co., Ltd.)
    Jan. 2009 Joined ShinNihon LLC (currently Ernst & Young ShinNihon LLC)
    Sep. 2013 Joined LIXIL Corporation
    Jan. 2017 Transferred to LIXIL Group Corporation (currently LIXIL Corporation)
    Apr. 2021 Senior Vice President; Leader, Investor Relations Office
    Oct. 2022 Senior Vice President; Leader, Investor Relations Office and Leader, Finance & Treasury Corporate Accounting & Treasury/Tax
    Apr. 2024 Joined the Company
    General Manager, Accounting & Finance Div.
    Jun. 2024 General Manager, Accounting & Finance Div.
    General Manager, Financial Controlling Dept., Accounting & Finance Div.
    Apr. 2025 Managing Executive Officer; CFO (to present)*
    *Chief Financial Officer

Nomination Committee

  • Tatsuo Wakabayashi*1 (Chair)
  • Koji Igarashi*1
  • Rikako Beppu*1

Audit Committee

  • Kazuhiko Takeda*1 (Chair)
  • Hatsunori Kiriyama*1
  • Nozomi Sagara*1
  • Naoki Ono

Remuneration Committee

  • Koji Igarashi*1 (Chair)
  • Tatsuo Wakabayashi*1
  • Rikako Beppu*1

Sustainability Committee

  • Nozomi Sagara*1 (Chair)
  • Hatsunori Kiriyama*1
  • Ichiro Sasaki*1

*1 Outside Director

Executive Officer

Chief Executive Officer*2
(Representative Executive Officer) 		Tetsuya Tanaka CEO
Responsible for General Operation of the Company, Internal Audit, Sustainability Promotion, Mitsubishi Materials Europe B.V.
Managing Executive Officer*2 Kayo Hirano CFO
Responsibilities of the CFO, Responsible for Procurement & Logistics
Managing Executive Officer Makiko Nogawa CHRO
Responsibilities of the CHRO, Responsible for General Affairs, Corporate Communications, Legal & Compliance, Business Transformation
Managing Executive Officer Toshinori Ishii CTO
Responsibilities of the CTO, Responsible for Renewable Energy Business
Managing Executive Officer
(Representative Executive Officer) 		Nobuhiro Takayanagi President, Metals Company
Managing Executive Officer Zhang Shoubin President, Advanced Products Company
Managing Executive Officer Kazuo Ohara President, Metalworking Solutions Company

*2 Executive Officer Tetsuya Tanaka and Kayo Hirano concurrently serve as Directors.

< Abbreviation >

CEO
Chief Executive Officer
CFO
Chief Financial Officer
CHRO
Chief Human Resources Officer
CTO
Chief Technical Officer

< Sustainability Promotion and Responsibilities of the CxO >

Sustainability Promotion
Sustainability Management (including Safety, Environment & Quality,
Sustainable Development, Environmental Stewardship Center)
Responsibilities of the CFO
Accounting, Finance, Financial Controlling, Investor Relations
Responsibilities of the CHRO
Global Human Resources, Human Resources & Industrial Relations
Responsibilities of the CTO
Monozukuri and R&D Strategy, DX Promotion, System Strategy

(As of June 25, 2025)