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Corporate Information
Investor Relations
Corporate Governance
Executive Members
Outside Directors
Outside Directors
As of June 17, 2026
Tsutomu Tannowa

Outside Director, Independent Director
[Date of Birth]
October 26, 1951
- Apr. 2026
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Director of Mitsui Chemicals, Inc. (Current position)
- Jun. 2023
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Outside Director of TOKYO GAS CO.,LTD (Current position)
- Apr. 2023
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Director, Chairperson of the Board of Mitsui Chemicals, Inc.
- Jun. 2022
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Outside Director (Current position)
- Apr. 2020
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Representative Director, Chairperson of the Board of Mitsui Chemicals, Inc.
- Apr. 2014
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Representative Director, Member of the Board, President & CEO of Mitsui Chemicals, Inc.
- Apr. 2013
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Member of the Board, Senior Managing Executive Officer of Mitsui Chemicals, Inc.
- Jun. 2012
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Member of the Board, Managing Executive Officer of Mitsui Chemicals, Inc.
- Apr. 2010
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Managing Executive Officer of Mitsui Chemicals, Inc.
- Apr. 2007
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Executive Officer of Mitsui Chemicals, Inc.
Junko Okawa

Outside Director, Independent Director
[Date of Birth]
August 31, 1954
- Jun. 2023
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Outside Director of Tokyo Electric Power Company Holdings, Inc. (Current position)
- Jun. 2022
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Outside Director (Current position)
Outside Director of Asahi Broadcasting Group Holdings Corporation (Current position)
- Jun. 2020
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Outside Director of The Shoko Chukin Bank, Ltd.
- Apr. 2019
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External Affairs Representative of Japan Airlines Co., Ltd.
- Jun. 2018
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Vice Chairperson of Japan Airlines Co., Ltd.
- Apr. 2016
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Representative Director, Senior Managing Executive Officer of Japan Airlines Co., Ltd.
- Jun. 2013
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Director, Senior Managing Executive Officer of Japan Airlines Co., Ltd.
- Apr. 2013
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Senior Managing Executive Officer of Japan Airlines Co., Ltd.
- Feb. 2012
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Managing Executive Officer of Japan Airlines Co., Ltd.
- Feb. 2010
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Executive Officer of Japan Airlines Co., Ltd.
Kyoko Okumiya

Outside Director, Independent Director
[Date of Birth]
June 2, 1956
- Aug. 2023
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Director of Japan Corporate Governance Network (Current position)
- Jun. 2023
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Outside Director (Current position)
Outside Director of ASAHI KOGYOSHA CO., LTD. (Current position)
- Jun. 2018
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Outside Director of The Bank of Yokohama, Ltd.
- Apr. 2018
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Member of Administrative Advisory Council, School of Legal and Political Studies of The University of Tokyo
- Jul. 2017
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Chairperson of The Labour Policy Council Equal Employment Opportunity Subcommittee
- Jun. 2014
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Outside Audit & Supervisory Board Member of NEC Corporation
Outside Director of MORINAGA MILK INDUSTRY CO., LTD.
- Aug. 2003
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Member of Audit Committee of Kawasaki City
- Sep. 2000
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Partner, Tanabe & Partners (Current position)
- Apr. 1984
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Registered as attorney at law
Makoto Ando

Outside Director, Independent Director
[Date of Birth]
February 16, 1952
- Jun. 2024
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Outside Director (Current position)
- Apr. 2024
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Programme Director, Fundamental Technologies for Sustainable Efficient Radio Wave Use R&D Project of Ministry of Internal Affairs and Communications (Current position)
- Jan. 2022
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Chairperson of Japan Coordinating Council for Wireless Power Transfer (Current position)
- Jun. 2020
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Programme Director, Strategic Information and Communications R&D Promotion Programme of Ministry of Internal Affairs and Communications (Current position)
- Apr. 2018
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Director (research, information) of Independent Administrative Agency National College of Technology
- Apr. 2017
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Emeritus Professor of Tokyo Institute of Technology (Currently Institute of Science Tokyo) (Current position)
- Apr. 2015
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Director, Executive Vice President for Research Tokyo Institute of Technology (Currently Institute of Science Tokyo)
- Apr. 1995
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Professor, Department of Electrical and Electronic Engineering, School of Engineering of Tokyo Institute of Technology (Currently Institute of Science Tokyo)
Junichiro Ikeda

Outside Director, Independent Director
[Date of Birth]
July 16, 1956
- Jun. 2026
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Outside Director (Current position)
- Apr. 2026
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Director of Mitsui O.S.K. Lines, Ltd. (Current position)
- Jun. 2024
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Outside Director of YAMATO HOLDINGS CO., LTD. (Current position)
- Apr. 2023
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Director, Chairman of the Board of Mitsui O.S.K. Lines, Ltd.
- Apr. 2021
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Representative Director, Chairman Executive Officer of Mitsui O.S.K. Lines, Ltd.
- Jun. 2015
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Representative Director, President, and Chief Executive Officer of Mitsui O.S.K. Lines, Ltd.
- Jun. 2013
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Director and Senior Managing Executive Officer of Mitsui O.S.K. Lines, Ltd.
- Jun. 2010
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Managing Executive Officer of Mitsui O.S.K. Lines, Ltd.
- Jun. 2008
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Executive Officer of Mitsui O.S.K. Lines, Ltd.
- Jun. 2007
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General Manager of Liner Division of Mitsui O.S.K. Lines, Ltd.
- Jun. 2004
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General Manager of Human Resources Division of Mitsui O.S.K. Lines, Ltd.
- Apr. 1979
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Joined Osaka Mitsui O.S.K. Lines, Ltd. (Currently Mitsui O.S.K. Lines, Ltd.)