Apr 1988 Joined Niigata Kouji Co., Ltd. Apr 2011 Sendai Office Manager, 1st Business Division, the Company Sep 2013 Chiba Office Manager, 2nd Business Division, the Company Jun 2016 Executive Officer, General Manager, Construction Division, the Company Jun 2018 Director, Managing Executive Officer, in charge of Construction Division, General Manager, Construction Division, the Company Jul 2019 Director, Managing Executive Officer, supervising Construction Division, General Manager, Construction Division, the Company Apr 2020 Director, Managing Executive Officer, supervising Construction Division, the Company Jun 2020 Representative Director, President and Executive Officer, the Company (current)

Apr 1983 Joined Koa Oil Co., Ltd. Jun 2012 General Manager, Mariburu Refinery, JX Nippon Oil & Energy Corporation Apr 2016 Representative Director, President, Kawasaki Natural Gas Power Generation Co., Ltd. Apr 2018 Executive Officer, Deputy General Manager, Project Division, JX Engineering Co., Ltd. Apr 2019 Director and Executive Officer (special assignment), JX Engineering Co., Ltd. Jul 2019 Director, Managing Executive Officer, supervising Sales Division, Metals Business Division and Owner's Engineering Business Division, the Company Jun 2020 Director, Managing Executive Officer, supervising Sales Division, Construction Division, Tank Division and Owner's Engineering Business Division, the Company Jun 2021 Director, Managing Executive Officer, supervising Sales Division, Construction Division and Owner's Engineering Business Division, the Company Apr 2023 Director, Vice President and Executive Vice President and Executive Officer, Assistant to the President (Construction Division, Safety and Quality Division), supervising Sales Division and Tank Division, the Company Jun 2025 Representative Director, Executive Vice President and Executive Officer, Assistant to the President (Construction Division, Safety and Quality Division), supervising Sales Division and Tank Division, the Company Apr 2026 Representative Director, Executive Vice President and Executive Officer, Assistant to the President (Sales Division, Tank Division), the Company Jun 2026 Representative Director, Executive Vice President and Executive Officer, Assistant to the President (Sales Division, Tank Division), the Company (current)

Apr 1986 Joined Nippon Kogyo Co., Ltd. Jun 2015 General Manager, Technology Department, JX Nippon Oil & Energy Corporation Jan 2016 General Manager, Technology Department, JX Energy Co., Ltd. Apr 2017 General Manager, Technology Planning Department, Manufacturing Division, JXTG Energy Co., Ltd. Apr 2018 Executive Officer, General Manager, Manufacturing Department, Manufacturing Division, the same company Apr 2020 Managing Executive Officer, supervising Environment and Safety Department, Quality Assurance Department and Renewable Energy Business Division, the same company Jun 2020 Managing Executive Officer, supervising Environment and Safety Department and Quality Assurance Department, ENEOS Holdings, Inc.; Managing Executive Officer, supervising Environment and Safety Department, Quality Assurance Department and Renewable Energy Business Division, ENEOS Corporation Apr 2021 Managing Executive Officer, supervising Manufacturing Department, Construction Department, Technology Planning Department, refineries and plants, ENEOS Corporation Apr 2024 Executive Vice President and Executive Officer, Assistant to the President (Project Business Division, Engineering Division), the Company Jun 2024 Director, Vice President and Executive Vice President and Executive Officer, Assistant to the President (Project Business Division, Engineering Division), the Company Jun 2026 Director, Executive Vice President and Executive Officer, Assistant to the President (Project Business Division, Engineering Division), the Company (current)

Apr 1982 Joined Niigata Kouji Co., Ltd. Jun 2013 Mizushima Office Manager, 3rd Business Division, the Company Apr 2016 Deputy General Manager, 3rd Business Division, the Company Jun 2016 Executive Officer, General Manager, 3rd Business Division, the Company Jun 2018 Managing Executive Officer, General Manager, 3rd Business Division, the Company Apr 2023 Managing Executive Officer, supervising Maintenance Business Division, the Company Apr 2024 Senior Managing Executive Officer, supervising Maintenance Business Division, the Company Jun 2024 Director, Senior Managing Executive Officer, supervising Maintenance Business Division, the Company Apr 2025 Director, Vice President and Executive Vice President and Executive Officer, Assistant to the President (DX Division, Maintenance Business Division), the Company Jun 2026 Director, Executive Vice President and Executive Officer, Assistant to the President (DX Division, Maintenance Business Division), the Company (current)

Apr 1987 Joined Nippon Oil Corporation Jun 2017 General Manager, Legal Department, JXTG Holdings, Inc. Apr 2018 General Manager, Legal Department, JXTG Holdings, Inc. and JXTG Energy Co., Ltd. Apr 2019 Executive Officer, General Manager, General Affairs and Human Resources Department, JX Engineering Co., Ltd. Jul 2019 Executive Officer, General Manager, Legal Department, the Company Jun 2021 Senior Executive Officer, supervising Internal Control Office, Legal Department, Accounting Department and Information Systems Department, the Company Apr 2023 Managing Executive Officer, supervising Internal Control Office, Legal Department and Human Resources Department, the Company Apr 2025 Senior Managing Executive Officer, Assistant to the President (Internal Control Office, Legal Department, General Affairs Department, Human Resources Department, Corporate Planning Department and Accounting Department), the Company Jun 2025 Director, Senior Managing Executive Officer, Assistant to the President (Internal Control Office, Legal Department, General Affairs Department, Human Resources Department, Corporate Planning Department and Accounting Department), the Company Apr 2026 Director, Vice President and Executive Vice President and Executive Officer, Assistant to the President (Corporate Division), the Company Jun 2026 Director, Executive Vice President and Executive Officer, Assistant to the President (Corporate Division), the Company (current)

Apr 1989 Joined Niigata Kouji Co., Ltd. Jun 2016 Chiba Office Manager, 2nd Business Division, the Company Apr 2019 Deputy General Manager, 2nd Business Division, and Chiba Office Manager, the Company Jun 2022 Executive Officer, Deputy General Manager, 2nd Business Division, and Kashima Office Manager, the Company Apr 2023 Executive Officer, General Manager, Construction Division, the Company Apr 2025 Managing Executive Officer, supervising Maintenance Business Division, the Company Jun 2025 Director, Managing Executive Officer, supervising Maintenance Business Division, the Company Apr 2026 Director, Managing Executive Officer, Assistant to the President (Construction Division, Safety and Quality Division), the Company (current)

Apr 1980 Joined Marubeni Corporation Apr 2006 General Manager, Electric Power Coordination Department, Electric Power Division, Marubeni Corporation Apr 2013 Executive Officer, General Manager, Human Resources Department, Marubeni Corporation Apr 2017 Executive Officer, Assistant to CSO, Marubeni Corporation Outside Audit & Supervisory Board Member, Avanti Staff Co., Ltd. Apr 2018 Chairman of the Board, Marubeni Shin-Denryoku Co., Ltd. Apr 2021 Advisor, NSG Holdings Co., Ltd. (current) Jan 2022 Visiting Professor, Kaishi Professional University (current) Visiting Professor, Niigata Agro-Food University (current) Jun 2022 Outside Director of the Company (current) Jul 2022 Chairman of the Board, Shin-Denryoku Niigata Co., Ltd. Feb 2026 Chairman of the Board, Sailar Energy Co., Ltd. (current)

Apr 1985 Joined The Dai-Ichi Kangyo Bank, Ltd. Jan 2008 Manager, Ogu Branch, Mizuho Bank, Ltd. Apr 2010 Manager, Transaction Operations Department, Mizuho Corporate Bank, Ltd. May 2013 Senior Manager, General Affairs and Human Resources Department, the Company Jun 2015 General Manager, Accounting Department, the Company Jun 2016 Executive Officer, General Manager, Accounting Department, the Company Jun 2018 Managing Executive Officer, supervising Accounting Department, General Manager, Internal Control Office and General Manager, Information Systems Department, the Company Jun 2021 Managing Executive Officer, supervising Internal Control Office, Legal Department, General Affairs Department, Human Resources Department, Corporate Planning Department, Accounting Department and Information Systems Department, the Company Apr 2023 Managing Executive Officer, supervising General Affairs Department, Corporate Planning Department and Accounting Department, the Company Apr 2026 Managing Executive Officer, Special Assignments, the Company Jun 2026 Director, Audit and Supervisory Committee Member, the Company

Oct 1982 Joined Chuo Audit Corporation (Chuo Kaikei Jimusho) Mar 1986 Registered as Certified Public Accountant Sep 1993 Partner, Chuo Audit Corporation Jan 1999 Joined Tempstaff Co., Ltd. (currently Persol Tempstaff Co., Ltd.) Jun 2004 Director, Support Division Head and General Manager, Finance Department, Tempstaff Co., Ltd. Jun 2005 Managing Director, Corporate Planning Division Head, Tempstaff Co., Ltd. Oct 2008 Managing Director, Group Corporate Planning Division Head, Temp Holdings Co., Ltd. (currently Persol Holdings Co., Ltd.) May 2010 Director, Kelly Services, Inc. Nov 2012 CEO, TS Kelly Workforce Solutions Co., Ltd. Jun 2015 Outside Director, MDM Co., Ltd. Jul 2019 Outside Director, Audit and Supervisory Committee Member, the Company Jun 2026 Outside Director, Audit and Supervisory Committee Member, MDM Co., Ltd. (current) Jun 2026 Outside Director, Audit and Supervisory Committee Member, the Company (current)

Jul 1998 Associate Professor, Graduate School of Pharmaceutical Sciences, Hokkaido University, Laboratory of Precision Synthetic Chemistry Aug 2009 Visiting Professor, Renmin University of China Apr 2011 Executive Officer, Director of Research Laboratories, Research and Development Division, Koei Chemical Co., Ltd. Apr 2014 Professor, Catalysis Research Center, Hokkaido University; Advisor, Chemical Soft Co., Ltd.; Advisor, Kagashin Global Network Pvt Ltd; Advisor, West Corner Co., Ltd. Apr 2015 Cross-Appointment Fellow, National Institute of Advanced Industrial Science and Technology Jun 2020 Outside Director, Audit and Supervisory Committee Member, the Company (current) Apr 2022 Professor for Research Promotion Support, Catalysis Research Center, Hokkaido University; Representative Director, President, West Corner Co., Ltd. (current) Jun 2022 Professor Emeritus, Hokkaido University (current)

Apr 1983 Registered as Attorney-at-law (Yokohama Bar Association, currently Kanagawa Bar Association) Apr 1983 Joined Mori Law Office Apr 1999 Vice President, Yokohama Bar Association (currently Kanagawa Bar Association) Jan 2010 Director, Shinzen Welfare Association Apr 2010 President, Yokohama Bar Association (currently Kanagawa Bar Association) Apr 2014 Vice President, Japan Federation of Bar Associations Jul 2018 Chairperson, Yokohama City Personnel Commission (current) Jul 2019 Outside Director, Audit and Supervisory Committee Member, the Company (current) Jun 2021 President, Shinzen Welfare Association (current)

Sep 1984 Joined Ota Tetsuzo Certified Public Accountants Office (Ota Tetsuzo Jimusho) Apr 1988 Registered as Certified Public Accountant May 2006 Representative Partner, Shin Nihon Audit Corporation Jul 2008 Partner, Shin Nihon LLC Jul 2022 Opened Umemura Certified Public Accountant Office; Representative (current) Mar 2023 Jun 2026 Outside Audit & Supervisory Board Member, Nippon Seiro Co., Ltd. (current) Jun 2026 Outside Director, Audit and Supervisory Committee Member, the Company (current)