Apr 2006 Joined Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.); Chief, Business Development Dept., Machinery & Systems Business Headquarters Jul 2011 Group Leader, Planning Group, Planning & Administration Dept., Mitsui E&S Co., Ltd. Apr 2018 Deputy Manager, Planning & Administration Dept., Mitsui E&S Machinery Co., Ltd. (now Mitsui E&S Co., Ltd.) Apr 2019 Director, Strategic Planning Office, Mitsui E&S Machinery Co., Ltd. (now Mitsui E&S Co., Ltd.) Apr 2020 Executive Officer, Director, Strategic Planning Office, Mitsui E&S Co., Ltd. Apr 2021 Director and Executive Officer; General Manager, Strategic Planning Dept.; in charge of Sales Coordination Office, Hydrogen Business Strategy Office and DX Promotion Office, Mitsui E&S Co., Ltd. Apr 2022 CCO, Director and Executive Officer; General Manager, Planning & Administration Dept.; in charge of Environmental & Safety Management Office, Internal Audit Office and Export Control Office, Mitsui E&S Co., Ltd. Jun 2022 Director (part-time), the Company Apr 2023 Assistant to General Manager, Growth Business Promotion Division, Mitsui E&S Co., Ltd. Jun 2023 Resigned from Mitsui E&S Co., Ltd. Jun 2023 Representative Director, President and CEO, the Company; Vice Chair, Nomination and Compensation Committee (current)

Nov 2002 Joined Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.) Jun 2010 Audit & Supervisory Board Member (part-time), Mitsui Zosen Environmental Engineering Co., Ltd. (now JFE Environmental Technology Co., Ltd.) May 2014 Chief, Corporate Planning Dept., Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.) Aug 2017 Chief, Finance & Accounting Dept., Mitsui E&S Co., Ltd. Apr 2018 Transferred to Mitsui E&S Business Service Co., Ltd. (now Mitsui E&S Co., Ltd.) following company split; Chief, Finance & Accounting Services Dept. Jun 2019 Chief, Tamano Branch Office, Finance & Accounting Services Dept., Mitsui E&S Business Service Co., Ltd. Apr 2021 Audit & Supervisory Board Member (part-time), Mitsui Zosen Tokki Engineering Co., Ltd. Apr 2023 Seconded to the Company; Executive Officer; in charge of Corporate Planning Office and Finance & Accounting Dept. Jun 2023 Director and Executive Officer; in charge of Corporate Planning Office and Finance & Accounting Dept. Apr 2025 Director and Executive Officer; in charge of Corporate Planning Office and Finance & Accounting Dept.; General Manager, Corporate Planning Office (current)

Apr 1994 Joined the Company; assigned to Engineering Dept. Apr 2002 Assigned to Materials Section, First Production Dept. Apr 2009 Section Chief, Materials Section, Production Management Dept. Apr 2010 Concurrently Section Chief, Production Management Section Apr 2011 Deputy Manager, Production Management Dept. May 2015 General Manager, Production Management Dept., Production Division Mar 2019 General Manager, Production Dept. Jul 2020 Executive Officer; in charge of Production Dept. and Production Management Dept.; General Manager, Production Dept. Apr 2023 Executive Officer; in charge of After-Sales Service Dept.; General Manager, After-Sales Service Dept. Jun 2025 Director and Executive Officer; in charge of After-Sales Service Dept.; General Manager, After-Sales Service Dept.; Member, Nomination and Compensation Committee (current)

Apr 1993 Joined Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.); Design Dept., Energy Plant Business Division Feb 2000 Seconded to Mizo Technical Service Co., Ltd.; Gas Turbine PG Technology Dept. Apr 2015 Returned to Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.); Group Leader, Plant Machinery & Gas Turbine Procurement Group, Technical Service Business Office, Service Center Apr 2016 Seconded to Mizo Technical Service Co., Ltd.; General Manager, Technical Dept., Plant Machinery Service Business Division Apr 2017 General Manager, Plant Machinery Service Business Division and Sales Dept., Mizo Technical Service Co., Ltd. Apr 2018 General Manager, Plant Machinery Service Dept. and Sales Group Leader, Technical Service Business Division, Mitsui E&S Machinery Co., Ltd. (now Mitsui E&S Co., Ltd.) Apr 2022 General Manager, Sales Dept., Industrial Machinery Service Business Division, Mitsui E&S Co., Ltd. Apr 2023 Group Leader, Electrical Control Systems Group, Digital Solutions Dept., Growth Business Promotion Division, Mitsui E&S Co., Ltd. Jan 2025 General Manager, Administration Dept., Growth Business Promotion Division, Mitsui E&S Co., Ltd. (current) Jun 2025 Director (part-time), the Company (current)

Apr 1983 Joined Osaka Regional Taxation Bureau Jul 2000 Corporate Division Spin-off Project Team, Corporate Taxation Division, National Tax Agency (in charge of reorganization tax system notices); concurrently Investigation Division, Examination & Investigation Dept. Jan 2002 Corporate Tax System Planning Office, Corporate Tax Division, Ministry of Finance (in charge of consolidated tax filing system legislation); concurrently Investigation Division, Examination & Investigation Dept., National Tax Agency Jul 2009 International Examination Officer, Examination Division No. 1, Osaka Regional Taxation Bureau Jul 2012 Assistant Section Chief, Examination Planning Division, Examination Division No. 1, Osaka Regional Taxation Bureau Aug 2013 Registered as Certified Tax Accountant; opened Hidetoshi Nakatsuka Tax Accountant Office, Representative (current) Apr 2014 Special Professor, Graduate School of Law, Himeji Dokkyo University Dec 2018 Outside Audit & Supervisory Board Member, Tiger Corporation (current) May 2020 Outside Director (Audit and Supervisory Committee Member), MORESCO Corporation Jun 2023 Director and Member, Nomination and Compensation Committee (part-time), the Company (current)

Apr 1983 Joined Hasegawa Komuten Co., Ltd. (now Haseko Corporation); assigned to Condominium Division Oct 1990 Sales Division Leader, Haseko Arvest Co., Ltd. (formerly Condominium Division, Hasegawa Komuten Co., Ltd.) Apr 2003 Manager, Planning Dept., Haseko Arvest Co., Ltd. Apr 2006 Section Chief, Human Resources Development Dept., Haseko Life Kansai Co., Ltd. Oct 2011 General Manager, Business Promotion Dept., Haseko Life Co., Ltd. Apr 2013 Executive Officer, Business Promotion Dept., Haseko Life Co., Ltd. Apr 2016 Director and Managing Executive Officer, Condominium Management Division and Business Promotion Dept., Tokyo Branch, Haseko Life Co., Ltd. Oct 2017 Executive Officer; in charge of Corporate Planning, Legal and Contract Depts., Haseko Management Holdings Co., Ltd. Apr 2018 Managing Executive Officer; in charge of Corporate Planning, Legal, Contract, East-West Risk Management and Systems Coordination Depts., Corporate Management Division, Haseko Management Holdings Co., Ltd. May 2019 Resigned from Haseko Management Holdings Co., Ltd. Jul 2019 Opened Mayumi Teramoto Social Insurance Labor Consultant Office, Representative (current) Mar 2020 Outside Director, Miki Corporation (current) Jun 2025 Director and Member, Nomination and Compensation Committee (part-time), the Company (current)

Apr 1987 Joined the Company; assigned to Engineering Dept. Oct 2007 Section Chief, Quality Assurance Section Apr 2009 General Manager, Quality Assurance Dept. Apr 2019 General Manager, Internal Audit Dept. Aug 2024 Re-employed after mandatory retirement; General Manager, Internal Audit Dept. Apr 2026 Internal Audit Dept. Jun 2026 Full-time Audit & Supervisory Board Member (current)

Apr 1980 Joined Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.); assigned to Head Office Finance Dept. Feb 1989 Seconded to MitsuiZosen (USA) Inc. May 1992 Group G, Trade Finance, Finance Dept., General Planning Headquarters, Mitsui Engineering & Shipbuilding Co., Ltd. (now Mitsui E&S Co., Ltd.) Apr 2007 Deputy General Manager, Finance Dept., Mitsui E&S Co., Ltd. Jun 2011 Deputy General Manager, Finance & Accounting Dept., Mitsui E&S Co., Ltd. Apr 2012 General Manager, Finance & Accounting Dept. (in charge of finance), Mitsui E&S Co., Ltd. May 2013 General Manager, Accounting Dept., Tamano Works, Mitsui E&S Co., Ltd. May 2014 Manager, Audit & Supervisory Board Office, Mitsui E&S Co., Ltd. Jun 2023 Resigned from Mitsui E&S Co., Ltd. Jun 2025 Audit & Supervisory Board Member (current)

Apr 1987 Joined Osaka Regional Taxation Bureau Jul 2001 Section Chief No. 2, International Intelligence, Investigation Division, National Tax Agency Jul 2007 Senior Examiner, Investigation Division, National Tax Agency Jul 2011 Deputy Director, Kobe Tax Office Jul 2015 Director, Nagahama Tax Office Jul 2018 Chief, International Examination Division, Examination Division No. 1, Osaka Regional Taxation Bureau Jul 2019 Chief, Examination Planning Division, Examination Division No. 1, Osaka Regional Taxation Bureau Jul 2020 Deputy Director, Examination Division No. 2, Osaka Regional Taxation Bureau Jul 2021 Director, Shimogyo Tax Office Aug 2022 Registered as Certified Tax Accountant; opened Tomoyuki Hirota Tax Accountant Office, Representative (current) Aug 2023 Managing Director, Shimogyo Tax Payers Association (public interest incorporated association) Jun 2025 Audit & Supervisory Board Member (current)