Apr 1977 Joined the Company Jun 1983 Director of the Company Jun 1985 Managing Director of the Company Jun 1987 Senior Managing Director of the Company Jun 1989 Representative Director, Vice President of the Company Jun 1997 Representative Director, Vice Chairman of the Company Jun 2003 Representative Director, Chairman of the Company Jun 2007 Director of the Company Jun 2009 Representative Director, Chairman of the Company Apr 2023 Director, Chairman of the Board and Chairman of the Board Meeting of the Company (current)

Apr 1985 Joined the Company Jan 2011 Deputy General Manager, North America Regional Office, Overseas Branch, of the Company Apr 2013 General Manager, Finance Department, Head Office, of the Company May 2015 General Manager, Corporate Planning Office, Head Office, of the Company Apr 2017 Executive Officer of the Company Jun 2018 Director of the Company Apr 2019 Managing Executive Officer of the Company Apr 2022 Senior Managing Executive Officer of the Company Apr 2023 Executive Vice President and Executive Officer of the Company Apr 2024 Representative Director of the Company Apr 2025 Representative Director, President and CEO of the Company (current)

Apr 1984 Joined the Company Apr 2017 Executive Officer of the Company Mar 2018 General Manager, Civil Engineering Division, Osaka Head Office, of the Company Apr 2021 General Manager, Shikoku Branch, of the Company Apr 2022 Managing Executive Officer of the Company Apr 2023 General Manager, Civil Engineering Division of the Company Apr 2024 Senior Managing Executive Officer and Deputy General Manager, Safety Division, of the Company Apr 2025 Executive Vice President and Executive Officer of the Company (current) Jun 2025 Representative Director of the Company (current) Responsibilities: General civil engineering; General Manager, Civil Engineering Division

Apr 1983 Joined Suntory Holdings Ltd. Apr 2012 Executive Officer, Suntory Holdings Ltd. Apr 2016 Senior Managing Director, Suntory Wellness Ltd. Apr 2019 Advisor, Suntory Holdings Ltd.; General Manager, Suntory Hall, Suntory Foundation for Arts Jun 2020 Outside Director of the Company (current) May 2021 Outside Director and Audit and Supervisory Committee Member, Toho Co., Ltd. (current) Apr 2025 Senior Advisor, Suntory Foundation for Arts

Apr 1979 Joined Mitsui & Co., Ltd. Apr 2010 Executive Officer, Mitsui & Co., Ltd. Apr 2012 Managing Executive Officer, Mitsui & Co., Ltd. Jun 2014 Representative Director, Senior Managing Executive Officer, Mitsui & Co., Ltd. Apr 2016 Representative Director, Executive Vice President and Executive Officer, Mitsui & Co., Ltd. Apr 2018 Director, Mitsui & Co., Ltd. Jun 2018 Advisor, Mitsui & Co., Ltd. Jul 2020 Adviser, Mitsui & Co., Ltd. Jun 2021 Outside Director of the Company (current)

Apr 1986 Joined Sony Corporation (now Sony Group Corporation) Jan 1991 Representative Director, People Focus Consulting Inc. Jun 2010 Outside Audit & Supervisory Board Member, Astellas Pharma Inc. Mar 2011 Outside Director, CAC Corporation (now CAC Holdings Corporation) Apr 2012 Director and Founder, People Focus Consulting Inc. Jun 2013 Outside Director, Marubeni Corporation Jun 2015 Outside Director, Mitsui Chemicals, Inc. Jun 2018 Outside Director, Seven Bank, Ltd.; Outside Director, Terumo Corporation Jun 2022 Outside Director of the Company (current) Aug 2022 Outside Director, Oracle Corporation Japan (current) Mar 2024 Advisor and Founder, People Focus Consulting Inc. (current) Apr 2025 Outside Director, Sekisui House, Ltd. (current) Jun 2025 Outside Director, Santen Pharmaceutical Co., Ltd. (current)

Apr 1975 Joined Unitika Ltd. Apr 2003 Executive Officer, Unitika Ltd. Apr 2005 Managing Executive Officer, Unitika Ltd. Jun 2008 Director and Senior Executive Officer, Unitika Ltd. Jul 2012 Director and Managing Executive Officer, Unitika Ltd. Jun 2014 Representative Director, President and Executive Officer, Unitika Ltd. Jun 2019 Representative Director, Chairman, Unitika Ltd. Jun 2022 Outside Corporate Auditor, Daihen Corporation (current; scheduled to retire Jun 24, 2026) Jun 2023 Senior Advisor, Unitika Ltd. Jun 2024 Outside Director of the Company (current)

Apr 1983 Joined Mitsubishi Chemical Industries Ltd. (now Mitsubishi Chemical Corporation) Apr 2005 President and Director, MCC PTA India Ltd. Apr 2014 Executive Officer, Mitsubishi Chemical Corporation (now Mitsubishi Chemical Corporation) Dec 2015 Executive Officer, Mitsubishi Chemical Holdings Corporation (now Mitsubishi Chemical Group Corporation) Apr 2018 Senior Executive Officer, Mitsubishi Chemical Holdings Corporation Apr 2019 Senior Executive Officer and Director, Mitsubishi Chemical Corporation Apr 2021 Representative Executive Officer and Senior Executive Officer, Mitsubishi Chemical Holdings Corporation Apr 2022 Executive Vice President and Executive Officer, Mitsubishi Chemical Holdings Corporation; Representative Director, Mitsubishi Chemical Corporation Jun 2023 Executive Consultant, Mitsubishi Chemical Corporation Jun 2024 Outside Director, Toyo Seikan Group Holdings, Ltd. (current); Outside Director of the Company (current)

Apr 1982 Joined the Company Mar 2018 Executive Officer of the Company Apr 2019 Deputy General Manager, Building Division, Tokyo Head Office, of the Company Apr 2021 General Manager, Tohoku Branch, of the Company Apr 2023 Managing Executive Officer and General Manager, Building Division, of the Company (current) Apr 2024 Senior Managing Executive Officer and General Manager, Safety Division, of the Company Apr 2025 Executive Vice President and Executive Officer of the Company (current)

Apr 1984 Joined Sony Corporation (now Sony Group Corporation) Jul 2011 Vice President, Sony Corporation Apr 2012 Senior Vice President, Strategy Division, Sony Mobile Communications Inc. Nov 2014 Vice President, UX, Product Strategy, and Sales & Marketing, Sony Corporation (now Sony Group Corporation) Apr 2016 Vice President, Brand Design Platform, Sony Corporation Nov 2016 Vice President, Brand Design Platform, Sony Corporation; Director, Frontage Inc. Mar 2017 Vice President, Brand Design Platform, Sony Corporation; Director, Frontage Inc.; Director, Sony Corporate Systems Inc. Jan 2021 Representative Director, Sony Pictures Entertainment Japan Inc.; Director, Animax Broadcast Japan Inc.; Director, Kids Station Inc. Apr 2022 Trustee, Sony Gakuen Shohoku Junior College (current)

Apr 1982 Joined the Company Apr 2019 General Manager, iPD Center, Building Division, of the Company Apr 2020 General Manager, Digital Promotion Office, Executive Officer, of the Company Feb 2022 General Manager, DX Division, of the Company Apr 2022 Managing Executive Officer of the Company Apr 2024 Advisor of the Company Jun 2024 Full-time Corporate Auditor of the Company (current)

Apr 1977 Joined the Ministry of International Trade and Industry Jan 2000 Director, Economic Cooperation Division, Trade Policy Bureau, Ministry of International Trade and Industry Jan 2001 Director, Trade Finance and Economic Cooperation Division, Trade and Economic Cooperation Bureau, Ministry of Economy, Trade and Industry Jul 2002 Director, Secretariat Division, Minister's Secretariat, Ministry of Economy, Trade and Industry Aug 2004 Deputy Director-General, Minister's Secretariat (Trade and Economic Cooperation Bureau), Ministry of Economy, Trade and Industry Sep 2005 Councillor, Cabinet Secretariat (Assistant to Deputy Chief Cabinet Secretary) Jul 2008 Director-General for Regional Economy and Industry, Ministry of Economy, Trade and Industry Jul 2009 Retired from Ministry of Economy, Trade and Industry Aug 2009 Executive Officer, Sohgo Security Services Co., Ltd. (ALSOK) Apr 2010 Managing Executive Officer, Sohgo Security Services Co., Ltd. Jun 2011 Director and Managing Executive Officer, Sohgo Security Services Co., Ltd. Apr 2014 Representative Director, President, ALSOK Jochu Keibi Co., Ltd. Apr 2016 Senior Advisor, Sohgo Security Services Co., Ltd. Jun 2016 Chairman, Overseas Industrial Human Resources Development Association (general incorporated foundation) Jun 2023 Outside Corporate Auditor of the Company (current)

Apr 1987 Joined the Company Apr 2013 General Manager, General Affairs Department, Tohoku Branch, of the Company Apr 2016 General Manager, Accounting Department, Head Office, of the Company Apr 2026 Advisor of the Company (current)

Apr 1984 Joined the Ministry of Construction Apr 1995 First Secretary, Embassy of Japan in Germany, Ministry of Foreign Affairs Jun 2003 Assistant Manager, Waterfront Development Promotion Division, Port and Harbor Bureau, Tokyo Metropolitan Government Aug 2004 Chief Manager, Coordination, Office of the Governor, Tokyo Metropolitan Government Jul 2006 Special Regional Development Officer, Urban and Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism Jul 2007 Director-General, Construction Policy Department, Kanto Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism Jul 2008 Director-General, General Affairs Department, Kyushu Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism Apr 2010 Counsellor, Office for Promotion of Private Finance Initiatives, Cabinet Office Oct 2012 Director, General Affairs Division, Land and Construction Industries Bureau, Ministry of Land, Infrastructure, Transport and Tourism Jul 2015 Deputy General Manager, Management Division, East Nippon Expressway Company Limited Jun 2016 Deputy Director-General, Kanto Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism Nov 2018 Managing Executive Director, Japan Federation of Construction Contractors Jun 2021 Executive Director, Japan Federation of Construction Contractors Jan 2024 Chairman, National Construction Training Center (general incorporated foundation) (current)

Apr 1989 Joined Chemical Bank (now JPMorgan Chase Bank), Tokyo Branch Apr 1992 Joined Masuda Ejiri Law Office (now Asahi Law Offices) Oct 1994 Joined Century Audit Corporation (now Ernst & Young ShinNihon LLC) Apr 1998 Registered as Certified Public Accountant May 2009 Partner, Ernst & Young ShinNihon LLC Apr 2024 Specially Appointed Professor, Faculty of Commerce, Chuo University (current)