Apr 1979 Joined the Company Apr 2002 General Manager, River Division, Tokyo Head Office Apr 2006 Deputy General Manager, Tokyo Head Office Apr 2009 Deputy Head Office Director, Tokyo Head Office Mar 2010 Executive Officer Apr 2011 General Manager, Tohoku Branch Mar 2013 Director Mar 2015 General Manager, Kyushu Branch and Okinawa Branch Mar 2016 Managing Executive Officer Apr 2017 Head of Tokyo Head Office Mar 2018 Senior Managing Executive Officer Mar 2019 Representative Director, President and Executive Officer May 2023 Chairman, Japan Consulting Engineers Association Mar 2024 Representative Director, Chairman Mar 2026 Director, Chairman (current)

Apr 1985 Joined the Company Apr 2004 General Manager, Water Systems Division, Tokyo Head Office Apr 2006 General Manager, River Division, Tokyo Head Office Apr 2010 Deputy General Manager, Chubu Branch Mar 2015 Executive Officer Apr 2015 Deputy Head Office Director, Tokyo Head Office Mar 2017 Managing Executive Officer Apr 2017 General Manager, Tohoku Branch Mar 2019 Director and Senior Managing Executive Officer Apr 2019 General Manager, Planning and Sales Division Mar 2021 Representative Director Mar 2022 Deputy President and Executive Officer Mar 2024 President and Executive Officer (current)

Apr 1987 Joined Yachiyo Engineering Co., Ltd. May 1991 Joined the Company Apr 2006 General Manager, Road and Transportation Division, Osaka Head Office Apr 2011 General Manager, Sales Division, Osaka Head Office Apr 2012 Deputy General Manager, Osaka Head Office Mar 2017 Executive Officer Apr 2017 Deputy General Manager of Administration Division and General Manager, Personnel Division Mar 2020 Director and General Manager of Administration Division Mar 2022 Managing Executive Officer Mar 2024 Senior Managing Executive Officer (current), General Manager of Planning and Sales Division (current) Mar 2026 Representative Director (current)

Apr 1989 Joined the Company Apr 2007 General Manager, Water Systems Division, Tokyo Head Office Apr 2012 General Manager, River Division, Tokyo Head Office Apr 2014 Deputy General Manager, Chubu Branch Apr 2016 General Manager, International Division Jun 2017 Director, Waterman Group Plc (current) Mar 2018 Executive Officer Apr 2019 Deputy Head of Planning and Sales Division Mar 2019 Director, Kensetsu Giken International Co., Ltd. Mar 2021 Managing Executive Officer (current) Mar 2023 Director (current) Mar 2024 Representative Director and President, Kensetsu Giken International Co., Ltd. (current)

Apr 1988 Joined Aoki Corporation (now Aoki Asunaro Construction Co., Ltd.) Feb 1999 Joined the Company Apr 2011 General Manager, Road and Transportation Division, Osaka Head Office Apr 2015 General Manager, Chugoku Branch Apr 2017 Deputy General Manager, Osaka Head Office Apr 2019 Deputy General Manager of Administration Division and General Manager, General Affairs Division Mar 2020 Executive Officer Apr 2020 Deputy General Manager of Administration Division and General Manager, Personnel Division Mar 2022 Managing Executive Officer (current) Mar 2024 Director (current), General Manager of Administration Division (current)

Apr 1988 Joined the Company Apr 2014 General Manager, Road and Transportation Division, Tokyo Head Office Apr 2015 General Manager, Transportation Systems Division, Tokyo Head Office Apr 2017 Deputy General Manager, Tokyo Head Office Mar 2019 Executive Officer Apr 2019 Deputy Head of Planning and Sales Division Mar 2021 Managing Executive Officer (current) Apr 2021 Deputy Head Office Director, Tokyo Head Office Mar 2022 General Manager, Chubu Branch Mar 2024 Head of Osaka Head Office Mar 2025 Director (current) Apr 2025 Head of Tokyo Head Office (current)

Apr 1991 Joined the Company Apr 2012 General Manager, Water Systems Division, Tokyo Head Office Apr 2014 General Manager, River Division, Tokyo Head Office Apr 2016 Deputy General Manager, Chubu Branch Apr 2017 Deputy General Manager, Tokyo Head Office Mar 2019 Executive Officer Apr 2019 Deputy Head Office Director, Tokyo Head Office Mar 2021 Managing Executive Officer (current) Apr 2021 General Manager, Tohoku Branch Mar 2023 Head of Tokyo Head Office Mar 2025 Director (current), General Manager of Technology Division (current)

Apr 1973 Joined the National Tax Agency Jul 1997 Instructor, Tokyo Training Institute, National Tax College Jul 2011 Head, Gyoda Tax Office, Kanto-Shinetsu Regional Taxation Bureau Jul 2014 Head, Nihonbashi Tax Office, Tokyo Regional Taxation Bureau Aug 2015 Registered Certified Public Tax Accountant (current); Fumiko Kosao Tax Accountant Office (current) Jun 2016 Outside Audit & Supervisory Board Member, Tobishima Corporation Mar 2017 Director (current) Jun 2017 Outside Director, Metawater Co., Ltd. (current) Jul 2020 Outside Director (Audit and Supervisory Committee Member), Toel Co., Ltd. Jun 2023 Outside Director, Nippon Road Co., Ltd. (current)

Apr 1980 Joined Teijin Limited Jun 2009 Executive Officer and Head of Corporate Planning Division, Teijin Limited Apr 2011 CFO and General Manager of Finance and Accounting Division, Teijin Limited Apr 2014 General Manager of Corporate Planning Division, Teijin Limited Jun 2014 Director, Teijin Limited Apr 2016 Managing Executive Officer, Teijin Limited Apr 2017 In charge of Corporate Planning, Legal and Intellectual Property, and Global Strategy (in charge of overseas financial holding companies in Europe, the Americas and China), Teijin Limited Apr 2019 Senior Managing Executive Officer, CFO, in charge of Accounting and Finance, Teijin Limited Apr 2020 Representative Director, Teijin Limited Apr 2021 Director and Non-Executive Adviser, Teijin Limited Mar 2022 Director (current)

Apr 1983 Joined The Mainichi Newspapers Co., Ltd. Apr 2006 Bureau Chief, Okayama Bureau, The Mainichi Newspapers Co., Ltd. Apr 2008 Head of Economic Desk, Osaka Head Office, The Mainichi Newspapers Co., Ltd. May 2011 Bureau Chief, Kyoto Bureau, The Mainichi Newspapers Co., Ltd. Apr 2016 General Manager, Business Division, The Mainichi Newspapers Co., Ltd. May 2017 Director, Japan High School Baseball Federation Jun 2018 Deputy Representative, Osaka Head Office, The Mainichi Newspapers Co., Ltd. Jun 2018 Director, Daido Life Foundation for International Cultural Exchange (current) Apr 2020 Part-time Director, Osaka University Jun 2020 Outside Director, Ikedasenshu Holdings Co., Ltd. (current) Jun 2020 Non-Executive Director (part-time), The Ikedasenshu Bank, Ltd. (current) Feb 2021 Director, Kansai Innovation Center (current) Mar 2023 Director (current)

Apr 1976 Joined Toyo Information Systems Co., Ltd. (now TIS Inc.) Jun 2000 Director, Toyo Information Systems Co., Ltd. Apr 2004 Managing Director, Toyo Information Systems Co., Ltd. Apr 2008 Senior Managing Director, Toyo Information Systems Co., Ltd. Apr 2010 Representative Director and Deputy President, Toyo Information Systems Co., Ltd. Apr 2011 Representative Director and President, Toyo Information Systems Co., Ltd. Jun 2018 Representative Director, Chairman and President, Toyo Information Systems Co., Ltd. Apr 2021 Director and Chairman, TIS Inc. (current) Mar 2025 Director (current)

Apr 1988 Joined Fujita Corporation Oct 1999 Joined the Company Apr 2012 General Manager, Asset Management Office, Tokyo Head Office Apr 2014 General Manager, Infrastructure Management Center, Tokyo Head Office Apr 2019 Deputy General Manager, Kyushu Branch Apr 2022 Deputy General Manager of Technology Division Mar 2025 Standing Corporate Auditor (current)

Apr 1986 Joined Tokyo Construction Consultants Co., Ltd. Jan 1990 Joined Nihon Construction Consultants Co., Ltd. (now ideaa Co., Ltd.) Jun 2009 Joined the Company Apr 2012 General Manager, Public Relations Office, Administration Division Apr 2017 General Manager, General Affairs Division, Chubu Branch Apr 2020 Deputy General Manager of Administration Division and General Manager, General Affairs Division Mar 2023 Standing Corporate Auditor Mar 2025 Corporate Auditor (current)

Apr 1971 Appointed Assistant Judge Apr 1981 Judge, Tokyo District Court Apr 1985 Head of Training Division, United Nations Asia and Far East Institute for the Prevention of Crime and the Treatment of Offenders Apr 1994 Presiding Judge, Tokyo District Court Feb 2003 Presiding Judge, Morioka District and Family Court Feb 2005 Presiding Judge, Tokyo High Court Mar 2009 Chief Judge, Sapporo High Court Feb 2011 Registered Attorney at Law (current) Apr 2011 Professor, Meiji University Law School Mar 2015 Corporate Auditor (current)

Apr 1995 Registered Attorney at Law (current) Jul 1998 Partner, Kakimoto Law Office Sep 2008 Partner, Kasumigaseki Law & Accounting Office Mar 2011 Outside Audit & Supervisory Board Member, Mediaflag, Inc. (now Impact Holdings, Inc.) Feb 2012 Outside Audit & Supervisory Board Member, Altec Co., Ltd. (current) Mar 2015 Senior Partner, Sakurada-dori Law Office (current) Mar 2016 Outside Director, Mediaflag, Inc. (now Impact Holdings, Inc.) Apr 2016 Vice President, Daiichi Tokyo Bar Association Mar 2019 Corporate Auditor (current) Apr 2022 Managing Director, Japan Federation of Bar Associations