Oct 2005 Joined the Company Apr 2009 General Manager, Steel Department, Osaka Branch Jun 2010 Director, Deputy Branch Manager, Osaka Branch Jun 2011 Director, Branch Manager, Osaka Branch; in charge of Kansai/Chukyo Area Jun 2013 Representative Director, Executive Vice President, Branch Manager, Osaka Branch; in charge of Kansai/Chukyo Area Oct 2019 President and Representative Director, Morita Kozai Co., Ltd. Jul 2020 Representative Director, Executive Vice President; in charge of Kansai/Chukyo Area Jun 2021 Representative Director, Executive Vice President Jul 2023 President and Representative Director, Kouei Kozai Co., Ltd. (now Ono Ken Steel Co., Ltd.) Oct 2023 President and Representative Director, Obayashi Shokai Co., Ltd. Mar 2024 President and Representative Director, Matsuo Metal Co., Ltd. Jun 2025 Representative Director, President Apr 2026 Representative Director, President and Executive Officer (current)

Apr 1980 Joined the Company Sep 1989 Director, Manager, Oita Head Office Oct 1990 Director, Manager, Office of the President Apr 1991 Director, General Manager, Administration Division and Accounting Department Jun 1995 Managing Director, General Manager, Administration Division Jun 2003 Representative Director, Senior Managing Director, General Manager, Administration Division Apr 2006 Representative Director, Senior Managing Director May 2019 Representative Director, Senior Managing Director, General Manager, Administration Division Apr 2026 Representative Director, Senior Managing Executive Officer Jun 2026 Representative Director, Executive Vice President and Executive Officer; Kyushu/Okinawa Area Manager (current)

Apr 1997 Joined the Company Jan 2003 General Manager, Administration Department, Fukuoka Branch Jun 2003 Director, General Manager, Administration Department, Fukuoka Branch Apr 2006 (position not stated in source) Jun 2016 Director, General Manager, Administration Division Managing Director, General Manager, Administration Division May 2019 Managing Director, General Manager, Corporate Planning Office Jun 2021 Managing Director; in charge of Kyushu/Chugoku Area Sep 2021 Managing Director, Manager, Kumamoto Branch; in charge of Kyushu/Chugoku Area Oct 2023 Managing Director, Manager, Kokura Branch and Kumamoto Branch; in charge of Kyushu/Chugoku Area Apr 2024 Managing Director, Manager, Kokura Branch; in charge of Kyushu/Chugoku Area Apr 2025 President and Representative Director, Nishi-Nihon Steel Center Co., Ltd. Apr 2026 Director, Managing Executive Officer; Kyushu/Okinawa Area Manager Jun 2026 Representative Director, Senior Managing Executive Officer; Kansai/Chukyo Area Manager and Manager, Osaka Branch (current)

Sep 2003 Joined the Company Jun 2018 General Manager, Internal Audit Office Jun 2024 Director (Full-time Audit and Supervisory Committee Member) (current)

May 1990 Established Koichi Fukuda Certified Public Accountant Office; Office Director (current) Jun 2021 Director of the Company (current)

Jul 2021 Joined Frontier Management Co., Ltd. (current) Apr 2024 President and Representative Director, EVE Management Co., Ltd. (current) Jun 2024 Director of the Company (current)

Jul 2005 Established Umeda Certified Public Accountant Office; Office Director (current) May 2017 Outside Director, Izutsuya Co., Ltd. May 2021 Audit & Supervisory Board Member, Izutsuya Co., Ltd. (current) Jun 2021 Director (Audit and Supervisory Committee Member) of the Company (current)

Apr 1997 Joined Ishii, Ichikawa & Hattori Law Office (now Knowledge Joint Law Office); Attorney-at-law (current) Apr 2022 Chairperson, Kitakyushu Branch, Fukuoka Bar Association Jun 2022 Director (Audit and Supervisory Committee Member) of the Company (current)