Apr 1987 Joined Nippon Steel Corporation May 2012 General Manager, Process Engineering Department, Nagoya Works, Nippon Steel Corporation Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation Apr 2015 General Manager, Thin Sheet Planning Department, Thin Sheet Business Division, Nippon Steel & Sumitomo Metal Corporation Apr 2019 Renamed Nippon Steel Corporation; Executive, Nagoya Branch Manager Apr 2023 Advisor to the Company Jun 2023 Director and Vice President; Deputy General Manager, Technology Headquarters Apr 2024 Representative Director, President (current)

Apr 1985 Joined the Company Mar 2011 Chugoku Branch Manager May 2013 Deputy Branch Manager, Osaka Branch Apr 2014 Branch Manager, Osaka Branch Apr 2018 Executive Officer; Branch Manager, Osaka Branch; concurrently General Manager, West Japan Molded Products Sales Department, Roofing Sales Headquarters Apr 2019 Executive Officer; Branch Manager, Osaka Branch; concurrently General Manager, West Japan Molded Products Sales Department, Sales Headquarters Apr 2020 Executive Officer; concurrently General Manager, Construction Management Department, Technology Headquarters Apr 2021 Executive Officer; Deputy General Manager, Technology Headquarters; in charge of Construction Management Department, Construction Administration Department and Technology Development Center Jun 2021 Director, Senior Executive Officer; Deputy General Manager, Technology Headquarters; in charge of Construction Management Department, Construction Administration Department and Technology Development Center Apr 2022 Director, Senior Executive Officer; Deputy General Manager, Technology Headquarters; in charge of Technology Department, Construction Administration Department, Construction Management Department and Technology Development Center Apr 2024 Director, Managing Executive Officer; General Manager, Technology Headquarters (current)

Apr 1988 Joined Nippon Steel Corporation Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation; Senior Chief Manager, Systems Planning Office, Finance Department Apr 2014 Seconded from Nippon Steel & Sumitomo Metal Corporation to Osaka Steel Co., Ltd. Apr 2018 General Manager, Internal Control and Audit Department, Nippon Steel & Sumitomo Metal Corporation; concurrently Chief Manager, Finance Department Apr 2019 Renamed Nippon Steel Corporation Apr 2020 Advisor to the Company Jun 2020 Executive Officer; General Manager, General Affairs Department; Head of Work Style Reform Promotion Team Jun 2021 Director, Senior Executive Officer; General Manager, General Affairs Department; Head of Work Style Reform Promotion Team; in charge of Internal Control and Audit Department, Human Resources Development Department, Accounting Department and Safety, Health and Environment Department Apr 2023 Director, Senior Executive Officer; General Manager, General Affairs Department and Human Resources Development Department; Head of Work Style Reform Promotion Team; in charge of Internal Control and Audit Department, Accounting Department and Safety, Health and Environment Department Apr 2024 Director, Managing Executive Officer; General Manager, General Affairs Department and Human Resources Development Department; in charge of Internal Control and Audit Department, Accounting Department and Safety, Health and Environment Department Apr 2025 Director, Managing Executive Officer; General Manager, General Affairs Department and Human Resources Development Department; in charge of Internal Control and Audit Department, Accounting Department, Safety, Health and Environment Department and BPX Team (current)

Apr 1986 Joined the Company May 2013 Chugoku Branch Manager Apr 2015 Kyushu Branch Manager Apr 2016 Executive Officer; Kyushu Branch Manager Jun 2018 Director; Kyushu Branch Manager Apr 2019 Director; Tokyo Branch Manager Jun 2021 Senior Executive Officer; Tokyo Branch Manager Apr 2022 Senior Executive Officer; Assigned to the President Jun 2022 Corporate Auditor (current)

Apr 1988 Joined Nisshin Steel Co., Ltd. Oct 2006 Team Leader, Technology Planning Team, Production Control Department, Shunan Works, Nisshin Steel Co., Ltd. Apr 2008 Section Manager, Cold Rolling and Finishing Section, Shunan Works, Nisshin Steel Co., Ltd. Apr 2012 Team Leader, Production Control Team, Technology Planning Department, Head Office, Nisshin Steel Co., Ltd. Apr 2013 Team Leader, Stainless Production Integration Team, Production Promotion Department, Shunan Works, Nisshin Steel Co., Ltd. Dec 2015 General Manager, PI Promotion Department, Nisshin Steel Co., Ltd. Apr 2020 Merged into Nippon Steel Corporation Apr 2024 General Manager, Information Systems Department, Nippon Steel Corporation; concurrently General Manager, Information Systems Department and Director of Information Systems Management Office; Deputy General Manager, Internal Control and Audit Department Jun 2026 Advisor to the Company; Corporate Auditor (current)

Apr 1994 Joined Sumitomo Metal Industries, Ltd. Jul 2006 Senior Manager, Osaka Finance Office, Accounting Department, Sumitomo Metal Industries, Ltd. Sep 2007 Senior Manager, Tokyo Finance Office, Accounting Department, Sumitomo Metal Industries, Ltd. Apr 2011 Senior Manager, Accounting Office, Planning Department, Steel Sheet and Building Materials Company, Sumitomo Metal Industries, Ltd. Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation; Manager, Accounting Office, Kashima Works Operations Department Jun 2016 Chief Manager, Affiliated Companies Department, Head Office, Nippon Steel & Sumitomo Metal Corporation Jun 2018 Senior Chief Manager, Affiliated Companies Department, Head Office, Nippon Steel & Sumitomo Metal Corporation Apr 2019 Renamed Nippon Steel Corporation; Senior Chief Manager, Thin Sheet Planning Department, Thin Sheet Business Division, Head Office Jun 2019 Corporate Auditor of the Company Apr 2020 Senior Chief Manager, Thin Sheet Sales Department No. 1 Office, Thin Sheet Sales Department, Thin Sheet Business Division, Head Office, Nippon Steel Corporation Apr 2021 Deputy General Manager, Thin Sheet Sales Department No. 1 Office; Section Manager, Thin Sheet Sales Affiliated Companies Jun 2023 Corporate Auditor of the Company retired Jun 2024 Corporate Auditor of the Company (current)