Apr 1986 Joined Nippon Steel Corporation Apr 2000 Group Leader, Product Process Group, Product Technology Department, Muroran Works, Bar & Wire Business Division Apr 2003 Group Leader, Bar Steel Group, Bar & Wire Sales Department, Bar & Wire Business Division Apr 2010 General Manager, Process Engineering Department, Muroran Works, Bar & Wire Business Division Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation) Seconded to Nippon Steel Special Steel Bar & Wire Products (Suzhou) Co., Ltd. Apr 2016 Seconded to Nippon Steel & Sumitomo Metal Cold Heading Wire (Suzhou) Co., Ltd. Jul 2017 Returned to Nippon Steel & Sumitomo Metal Corporation; General Manager, Bar & Wire Sales Department, Bar & Wire Business Division Apr 2019 Company name changed to Nippon Steel Corporation Apr 2022 Seconded to the Company; Advisor to the Company Jun 2022 Resigned from Nippon Steel Corporation and joined the Company; Director, Executive Vice President, Senior Executive Officer of the Company Apr 2023 Representative Director, President of the Company (current) Jun 2023 Director, Osaka Migaki Co., Ltd. (current) Senior Executive Officer, General Manager of Sales Headquarters of the Company (current) Jun 2024 Outside Director, Megasus Co., Ltd. (current)

Apr 1990 Joined Nippon Steel Corporation Apr 2005 Group Leader, Accounting Group, General Affairs Department, Hirohata Works Apr 2011 Group Leader, Profit Management Group, General Sales Management Department Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation); Chief Manager, Profit Management Office, General Sales Management Department Aug 2015 Senior Chief Manager, Business Planning Department Jul 2016 Senior Chief Manager, Finance Department Apr 2018 Senior Chief Manager, Planning Office, Titanium & Specialty Stainless Business Division Apr 2019 Company name changed to Nippon Steel Corporation; Senior Chief Manager, IR Office, Finance Department; concurrently Senior Chief Manager, Public Relations Center, General Affairs Department Apr 2022 Seconded to Nippon Steel Techno-Engineering Co., Ltd. Apr 2024 Seconded to the Company; Senior Executive Officer, General Manager of General Affairs and Planning Department of the Company Jun 2024 Director, Senior Executive Officer, General Manager of General Affairs and Planning Department of the Company (current)

Apr 1986 Joined Nichitetsu Shoji Co., Ltd. Apr 2005 Team Leader, Credit Examination Team, General Affairs Department, Osaka Branch Oct 2007 Chief Manager, Personnel and Secretarial Department Apr 2010 General Manager, Personnel and Secretarial Department Nov 2010 General Manager, Administration Department, Nagoya Branch Oct 2013 Merged into Nippon Steel & Sumitomo Bussan Corporation (now Nippon Steel Trading Corporation) Apr 2014 Chief Manager, Osaka Office, Credit Examination Department Apr 2019 Company name changed to Nippon Steel Trading Corporation Dec 2020 Seconded to the Company; General Manager, Finance Department of the Company Apr 2021 Advisor; General Manager, Finance Department of the Company Oct 2022 Resigned from Nippon Steel Trading Corporation Nov 2022 Joined the Company Jun 2023 Corporate Auditor, Osaka Migaki Co., Ltd. (current) Director, Senior Executive Officer, General Manager of Finance Department of the Company (current) Outside Corporate Auditor, Megasus Co., Ltd. (current)

Apr 1993 Joined Sumitomo Metal Industries, Ltd. Jun 2007 Seconded to Jiangyin Xingcheng Special Steel Works Co., Ltd. Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation); Chief Manager, Bar & Wire Control Office, Technical Management Department, Kokura Works Jan 2013 Chief Manager, Bar & Wire Technology Office, Bar & Wire Technology Department, Bar & Wire Business Division Apr 2015 General Manager, Bar & Wire Control Office, Bar & Wire Department, Yawata Works; concurrently Chief Manager, Quality Assurance Office, Quality Control Department Apr 2016 General Manager, Second Bar & Wire Control Office, Bar & Wire Department, Yawata Works; concurrently Senior Chief Manager, Quality Assurance Office, Quality Control Department Jul 2017 Senior Chief Manager, Bar & Wire Department, Yawata Works Apr 2018 Senior Chief Manager, Quality Control Department, Yawata Works; concurrently Apr 2019 Company name changed to Nippon Steel Corporation Apr 2020 Seconded to Nippon Steel Steel Processing (Thailand) Co., Ltd. May 2024 Seconded to the Company; Senior Executive Officer, Plant Manager of Yao Works of the Company Jun 2024 Director, Senior Executive Officer, Plant Manager of Yao Works of the Company (current)

Apr 1997 Joined Fukuoka District Court as Court Clerk Nov 2002 Passed the National Bar Examination Mar 2003 Resigned from the court Apr 2003 Legal Apprentice (57th Class) Oct 2004 Registered as Attorney-at-law (Osaka Bar Association); joined Yodoyabashi Yamagami Law Partnership Apr 2010 Partner, Yodoyabashi Yamagami Law Partnership (current) Apr 2011 Outside Corporate Auditor, Maxvalu Chubu Co., Ltd. Jun 2015 Outside Director of the Company (current)

Oct 1988 Joined Ota Showa Audit Corporation (now EY ShinNihon LLC) Sep 1997 Resigned from Ota Showa Audit Corporation Oct 1997 Established certified public accountant practice (current) Jun 2011 Outside Corporate Auditor, Daito Chemix Corporation Jun 2026 Outside Director of the Company

Apr 1994 Joined Itochu Corporation Apr 1996 Sheet Piles Section, Heavy Plate Department Apr 2001 Seconded to Tokyo Steel Center Co., Ltd. Oct 2004 Transferred to Itochu Marubeni Steel Corporation; Operating Accounting Team 1, Accounting Department, Management Group Apr 2014 Seconded to Itochu Marubeni Steel Korea Co., Ltd. Apr 2018 Returned to Itochu Marubeni Steel Corporation; Internal Control Evaluation Team, Audit Department Jul 2022 Acting Team Leader, Internal Control Evaluation Team, Audit Department Apr 2025 Team Leader, Internal Control Evaluation Team, Audit Department Jun 2026 Seconded to the Company; Advisor to the Company; Outside Corporate Auditor of the Company

Apr 1974 Joined Osaka National Tax Bureau Jul 2007 Director, Wadayama Tax Office, Osaka National Tax Bureau Jul 2010 Chief, First Section, Investigation Management Division, Investigation Department, Osaka National Tax Bureau Jul 2012 Director, Uji Tax Office, Osaka National Tax Bureau Jul 2013 Chief, Investigation Management Section, Investigation Department, Osaka National Tax Bureau Jul 2014 Deputy Director, Investigation Department, Osaka National Tax Bureau Jul 2015 Director, Kita Tax Office, Osaka National Tax Bureau Aug 2016 Established certified tax accountant practice (current) Jun 2019 Outside Corporate Auditor of the Company Jun 2020 Full-time Outside Corporate Auditor of the Company Oct 2020 Outside Corporate Auditor of the Company (current)

Apr 1997 Joined Nippon Steel Corporation Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation); Chief Manager, Second Automotive Sheet Office, Automotive Sheet Sales Department, Sheet Business Division May 2014 Seconded to Nippon Steel & Sumitomo Metal (Thailand) Co., Ltd. Sep 2016 Seconded to NS Siam United Steel Co., Ltd. Jul 2018 Returned to Nippon Steel & Sumitomo Metal Corporation; Senior Chief Manager, First Bar Steel Office, Bar Steel Sales Department, Bar & Wire Business Division Apr 2019 Corporate Auditor, Matsubishi Metal Industries Co., Ltd. Apr 2019 Company name changed to Nippon Steel Corporation Apr 2021 Senior Chief Manager, First Bar Steel Office, Bar Steel Sales Department, Bar & Wire Business Division, Nippon Steel Corporation; Director, Nippon Steel Wire Co., Ltd. Jun 2021 Director, Nippon Steel Seiko Co., Ltd. Apr 2025 Deputy Manager, First Bar Steel Office, Bar Steel Sales Department, Bar & Wire Business Division Jul 2025 Manager, Bar & Wire Office, Osaka Branch Sep 2025 Outside Corporate Auditor of the Company (current) Apr 2026 Manager, Kansai Bar & Wire Office, Bar Steel Sales Department, Bar & Wire Business Division (current)