Apr 1987 Joined New Nippon Steel Corporation (now Nippon Steel Corporation) Apr 2011 General Manager, Production Operations Department, Yawata Works, Nippon Steel Corporation Oct 2012 General Manager, Production Operations Department, Yawata Works, Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation) Oct 2014 General Manager, Engineering Operations Department, Yawata Works, Nippon Steel & Sumitomo Metal Corporation Apr 2016 General Manager, Sales Department, Steel Pipe Division, Nippon Steel & Sumitomo Metal Corporation Apr 2019 Executive Officer, Nippon Steel Corporation; Assigned as Deputy Head, Osaka Branch Apr 2022 Executive Officer, the Company Jun 2022 Representative Director, President, the Company (current)

Apr 1990 Joined the Company Jun 2010 General Manager, General Affairs Department, the Company Oct 2011 General Manager, General Affairs Department and General Manager, Planning Office, the Company Jun 2015 General Manager, General Affairs Department, General Manager, Procurement Department and General Manager, Planning Office, the Company Jun 2020 Director in charge of Accounting; General Manager, General Affairs Department, General Manager, Procurement Department and General Manager, Planning Office, the Company Dec 2023 Director in charge of General Affairs, Accounting, Sales and Nagoya Branch; General Manager, Procurement Department, the Company Managing Director in charge of Planning, General Affairs, Accounting, Sales and Nagoya Branch; General Manager, Procurement Department, the Company Managing Director in charge of Planning, General Affairs, Accounting, Sales No. 1 and Sales No. 2; General Manager, Procurement Department, the Company Jun 2025 Managing Director in charge of General Affairs and Accounting; General Manager, Procurement Department, the Company Oct 2025 Managing Director in charge of General Affairs, Accounting and Procurement, the Company (current)

Apr 1990 Joined the Company Jun 2016 General Manager, Manufacturing Department, Manufacturing Group Leader and Materials Group Leader, Manufacturing Department, and General Manager, Planning Office, the Company Apr 2017 General Manager, Manufacturing Department and General Manager, Planning Office, the Company Apr 2023 General Manager, Manufacturing Department, the Company Jun 2023 Director in charge of Quality Assurance; General Manager, Manufacturing Department, the Company Apr 2026 Director in charge of Quality Assurance and Manufacturing, the Company (current)

Apr 1993 Joined New Nippon Steel Corporation (now Nippon Steel Corporation) Jul 2006 Transferred to Nippon Steel Engineering Co., Ltd. (now NS Solutions) Dec 2007 Joined Sumitomo Corporation, Steel Pipe Business Unit, Line Pipe Division May 2013 Posted to Sumitomo Corporation Canada Aug 2015 Sumitomo Corporation, Steel Pipe Business Unit, Line Pipe Division Oct 2016 Sumitomo Corporation, Machinery Metal Products Business Unit, Mechanical Steel Pipe Division, Mechanical Steel Pipe Team Leader Feb 2020 Sumitomo Corporation, Automotive and Metal Products and Special Pipes Business Unit, Automotive Steel Sheet Business Division No. 1, Business Planning Team Leader May 2023 Started business as a sole proprietor management consultant (side business) Apr 2024 Sumitomo Corporation, Steel Group CFO Office May 2024 Registered as a Certified Management Consultant (Japan) Aug 2024 Executive Officer in charge of Planning and Sales, the Company Jun 2025 Director in charge of Planning, Sales No. 1 and Sales No. 2, the Company Apr 2026 Director in charge of Planning and General Supervision of Sales, Steel Sales and Processed Products Sales, the Company (current)

Mar 1989 Joined the Company Oct 2008 General Manager, Polished Strip Steel Sales Department, the Company Jun 2010 General Manager, Polished Strip Steel Sales Department and General Manager, Planning Office, the Company Nov 2010 General Manager, Sales Department and General Manager, Planning Office, the Company Jun 2015 General Manager, Sales Department and Head, Planning Office, the Company Jun 2016 Director in charge of Procurement and Nagoya Branch; Head, Planning Office and General Manager, Sales Department, the Company Jun 2020 Director in charge of Nagoya Branch; Head, Planning Office and General Manager, Sales Department, the Company Apr 2021 Director in charge of Quality Assurance and Manufacturing; Head, Planning Office, the Company Apr 2023 Director in charge of Quality Assurance and Manufacturing, the Company Jun 2023 Advisor, the Company Jun 2024 Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1979 Joined New Nippon Steel Corporation (now Nippon Steel Corporation) Jul 1992 Manager, Accounting Office, General Affairs Department, Hikari Works, Nippon Steel Corporation Jun 1995 Deputy General Manager, Related Business No. 2 Office, Corporate Planning Department, Nippon Steel Corporation Mar 2000 Seconded to Nippon Steel Welding Co., Ltd. Jul 2002 Seconded to Nippon Steel & Sumitomo Welding Co., Ltd. Jul 2006 General Manager, Administration Department, Nippon Steel & Sumitomo Welding Co., Ltd. Apr 2010 Transferred to Nippon Steel & Sumitomo Welding Co., Ltd.; Executive Officer Jul 2010 Director, Nippon Steel & Sumitomo Welding Co., Ltd. Jul 2015 Managing Director, Nippon Steel & Sumitomo Welding Co., Ltd. Jul 2016 Audit & Supervisory Board Member, Nippon Steel & Sumitomo Welding Co., Ltd. Apr 2019 Audit & Supervisory Board Member, Nippon Steel Welding & Engineering Co., Ltd. Jun 2021 Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1986 Joined Sumitomo Corporation Apr 2002 Team Leader, Mechanical Steel Pipe Team, Automotive Steel Pipe Department, Sumitomo Corporation Oct 2004 President, AB Tube Processing, Inc.; Posted to Sumitomo Corporation of America Apr 2012 Head, Business Development Unit, Steel Pipe Group, Houston Branch (USA), Sumitomo Corporation of America Jul 2016 General Manager, Mechanical Steel Pipe Division, Sumitomo Corporation Apr 2019 Senior Manager, Mechanical Steel Pipe and Special Pipe Division, Sumitomo Corporation; Seconded to Sumisho Metalone Steel Pipe Co., Ltd. Senior Managing Executive Officer, General Manager, Automotive Steel Pipe Division, Sumisho Metalone Steel Pipe Co., Ltd. Jul 2024 Started business as a sole proprietor management consultant Jun 2025 Director (Audit and Supervisory Committee Member), the Company (current) Aug 2025 General Manager, Corporate Planning and Administration Department, G-Pulse Co., Ltd. (current)