Apr 1982 Joined Daido Steel Co., Ltd. Oct 2005 General Manager, Steel Sales Department, Steel Division, Daido Steel Jun 2009 General Manager, Business Planning and Administration Department, Specialty Steel Division, Daido Steel Jun 2012 Director, General Manager, Corporate Planning Department, Daido Steel Jun 2015 Managing Executive Officer, in charge of Sales and Production Division, Daido Steel Jun 2016 Managing Director, General Manager, Raw Materials Sales Headquarters, Daido Kogyo Co., Ltd. Jun 2018 Director, Managing Executive Officer, in charge of Raw Materials Sales Headquarters, Daido Kogyo Co., Ltd. Jun 2019 Representative Director, President, the Company Jun 2021 Representative Director, President and Executive Officer, the Company (current)

Apr 1984 Joined the Company Jun 2011 General Manager, Corporate Planning Department, the Company Jun 2014 Director, General Manager, Research and Development Department, the Company Jun 2020 Director, General Manager, High-Performance Materials Division, the Company Jun 2021 Director, Managing Executive Officer, General Manager, High-Performance Materials Division, the Company Aug 2022 Director, Managing Executive Officer, General Manager, High-Performance Materials Division, GI Promotion Project Leader, the Company Jun 2023 Director, Managing Executive Officer, GI Promotion Project Leader, the Company (current)

Jan 1989 Joined the Company May 2009 Plant Manager, Murata Plant, Heat Treatment Division, the Company Jun 2012 Plant Manager, Tsuchiura Plant, Heat Treatment Division, the Company Jan 2013 Plant Manager, Heat Treatment Plant, Composite Processing Division, the Company Apr 2015 Representative Director, President, TOHOKU Manufacturing (Thailand) Co., Ltd. Jun 2018 Director, Representative Director, President, TOHOKU Manufacturing (Thailand) Co., Ltd., the Company Jun 2021 Executive Officer, Representative Director, President, TOHOKU Manufacturing (Thailand) Co., Ltd., the Company Jun 2022 Executive Officer, General Manager, Composite Processing Division, the Company Jun 2023 Executive Officer, the Company Jun 2024 Director, Executive Officer, the Company (current)

Apr 1986 Joined the Company Jun 2010 Manager, Nagoya Sales Office, the Company May 2016 Manager, Tokyo Sales Office, the Company Jun 2018 Director, Manager, Tokyo Sales Office and Nagoya Sales Office, the Company Mar 2020 Director, General Manager, Sales Department, the Company Jun 2021 Director, Executive Officer, Plant Manager, Melting and Forging Steel Plant, the Company Jun 2022 Director, Executive Officer, the Company Aug 2022 Director, Executive Officer, Communication Promotion Project Leader, the Company (current)

Apr 1987 Joined Daido Steel Co., Ltd. Jul 2007 Manager, Product Planning Office, Planning and Administration Department, R&D Division, Daido Steel Jul 2008 Center Manager, Process Technology Development Center, R&D Division, Daido Steel Jun 2015 General Manager, Process Research Department, Technology Development Research Institute, Daido Steel Jul 2017 Deputy Director, Technology Development Research Institute, Daido Steel Apr 2018 Chief Staff Member, Daido Steel (America) Inc. Jun 2020 General Manager, Corporate Planning Department, the Company Jun 2021 Executive Officer, General Manager, Corporate Planning Department, the Company Jun 2023 Director, Executive Officer, General Manager, Corporate Planning Department, the Company (current)

Jun 1987 Representative Director, President, Tokyo Yogyo Co., Ltd. Jun 2004 Outside Audit and Supervisory Board Member, the Company Jun 2005 Representative Director, Chairman, Tokyo Yogyo Co., Ltd. (current) Jun 2006 Outside Director, the Company (current)

Apr 2003 Joined Intelligence Co., Ltd. (now Personal Career Co., Ltd.) Jun 2011 Joined BrainPad Inc. Mar 2019 Established Pallet Co., Ltd.; Representative Director (current) Oct 2020 Director, CCO, AOD Co., Ltd. Aug 2022 Chapter Head, Sendai Chapter, Grameen Japan General Incorporated Association Jun 2023 Outside Director, the Company (current)

Apr 1983 Joined Daido Steel Co., Ltd. Dec 2007 General Manager, Technical Service Department, Daido Steel Jun 2009 General Manager, Specialty Steel Product Development Department, Daido Steel Jul 2012 Assistant Manager, Quality Assurance Department, the Company Jan 2014 General Manager, Quality Assurance Department, the Company Jun 2021 Full-time Audit and Supervisory Board Member, the Company (current)

Apr 1969 Joined Industrial Bank of Japan, Ltd. Jun 1993 Director, General Manager, Business Development Department, The 77 Bank, Ltd. Jun 1998 Managing Director, General Manager, Head Office Sales Department, The 77 Bank, Ltd. Jun 2001 Outside Audit and Supervisory Board Member, the Company (current) Jun 2002 Senior Managing Director, The 77 Bank, Ltd. Jun 2005 Representative Director, Deputy President, The 77 Bank, Ltd. Jun 2010 Representative Director, President, The 77 Bank, Ltd. Jun 2018 Representative Director, Chairman, The 77 Bank, Ltd. Jun 2025 Senior Advisor, The 77 Bank, Ltd. (current)

Apr 1988 Joined Daido Steel Co., Ltd. Feb 2001 Seconded to OHIO STAR FORGE CO. Nov 2011 General Manager, Overseas Planning and Administration Department, Overseas Business Division, Daido Steel Jun 2017 Manager, Audit Office, CRM Department, Daido Steel Feb 2020 General Manager, Overseas Business Division, Daido Steel Aug 2021 Chairman and General Manager, Daido Special Steel (Shanghai) Co., Ltd. Jun 2023 Executive Officer, General Manager, Accounting Department, Daido Kogyo Co., Ltd. Jun 2024 Director, Executive Officer, General Manager, Accounting Department (in charge of General Affairs, Accounting and IT Systems Departments), Daido Kogyo Co., Ltd. Jun 2025 Outside Audit and Supervisory Board Member, the Company (current) Apr 2026 Director, Managing Executive Officer (in charge of Risk Management, Corporate Planning, General Affairs, Human Resources, Accounting and IT Systems Departments), Daido Kogyo Co., Ltd. (current)