Apr 1990 Joined Wakita Co., Ltd. Sep 1993 Joined Koyo Unso Co., Ltd. Jul 1997 Joined Marubeni Construction Machinery Sales Co., Ltd. Jul 2007 Joined the Company; Deputy General Manager, Sales Department, and Manager, Osaka Sales Office Apr 2010 Executive Officer, the Company; General Manager, Sales Division, and Manager, Osaka Branch Jan 2014 Director, Shinwa Service Co., Ltd. Aug 2017 Managing Director, Executive Officer, the Company; General Manager, Sales Division Jun 2019 Director, Executive Vice President, Executive Officer, the Company; General Manager, Sales Division Nov 2019 Chairman, Guangdong Nisshin Chuangfu Construction New Materials Co., Ltd. Jun 2021 Representative Director, Executive Officer, the Company; General Manager, Sales Division Apr 2023 Representative Director, Executive Officer, the Company Jun 2023 Representative Director, President, the Company Jul 2023 Executive Director, Guangdong Nisshin Chuangfu Construction New Materials Co., Ltd. Apr 2024 Director, Yagumi Co., Ltd. (current) May 2025 Representative Director, President, Ou Metal Industry Co., Ltd. (current) Oct 2025 Director, Kaizu Construction Co., Ltd. (current) Jun 2026 Representative Director, Chairman, the Company (current)

May 1993 Representative, Kito Kogyo Jul 2000 Representative Director, Yagumi Ltd. (now Yagumi Co., Ltd.) Feb 2019 Representative Director, Kisaragi Global Link Cooperative (current) Sep 2022 Director, Itabashi-gumi Ltd. (now ITABASHI Co., Ltd.) (current) Sep 2022 Director, Itabashi Transport Ltd. Jun 2024 Director, the Company Feb 2025 Director, Executive Vice President, the Company May 2025 Director, Ou Metal Industry Co., Ltd. (current) Oct 2025 Director, Kaizu Construction Co., Ltd. (current) Jun 2026 Representative Director, Chairman, Yagumi Co., Ltd. Jun 2026 Representative Director, President, the Company (current)

Oct 1998 Joined Tohmatsu & Co. (now Deloitte Tohmatsu LLC), Tokyo Office Apr 2002 Registered as Certified Public Accountant Feb 2012 Joined the Company Jun 2012 Audit & Supervisory Board Member, Shinwa Service Co., Ltd. Jul 2012 Executive Officer, the Company; General Manager, Administration Division Nov 2019 Supervisor, Guangdong Nisshin Chuangfu Construction New Materials Co., Ltd. Jun 2023 Director, Executive Officer, the Company; General Manager, Administration Division Apr 2024 Director, Yagumi Co., Ltd. (current) Feb 2025 Director, Executive Officer, the Company; General Manager, Administration Division May 2025 Audit & Supervisory Board Member, Ou Metal Industry Co., Ltd. Oct 2025 Director, Kaizu Construction Co., Ltd. (current) Apr 2026 Managing Director, Executive Officer, the Company (current)

Apr 1990 Joined the National Police Agency Jul 2001 Assistant Counselor, Preparatory Office for Judicial System Reform, Cabinet Secretariat Dec 2001 Assistant Counselor, Secretariat, Judicial System Reform Promotion Headquarters Jun 2003 Registered as Attorney-at-Law; joined Taniguchi Law Office Jun 2011 Representative Attorney, Taniguchi Law Office (current) Nov 2015 Outside Audit & Supervisory Board Member, Convano Inc. Aug 2017 Outside Director (Audit and Supervisory Committee Member), the Company (current) Mar 2020 Outside Director, Direct Marketing Mix Inc.

Apr 1975 Joined Hanwa Co., Ltd. Apr 2000 General Manager, Steel Plate Sales Department, Hanwa Co., Ltd. Jun 2005 Director, Hanwa Co., Ltd. Apr 2010 Managing Director, Hanwa Co., Ltd. Apr 2012 Director, Senior Managing Executive Officer, Hanwa Co., Ltd. Apr 2015 Director, Executive Vice President Executive Officer, Hanwa Co., Ltd. Apr 2017 Representative Director, Executive Vice President Executive Officer, Hanwa Co., Ltd. Jun 2019 Advisor, Hanwa Co., Ltd. Apr 2020 Advisor, the Company Jun 2020 Outside Director, the Company Jun 2025 Outside Director (Audit and Supervisory Committee Member), the Company (current)

Dec 2007 Joined Ernst & Young ShinNihon LLC Jun 2015 Joined Achiwa Accounting Office Nov 2015 Representative, Achiwa Social Insurance and Labor Consultant Office (current) Mar 2017 Representative, Achiwa Administrative Scrivener Office (current) Jun 2019 Outside Director (Audit and Supervisory Committee Member), the Company (current) Aug 2021 Audit and Supervisory Committee Member (part-time), Tokai Soft Co., Ltd. (current)