Jul 1997: Joined the Company Apr 2003: Executive Officer, General Manager of Planning Division Jun 2004: Director, General Manager of Planning Division Apr 2009: Director, General Manager of Management Division Apr 2010: Director, Vice President Jun 2010: Representative Director, President (current) Principal concurrent positions: Representative Director and Chairman, SANKO FASTEM (THAILAND) LTD.; Chairman of the Board, Sanko Shoji Advisory Co., Ltd. (Taiwan); Director and Chairman, SANKO FASTEM (VIETNAM) LTD.; Representative Director and Chairman, Urawa Denken Co., Ltd.; Representative Director and Chairman, Seiko Sangyo Co., Ltd.; Director and Chairman, Suiko Co., Ltd.; Representative Director and Chairman, Nihon Mechanic Co., Ltd.; Representative Director and Chairman, WDS Co., Ltd.; Representative Director and Chairman, Shinko Nylon Co., Ltd.; Representative Director and Chairman, Koyo Co., Ltd.; Representative Director and Chairman, Akiya Denki Co., Ltd.; Representative Director and Chairman, Kofu Seiho Co., Ltd.

Apr 1984: Joined Sanko Shoji Co., Ltd. (now the Company) Apr 1996: Director, General Manager of Development Division Apr 1998: Director, General Manager of Sales Division Apr 2005: Director, General Manager of New Business Promotion Division Apr 2007: Director, General Manager of New Business Division Apr 2009: Director, General Manager of Renewal Business Division Apr 2010: Managing Director, in charge of Renewal Business and Technology Development Apr 2013: Managing Director, in charge of Renewal Business and Technology Development Apr 2015: Managing Director, in charge of Development Apr 2016: Managing Director Apr 2018: Managing Director; General Manager, Technical Research Institute (current)

May 1986: Joined Sanko Shoji Co., Ltd. (now the Company) Apr 1994: General Manager, Kagoshima Sales Office Oct 2003: General Manager, Fukuoka Branch Apr 2009: General Manager, West Japan Sales Department, Fastening Business Division Apr 2010: Executive Officer, General Manager of Fastening Sales Division Apr 2015: Executive Officer, Deputy General Manager of Sales Division Apr 2020: Executive Officer, General Manager of Fastening Business Division Apr 2023: Executive Officer, General Manager of Fastening Business Division Jun 2023: Director; General Manager, Fastening Business Division (current) Principal concurrent positions: Representative Director, IKK Co., Ltd.; Director, Shinko Nylon Co., Ltd.

Nov 1997: Joined the Company Apr 2007: Section Manager, ACT Sales Department, TCM Business Division Apr 2010: General Manager, Material Sales Department, Renewal Business Division Apr 2015: Executive Officer, General Manager of Functional Materials Division Jun 2023: Executive Officer, General Manager of Functional Materials Business Division Jun 2025: Director; General Manager, Functional Materials Business Division (current) Principal concurrent positions: Representative Director, Suiko Co., Ltd.; Representative Director, Urawa Denken Co., Ltd.; Director, WDS Co., Ltd.; Director, Koyo Co., Ltd.; Representative Director, Akiya Denki Co., Ltd.

Apr 1997: Joined the Company Apr 2009: General Manager, Business Planning Department, Management Division Apr 2015: Executive Officer, General Manager of Management Division Apr 2022: Executive Officer, General Manager of Project Management Division Apr 2025: Executive Officer; General Manager, Corporate Planning Office and Strategy Promotion Office Jun 2025: Director; General Manager, Corporate Planning Office and Strategy Promotion Office (current) Principal concurrent positions: Representative Director, E-Optimize Co., Ltd.

Apr 1977: Joined the Board of Audit of Japan Dec 1999: Deputy Chief, Foreign Affairs Audit Section, First Bureau, Board of Audit of Japan Apr 2007: Chief Deputy, Land and Transport Audit Section No. 2, Third Bureau, Board of Audit of Japan Apr 2010: Chief Investigator, Land and Transport Audit Section No. 2, Third Bureau, Board of Audit of Japan Apr 2014: Policy Planning Investigator, Public Interest Corporation Administration Office and Secretariat of the Public Interest Certification Committee, Cabinet Office Jun 2018: Director, Audit and Supervisory Committee Member (current)

Apr 1991: Associate Professor, Faculty of Business Administration, Meijo University Apr 1993: Associate Professor, Faculty of Management and Economics, Aomori Public University Aug 1995: Ph.D. (Economics), Tohoku University Apr 1998: Professor, Faculty of Business Administration, Aoyama Gakuin University (current) Jun 2000: Director, Ishihara Machinery Co., Ltd. (now IKK Co., Ltd.) Jun 2005: Director, the Company Jun 2018: Director, Audit and Supervisory Committee Member (current)

Dec 2009: Registered as Attorney-at-Law Jan 2010: Joined Kikuchi Sogo Law Office Jan 2011: Joined Houterasu Tokushima Law Office Jan 2013: Joined Watanabe Kazuki Law Office Sep 2021: Head, Nagareyama Sogo Law Office (current) Jun 2022: Director, Audit and Supervisory Committee Member (current)