Mar 1977 Joined the Air Self-Defense Force, Japan Defense Agency Jun 1983 Joined the Company Dec 1992 Representative Director, Hosoya Enterprise Co., Ltd. Jun 2006 Director of the Company Jun 2007 Director, Head of Tokyo Sales Office Oct 2008 Senior Managing Director, Head of Tokyo Sales Office Jun 2013 Representative Director, President (current)

Mar 2010 Completed Master's Program, Department of Mechanical Engineering, Graduate School, Ashikaga Institute of Technology; Master of Engineering Apr 2010 Enrolled as Research Student, Department of Mechanical Engineering, Graduate School, Ashikaga Institute of Technology Mar 2011 Completed Research Student Program, Department of Mechanical Engineering, Graduate School, Ashikaga Institute of Technology Apr 2011 Joined the Company Jan 2017 Sales Section Manager Jun 2017 Director Jun 2018 Outside Director, Hosoya Enterprise Co., Ltd. (current) Nov 2019 Director, Plant Manager, Kusabana Plant Apr 2023 Director, Vice President Apr 2024 Representative Director, Vice President (current)

Apr 1981 Joined Nihon Carlit Co., Ltd. Apr 2009 Plant Manager, Akagi Plant, Nihon Carlit Co., Ltd. Jun 2024 Joined the Company Jun 2024 Chief Engineer, Plant Jun 2025 Director (current)

Jan 1996 Established management consulting practice Apr 2005 Registered as Certified Public Accountant (current) Feb 2006 Registered as Certified Tax Accountant (current) Aug 2007 Representative Partner, Asunaro Audit Corporation (current) Jun 2015 Outside Director (Audit and Supervisory Committee Member), ITFOR Inc. Jun 2015 Director of the Company (current)

Apr 1981 Joined the Company Dec 2003 General Manager, Quality Assurance Department Apr 2006 General Manager, Materials Department Jun 2007 Director, General Manager, Materials Department Oct 2008 Director, Plant Manager and General Manager, Technology Development Center Aug 2009 Director, Plant Manager Jun 2013 Managing Director Oct 2019 Advisor, Director Jun 2023 Full-time Audit & Supervisory Board Member (current)

Apr 1983 Director, Shimura Denset Co., Ltd. Jan 1992 Representative Director, President, Shimura Denset Co., Ltd. (current) Jun 2002 Audit & Supervisory Board Member of the Company (current)

May 1976 Registered as Certified Tax Accountant Head, Yukio Ebata Tax Accountant Office (current) Mar 1982 Registered as Certified Public Accountant Head, Ebata Certified Public Accountant Office Nov 2014 Audit & Supervisory Board Member, Nippon Land and Building Private Lease Investment Corporation (currently Chuo Nippon Land Private Lease Investment Corporation) Jun 2026 Audit & Supervisory Board Member of the Company (current)