Mar 1958 Joined P.S. Concrete Co., Ltd. Jan 1968 Joined Shin-Kozo Gijutsu Co., Ltd. Jan 1981 Representative Director, President, Shin-Kozo Gijutsu Co., Ltd. Dec 1981 Representative Director, President, the Company Jan 1993 Established Yugen Kaisha N-SEC, Director Jun 2001 Established Angelo-SEC Co., Ltd., Representative Director, President Jun 2008 Representative Director, Chairman, Angelo-SEC Co., Ltd. Apr 2009 Director, Asahi Kogyo Co., Ltd. (now A&K Honshu Co., Ltd.) Jan 2010 Director, Kyoei Co., Ltd. (now A&K Honshu Co., Ltd.) (current) Apr 2010 Representative Director, Yugen Kaisha N-SEC (current) May 2012 Director, SE Repair Co., Ltd. (current) Jun 2013 Representative Director, President and Executive Officer, the Company Apr 2014 Director, Tekken Kogyo Co., Ltd. (now SE Tekken Co., Ltd.) May 2014 Representative Director, CEO, Angelo-SEC Co., Ltd. (current) Apr 2015 Director, Morita Kogyo Co., Ltd. (now SE Tekken Co., Ltd.) (current) Jun 2015 Representative Director, Chairman and Executive Officer, Chairman, SE Group CEO, the Company (current) Dec 2015 Director, Nakagawa Tekkosho Co., Ltd. (now SE Tekken Co., Ltd.)

Apr 1977 Joined Mitsubishi Corporation Apr 2009 Executive Officer, General Manager, Development and Construction Division, Mitsubishi Corporation Jun 2013 Director, Executive Vice President, Asahi Kizai Co., Ltd. Jun 2017 Advisor, Asahi Kizai Co., Ltd. Oct 2017 Advisor, the Company Apr 2018 Executive Officer, General Manager, Corporate Planning Office, the Company Jun 2018 Director, Executive Officer, General Manager, Corporate Planning Office, the Company Jun 2019 Director, A&K Honshu Co., Ltd. (current) Jun 2019 Director, SE Repair Co., Ltd. (current) Jun 2019 Director, SE Tekken Co., Ltd. (current) Jun 2019 Representative Director, President and Executive Officer, COO, the Company Apr 2024 Representative Director, President and Executive Officer, COO, General Manager, Atsugi Research Institute, the Company (current)

Apr 1971 Joined Mitsubishi Corporation Jun 2005 Representative Director, President, Nitto Toshi Kaihatsu Co., Ltd. Oct 2007 Director, Executive Vice President and Executive Officer, Mitsubishi Shoji Toshi Kaihatsu Co., Ltd. Jun 2008 Executive Vice President and Executive Officer, Mitsubishi Shoji Toshi Kaihatsu Co., Ltd. Jan 2010 Joined SE Asahi Co., Ltd. (now A&K Honshu Co., Ltd.) Jun 2010 Senior Managing Director, SE Asahi Co., Ltd. (now A&K Honshu Co., Ltd.) Jan 2012 Senior Managing Director, SE A&K Co., Ltd. (now A&K Honshu Co., Ltd.) Jun 2012 Representative Director, President, SE A&K Co., Ltd. (now A&K Honshu Co., Ltd.) (current) Jun 2019 Director, Executive Officer, the Company Jun 2021 Director, Senior Managing Executive Officer, in charge of Production, the Company Apr 2023 Director, Senior Managing Executive Officer, in charge of Group Management, the Company Jun 2023 Director, Executive Officer, Executive Vice President, in charge of Group Management, the Company (current) Jun 2023 Director, Angelo-SEC Co., Ltd. (current) Jun 2023 Director, SE Repair Co., Ltd. (current) Jun 2023 Director, SE Tekken Co., Ltd. (current)

Jul 1987 Joined Chigin Seimei Jutaku Loan Co., Ltd. Oct 1996 Joined the Company Oct 2005 General Manager, General Affairs Department, Administration Division, the Company Jun 2013 Statutory Auditor, Angelo-SEC Co., Ltd. Apr 2014 Deputy General Manager, Administration Division and General Manager, General Affairs Department, the Company Apr 2017 Executive Officer, Deputy General Manager, Administration Division and General Manager, General Affairs Department, the Company Apr 2018 Director, A&K Honshu Co., Ltd. (current) Jun 2019 Director, Executive Officer, General Manager, Administration Division and General Affairs Department, the Company Jun 2019 Director, Angelo-SEC Co., Ltd. (current) Mar 2020 Director, Korea SE Co., Ltd. Apr 2020 Director, Executive Officer, General Manager, Administration Division, the Company Jun 2021 Director, Managing Executive Officer, in charge of Administration, General Manager, Administration Division, the Company (current) Jun 2025 Statutory Auditor, SE Repair Co., Ltd. (current)

Apr 1998 Joined the Company Apr 2015 General Manager, Osaka Branch, Sales Coordination Division, the Company Jun 2017 Executive Officer, General Manager, Osaka Branch, Sales Division, the Company Oct 2018 Executive Officer, Deputy General Manager, Sales Division and General Manager, Osaka Branch, the Company Apr 2020 Executive Officer, General Manager, Sales Division, the Company Jun 2020 Director, Executive Officer, General Manager, Sales Division, the Company Jun 2021 Director, Executive Officer, in charge of Sales, General Manager, Sales Division, the Company Apr 2023 Director, Executive Officer, in charge of Sales, General Manager, Sales Division and General Manager, SCON Business Division, the Company Apr 2026 Director, Managing Executive Officer, in charge of Sales, General Manager, Sales Division, General Manager, SCON Business Division and General Manager, New Business Development Department, the Company (current)

Apr 1992 Joined Oka Sochi Kogyo Co., Ltd. Aug 1994 Joined the Company Apr 2009 General Manager, Yamaguchi Plant, Production Division, the Company Apr 2014 Representative Director, Tekken Kogyo Co., Ltd. (now SE Tekken Co., Ltd.) Apr 2015 Executive Officer, General Manager, Production Division and General Manager, Yamaguchi Plant, the Company Apr 2015 Director, Morita Kogyo Co., Ltd. (now SE Tekken Co., Ltd.) Jul 2015 Representative Director, President, SE Tekken Co., Ltd. (current) Dec 2015 Representative Director, President, Nakagawa Tekkosho Co., Ltd. (now SE Tekken Co., Ltd.) Apr 2016 Executive Officer, General Manager, Production Division, the Company Jun 2017 Director, Executive Officer, General Manager, Production Division, the Company Jun 2019 Executive Officer, the Company Jun 2022 Director, Executive Officer, the Company Apr 2023 Director, Executive Officer, in charge of Production, the Company Apr 2025 Director, Executive Officer, in charge of Production, General Manager, Production Division, the Company (current)

Apr 1967 Joined Sapporo Breweries Ltd. Mar 2000 Director, Sapporo Breweries Ltd. Mar 2002 Senior Managing Director, Sapporo Breweries Ltd. Mar 2004 Representative Director, President, Sapporo Beverage Co., Ltd. Apr 2008 Representative, I&O Marketing (established) (current) Apr 2009 Visiting Professor, Gunma University (national university corporation) Apr 2010 Professor, Faculty of Economics and Business Administration, Nagaoka University Apr 2011 Director, Otsuma Gakuin (school corporation) Apr 2012 Director, Japan Olive Association (general incorporated association) Jun 2012 Outside Director, Harunavi Beverage Co., Ltd. Apr 2014 Lecturer, Gunma University (national university corporation) (current) Jun 2015 Outside Director, the Company (current) Apr 2019 Representative Director, Japan Business Science Association (general incorporated association) (current) Apr 2020 Senior Managing Director, Haruna Bijutsu (general incorporated association) Mar 2021 Representative Director, Haruna Bijutsu (general incorporated association) Jun 2024 Auditor, Japan Handicraft Artists Federation (public interest incorporated foundation) (current)

Apr 1977 Marubosei Co., Ltd. Sep 1985 Joined Nihon Time Share K.K. Jan 1990 Director, AT&T Jens K.K. Dec 1999 Representative Director and Executive Vice President, Global Crossing Japan K.K. Nov 2002 Managing Executive Officer, Vodafone K.K. Nov 2006 Managing Executive Officer, SoftBank Mobile Corp. Nov 2008 Senior Managing Director, Intec Inc. Apr 2013 Director, Sigmaxis Inc. Feb 2014 Director, Japan Information System Consultants Association (NPO) Jun 2016 Chairman of the Board, IUK Inc. Jul 2018 Representative Director, Field Consulting Group Inc. (current) Jul 2018 Director, Genext Inc. Aug 2018 Director, MPG Inc. Jun 2019 Director, IT Coordinator Association (NPO) (current) Jun 2019 Outside Director of the Company (current) Jun 2025 Chairman, Japan Information System Consultants Association (NPO) (current)

Aug 1997 Joined the Company Apr 2009 General Manager, Osaka Branch, Sales Coordination Division, the Company Apr 2015 Executive Officer, Deputy General Manager, Sales Coordination Division and General Manager, Sales Administration Department, the Company Apr 2015 Advisor, SE Repair Co., Ltd. May 2015 Representative Director, President, SE Repair Co., Ltd. Nov 2016 Executive Officer, Deputy General Manager, Sales Coordination Division and General Manager, Sales Planning Department, the Company Apr 2018 Executive Officer, the Company Jun 2024 Full-time Statutory Auditor, the Company (current) Jun 2025 Statutory Auditor, A&K Honshu Co., Ltd. (current)

Apr 1985 Full-time Lecturer, College of Industrial Technology, Nihon University Apr 1991 Associate Professor, College of Industrial Technology, Nihon University Apr 1994 Professor, College of Industrial Technology, Nihon University Oct 1994 Visiting Research Professor, Boston University, USA Apr 2000 Professor, Technology Management Course, Graduate School of Global Business, Nihon University Jun 2004 Outside Statutory Auditor, the Company (current) Apr 2010 Professor, Faculty of Economics, Tokyo Shibuya Campus, Nihon Keizai University; Head, Preparatory Office for Graduate School, Nihon Keizai University Apr 2012 Dean, Faculty of Economics, Nihon Keizai University; Dean, Graduate School of Business Administration, Nihon Keizai University Apr 2016 Member, Committee for Development of Information Network Systems, National Federation of Small Business Associations Apr 2021 Director and Honorary Chairman, Japan Competitive Intelligence Society (nonprofit organization) Oct 2021 Representative Director, DKY Co., Ltd. (current) Apr 2022 Director, Japan Business Intelligence Association (current)

Apr 1993 Associate Professor, Faculty of Commerce, Nagoya University of Commerce and Business Apr 1995 Associate Professor, Faculty of Social Information Studies, Gunma University Jun 2001 Outside Statutory Auditor, the Company (current) Apr 2002 Professor, Faculty of Social Information Studies, Gunma University Nov 2005 Statutory Auditor, Koshidaka Co., Ltd. (now Koshidaka Holdings Co., Ltd.) Apr 2011 Professor, Career Education Center, Otsuma Women's University (current) Apr 2012 Professor Emeritus, Gunma University (national university corporation) (current) Nov 2015 Outside Director, Koshidaka Holdings Co., Ltd. Nov 2019 Outside Director, Curves Holdings Co., Ltd. (current) Oct 2023 Outside Statutory Auditor, T2 Co., Ltd. (current)