Mar 1991 Director, NK Planning Co., Ltd. (now NK Holdings Co., Ltd.) (current) Jun 1994 Director of the Company Apr 1997 Representative Director, Voice Mail Co., Ltd. (now New Foria Creates Co., Ltd.) Jun 1999 Managing Director May 2001 Senior Managing Director Dec 2002 Representative Director, NTC Co., Ltd. Apr 2003 Vice President, Director Jun 2004 Representative Director, Executive Vice President; COO Apr 2005 Representative Director, President; COO Apr 2015 Representative Director, President; CEO Apr 2023 Representative Director, President; CEO and COO Jan 2024 Director, HN Holdings Co., Ltd. (current) Jun 2024 Representative Director, President, Chairman of the Board of Directors; CEO; COO (current)

Nov 1977 Founded the Company; Director Nov 1980 Representative Director, President Dec 1988 Director, Yugen Kaisha NK Kosan (now NK Holdings Co., Ltd.) (current) Jun 1992 Representative Director, Chairman and President Jun 2004 Representative Director, Chairman and President; CEO Apr 2005 Representative Director, Chairman; CEO Apr 2015 Representative Director, Chairman; Chairman of the Board of Directors Jun 2024 Director, Chairman (current)

Apr 1978 Joined Ministry of International Trade and Industry (now Ministry of Economy, Trade and Industry) Jul 2008 Director-General, Industrial Science and Technology Policy and Environment Bureau, METI Jul 2010 Director-General, Manufacturing Industries Bureau, METI Aug 2011 Commissioner, Small and Medium Enterprise Agency Jun 2013 Retired from METI Oct 2013 Adviser, JGC Corporation (now JGC Holdings Corporation) Jul 2014 Director, Executive Officer; Acting General Manager, Sales Division, JGC Corporation (now JGC Holdings Corporation) Sep 2014 Director, MJS M&A Partners Co., Ltd. Jun 2016 Director, Managing Executive Officer; Acting General Manager, Global Strategy Office, JGC Corporation (now JGC Holdings Corporation) Jun 2018 Outside Director, Nagano Keiki Co., Ltd. (current) Oct 2020 Outside Director, United Semiconductor Japan Co., Ltd. (current) May 2021 Chairman, Director, MJS M&A Partners Co., Ltd. Jun 2021 Director of the Company Jun 2022 Vice Chairman; in charge of DX Business Strategy Office Apr 2023 Vice Chairman; in charge of DX Business Strategy Office and Compliance Promotion Apr 2024 Vice Chairman; Compliance Promotion; General Manager, Internal Control Office (current)

Apr 1991 Joined the Company May 2001 Eastern Japan in charge, Sales Division; Head, Nagoya Third Branch, Nagoya Regional Office Apr 2002 General Manager, Chubu-Hokuriku Area, Sales Division; Head, Nagoya Second Branch, Nagoya Regional Office Apr 2005 General Manager, Northeast Area, Sales Division; Head, Saitama Second Branch, Saitama Regional Office Apr 2006 Head, Kanto-Koshinetsu Branches, Corporate Solutions Business Division, Sales Division Apr 2009 Head, Nagoya Branch; General Manager, Chubu Area, Accounting Firm Channel and Package Business Division Apr 2012 Deputy General Manager, Chubu-Hokuriku Area; Head, Nagoya Branch, Accounting Firm Channel and Package Business Division Apr 2014 General Manager, Chubu-Hokuriku Area, Sales Division Apr 2015 Executive Officer; General Manager, Chubu-Hokuriku Area, Sales Division Apr 2016 Executive Officer; General Manager, Metropolitan Area, Sales Division Apr 2020 Managing Executive Officer; Deputy Head, Sales Division; General Manager, Sales Promotion Department Mar 2023 Managing Executive Officer; Deputy Head, Sales Division; General Manager, Sales Promotion Department and Northeast Area Apr 2023 Managing Executive Officer; Head, Sales Division Jun 2023 Director, Managing Executive Officer; Head, Sales Division Apr 2026 Director, Managing Executive Officer; Head, Sales Division; in charge of Product Development and Support Division (current)

Apr 1989 Joined the Company Apr 2002 Section Manager, Accounting and Control Group, Management Administration Department, Management Administration Division Apr 2006 General Manager, Accounting Group, Management Administration Division Apr 2008 General Manager, Accounting and Finance Department, Management Administration Division Apr 2015 Executive Officer; General Manager, Finance Department, Management Administration Division; Head, Accounting Group Apr 2017 Executive Officer; Deputy Head, Management Administration Division; General Manager, Finance Department Apr 2018 Executive Officer; Deputy Head, Management Administration Division; General Manager, Finance Department and Human Resources and General Affairs Department; Head, Human Resources Group Apr 2020 Executive Officer; Deputy Head, Management Administration Division; General Manager, Management Administration Department Apr 2024 Managing Executive Officer; Head, Management Administration Division; General Manager, Management Administration Department; CFO; CIO Apr 2025 Managing Executive Officer; Head, Management Administration Division; CFO; CIO Jun 2025 Director, Managing Executive Officer; Head, Management Administration Division; CFO; CIO (current)

Apr 1981 Joined the Company Apr 1992 General Manager, CS Department, Development Division Oct 1996 General Manager, Development Planning Department, Development Division Jun 1999 Director, Deputy Head, Planning and Development Division (in charge of development) Apr 2002 Executive Officer; General Manager, Corporate Management Systems Business Division, Sales Division Apr 2004 Executive Officer; General Manager, Accounting Firm Channel Business Division, Sales Division Apr 2006 Managing Executive Officer; Head, Marketing Division Apr 2007 Managing Executive Officer; Head, Development and Support Division Jun 2008 Director, Managing Executive Officer; Head, Development and Support Division Apr 2009 Director, Managing Executive Officer; Head, Solutions Business Division Jun 2012 Managing Director; Head, Solutions Business Division Apr 2014 Managing Director; Head, Development Division Apr 2015 Director; Acting Director, Tax and Accounting Systems Research Institute Apr 2024 Director; Acting Director, Tax and Accounting Systems Research Institute; General Manager, BPR Promotion Office Apr 2026 Director; Acting Director, Tax and Accounting Systems Research Institute; in charge of BPR Promotion Office (current)

Apr 1972 Joined Ministry of Finance (now Ministry of Finance) Jul 1996 Section Chief, Research Section, Banking Bureau, Ministry of Finance Jun 1998 Director, Inspection Department, Financial Supervisory Agency Jul 2000 Director-General, Secretariat of the Securities and Exchange Surveillance Commission, Financial Services Agency Jul 2001 Director-General, Inspection Bureau, Financial Services Agency Jul 2002 Director-General, Supervisory Bureau, Financial Services Agency Jul 2004 Commissioner, Financial Services Agency Jul 2007 Left Financial Services Agency Oct 2007 Adviser, Nishimura & Asahi Oct 2009 Chairman, PricewaterhouseCoopers Research Institute Co., Ltd. Nov 2009 Special Invited Professor, Aoyama Gakuin University (current) Jun 2011 Audit & Supervisory Board Member of the Company Jan 2014 Advisor, Nishimura & Asahi Sep 2014 Audit & Supervisory Board Member, MJS M&A Partners Co., Ltd. (current) Feb 2015 Senior Advisor, Boston Consulting Group Jun 2015 Outside Director, Aida Engineering, Ltd. (current) Jun 2016 Outside Director, Infoteria Corporation (now Asteria Corporation) (current) Jun 2016 Director of the Company (current) Jun 2019 Outside Director, ZUU Co., Ltd. (current) Jun 2020 Outside Director, Fukushima Bank, Ltd. Feb 2022 Chairman of the Board, Shinsei Bank, Ltd. (now SBI Shinsei Bank, Ltd.)

Apr 1972 Joined Ministry of International Trade and Industry (now Ministry of Economy, Trade and Industry) Jun 2004 Director-General, Economic and Industrial Policy Bureau, METI Jul 2006 Vice-Minister, METI Jul 2008 Retired from METI Oct 2008 Special Adviser, Nippon Life Insurance Company Jun 2010 Outside Director, Kobe Steel, Ltd.; Outside Audit & Supervisory Board Member, Marubeni Corporation Jun 2013 Outside Director, Marubeni Corporation Jun 2014 Outside Director, Seiren Co., Ltd. (current); Outside Director, Zeon Corporation (current) Apr 2020 President, Kaishi Professional University, Niigata Sogo Gakuin Educational Corporation Jun 2022 Director of the Company (current) Apr 2025 Honorary President and Specially Appointed Professor, Kaishi Professional University (current) Jul 2025 Representative Director, Center for International Economic Partnership Promotion, General Incorporated Foundation (current)

Apr 1986 Professor, Faculty of Law, Dokkyo University Apr 1991 Professor, School of Commerce, Waseda University May 2003 Registered as attorney-at-law Jul 2003 Adviser, MJS Tax and Accounting Systems Research Institute (current) Apr 2004 Professor, Law School, Nihon University Jun 2010 Outside Director, Oki Electric Industry Co., Ltd. Jun 2015 Auditor, Hideo Yoshida Memorial Foundation Apr 2017 Visiting Professor, Law School, Nihon University Apr 2018 Professor, Ohara Graduate School of Accounting (current) Sep 2020 Principal, Life Insurance Underwriting Academy (current) Apr 2021 President, Ohara Graduate School of Accounting (current) Jun 2022 Director of the Company (current)

Mar 2003 Completed Master's Program, Graduate School of Commerce, Waseda University Mar 2006 Completed credit requirements and withdrew from Doctoral Program, Graduate School of Commerce, Waseda University Apr 2006 Associate Professor, Faculty of Business Administration and Information Sciences, Tama University Aug 2006 Visiting Researcher, MJS Tax and Accounting Systems Research Institute (current) Apr 2007 Associate Professor, Faculty of Business Administration and Information Sciences, Tama University Apr 2009 Associate Professor, Faculty of Commerce, Senshu University Apr 2012 Associate Professor, School of Commerce, Waseda University Apr 2016 Professor, School of Commerce, Waseda University (current) Jun 2023 Director of the Company (current); Outside Director (Audit and Supervisory Committee Member), Keio Corporation (current)

Oct 2007 Joined Yayoi Co., Ltd. Jan 2017 Director; General Manager, Development Division and Customer Service Division, Yayoi Co., Ltd. Dec 2018 Representative Director, President, Misoca Inc. Aug 2021 Director, in charge of Product; General Manager, Product Organization Development Division, Bizreach, Inc. Feb 2023 Director, Easy Soft Co., Ltd. Jul 2024 Senior Executive Officer; CIO, Core Concept Technologies Inc. Apr 2026 Managing Executive Officer; General Manager, Product Development and Support Division; Head of Development Control Office; CTO, the Company (current)

Nov 1985 Joined the Company Oct 1997 General Manager, Ikebukuro Branch, Sales Division Apr 2004 General Manager, Northeast Area, Sales Division Oct 2004 Executive Officer; General Manager, Northeast Area, Sales Division Apr 2006 Executive Officer; General Manager, Support Center, Marketing Division Apr 2011 Executive Officer; General Manager, Internet Business Promotion Department Apr 2012 Executive Officer; General Manager, Business Improvement Promotion Office, Management Administration Division Apr 2015 Executive Officer; General Manager, Internal Audit Office Jun 2020 Full-time Audit & Supervisory Board Member (current)

Apr 1969 Appointed Public Prosecutor, Tokyo District Public Prosecutors Office Mar 1984 Counselor, Judicial Legislation Research Department, Minister's Secretariat, Ministry of Justice Apr 1996 Chief Public Prosecutor, Oita District Public Prosecutors Office Jul 1997 Public Prosecutor, Supreme Public Prosecutors Office Dec 1997 Secretary-General, Minister's Secretariat, Ministry of Justice Jan 2002 Vice-Minister of Justice Jun 2004 Chief Public Prosecutor, Tokyo High Public Prosecutors Office Jun 2006 Prosecutor-General Jul 2008 Registered as attorney-at-law May 2009 Outside Director, AEON Co., Ltd. Jun 2009 Outside Director, Daiwa Securities Group Inc. Jul 2009 Outside Audit & Supervisory Board Member, Nippon Life Insurance Company Jun 2012 Outside Audit & Supervisory Board Member, Fujita Corporation Jun 2016 Part-time Audit & Supervisory Board Member of the Company (current) Jun 2017 Outside Director, RSC Inc. (current) Jul 2022 Outside Director (Audit and Supervisory Committee Member), Nippon Life Insurance Company (current)

Apr 1981 Joined Ministry of Finance Jul 2002 Counselor, General Affairs and Planning Bureau, Financial Services Agency Jul 2004 Planning Officer, Financial Bureau, Ministry of Finance Jul 2005 Director, Policy Finance Division, Minister's Secretariat, Ministry of Finance Sep 2007 Director, Document Division, Minister's Secretariat, Ministry of Finance Jul 2009 Deputy Director-General, Budget Bureau, Ministry of Finance Jun 2013 Director, Accounting Center and Director, Policy Research Institute for Public Finance, Ministry of Finance Jul 2014 Director-General, Financial Bureau, Ministry of Finance Jul 2015 Commissioner, National Tax Agency Jun 2016 Retired from Ministry of Finance Oct 2016 Joined Shinkin Central Bank Jun 2017 Outside Director, Sigmaxyz Inc. (now Sigmaxyz Holdings Inc.) Jun 2022 Deputy Chairman and Representative Director, Shinkin Central Bank Jun 2024 Outside Director (full-time Audit and Supervisory Committee Member), Sigmaxyz Holdings Inc. (current); Part-time Audit & Supervisory Board Member of the Company (current)