Apr 1987 Joined Arthur Andersen & Co. (now Accenture K.K.) Nov 1990 Joined CATS Software Inc. Nov 1991 Joined Salomon Brothers Asia Securities Co. (now Citigroup Global Markets Japan Inc.) Sep 1997 Joined Simplex Risk Management Inc. (now Simplex Inc.) Aug 2000 Representative Director, President, Simplex Inc. (current) Apr 2008 Director, Simplex U.S.A., Inc. (current) Jun 2008 Representative Director, President, Simplex Business Solutions Inc. (now Xspear Consulting Inc.) Dec 2016 Established the Company; Representative Director, President and CEO (current) Jun 2017 Director, Simplex Global Inc. (current) Jun 2021 Representative Director, Chairman and President, Deep Percept Inc. (current) Nov 2022 Director, SIMPLEX QUANTUM Inc. (current) Feb 2023 Joint Chairman and Director, SBI Simplex Solutions Inc. (current)

Apr 1996 Joined Andersen Consulting (now Accenture K.K.) Nov 1999 Joined ACCESS Co., Ltd. Jun 2003 Joined Accenture K.K. Jan 2005 Joined USEN Corporation Aug 2008 Joined Simplex Technology Inc. (now Simplex Inc.) Jan 2014 Managing Executive Officer, Simplex Inc. Dec 2016 Managing Director, Simplex Inc. Jan 2017 Managing Director, the Company Apr 2020 Director, Executive Vice President, Simplex Inc.; Director, Deep Percept Inc. Mar 2021 Director, Executive Vice President and Co-COO, the Company (current) Jun 2022 Director, Xspear Consulting Inc. Feb 2023 Representative Director, President, SBI Simplex Solutions Inc. (current) Jun 2023 Director, Simplex Consulting Hong Kong, Limited Jan 2024 Managing Director, SBI Securities Co., Ltd. (current) Jan 2024 Representative Director, SBI BITS Co., Ltd. Jul 2025 Director, SBI N Systems Co., Ltd. (current)

Jul 2002 Joined Accenture K.K. May 2007 Joined Simplex Technology Inc. (now Simplex Inc.) Oct 2007 Joined Accenture K.K. Mar 2011 Joined Simplex Consulting Inc. (now Simplex Inc.) Jun 2017 Managing Director, Simplex Inc. Jun 2017 Director, Simplex Business Solutions Inc. (now Xspear Consulting Inc.) Mar 2019 Director, Deep Percept Inc. (current) Apr 2020 Director, Executive Vice President, Simplex Inc. (current) Feb 2021 Representative Director, President, Xspear Consulting Inc. (current) Mar 2021 Director, Executive Vice President and Co-COO, the Company (current)

Apr 2007 Joined Simplex Technology Inc. (now Simplex Inc.) Jan 2017 Transferred to the Company Mar 2019 Audit & Supervisory Board Member, Deep Percept Inc. Mar 2021 Director and CFO, the Company (current) Feb 2023 Audit & Supervisory Board Member, SBI Simplex Solutions Inc. (current)

Apr 1980 Joined Andersen Consulting (now Accenture K.K.) Feb 2000 Representative Director, SunGard Risk & Trading Feb 2001 Joined Arthur Andersen Aug 2004 Established Elanvital Inc.; Representative Director, President (current) Jun 2014 Outside Director, Simplex Inc. Dec 2016 Outside Director, the Company Mar 2021 Outside Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1992 Joined Andersen Consulting (now Accenture K.K.) Dec 2005 Executive Partner, Accenture K.K. May 2009 Representative Director, President, Lunasentis Information Service Inc. Sep 2015 Executive Officer, Head of Communications, Media & High Tech Group, Accenture K.K. Dec 2018 Managing Executive Officer, Senior Managing Director, Accenture K.K. Dec 2022 Managing Executive Officer, Head of Industry X, Accenture K.K. Apr 2026 Joined the Company Jun 2026 Director, Executive Vice President and Co-COO, the Company

Apr 1976 Joined Nikko Securities Co., Ltd. (now SMBC Nikko Securities Inc.) Feb 2002 Executive Officer, Nikko Cordial Group Inc. (now SMBC Nikko Securities Inc.) Feb 2004 Representative Director, President, Nikko Beans Securities Co., Ltd. (now Monex Securities Co., Ltd.) Aug 2004 Representative Director, Chairman, Monex Beans Holdings, Inc. (now Monex Group, Inc.) Feb 2005 Representative Director, Vice President, Nikko Cordial Securities Inc. (now SMBC Nikko Securities Inc.) Feb 2007 Executive Vice President, Nikko Cordial Group Inc. (now SMBC Nikko Securities Inc.) Aug 2008 Director, Vice President, Nikko Citigroup Holdings Ltd. (now Citigroup Japan Holdings GK) Apr 2011 Representative Director, Chairman, Nikko System Solutions Inc. Apr 2012 Director, Nikko System Solutions Inc. Jul 2012 Audit & Supervisory Board Member, Simplex Holdings Inc. (now Simplex Inc.) (current) Jul 2012 Chairman of the Board, Simplex Asset Management Inc. (current) Dec 2016 Audit & Supervisory Board Member, the Company Mar 2021 Outside Director (Audit and Supervisory Committee Member), the Company (current) Jun 2021 Outside Director, Industrial Innovation Investment Corporation (current) Aug 2022 Director, Simplex Capital Investment Inc. (current) Jun 2024 Audit & Supervisory Board Member, Xspear Consulting Inc. (current) Jun 2024 Audit & Supervisory Board Member, Deep Percept Inc. (current)

Apr 1999 Joined Asahi Audit Corporation (now Azsa LLC), Tokyo Office Mar 2002 Registered as Certified Public Accountant Jan 2004 Joined BDO Seidman, LLP, San Francisco Office Oct 2008 Registered as U.S. Certified Public Accountant (New Hampshire) Jan 2009 Joined Advantage Partners, LLP Jan 2015 Joined Phronesis Partners Inc. Jan 2019 Partner, Phronesis Partners Inc. Nov 2019 Outside Director, ELEPHANT DESIGN HOLDINGS Inc. (current) Jun 2023 Substitute Outside Director (Audit and Supervisory Committee Member), Japan Airport Terminal Co., Ltd. (current) Mar 2025 Joined Bulpass Capital Inc. as Partner Jun 2025 Outside Director (Audit and Supervisory Committee Member), the Company (current) Apr 2026 Representative Director, Bulpass Capital Inc. (current)

Oct 2002 Appointed Public Prosecutor Mar 2011 Registered as Attorney-at-Law Jan 2017 Joined Authense Law Office (current) Jun 2022 Outside Audit & Supervisory Board Member, Sidax Co., Ltd. Jun 2023 Outside Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1984 Joined Nippon Kogyo Bank (now Mizuho Bank, Ltd.) Apr 2012 Executive Officer, Mizuho Securities Co., Ltd. Apr 2015 Managing Executive Officer, Mizuho Securities Co., Ltd. Apr 2015 Managing Executive Officer, Mizuho Financial Group, Inc. Apr 2017 Senior Managing Executive Officer, Mizuho Securities Co., Ltd. Apr 2021 Vice President and Executive Officer, Mizuho Securities Co., Ltd. Apr 2022 Director, Mizuho Securities Co., Ltd. Jul 2022 Outside Director (Audit and Supervisory Committee Member), the Company (current) Nov 2025 Outside Director, Kasumigaseki Capital Co., Ltd. (current)

Apr 1981 Joined Mitsubishi Bank, Ltd. (now MUFG Bank, Ltd.) Jun 2009 Executive Officer, MUFG Bank, Ltd. Apr 2011 Director and Vice President, Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. Apr 2011 Managing Executive Officer, Mitsubishi UFJ Securities Holdings Co., Ltd. Jul 2012 Managing Executive Officer, Mitsubishi UFJ Financial Group, Inc. May 2014 Managing Executive Officer, Bank of Tokyo-Mitsubishi UFJ, Ltd. (now MUFG Bank, Ltd.) May 2015 Senior Managing Director, Bank of Tokyo-Mitsubishi UFJ, Ltd. (now MUFG Bank, Ltd.) Jun 2015 Executive Managing Director, Mitsubishi UFJ Financial Group, Inc. Jun 2017 Director (Audit and Supervisory Committee Member), Bank of Tokyo-Mitsubishi UFJ, Ltd. (now MUFG Bank, Ltd.) Jun 2019 Director, Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. Jun 2021 Chairman of the Board, Chitose Corporation Jul 2021 Outside Director (Audit and Supervisory Committee Member), the Company (current) Jun 2023 Outside Director, Omikenshi Co., Ltd. (current) Jun 2025 Outside Director, The Yamagata Bank, Ltd. (current)