Apr 1998 Joined System Management Co., Ltd. Jan 2001 Joined K-Soft Co., Ltd. Jun 2003 Established Interfactory Ltd. (Yugen Kaisha) Jul 2006 Reorganized as Interfactory Co., Ltd.; appointed Representative Director, President and CEO (current)

Apr 2001 Joined Admaps Co., Ltd. Sep 2001 Joined K-Soft Co., Ltd. Jan 2006 Joined the Company; appointed General Manager, System Solutions Department Dec 2006 Appointed Director of the Company (current) Dec 2006 Responsible for EBISUMART business (current)

Apr 2005 Joined Triax Co., Ltd. Sep 2005 Established Zencube Co., Ltd.; appointed Representative Director Feb 2008 Established AT Partners Co., Ltd.; appointed Representative Director Dec 2010 Established Altlist Co., Ltd.; appointed Representative Director Mar 2013 Joined the Company; appointed General Manager, Management Planning Department Mar 2013 Appointed Director and CMO of the Company (current) Mar 2013 Responsible for EC Business Growth Support (current)

Apr 1989 Joined Rengo Co., Ltd. Oct 1991 Joined Asahi Shinwa Audit Firm (now Azusa Audit LLC) Apr 1995 Registered as Certified Public Accountant Oct 1998 Registered as Certified Tax Accountant Mar 2004 Became Partner, ARK Audit Corporation (now ARK Audit LLC) Mar 2013 Appointed Audit & Supervisory Board Member of the Company Jun 2014 Appointed General Manager, Corporate Development Department (current) Aug 2014 Appointed Director and CFO of the Company (current) Aug 2014 Responsible for Administration, Finance and IT Systems (current)

Nov 1996 Joined Asahi Audit Corporation (now Azusa Audit LLC) Apr 2000 Registered as Certified Public Accountant Dec 2010 Registered as Attorney-at-Law (Tokyo Bar Association); joined Hayabusa Asuka Law Office Jul 2013 Opened Chiyoda International Law and Accounting Office; appointed Director (current) Aug 2015 Appointed Outside Director, Central Sogo Kaihatsu Co., Ltd. (current) Oct 2015 Appointed Part-time Audit Member, Northern Territories Issue Association Aug 2021 Appointed Director of the Company (current) Jul 2024 Appointed Part-time Audit Member, Pharmaceuticals and Medical Devices Agency (current)

Apr 1981 Joined Hokkaido Takushoku Bank Apr 1998 Joined Nihon Kosoku Tsushin Co., Ltd. (now KDDI Corporation) Oct 2014 Seconded to au Financial Service Co., Ltd.; appointed Full-time Audit & Supervisory Board Member Jun 2018 Appointed Manager, Audit Department, Risk Management Division, KDDI Corporation Jun 2018 Appointed Part-time Audit & Supervisory Board Member, Eyelet Inc. Jun 2018 Appointed Part-time Audit & Supervisory Board Member, Kokusai Cable Ship Co., Ltd. (now KDDI Cable Ship Co., Ltd.) Jun 2018 Appointed Part-time Audit & Supervisory Board Member, Stream Co., Ltd. Jun 2018 Appointed Part-time Audit & Supervisory Board Member, au Insurance Co., Ltd. Apr 2019 Appointed Part-time Audit & Supervisory Board Member, au Jibun Bank Co., Ltd. Jun 2019 Appointed Part-time Audit & Supervisory Board Member, KDDI Digital Design Corporation Mar 2020 Appointed Part-time Audit & Supervisory Board Member, Royalty Marketing Co., Ltd. Apr 2021 Appointed Outside Audit & Supervisory Board Member, au Kabucom Securities Co., Ltd. Jun 2022 Appointed Part-time Audit & Supervisory Board Member, Natasha Co., Ltd. Aug 2023 Appointed Director of the Company (current)

Jul 1982 Joined Tokyo Chusho Kigyo Doyukai Feb 1986 Joined Suzuki Denko Co., Ltd. (now Suzuden Co., Ltd.) Jun 1999 Appointed Director, Suzuden Co., Ltd. Jun 2008 Appointed Full-time Audit & Supervisory Board Member, Suzuden Co., Ltd. Jul 2014 Appointed Full-time Audit & Supervisory Board Member of the Company (current)

Apr 1987 Joined Tokyo Regional Taxation Bureau Oct 1992 Joined Asahi Shinwa Audit Firm (now Azusa Audit LLC) Apr 1998 Registered as Certified Public Accountant Jan 1999 Established Fujita CPA Office; appointed Office Head (current) Mar 2004 Established ARK Audit Corporation (now ARK Audit LLC); became Partner Aug 2014 Appointed Audit & Supervisory Board Member of the Company (current)

Oct 1999 Joined Chuo Audit Corporation Mar 2005 Registered as Certified Public Accountant Jul 2005 Joined Notoya Accounting Office Apr 2006 Established Minamide CPA Office; appointed Office Head (current) May 2006 Joined Lupus Communications Co., Ltd. Jun 2008 Became Partner, ARK Audit Corporation (now ARK Audit LLC) Jun 2013 Appointed Outside Audit & Supervisory Board Member, Mipox Corporation (current) Aug 2014 Appointed Audit & Supervisory Board Member of the Company (current) Nov 2014 Established Yamato Audit Corporation; appointed Representative Partner