Apr 1992 Intec Inc. Dec 1995 Novell Japan, Ltd. Jun 1998 SAP Japan Co., Ltd. Sep 2001 Infoteria Corporation (currently Asteria Corporation) Nov 2003 Bizlink Inc., Representative Director Nov 2003 Novell Japan, Ltd. May 2005 Creo Inc., Advisor May 2005 Saio Corporation, Director and Vice President Jan 2008 Falcon Store Japan Co., Ltd. Oct 2009 Core Micro Systems Inc. Apr 2010 Yoshimasa Sosei Co., Ltd., Established, Representative Director Feb 2014 PHP Engineer Certification Authority (currently BOSS-CON JAPAN), Established, Representative Director (current) Jan 2016 The Company, Director Jun 2016 Python Engineer Development Promotion Association, Established, Representative Director (current) Jun 2016 Rails Engineer Certification Examination Steering Committee (currently BOSS-CON JAPAN), Chairperson Dec 2018 Japan Network Engineers Association, Representative Director (current) Aug 2024 Yoshimasa Sosei Co., Ltd., Advisor (current) Sep 2024 The Company, Representative Director (in charge of Marketing Department) Sep 2024 PRIME STRATEGY NEW YORK, INC., President (current) Jun 2025 The Company, Representative Director (in charge of Marketing & Sales Department and AI Business Department) Dec 2025 The Company, Representative Director (in charge of Marketing Department and AI Business Division) Dec 2025 The Company, Representative Director, President (in charge of Marketing Department and AI Business Division) (current)

Apr 2008 Konami Digital Entertainment Co., Ltd. Jun 2011 Samzap Inc., Outsourcing Contract Sep 2013 Red Entertainment Inc. Feb 2015 AppMedia Inc., Outsourcing Contract Oct 2016 AppMedia Inc., Full-time Employee, Head of Media Business Division Jun 2018 Joined the Company Oct 2019 The Company, Head of Marketing Department Jan 2020 The Company, Head of Cloud Integration Business Division Feb 2020 The Company, Director (in charge of Cloud Integration Business Division) Jun 2023 The Company, Director and Vice President (in charge of Cloud Integration Business Division) Sep 2024 The Company, Director (in charge of Cloud Integration Business Division) Jun 2025 The Company, Director (in charge of KUSANAGI Business Division) Dec 2025 The Company, Director (in charge of KUSANAGI Business Division and License Business Division) (current)

Oct 2013 Shohashi Audit Corporation (currently ARK Audit Corporation) Feb 2016 Sanyu Audit Corporation Nov 2019 PwC Arata LLC (currently PwC Japan LLC) Nov 2020 Tsukatsuka Certified Public Accountant Office, Opened (current) Nov 2020 Joined the Company, Executive Officer and Head of Corporate Management Department Feb 2023 The Company, Executive Officer, Head of Corporate Management Department and in charge of Internal Audit Feb 2025 The Company, Director (in charge of Corporate Management Department) (current) Feb 2025 PRIME STRATEGY NEW YORK, INC., Director (current)

Apr 1993 Joined Nomura Securities Co., Ltd. Jan 1994 Joined TAC Co., Ltd. Sep 1997 Motor Sparco Corporation Ltd., Director Oct 1998 Kengyu Nakamura Certified Public Accountant Assistant Office, Established, Office Head Dec 2002 The Company, Established, Representative Director Sep 2015 Prime Strategy Singapore Pte. Ltd., Established, Director (current) Sep 2015 PRIME STRATEGY NEW YORK, INC., Established, President Jun 2023 The Company, Representative Director, Chairman Feb 2026 The Company, Director (current)

Nov 1998 Business Bank Co., Ltd. (currently AI Storm Inc.) Oct 2001 Chuo Aoyama Audit Corporation Mar 2005 Registered as Certified Public Accountant Apr 2005 Beckone Solutions Inc. (currently A.G.S. Consulting Co., Ltd.) Feb 2011 CareerLink Co., Ltd. Aug 2011 KID'S Inc. (currently KIDS HOLDINGS) May 2019 Enjin Inc., Full-time Audit & Supervisory Board Member Jan 2020 Enjin Inc., Director and Head of Corporate Division Sep 2020 The Company, Full-time Audit & Supervisory Board Member Aug 2022 The Company, Outside Director (Full-time Audit and Supervisory Committee Member) (current) Sep 2023 Revible Inc., Audit & Supervisory Board Member (current) Jan 2025 Wellness X Asia Co., Ltd., Audit & Supervisory Board Member (current)

May 1999 Joined InterQ Inc. (currently GMO Internet Group, Inc.) Jul 2001 Global Media Online Inc. (currently GMO Internet Group, Inc.), Manager, Group Management Strategy Office Sep 2001 Registered as Certified Tax Accountant Mar 2003 Global Media Online Inc. (currently GMO Internet Group, Inc.), Head of Group Management Strategy Office Apr 2004 Global Media Online Inc. (currently GMO Internet Group, Inc.), Head of Group Management Strategy Division Mar 2005 Global Media Online Inc. (currently GMO Internet Group, Inc.), Director and Head of Group Management Strategy Division Mar 2008 Magclick Inc. (currently GMO Internet, Inc.), Outside Audit & Supervisory Board Member May 2008 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Director and Head of Group Finance Division Feb 2009 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Director and General Manager of Group Finance Department Apr 2014 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Director, Deputy Head of Group Management Division and General Manager of Group Finance Department Mar 2016 GMO AdPartners Inc. (currently GMO Internet, Inc.), Director Mar 2016 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Managing Director, Deputy Head of Group Management Division, in charge of Group Finance, and General Manager of Group HR Department May 2017 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Managing Director, Deputy Head of Group Management Division, in charge of Group Finance and Group International Support Office, and General Manager of Group HR Department Mar 2020 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Senior Managing Director, Deputy Head of Group Management Division, in charge of Group Finance and Group International Support Office, and General Manager of Group HR Department Mar 2022 GMO Internet, Inc. (currently GMO Internet Group, Inc.), Group Senior Executive Officer, Deputy Head of Group Management Division, in charge of Group Finance and Group International Support Office, and General Manager of Group HR Department Jul 2023 GMO Internet Group, Inc., Group Senior Executive Officer, Deputy Head of Group Management Division, in charge of Group Finance and Group International Support Office, and Head of Parent Company Business Management Division Jan 2025 GMO Internet Group, Inc., Group Senior Executive Officer, Deputy Head of Group Management Division, in charge of Group Finance and Group International Support Office Jan 2026 GMO Internet Group, Inc., Group Senior Executive Officer and Head of Group Management Support Division (current) Feb 2026 The Company, Director (current)

Apr 2023 Joined GMO Internet Group, Inc. Apr 2024 Seconded to GMO Cybersecurity by Ierae, Inc. Apr 2025 Returned to GMO Internet Group, Inc., Group Representative Policy and Management Promotion Office Jan 2026 GMO Internet Group, Inc., Group Representative Strategy Headquarters, President's Office (current) Feb 2026 The Company, Director (current)

Apr 1994 Research Fellow (DC), Japan Society for the Promotion of Science Oct 1994 Research Fellow, University of Hanover (Germany) Apr 1997 Electromagnetic Applications Research Institute (public interest foundation) Sep 1999 Waseda University Apr 2001 Media Glue Inc. Jan 2003 Waseda University Apr 2005 Tsuda University (current) Aug 2016 Kochi Medical Revitalization Organization (general incorporated association), Director (current) Feb 2019 The Company, Outside Director (current)

Apr 2006 Clarion Co., Ltd. (currently Faurecia Clarion Electronics Co., Ltd.) Jan 2012 Tottori University May 2015 Okayama University Oct 2016 Public University Corporation Graduate School of Industrial Technology (currently Tokyo Metropolitan Graduate School of Industrial Technology) Sep 2021 Musashino University Sep 2022 The Company, Outside Director (current) Apr 2023 Shinshu University Mar 2025 Shimane University Dec 2025 Tohoku University (current)

Nov 2006 Legal Training and Research Institute of the Supreme Court of Japan Dec 2007 Registered as Attorney-at-Law; Haraguchi Sogo Law Office (currently Eiwa Law Office) Sep 2011 Mizuki Partners Law Office (currently Mizuki Partners Law Office LLP) Oct 2016 GVA Law Office LLP Jul 2020 GVA Law Office LLP, Partner (current) Jan 2021 The Company, Audit & Supervisory Board Member Aug 2022 The Company, Outside Director (Audit and Supervisory Committee Member) (current)

Apr 1975 IBM Japan, Ltd. Sep 2002 Display Technology Co., Ltd., Representative Director Jun 2014 Proto Corporation, Full-time Audit & Supervisory Board Member Nov 2018 The Company, Audit & Supervisory Board Member Dec 2018 Astroscale Holdings Inc., Audit & Supervisory Board Member (current) Aug 2022 The Company, Outside Director (Audit and Supervisory Committee Member) (current)