Apr 2004 Joined Opt Inc. Jan 2009 Resigned from Opt Inc. Feb 2009 Joined the Company Jun 2016 Executive Officer, in charge of Business Development Office (currently Office of the President) Jun 2022 Senior Executive Officer Jun 2024 Director, Senior Executive Officer Apr 2026 Representative Director, President and Executive Officer (current)

Apr 1985 Joined Nippon Telegraph and Telephone Corporation (now NTT, Inc.) Jun 1996 Resigned from Nippon Telegraph and Telephone Corporation Jul 1996 Joined Atson Co., Ltd. (current company) Jun 2006 Director of the Company Jun 2016 Director and Executive Officer of the Company Jun 2022 Director, Senior Executive Officer of the Company (current)

Apr 1991 Joined trans cosmos inc. May 2002 Resigned from trans cosmos inc. Jun 2002 Joined the Company Jun 2019 General Manager, Internal Audit Office (current) Jun 2024 Director (Full-time Audit and Supervisory Committee Member) of the Company (current)

Apr 1980 Joined Nippon Telegraph and Telephone Public Corporation (now NTT, Inc.) Jun 2009 Director, General Manager of Broadband Service Department, Consumer Business Promotion Headquarters, East Nippon Telegraph and Telephone Corporation (now NTT EAST) Jun 2012 Director, General Manager of Corporate Planning Department, NTT EAST Jun 2014 Managing Director, Head of Business Development Headquarters, NTT EAST Jun 2015 Representative Managing Director, Head of Business Development Headquarters, NTT EAST Jun 2016 Representative Executive Vice President, Head of Business Development Headquarters, NTT EAST Jun 2018 Representative Director, President, NTT EAST Jun 2021 Representative Director, President and Executive Officer, NTT EAST Jun 2022 Senior Advisor, NTT EAST (current) Mar 2025 Outside Director, Trend Micro Incorporated (current) Jun 2025 Outside Director of the Company (current)

Apr 1993 Entered Legal Training and Research Institute of the Supreme Court of Japan Apr 1995 Registered as attorney-at-law Sep 2001 Joined Paul Hastings Janofsky & Walker LLP Oct 2002 Registered as attorney admitted in New York State, USA Oct 2002 Joined Taiyo Law Office (now Paul Hastings LLP Gaikokuho Kyodo Jigyo) Jan 2008 Partner, TMI Associates (current) Oct 2014 Audit & Supervisory Board Member, Overseas Transportation and Urban Development Business Support Organization Co., Ltd. Nov 2015 Outside Director, Meikoh Network Japan Co., Ltd. Jun 2016 Outside Audit & Supervisory Board Member, SATO Holdings Corporation (current) Jun 2019 Outside Director of the Company (current) Jun 2021 Outside Director, JGC Holdings Corporation (current) Jun 2023 Outside Director, Arata Corporation (current)

Apr 2001 Entered Legal Training and Research Institute of the Supreme Court of Japan Oct 2003 Registered as attorney-at-law; joined Ohara Law Office Aug 2007 Joined Masuda, Funai, Eifert & Mitchell, ITD Oct 2007 Registered as attorney admitted in New York State, USA Oct 2008 Returned to Ohara Law Office Jun 2011 Representative Attorney, Kazuma Higuchi International Law Office (now Higuchi International Law Office, Attorney Corporation) (current) Jun 2019 Outside Audit & Supervisory Board Member of the Company Jun 2022 Outside Director (Audit and Supervisory Committee Member) of the Company (current) Jun 2023 Outside Audit & Supervisory Board Member, OneTable Inc. (current)

Apr 1984 Joined Mitsui & Co. Project Solutions, Ltd. Oct 1991 Joined Ota Showa & Co. (now EY ShinNihon LLC) Mar 1995 Registered as Certified Public Accountant Jul 2008 Opened Tomoko Miyaishi CPA Office, Representative (current) Sep 2008 Joined Sumitomo Corporation Jun 2018 Outside Audit & Supervisory Board Member, Nippon Coke & Engineering Co., Ltd. Jun 2025 Outside Director (Audit and Supervisory Committee Member) of the Company (current)