Jul 2003 NTT DATA Corporation, General Manager, Business Development Division Jul 2009 NTT DATA Corporation, Head of Data Center Business Unit, Business Solutions Division Jul 2012 NTT DATA Corporation, Head of Data Center Business Unit, Infrastructure Systems Division Jun 2015 NTT DATA Tokai Corporation, Representative Director, President Jun 2018 NTT DATA Corporation, Executive Officer, Head of Business Solutions Division Jun 2018 NTT DATA Business Systems Corporation, Director Jun 2020 DTS Corporation, Director, Vice President Executive Officer Apr 2021 DTS Corporation, Head of Digital Solutions Division Apr 2021 DTS Corporation, Representative Director, President (current)

Apr 1987 Joined DTS Corporation Apr 2010 DTS Corporation, General Manager, Planning Department Apr 2012 DTS Corporation, Executive Officer Apr 2013 DTS Corporation, General Manager, Embedded Systems Business Division, ICT Business Division Apr 2017 DTS Insight Corporation, Representative Director, President Jun 2019 DTS Corporation, Director, Executive Officer Apr 2020 DTS Corporation, Director, Senior Executive Officer Apr 2022 DTS Corporation, Director, Managing Executive Officer Mar 2024 DTS Corporation, General Manager, Accounting Department Apr 2025 DTS Corporation, Director, Senior Managing Executive Officer (current) Apr 2025 DTS Corporation, Executive in charge of Business Operations (current)

Jul 2015 NTT DATA Corporation, General Manager, Planning Department, Business Solutions Division Apr 2018 NTT DATA Corporation, General Manager, AI & IoT Business Department, Business Solutions Division Jul 2022 NTT DATA Corporation, General Manager, Technology Consulting Business Division Jul 2024 Joined DTS Corporation Jul 2024 DTS Corporation, Senior Executive Officer Nov 2024 DTS Corporation, General Manager, New Business Group and Common Group Dec 2024 Partners Information Technology, Inc., Chairman of the Board of Directors (current) Apr 2025 DTS Corporation, Managing Executive Officer Apr 2025 DTS Corporation, Executive in charge of Corporate Division (current) Jun 2025 DTS Corporation, Director, Managing Executive Officer (current) Apr 2026 DTS Corporation, General Manager, Public Relations Department (current)

Jun 2003 NTT DATA Corporation, Director, Deputy General Manager, Business Development Division May 2004 NTT DATA Corporation, Director, General Manager, Business Development Division Jun 2005 NTT DATA Corporation, Executive Officer, General Manager, Infrastructure Systems Division Jun 2007 NTT Data Advanced Technology Corporation, Representative Director, President (resigned Jun 2011) Jun 2007 NTT DATA Corporation, Managing Executive Officer, General Manager, Infrastructure Systems Division and Technology Development Division Jun 2009 NTT DATA Corporation, Representative Director, Managing Executive Officer, General Manager, Infrastructure Systems Division and Technology Development Division Jul 2009 NTT DATA Corporation, Representative Director, Managing Executive Officer, General Manager, S&T Company, SI Competency Division and Technology Development Division (resigned Jun 2011) Jun 2011 NTT Software Corporation, Representative Director, President (resigned Mar 2017) Apr 2017 NTT TechnoCross Corporation, Director (resigned Jun 2017) Jun 2017 NTT TechnoCross Corporation, Special Advisor (resigned Jun 2018) Jun 2020 DTS Corporation, Director (current)

May 1990 Bell System24, Inc., Banking Group Manager (resigned Jun 1996) Sep 1996 IBM Japan, Ltd., Solution Sales Jan 2003 IBM Japan, Ltd., Financial Strategy Consulting Cluster Partner, GS Consulting Division (resigned Jun 2006) Jul 2006 SAP Japan Co., Ltd., Director, Strategic Industry Sales, Field Services Division (resigned May 2009) Jun 2009 Consumer Voice Research Institute Co., Ltd., Representative Director (current) Jun 2018 PC Depot Corporation, Outside Director (resigned Jun 2024) Jun 2022 DTS Corporation, Director (current) Jun 2024 NITTAN Corporation, Outside Director (current) Mar 2025 K&O Energy Group Inc., Outside Director (current)

Jan 2003 Booz Allen Hamilton Japan, Inc., Vice President (resigned Mar 2010) Apr 2010 IBM Japan, Ltd., Partner Jan 2012 IBM Japan, Ltd., Executive (resigned Mar 2013) Apr 2013 Brain and Capital Holdings Co., Ltd., Representative Director, President Jan 2014 Brain and Capital Holdings Co., Ltd., Director, Vice Chairman (resigned Mar 2017) Apr 2015 Orion Electric Co., Ltd., Representative Director, President Nov 2016 Orion Electric Co., Ltd., Director, Chairman (resigned Mar 2017) Nov 2017 Future Corporation, Executive Officer (resigned Feb 2019) Mar 2019 Kizaki Enterprise Co., Ltd., Representative Director (current) Mar 2019 Billing System Co., Ltd., Outside Director (current) Jun 2025 DTS Corporation, Director (current)

Apr 2010 Mizuho Bank, Ltd., Kujo Branch Manager Sep 2013 Joined DTS Corporation Apr 2015 DTS Corporation, Executive Officer Apr 2015 DTS Corporation, General Manager, Planning Department, First Financial Business Division; General Manager, Financial Sales Planning Department, Second Financial Business Division Apr 2016 DTS Corporation, General Manager, Sales Division Apr 2019 DTS Corporation, General Manager, Corporate Planning Department Jun 2020 DTS Insight Corporation, Director Apr 2023 DTS Corporation, General Manager, Business Development Department Apr 2024 AVANZA Corporation, Representative Director, Chairman Jun 2025 DTS Corporation, Director, Full-time Audit and Supervisory Committee Member (current)

Apr 1986 Registered as attorney-at-law (First Tokyo Bar Association) Mar 1992 Ota & Ishii Law Office, Deputy Managing Partner (current) Apr 1998 Tokyo District Court, Civil Mediation Commissioner (current) Apr 2003 Member, Civil Service Case Law Study Group, Personnel and Pension Bureau, Ministry of Internal Affairs and Communications (now Civil Service Case Law Study Group, Cabinet Personnel Bureau, Cabinet Secretariat) (current) Apr 2004 Furusato Service Co., Ltd., Outside Auditor (current) Nov 2007 Central Construction Dispute Review Board, Ministry of Land, Infrastructure, Transport and Tourism, Special Committee Member (current) Jun 2018 DTS Corporation, Auditor Jun 2018 NEC Corporation, Outside Auditor (resigned Jun 2022) Jun 2018 Sumitomo Metal Mining Co., Ltd., Outside Director (current) Jun 2021 Dai Nippon Printing Co., Ltd., Outside Auditor (current) Jun 2022 DTS Corporation, Director, Audit and Supervisory Committee Member (current)

Sep 1991 Joined Aoyama Audit Corporation Aug 1995 Registered as Certified Public Accountant Apr 2000 Chuo Aoyama Audit Corporation, Audit Division (resigned Aug 2006) Sep 2006 Arata Audit Corporation (resigned Jul 2012) Jul 2012 Certified Public Accountants and Auditing Oversight Board, Financial Services Agency, Chief Inspector (resigned Jun 2014) Jul 2014 Arata Audit Corporation, Audit Division, Director Jul 2017 PwC Arata LLC, Audit Division, Partner (resigned Jun 2022) Jul 2022 Iimuro Certified Public Accountant Office, Principal (current) Jun 2023 DTS Corporation, Director, Audit and Supervisory Committee Member (current) Nov 2023 Meiji Pharmaceutical University, Auditor (current)

May 2007 Chuo Mitsui Trust and Banking Company, Limited, Oita Branch Manager Oct 2008 Chuo Mitsui Trust and Banking Company, Limited, General Manager, Head Office Financial Corporate Department Jun 2010 Chuo Mitsui Trust and Banking Company, Limited, Shibuya Branch Manager Jan 2012 Chuo Mitsui Trust and Banking Company, Limited, General Manager, Fifth Head Office Sales Department Apr 2012 Sumitomo Mitsui Trust Bank, Limited, Executive Officer, General Manager, Fifth Head Office Sales Department Apr 2014 Sumitomo Mitsui Trust Bank, Limited, Senior Executive (resigned Jun 2014) Jul 2014 Ando Corporation, Adviser, Architecture Division Oct 2014 Ando Corporation, Executive Officer Apr 2023 Ando Corporation, Adviser, in charge of Sales Division (resigned Mar 2024) Apr 2024 Developer Sanshin Co., Ltd., Adviser (resigned Jun 2024) Jun 2024 DTS Corporation, Director, Audit and Supervisory Committee Member (current)