Apr 1981 Joined the Company Apr 2008 Executive Officer of the Company Jun 2013 Director and Executive Officer of the Company Apr 2014 Managing Director and Executive Officer of the Company Mar 2016 Representative Director, Executive Vice President of the Company; General Manager, Ceramics Business Division Apr 2017 Overall Supervision of Business Execution; in charge of Ceramics Business Jun 2017 Representative Director, President of the Company Jun 2018 In charge of Technology Development Apr 2019 In charge of Internal Audit Division Jun 2024 Representative Director, Chairman of the Company (current)

Apr 1987 Joined the Company Apr 2008 Manager of the Company Apr 2010 Executive Officer of the Company; General Manager, PKG Business Division Apr 2014 General Manager, Human Resources Department, Corporate Planning Division of the Company Mar 2016 Managing Executive Officer of the Company Apr 2017 General Manager, Electronics Business Division Apr 2019 General Manager, PKG Business Division Apr 2020 Executive Officer of the Company Apr 2022 In charge of Electronics Business Jun 2022 Director and Executive Officer of the Company Apr 2023 General Manager, Electronics Business Division Apr 2024 Overall Supervision of Business Execution (current); in charge of Technology Development (current) Jun 2024 Representative Director, President of the Company (current) Apr 2026 In charge of Audit Department (current)

May 1989 Joined the Company Apr 2005 PKG Group Manager, Quality Control Department, Electronics-Related Business Division of the Company Apr 2009 General Manager, Quality Assurance Department, DPF Business Division of the Company Apr 2018 President, Ibiden Hungary Kft. Apr 2021 Senior Staff Position of the Company Apr 2022 General Manager, Production Department, ECP Business Division, Ceramics Business Division of the Company Apr 2023 Executive Officer of the Company; in charge of GX Promotion (current); in charge of Energy Management Division (current); General Manager, Production Promotion Division (current) Jun 2023 Director and Executive Officer of the Company (current); in charge of Quality, Technology and Production (current)

Apr 1988 Joined the Company Apr 2004 Business Unit Manager, PKG Business Division, Electronics-Related Business Division of the Company Dec 2012 Vice President, Ibiden Electronics Malaysia Sdn. Bhd. Apr 2020 Senior Staff Position of the Company Apr 2021 General Manager, Production Technology Management Division, PKG Business Division of the Company Apr 2022 Executive Officer of the Company; in charge of Production Technology (current); Project Leader, New Plant Startup Project, PKG Business Division of the Company Apr 2023 General Manager, Technology Management Division, Electronics Business Division of the Company (current) Apr 2024 In charge of Electronics Business (current); General Manager, Electronics Business Division (current) Jun 2024 Director and Executive Officer of the Company (current) Apr 2025 General Manager, Quality Management Division, Electronics Business Division of the Company (current) Apr 2026 General Manager, Production Management Division, Electronics Business Division of the Company (current)

Apr 1989 Joined the Company Sep 1997 Seconded to Ibiden Singapore Pte. Ltd. Apr 2007 General Manager, Business Management Division, Printed Circuit Board Business Division, Electronic Circuit Business Division, Electronics Business Group of the Company Apr 2010 Deputy General Manager, First Business Division, PWB Business Division of the Company Apr 2014 Seconded to Ibiden U.S.A. Corp. Apr 2020 Senior Staff Position of the Company; Deputy General Manager, MLB Business Division of the Company Apr 2021 General Manager, MLB Business Division of the Company Apr 2023 Deputy General Manager, Business Management Division, Electronics Business Division of the Company Apr 2024 In charge of DX Promotion (current); in charge of IR (current); in charge of Affiliated Companies (current); General Manager, Corporate Planning Division of the Company (current) Apr 2025 Managing Executive Officer of the Company (current) Apr 2026 General Manager, Management Strategy Division, Corporate Planning Division of the Company (current)

Apr 1979 Joined Brother Industries, Ltd. Aug 1982 Seconded to Brother International Corporation (U.S.A.) Oct 1992 Director of Brother International Corporation (U.S.A.) Jan 2000 President of Brother International Corporation (U.S.A.) Jun 2004 Director, Brother Industries, Ltd. Jan 2005 Chairman, Brother International Corporation (U.S.A.) Apr 2005 Director, Managing Executive Officer, Brother Industries, Ltd. Apr 2006 Director, Senior Managing Executive Officer, Brother Industries, Ltd. Jun 2006 Representative Director, Senior Managing Executive Officer, Brother Industries, Ltd. Jun 2007 Representative Director, President, Brother Industries, Ltd. Jun 2018 Representative Director, Chairman, Brother Industries, Ltd. Jun 2020 Outside Director, Toyo Seikan Group Holdings, Ltd. (resigned Jun 2024) May 2021 Outside Director, Audit and Supervisory Committee Member, Yaskawa Electric Corporation (resigned May 2025) Jun 2022 Director, Chairman, Brother Industries, Ltd. (current) Jun 2024 Outside Director of the Company (current) Jun 2025 Outside Director, Fujikura Ltd. (current)

Apr 1997 Research Assistant, Faculty of Economics, Nagoya University Mar 1999 Ph.D. (Economics), Nagoya University Apr 2007 Professor, Faculty of Business Administration, Chukyo University Jun 2015 Outside Director, CKD Corporation (resigned Jun 2023) Jun 2020 Outside Director of the Company (current) Jun 2021 Outside Director, Okuma Corporation (resigned Jun 2025) Oct 2021 Invited Faculty, Graduate School of Economics, Nagoya University Nov 2023 Outside Director, Shinwa Co., Ltd. (current) Sep 2024 Full-time Audit Commissioner, Toyohashi University of Technology (current)

Apr 1978 Joined Nippon Denso Co., Ltd. (now DENSO CORPORATION) Jan 1995 President, Nippondenso France Jul 2002 President, Denso Automotive Deutschland GmbH Jun 2004 Managing Officer, DENSO CORPORATION Apr 2008 President, Denso International America, Inc. Jun 2010 Senior Managing Director, DENSO CORPORATION Jun 2014 Representative Director, Executive Vice President, DENSO CORPORATION Jul 2019 Joined Yamazaki Mazak Corporation; Executive Vice President Jun 2020 Director, Executive Vice President, Yamazaki Mazak Corporation (current) Jun 2025 Outside Director of the Company (current)

Apr 1986 Joined the Company Apr 2008 General Manager, Technology Department, Technology Division, APKG Group, Electronics Business Group of the Company Apr 2011 General Manager, Technology Management Division, PKG Business Division of the Company May 2015 Vice President, Ibiden Electronics Malaysia Sdn. Bhd. Apr 2016 Deputy Manager of the Company Apr 2020 Senior Staff Position of the Company Apr 2022 Representative Director, President, Ibiden Career Techno Co., Ltd. Apr 2025 Attached to Audit Department of the Company; Director, Ibiden Career Techno Co., Ltd. (resigned Jun 2025) Jun 2025 Director, Full-time Audit and Supervisory Committee Member of the Company (current)

Apr 1987 Joined Sumitomo Bank, Ltd. (now Sumitomo Mitsui Banking Corporation) Oct 1994 Deputy Manager, Chicago Branch, Sumitomo Bank Oct 1996 Deputy Manager, Credit Examination Department (New York), Americas Division, Sumitomo Bank Apr 2001 Examiner, First Business Credit Examination Department, Sumitomo Mitsui Banking Corporation Apr 2010 Deputy General Manager, Saitama Corporate Business Department, Sumitomo Mitsui Banking Corporation May 2014 Deputy General Manager, Audit Department (London), Sumitomo Mitsui Banking Corporation; Co-General Manager, Audit Department, Sumitomo Mitsui Banking Corporation Europe Apr 2017 Deputy General Manager, Audit Department (Singapore), Sumitomo Mitsui Banking Corporation Oct 2020 Joined the Company; General Manager, Audit Management Division of the Company Jun 2021 Director, Full-time Audit and Supervisory Committee Member of the Company (current)

Apr 1981 Joined Matsushita Electric Industrial Co., Ltd. (now Panasonic Holdings Corporation) Apr 2006 Director, Living Research Center, Technology Division, Home Appliances Company Jan 2011 Director, General Manager, Global Consumer Research Center, Corporate Brand Strategy Division Apr 2013 Director, Consumer Research, Global Marketing Planning Center, Appliances Company; Group Manager Mar 2014 Resigned from Panasonic Jun 2014 Outside Director, Duskin Co., Ltd. (resigned 2017) Jun 2015 Outside Director, Takara Holdings Inc. (resigned 2018) Jun 2016 Outside Director, Daiwa House Industry Co., Ltd. (resigned Jun 2024) Jun 2019 Outside Director, Furukawa Electric Co., Ltd. (current) Jun 2021 Outside Director, Audit and Supervisory Committee Member of the Company (current)

Apr 1973 Joined Price Waterhouse & Co. Nov 1980 Joined Ito Accounting Office, Audit Corporation Jul 1997 Senior Partner, Ito Accounting Office Jan 2001 Partner, Chuo Aoyama Audit Corporation Sep 2006 Partner, Arata Audit Corporation (now PwC Japan LLC) Jul 2010 Certified Public Accountant; opened Masaki Horie CPA Office, Director (current) Jun 2011 Outside Audit & Supervisory Board Member, Tokai Rika Co., Ltd. (resigned Jun 2015) Jun 2015 Outside Audit & Supervisory Board Member, Futaba Corporation Jun 2016 Outside Director, Futaba Corporation (resigned Jun 2024); Outside Audit & Supervisory Board Member of the Company Jun 2017 Outside Director, Audit and Supervisory Committee Member of the Company (current) Sep 2023 Outside Director, Kagayaki Holdings Co., Ltd. (current)

Oct 2004 Registered as attorney-at-law with Japan Federation of Bar Associations; joined Nagoya Bar Association (now Aichi Bar Association) Oct 2008 Joined Goto Takeo Law Office Jan 2018 Partner, Goto & Suzuki Law Office Jan 2023 Partner, Goto & Suzuki Law Office, Attorney Corporation (now Goto & Kigawa Law Office, Attorney Corporation) (current) Dec 2023 Outside Director, Audit and Supervisory Committee Member, CMC Corporation (current) Nov 2024 Outside Director, Audit and Supervisory Committee Member, KTK Co., Ltd. (current) Jun 2025 Outside Director, Audit and Supervisory Committee Member of the Company (current)