Apr 1987 Joined Toppan Printing Co., Ltd. (currently TOPPAN Holdings Inc.) Apr 2005 General Manager, Business Strategy Department, Management Planning Division, Toppan Printing Apr 2008 General Manager, Business Strategy Department, Semiconductor Solutions Business Division; concurrently General Manager, Purchasing Department, Toppan Printing Apr 2018 Executive Officer, Semiconductor Business General Manager, Electronics Business Division, Toppan Printing Apr 2022 Transferred to the Company; Representative Director, President Apr 2024 Representative Director, President Executive Officer and CEO (current)

Jun 1984 Joined E.I. du Pont de Nemours and Company Jun 1989 Account Manager, DuPont Photomasks, Inc. Jun 1999 Managing Director and General Manager, DuPont Photomasks, Inc. (based in Singapore) Dec 2001 Asia Pacific Sales Vice President, Managing Director and President, DuPont Photomasks, Inc. (based in Taiwan) May 2005 Executive Vice President and W/W Sales and Marketing, Toppan Photomasks, Inc. Dec 2013 President and CEO, Toppan Photomasks, Inc. Apr 2022 COO, the Company Apr 2024 Director, Executive Officer and COO (current)

Apr 1985 Joined Toppan Printing Co., Ltd. (currently TOPPAN Holdings Inc.) Apr 1995 Toppan Printing (Shanghai), stationed in Shanghai Apr 2013 Seconded to Altas Technology Co., Ltd. as Director and General Manager, Administration Division Apr 2017 General Manager, Accounting Department, Electronics Business Division, Toppan Printing Apr 2022 Transferred to the Company; CFO Apr 2024 Director, Executive Officer and CFO (current)

Apr 1986 Joined Toppan Printing Co., Ltd. (currently TOPPAN Holdings Inc.) Oct 2000 CFO, Toppan Interamerica Inc. Jun 2018 Director and Executive Officer, General Manager, Finance Division, Toppan Printing Apr 2021 Director, General Manager, Finance Division, Toppan Printing Apr 2023 Director and Managing Executive Officer, General Manager, Finance Division, in charge of Global GRC Division, Toppan Printing Oct 2023 Director and Managing Executive Officer, CFO, General Manager, Finance Division, in charge of Global GRC Division, TOPPAN Holdings Inc. Apr 2024 Director and Managing Executive Officer, CFO and CRO, General Manager, Finance Division, in charge of GRC Division, TOPPAN Holdings Inc. Jun 2024 Director and Senior Managing Executive Officer, CFO and CRO, General Manager, Finance Division, in charge of GRC Division, TOPPAN Holdings Inc. Jan 2025 Director and Senior Managing Executive Officer, CFO and CRO, in charge of Finance Division and GRC Division, TOPPAN Holdings Inc. Apr 2025 Director and Senior Managing Executive Officer, CFO, in charge of Finance Division, TOPPAN Holdings Inc. Sep 2025 Director, the Company (current)

Apr 1983 Joined Dainippon Screen Mfg. Co., Ltd. (currently SCREEN Holdings Co., Ltd.) Oct 1999 Vice President, DNS Electronics, LLC (currently SCREEN SPE USA, LLC) Apr 2004 President, DNS Electronics, LLC Apr 2004 Vice President, Semiconductor Equipment Company, Dainippon Screen Mfg. Co., Ltd. Apr 2009 President and Representative Director, SOKUDO Co., Ltd. Apr 2010 Senior Executive Officer, President of Semiconductor Equipment Company, Dainippon Screen Mfg. Co., Ltd. Oct 2014 President and Representative Director, SCREEN Semiconductor Solutions Co., Ltd. May 2019 Advisor, JSR Corporation Jun 2019 Managing Executive Officer, Head of Digital Solutions Business, JSR Corporation Apr 2023 Representative Director, TSSC Co., Ltd. (current) Nov 2023 Outside Director, the Company (current) Apr 2026 Managing Executive Officer, Head of ICT Solutions Business Division, Mitsui Chemicals, Inc. (current)

Apr 2009 Associate Professor, Faculty of Science and Engineering, Waseda University Apr 2015 Professor, Department of Environment and Resources Engineering, School of Creative Science and Engineering, Waseda University (current) Nov 2016 Specially Appointed Professor, Institute of Industrial Science, The University of Tokyo (current) Nov 2018 Director, Diversity Promotion Office, Waseda University Apr 2021 Professor, Graduate School of Engineering, The University of Tokyo Apr 2021 Outside Director, JX Advanced Metals Corporation (current) Sep 2022 Deputy Director, Institute for Advanced Study, and Deputy Director, Research Center for Carbon Neutral Society, Waseda University Nov 2023 Outside Director, the Company (current) Sep 2024 Dean, School of Creative Science and Engineering and Graduate School of Creative Science and Engineering, Waseda University (current)

Feb 1988 Joined Electronic Research and Service Organization, Industrial Technology Research Institute Dec 1994 Operation Planning Manager, Vanguard International Semiconductor Corporation Jul 1996 Seconded to Vanguard International Semiconductor-America as Secretary, CFO and Liaison Director of Product Aug 1999 Co-founder and Vice President, Ardentec Corporation Jul 2003 VP, COO and then President, CSMC Technologies Corporation Aug 2010 CEO and Executive Director, CRM Aug 2014 President, Etron Technology, Inc. (current) Apr 2020 Chairman and General Manager, Yuqun Technology (current) Apr 2020 Chairman, Yuli Microelectronics (current) Dec 2021 Managing Director, Invention and Collaboration Laboratory Pte. Ltd. (current) May 2024 Outside Director, the Company (current)

May 1991 Joined Toppan Printing Co., Ltd. (currently TOPPAN Holdings Inc.) Apr 2006 Deputy General Manager, Customer Center, Electronics Business Division, Toppan Printing Apr 2011 Seconded to Toppan Electronics Taiwan, stationed in Taiwan Apr 2015 Seconded to Chung Hwa Toppan Electronics, stationed in Taiwan Apr 2020 Deputy General Manager (Special Assignment), Electronics Business Division, Toppan Printing Apr 2022 Business Strategy Department, the Company Oct 2022 General Manager, Internal Audit Office, the Company Jun 2026 Audit & Supervisory Board Member, the Company (current)

Apr 1973 Joined National Tax Agency Jul 2003 Deputy Director, Kanda Tax Office Aug 2008 Chief Inspector, Tokyo Dispatched Inspector, Office of the Commissioner, National Tax Agency Jul 2010 Chief Inspector, Second Examination Department, Tokyo Regional Taxation Bureau Jul 2011 Director, Gyoda Tax Office Jul 2012 Manager, Examination Coordination Section, Fourth Examination Department, Tokyo Regional Taxation Bureau Jul 2013 Deputy Director, Second Examination Department, Tokyo Regional Taxation Bureau Jul 2014 Director, Nihonbashi Tax Office Aug 2015 Registered as Certified Tax Accountant; Representative, Fumiko Kozao Tax Accountant Office (current) Jun 2016 Outside Director, Tobishima Corporation Mar 2017 Outside Director, Construction Technology Research Institute, Inc. (current) Jun 2017 Outside Director, Metawater Co., Ltd. (current) Jul 2020 Outside Director (Audit and Supervisory Committee Member), TOEL Co., Ltd. Jun 2023 Outside Director, Nippon Road Co., Ltd. (current) Jun 2026 Outside Audit & Supervisory Board Member, the Company (current)

Apr 1997 Registered as attorney; joined Iwata Godo Law Offices (current) Oct 2003 Joined Steptoe & Johnson LLP, Washington, D.C. Office Jun 2007 Outside Auditor, Otsuma Gakuin Sep 2007 Lecturer, Keio University Law School Apr 2015 Instructor (Civil Litigation), Legal Training and Research Institute of the Supreme Court of Japan Jun 2016 Outside Director (Audit and Supervisory Committee Member), Data Applications Co., Ltd. (current) Apr 2017 Outside Director, HITOWA Holdings, Ltd. Nov 2017 Outside Audit & Supervisory Board Member, Arteria Networks Corporation Jun 2018 Outside Audit & Supervisory Board Member, Oi Electric Co., Ltd. Apr 2019 Visiting Professor, Research Center for Business Law and Comparative Law, Graduate School of Law and Politics, The University of Tokyo Jun 2023 Outside Board Member, Otsuma Gakuin (current) Jun 2023 Outside Director (Audit and Supervisory Committee Member), Oi Electric Co., Ltd. (current) Dec 2023 Outside Audit & Supervisory Board Member, the Company (current)