Apr 1990 Joined Kokusai Securities Co., Ltd. (now Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.) Nov 1994 Joined Sekitechnotron Co., Ltd. (now Cohn Technology Co., Ltd.) Mar 1998 Joined the Company Dec 2001 Director, General Manager, Product Planning Department, the Company Dec 2004 Managing Director, General Manager, Product Planning Department; General Manager, Package Probe Division, Semiconductor Equipment Business Division Apr 2005 Managing Director; General Manager, Aomori Plant, Semiconductor Equipment Business Division; General Manager, Semiconductor Equipment Production Control Division Dec 2005 Representative Director, Executive Vice President Apr 2007 Representative Director, President Dec 2010 Representative Director, President; President and Executive Officer Mar 2021 Representative Director, President and Executive Officer; General Manager, Corporate Planning and Strategy Division Mar 2023 Representative Director, President and Executive Officer; General Manager, Administration Division (current)

Apr 1984 Joined Tokyo Electron Limited Apr 2010 Project Leader, TS Project, Tokyo Electron Limited Jul 2011 Executive Officer, General Manager, TSBU, Tokyo Electron Limited Jul 2016 Director (Riji), ATSBU, Tokyo Electron Limited Oct 2018 Joined the Company; Deputy General Manager, TE Division Dec 2018 Executive Officer; Deputy General Manager, TE Division Oct 2019 Executive Officer; General Manager, TE Division Mar 2021 Executive Officer; General Manager, TE Division; Deputy General Manager, Corporate Planning and Strategy Division Mar 2021 Director, Senior Executive Officer; General Manager, TE Division; Deputy General Manager, Corporate Planning and Strategy Division Mar 2022 Director, Managing Executive Officer; General Manager, TE Division; Deputy General Manager, Corporate Planning and Strategy Division Mar 2023 Director, Senior Managing Executive Officer; in charge of Corporate Planning and Strategy Division; General Manager, TE Division (current)

Jun 1984 Joined Nihon Semicon Co., Ltd. (now the Company) Apr 2001 General Manager, Aomori PB Manufacturing Department, the Company Feb 2003 General Manager, Kumamoto TL No. 3 PB Manufacturing Department, PB Business Division Apr 2005 General Manager, PS Manufacturing Department, Semiconductor Equipment Business Division Jan 2010 Seconded to MEK Co., Ltd. Oct 2013 Deputy General Manager, Memory Division, Probe Card Business Division Dec 2013 Executive Officer; Deputy General Manager, Memory Division, Probe Card Business Division Oct 2014 Executive Officer; General Manager, Logic Division, Probe Card Business Division Dec 2015 Director, Executive Officer; General Manager, Logic Division, Probe Card Business Division Oct 2016 Director, Executive Officer; General Manager, Aomori Division, Probe Card Business Division Dec 2018 Director, Senior Executive Officer; General Manager, Aomori Division, Probe Card Business Division Sep 2021 Director, Senior Executive Officer; General Manager, Probe Card Business Division; General Manager, Memory Business Unit Oct 2022 Director, Senior Executive Officer; General Manager, Probe Card Business Division; General Manager, Memory Business Unit Mar 2023 Director, Managing Executive Officer; General Manager, Probe Card Business Division; General Manager, Memory Business Unit Jan 2024 Director, Managing Executive Officer; General Manager, Probe Card Business Division (current)

Aug 1983 Joined Samsung Electronics Co., Ltd. Feb 1986 Wafer Test Engineer, Samsung Electronics Co., Ltd. Sep 1988 Assistant Manager, Samsung Electronics Co., Ltd. Sep 1990 Manager, Samsung Electronics Co., Ltd. Jul 1995 General Manager, Samsung Electronics Co., Ltd. Jan 2005 Vice President, Test Technology Team, Samsung Electronics Co., Ltd. Jan 2009 Consultant, Samsung Electronics Co., Ltd. Jan 2011 Joined the Company Apr 2011 Executive Officer; Representative Director, MEK Co., Ltd. Dec 2018 Director, Senior Executive Officer; Representative Director, MEK Co., Ltd. Mar 2023 Director, Managing Executive Officer; Representative Director, MEK Co., Ltd. (current)

Apr 1994 Joined Holon Co., Ltd. Aug 2000 Joined the Company Apr 2008 Manager, Fund Section, Accounting Department, Administration Division, the Company Jan 2011 Registered as U.S. Certified Public Accountant (Inactive) Apr 2011 Manager, Accounting Section, Accounting Department, Administration Division, the Company Dec 2014 General Manager, Accounting Department, the Company Dec 2017 Executive Officer; General Manager, Accounting Department, the Company Mar 2021 Executive Officer; Deputy General Manager, Administration Division; General Manager, Accounting Department Mar 2021 Director, Senior Executive Officer; Deputy General Manager, Administration Division; General Manager, Accounting Department Mar 2023 Director, Senior Executive Officer; Deputy General Manager, Administration Division; General Manager, Finance and Accounting Department Jul 2024 Director, Senior Executive Officer; Deputy General Manager, Administration Division (current)

May 1970 Joined The Mitsubishi Bank, Ltd. (now MUFG Bank, Ltd.) Sep 1990 President and Branch Manager, Toronto Branch, Mitsubishi Bank (Canada) Nov 1993 General Manager, Fourth Sales Department (Head Office), The Mitsubishi Bank, Ltd. (now MUFG Bank, Ltd.) Apr 1996 Branch Manager, Senba Branch, The Tokyo-Mitsubishi Bank, Ltd. (now MUFG Bank, Ltd.) Jun 1999 Director, General Manager, Corporate Planning Office, Tanaka Chemical Research Laboratory Co., Ltd. Apr 2003 Managing Director, General Manager, Corporate Division and Accounting Department, Tanaka Chemical Research Laboratory Co., Ltd. Aug 2008 Representative Director, President, Penfield Corporation Co., Ltd. (current) May 2009 Outside Audit & Supervisory Board Member, New Tech Co., Ltd. Dec 2017 Outside Director, the Company (current) May 2021 Outside Director (Audit and Supervisory Committee Member), New Tech Co., Ltd. Significant concurrent position: Representative Director, President, Penfield Corporation Co., Ltd.

Apr 1983 Joined Sony Corporation (now Sony Group Corporation); assigned to Integrated Circuits Division Apr 2001 General Manager, Storage Device Business Division, System Device Company, Semiconductor Network Company, Sony Corporation Jun 2002 General Manager, Image Sensing Processor Business Division, Image Sensor Company, Semiconductor Network Company, Sony Corporation Apr 2003 General Manager, Image Sensing Processor Business Division, Image Sensor Company, Micro Systems Network Company, Sony Corporation May 2008 General Manager, Platform Planning Tokyo, Sony Ericsson Mobile Communications Co., Ltd. Nov 2008 General Manager, Advanced Technology Division, Sony Ericsson Mobile Communications Co., Ltd. Jun 2009 General Manager, Tokyo Engineering and Platform Program Office, Sony Ericsson Mobile Communications Co., Ltd. Jan 2010 General Manager, Tokyo Engineering and PVM Tokyo, Sony Ericsson Mobile Communications Co., Ltd. Nov 2010 General Manager, Platform Development Tokyo, Sony Ericsson Mobile Communications Co., Ltd. Aug 2012 Representative, San Diego Office, Sony Ericsson Mobile Communications AB Sep 2015 Device Solutions Business Division, Sony Corporation (now Sony Group Corporation) Feb 2016 Executive Vice President, Altair Semiconductor Ltd. Oct 2025 Joined the Company; Executive Expert, Probe Card Business Division Mar 2026 Director, Senior Executive Officer; Deputy General Manager, Probe Card Business Division (current)

Apr 1982 Joined Sony Corporation (now Sony Group Corporation); assigned to Research Department, Semiconductor Business Division, Development Division Apr 1994 Chief, Design Section, CCD Department, CCD/LCD Division, Semiconductor Solutions Network Company, Sony Corporation Oct 2000 General Manager, Design Department, CCD Business Division, Semiconductor Solutions Network Company, Sony Corporation Apr 2001 General Manager, CCD Business Division, CCD System Division, Semiconductor Solutions Network Company, Sony Corporation Sep 2007 General Manager, Image Sensor Business Division, Semiconductor Business Division, Semiconductor Solutions Network Company, Sony Corporation Jun 2010 Executive Officer, Senior Vice President, Sony Corporation Apr 2015 Representative Director, President, Sony Semiconductor Manufacturing Corporation; Executive Officer, Business Executive, Sony Corporation Apr 2018 Executive Officer, in charge of Technology Relations, Sony Corporation Jul 2018 Chairman, Semiconductor Committee and Standardization Policy Committee, Japan Electronics and Information Technology Industries Association (JEITA) Jul 2019 Chief Technology Advisor, Sony Corporation Jul 2020 Fixed-term Executive, Sony Corporation Oct 2020 Senior Business Strategist, BIPROGY Inc. (formerly Nihon Unisys, Ltd.) (current) Mar 2022 Outside Director, the Company (current) Apr 2023 Advisor, Semiconductor and Digital Research and Education Organization, Kumamoto University (current) Dec 2024 Business Strategist, Harvest Biz Career Inc. (current) Significant concurrent positions: Senior Business Strategist, BIPROGY Inc.; Business Strategist, Harvest Biz Career Inc.

Apr 1982 Joined Sumitomo Metal Industries, Ltd. (now Nippon Steel Corporation) Apr 2008 Executive Officer, General Manager, Kansai Works, Production and Technology Division, Sumitomo Sitix Corporation (now SUMCO Corporation) Apr 2011 Managing Executive Officer, Director; Deputy General Manager, Production and Technology Division, Sumitomo Sitix Corporation Mar 2018 Representative Director, Executive Vice President, SUMCO Corporation Mar 2019 Representative Director, President, SUMCO TECHXIV Corporation Mar 2022 Full-time Advisor, SUMCO Corporation Mar 2024 Outside Director, the Company (current)

Apr 1978 Joined The Bank of Tokyo, Ltd. (now MUFG Bank, Ltd.) Aug 1991 Deputy Manager, Capital Markets Division I, The Bank of Tokyo, Ltd. Aug 1993 Deputy Manager, Sales Division I, The Bank of Tokyo, Ltd. Aug 2000 Deputy Branch Manager, Bangkok Branch, The Bank of Tokyo-Mitsubishi, Ltd. Jun 2004 Chief Examiner, On-site Guidance Office, Loan Department, The Bank of Tokyo-Mitsubishi, Ltd. Jul 2006 Joined Sharp Corporation; Overseas Business Division, Management and Control Apr 2010 Deputy General Manager, Accounting Division (in charge of IR), Sharp Corporation Apr 2013 Executive Officer, China Representative; Chairman and General Manager, Sharp (China) Investment Co., Ltd., Sharp Corporation Nov 2016 Joined the Company Dec 2016 Full-time Audit & Supervisory Board Member, the Company Mar 2021 Director, Full-time Audit and Supervisory Committee Member (current)

Oct 1984 Joined Sanwa Audit Corporation, Tokyo Marunouchi Office (now Deloitte Touche Tohmatsu LLC) May 1988 Registered as Certified Public Accountant Jun 2006 Partner, Deloitte Touche Tohmatsu (now Deloitte Touche Tohmatsu LLC) Nov 2013 Head Office, General Affairs, Deloitte Touche Tohmatsu LLC Jun 2019 Left Deloitte Touche Tohmatsu LLC Jul 2019 Representative, Yoshiyuki Higuchi Certified Public Accountant Office (current) Dec 2019 Outside Audit & Supervisory Board Member, EPS Holdings, Inc. (current) Mar 2021 Outside Director, Audit and Supervisory Committee Member, the Company (current) Jun 2022 Outside Audit & Supervisory Board Member, Taihei Dengyo Kaisha, Ltd. (current) Significant concurrent positions: Representative, Yoshiyuki Higuchi Certified Public Accountant Office; Outside Audit & Supervisory Board Member, EPS Holdings, Inc. and Taihei Dengyo Kaisha, Ltd.

Apr 1993 Joined Citibank, N.A. Oct 2001 Registered as attorney-at-law; joined Hideyuki Sakai Law Office (Bingham Sakai Mimura Aizawa Foreign Law Joint Enterprise) Jun 2006 Registered as attorney-at-law, New York State Bar Sep 2012 Legal Officer, International Atomic Energy Agency (IAEA) Apr 2015 Joined Anderson Mori & Tomotsune Apr 2016 Part-time Judge (Family Court Mediation Officer), Tokyo Family Court Jan 2019 Special Counsel, Anderson Mori & Tomotsune (current) Sep 2021 Consultant, Tilleke & Gibbins, Thailand Apr 2024 Member, Japanese Law Translation Promotion Council, Ministry of Justice (current) Oct 2024 Mediation Commissioner, Tokyo Family Court (current) Mar 2025 Outside Director, Audit and Supervisory Committee Member, the Company (current) Jun 2025 Outside Director, Audit and Supervisory Committee Member, Tsumura & Co. (current) Significant concurrent positions: Special Counsel, Anderson Mori & Tomotsune; Outside Director, Audit and Supervisory Committee Member, Tsumura & Co.