Apr 2001 Joined TCC Co., Ltd. Jun 2002 Non-Executive Director of the Company Sep 2003 Full-time Director of the Company Oct 2005 Director, General Manager, Overseas Division Mar 2008 Director and Vice President Apr 2013 Representative Director and Vice President Apr 2016 Director, General Manager, Production Procurement Systems Office Jan 2017 Director, General Manager, Domestic Production Business Division Apr 2017 Representative Director and Vice President Mar 2018 Representative Director and Vice President; concurrently General Manager, Sales Division Mar 2020 Representative Director, President and Executive Officer (current)

Apr 1976 Joined The Bank of Tokyo, Ltd. (now MUFG Bank, Ltd.) Oct 2005 Joined the Company; General Manager, President's Office Oct 2006 Executive Officer, General Manager, Corporate Planning Office Mar 2007 Director, General Manager, Corporate Planning Office Mar 2008 Director and Vice President; concurrently General Manager, Corporate Planning Office Mar 2009 Director and Vice President; concurrently General Manager, Corporate Planning Office; in charge of finance and management Apr 2013 Representative Director and Vice President; concurrently General Manager, Corporate Planning Office Apr 2016 Director, General Manager, Corporate Planning Office Mar 2020 Director, General Manager, Corporate Planning Office, Executive Officer Mar 2023 Director (current)

Mar 1987 Joined Daisho Pretec Co., Ltd. (now the Company) Apr 1999 General Manager, Automatic Machine Manufacturing Department Jul 2005 Executive Officer, General Manager, Circuit Manufacturing Department Apr 2015 Executive Officer, Plant Manager, Nemuro Plant Jan 2018 Executive Officer, General Manager, Domestic Operations Office Jan 2019 Director, Executive Officer, General Manager, Domestic Operations Office Apr 2020 Managing Executive Officer, General Manager, Domestic Business Division Jan 2025 Managing Executive Officer, General Manager, Production Business Division Mar 2025 Director, Managing Executive Officer, General Manager, Production Business Division (current)

Apr 1984 Joined Daisho Pretec Co., Ltd. (now the Company) Apr 1999 Director of the Company Oct 2002 Director, General Manager, Lens Manufacturing Department Mar 2008 Director, in charge of Lens Business Division Oct 2011 Director, Plant Manager, Todoroki Plant Jul 2017 Chairman, TROIS ELECTRONICS (WUXI) CO., LTD. Apr 2020 General Manager, Internal Audit Office Apr 2022 Executive Officer, General Manager, Quality Division Mar 2025 Director, Audit and Supervisory Committee Member (current)

Apr 1975 Joined Pioneer Corporation Jan 2004 General Manager, Procurement Division, Pioneer Corporation Oct 2008 Joined Fujitsu Component Limited; General Manager, Purchasing Department, Operations Control Division Jul 2010 Joined Nichicon Corporation; General Manager, Purchasing Department, Production Division Mar 2012 Joined U.M.C. Electronics Co., Ltd.; Deputy General Manager, Purchasing Division Mar 2015 Executive Officer, Deputy General Manager, Purchasing Division, U.M.C. Electronics Co., Ltd.; Deputy Chairman, Dongguan Plant, China Aug 2015 President and Director, UMC Vietnam Co., Ltd. Apr 2019 Managing Executive Officer, U.M.C. Electronics Co., Ltd.; President, U.S. sales company; Chairman, Mexico company Mar 2021 Representative Director, Shinten Logistics Co., Ltd. Apr 2024 Advisor to the Company Mar 2025 Director (current)

Apr 1990 Joined Chori Co., Ltd. Oct 2004 Joined Planet Co., Ltd. (now Sojitz Planet Corporation) Apr 2012 Head, Market Development Office, Sojitz Planet Corporation Apr 2017 General Manager, Electronic Materials Department, Sojitz Planet Corporation Apr 2019 General Manager, High-Performance Materials Department, Sojitz Planet Corporation Apr 2021 Assistant Segment Leader, Industry Segment, Sojitz Planet Corporation Jan 2023 Joined Miyakawa Co., Ltd. Apr 2023 Director, General Manager, Sales Division, Miyakawa Co., Ltd. (current) Mar 2025 Director of the Company (current)

Sep 2011 Passed the National Bar Examination Dec 2012 Registered as an attorney-at-law Dec 2012 Joined Tsuyuki Akazawa Law Office (current) Mar 2020 Director, Audit and Supervisory Committee Member of the Company (current)

Apr 2006 Joined OJT Solutions Co., Ltd. Mar 2009 Completed doctoral program, Graduate School of Aichi Institute of Technology; obtained Ph.D. (Management and Information Science) Apr 2011 Project Assistant Professor, Manufacturing Management Research Center, The University of Tokyo Apr 2013 Associate Professor, Graduate School of Management of Technology, Yamagata University Apr 2018 Associate Professor, Faculty of Business Administration, Aichi Institute of Technology Apr 2020 Professor, Faculty of Business Administration, Aichi Institute of Technology (current) Mar 2025 Director, Audit and Supervisory Committee Member of the Company (current)