Apr 1981 Joined Nippon Mining Co., Ltd. (now JX Metals Corporation) Apr 1995 Joined the Company Mar 1998 Managing Director, the Company Mar 1999 Representative Director, Executive Vice President, the Company Mar 1999 Representative Director, President, I.S. Engineering Co., Ltd. (now IF Management Co., Ltd.) (current) Mar 2000 Representative Director, President, the Company Apr 2001 Managing Director, KOHOKU ELECTRONICS (S) PTE. LTD. (current) Apr 2001 Managing Director, KOHOKU ELECTRONICS (M) SDN. BHD. Jun 2002 Chairman, Suzhou Kohoku Optoelectronics Co., Ltd. Oct 2012 Chairman, Dongguan Kohoku Electronics Co., Ltd. Feb 2015 Managing Director, KOHOKU LANKA (PVT) LTD. Mar 2025 Representative Director, President and CEO, the Company (current)

Apr 1981 Joined Konan Town Office (now Nagahama City Office) Aug 1985 Joined the Company Mar 2004 Director, Head of Corporate Support Division, the Company Oct 2012 Director, Dongguan Kohoku Electronics Co., Ltd. Sep 2016 Director, KOHOKU ELECTRONICS (M) SDN. BHD. Sep 2017 General Manager, Suzhou Kohoku Optoelectronics Co., Ltd. Aug 2019 Managing Director, Executive Officer, the Company Feb 2022 Chairman, Suzhou Kohoku Optoelectronics Co., Ltd. Mar 2022 Senior Managing Director, Executive Officer, the Company Apr 2022 General Manager, Lead Terminal Sales Department, the Company Aug 2024 Chairman, Dongguan Kohoku Electronics Co., Ltd. Mar 2025 Senior Managing Director, Assistant to CEO, the Company Jan 2026 Senior Managing Executive Officer, General Manager, Lead Terminal Business Division, the Company (current) Mar 2026 Senior Managing Director, the Company (current)

Apr 1990 Joined Nomura Securities Co., Ltd. Aug 2016 General Manager, Corporate Finance Division, Kyoto Branch, Nomura Securities Co., Ltd. Apr 2020 Head of Corporate Finance Department, Kyoto, Nomura Securities Co., Ltd. Apr 2022 Executive Director, General Affairs, IB Group, Financial Crime Countermeasures Department, Nomura Securities Co., Ltd. Apr 2024 Executive Director, General Affairs, IB Group, Compliance Management Department, Nomura Securities Co., Ltd. Sep 2024 Joined the Company, Deputy General Manager, General Affairs Department Jan 2025 Executive Officer, Special Assignment General Manager, General Affairs Department, the Company Mar 2025 Director and CFO, the Company (current) Apr 2026 Managing Executive Officer, General Manager, General Affairs Department, the Company (current)

Oct 1996 Lecturer (part-time research fellow), Nagoya University Apr 1997 Research Fellow (PD), Japan Society for the Promotion of Science Dec 1997 Lecturer, Faculty of Economics, Shiga University Apr 1999 Associate Professor, Faculty of Economics, Shiga University Apr 2000 Associate Professor, Faculty of Economics, and Associate Professor, Graduate School of Economics, Shiga University Apr 2007 Professor, Faculty of Economics, Shiga University (current), and Professor, Graduate School of Economics, Shiga University (current) Mar 2023 Director, the Company (current)

Jan 1989 Joined Philips (Netherlands) Feb 1991 Research, University of Nottingham (UK) Nov 1996 Research, University of Cambridge (UK) Apr 1998 Joined Alps Technology Centre (UK) Jan 2010 Joined Namiki Precision Jewel Co., Ltd. Nov 2017 Joined Daichi Chemical Industry Co., Ltd. Feb 2020 Senior Commercial Officer, Technology, Business and Trade, British Embassy Mar 2025 Director, the Company (current)

Apr 1983 Joined Swiss Bank Corporation Jan 1987 Executive Director, Head of Asia Regional Lending, Credit Suisse (Head Office) Jan 1996 Head of Trade Finance, Credit Suisse, Tokyo Branch Nov 1997 President and CEO, Goleipushieru Boeki K.K. Sep 2005 Deputy Branch Manager, UBS AG, Osaka Branch May 2023 President and CEO, DoSwiss Japan K.K. (current) Mar 2025 Director, the Company (current)

Apr 1973 Joined Konishi Co., Ltd. Apr 2007 General Manager, Konishi Trading (Shanghai) Co., Ltd. Apr 2010 Director, Executive Officer, Deputy General Manager, Chemical Products Business Division, Konishi Co., Ltd. Apr 2011 Director, Executive Officer, General Manager, Chemical Products Business Division, Konishi Co., Ltd. Apr 2012 Representative Director, President, Maruyasu Sangyo Co., Ltd. May 2018 Advisor (part-time), Maruyasu Sangyo Co., Ltd. Dec 2018 Director, Audit and Supervisory Committee Member, the Company (current)

Apr 1985 Joined Nippon Mining Co., Ltd. (now JX Metals Corporation) Oct 2006 Registered as attorney-at-law Apr 2012 Opened Sazanami Law Office; Head of Office (current) Jul 2015 Audit and Supervisory Board Member, the Company Mar 2025 Director, the Company (current)

Mar 1978 Joined Chuo Kaikei Audit Corporation Mar 1981 Registered as Certified Public Accountant Apr 1995 Representative Partner, Chuo Kaikei Audit Corporation Oct 2005 Board Member, Chuo Kaikei Audit Corporation Aug 2007 Joined Kyoto Audit Corporation Jul 2017 Opened Takatsu Certified Public Accountant Office; Head of Office (current) Jul 2017 General Manager, Self-Regulation and Operations Division, Japanese Institute of Certified Public Accountants Jun 2022 Auditor, Kyoto City Tourism Association (Public Interest Incorporated Association) (current) Mar 2023 Auditor, Kyoto International Conference Hall (Public Interest Incorporated Foundation) (current) Jun 2024 Auditor, KDDI Foundation (Public Interest Incorporated Foundation) (current) Mar 2025 Director, the Company (current)