Apr 1987 Joined Kyowa Hakko Kogyo Co., Ltd. Jul 2011 Joined Kyowa Hakko Chemical Co., Ltd. (now KH Neochem Co., Ltd.); General Manager, Basic Chemicals Business Division Mar 2013 Director and Executive Officer, the Company Mar 2016 Managing Director and Executive Officer, the Company Mar 2017 Director, Executive Vice President and Executive Officer, the Company Mar 2019 Representative Director, President and Executive Officer, the Company Mar 2020 Representative Director, President and Executive Officer, the Company (current)

Apr 1998 Joined Kyowa Hakko Kogyo Co., Ltd. Aug 2006 Seconded as Director, Kyowa Hakko U.S.A., Inc. Mar 2011 Seconded as Executive Vice President, Kyowa Hakko Chemical Americas, Inc. Aug 2013 Manager, Sales Group 2, Chemicals Sales Department, the Company Jan 2023 General Manager, Corporate Planning Department, the Company Mar 2024 Executive Officer, General Manager, Corporate Planning Department, the Company Mar 2025 Director, Executive Officer, General Manager, Corporate Planning Department, the Company Mar 2026 Director, Senior Managing Executive Officer, General Manager, Corporate Planning Department, the Company (current)

Apr 1979 Joined Hitachi, Ltd. Jul 1982 Joined Bank of America N.A., Asia Headquarters Mar 1986 Joined Pasona Inc.; seconded and transferred to Educonsult Co., Ltd. (now Scholar Consult Co., Ltd.) Apr 2000 Partner, Scholar Consult Co., Ltd. (current) Apr 2000 Associate Professor, Nihonbashi Gakkan University (now Kaichi International University) Jan 2005 Director, Scholar Consult Co., Ltd. (retired Dec 2015) Apr 2008 Professor, Nihonbashi Gakkan University (now Kaichi International University) Mar 2019 Director, the Company (current) Aug 2020 Outside Director, Toyo Engineering Corporation (current) Apr 2022 Professor Emeritus and Visiting Professor, Kaichi International University (current) Jun 2022 Outside Director, Nippon Seikan K.K. (current)

Apr 1981 Joined Argonne National Laboratory, USA May 1983 Joined Lawrence Berkeley National Laboratory, USA Feb 1984 Joined Mitsubishi Chemical Industries Ltd. (now Mitsubishi Chemical Corporation) Jan 1999 Seconded as President, Verbatim Corporation (U.S. subsidiary) Apr 2001 General Manager, Corporate Planning Office, Mitsubishi Chemical Corporation (retired Jan 2002) Feb 2002 Director, Rohm and Haas Japan K.K. (now Dow Chemical Japan Ltd.) (retired Dec 2006) Jan 2007 President and Representative Director, Heraeus K.K. (retired Sep 2018) Oct 2018 President and Representative Director, Tsuchiya International Consulting Co., Ltd. (current) Jun 2019 Outside Director, Soken Chemical & Engineering Co., Ltd. (retired Jun 2024) Mar 2020 Director, the Company (current)

Apr 1992 Registered as attorney-at-law; joined Bansho, Seo & Hashimoto Law Offices (now Tokyo Hachobori Law Office) Apr 2002 Partner, Tokyo Hachobori Law Office Mar 2003 Seconded to Securities and Exchange Surveillance Commission (General Affairs and Inspection Division) Mar 2005 Rejoined Tokyo Hachobori Law Office as Partner (current) Jun 2010 Outside Audit & Supervisory Board Member, Inui Warehouse Co., Ltd. (now Inui Steamship Co., Ltd.) (retired Sep 2014) Jun 2014 Outside Audit & Supervisory Board Member, NEC Networks & System Integration Corporation (retired Jun 2022) Mar 2020 Director, the Company (current) Feb 2026 Outside Director, Tachibana Securities Co., Ltd. (current)

Apr 1988 Joined Fujisawa Pharmaceutical Co., Ltd. (now Astellas Pharma Inc.) Oct 2012 General Manager, Planning Department, Astellas Business Service Co., Ltd. Oct 2014 General Manager, Operations Department, the same company Oct 2017 Joined the Company Jan 2019 General Manager, General Affairs Department, the Company Jan 2020 Executive Officer responsible for corporate functions (HR, legal, general affairs, IT, compliance), General Manager, Management Administration Department, the Company Apr 2021 Executive Officer, General Manager, Management Administration Department, the Company Apr 2023 Managing Executive Officer, General Manager, Management Administration Department, the Company Mar 2024 Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1992 Joined The Nippon Kogyo Ginko, Ltd. (now Mizuho Bank, Ltd.) May 2015 Group Head and Managing Director, M&A Advisory Group, Mizuho Securities USA LLC May 2021 Managing Director, Materials, Healthcare and Energy Sectors, Global Investment Banking Division, Mizuho Securities Co., Ltd. Apr 2022 Executive Director, Group Head, Resources and Materials Industries, Global Investment Banking Division, Mizuho Securities Co., Ltd. Apr 2023 Managing Executive Officer, Group Head, Resources and Materials Industries, Global Investment Banking Division, Mizuho Securities Co., Ltd. (retired Dec 2025) Jan 2026 Joined the Company Mar 2026 Director, Managing Executive Officer, the Company (current)

Apr 1992 Registered as attorney-at-law; joined Tokyo Yaesu Law Office (now Asahi Law Offices) Apr 1998 Partner, Asahi Law Offices (current) Jun 2014 Outside Audit & Supervisory Board Member, Nochu Trust & Banking Co., Ltd. (current) Jun 2016 Outside Director (Audit and Supervisory Committee Member), Odelic Co., Ltd. (retired Jun 2022) Mar 2020 Audit & Supervisory Board Member, the Company Mar 2024 Director (Audit and Supervisory Committee Member), the Company (current) Jun 2025 Outside Director, Amano Corporation (current)

Oct 1985 Joined Ohta Showa Auditing Corporation (now EY ShinNihon LLC) Mar 1989 Registered as Certified Public Accountant May 2000 Partner, Ohta Showa Century Auditing Corporation (now EY ShinNihon LLC) Jul 2006 Senior Partner, ShinNihon Auditing Corporation (now EY ShinNihon LLC) (retired Jun 2023) Jul 2023 Established Murohashi Certified Public Accountant Office (current) Jun 2024 Outside Audit & Supervisory Board Member, SB Technology Corp. (retired Sep 2024) Mar 2026 Director (Audit and Supervisory Committee Member), the Company (current)