Apr 1974 Joined Mitsui Toatsu Chemicals, Inc. (now Mitsui Chemicals, Inc.) Apr 1977 Joined the Company Dec 1977 Director of the Company Aug 1983 Managing Director of the Company Jun 1985 Director and Executive Vice President of the Company Jun 1987 Representative Director and Executive Vice President of the Company May 1988 Representative Director, President, Harima Shoji Co., Ltd. (now Harima Chemicals Trading Co., Ltd.) Jun 1988 Representative Director, President of the Company Nov 1994 Representative Director, President, Harima MID Co., Ltd. (current) Apr 2004 Chairman, Shorai Foundation for Science and Technology Promotion (current) Oct 2012 Representative Director, President, Harima Chemicals, Inc. Jun 2014 Chairman, Rotor Co., Ltd. Jun 2026 Representative Director, Chairman of the Company (current)

Apr 1993 Joined the Company Apr 2005 Head of Development Office, Central Research Laboratory of the Company Jun 2008 Executive Officer of the Company Jun 2010 Director of the Company Jan 2011 General Manager, Corporate Planning Office of the Company Oct 2012 General Manager, Corporate Planning Group of the Company; General Manager, Information Systems Group of the Company; in charge of Audit Group and Operations Group of the Company Jun 2014 Managing Director of the Company; Managing Executive Officer of the Company; President and CEO, Rotor Co., Ltd. Jun 2020 Senior Managing Director of the Company; Senior Managing Executive Officer of the Company Jun 2021 General Manager, Resins and Chemicals Division of the Company; Director, Harima Chemicals, Inc. Mar 2023 General Manager, R&D Division of the Company; President, R&D Company of the Company Jun 2023 Chairman, Rotor Co., Ltd. Jun 2025 Representative Director, Senior Managing Director of the Company; Member, Nomination and Compensation Committee of the Company (current) Jun 2026 Representative Director, President of the Company (current); President Executive Officer of the Company (current) Representative Director, President, Harima Chemicals, Inc. (current) Representative Director, President, Harima Chemicals Trading Co., Ltd. (current)

Apr 1982 Joined The Taiyo Kobe Bank, Ltd. (now Sumitomo Mitsui Banking Corporation) Aug 2008 Deputy General Manager, Business Audit Department, the same bank (New York) Oct 2012 General Manager, Audit Group of the Company Oct 2013 Executive Officer of the Company Jun 2015 General Manager, Overseas Business Promotion Group of the Company Jun 2017 Director of the Company; Senior Executive Officer of the Company; in charge of Overseas Business Promotion of the Company; General Manager, Corporate Planning Group of the Company (current) Jun 2021 Managing Director of the Company; Managing Executive Officer of the Company Jul 2023 Chairman, Rotor Co., Ltd. (current) Jun 2026 Senior Managing Director of the Company (current); Senior Managing Executive Officer of the Company (current)

Apr 1983 Joined the Company Mar 2002 General Manager, Second Group, Central Research Laboratory of the Company Sep 2009 Manager, Resin & Chemicals Business Planning Section of the Company Nov 2013 Manager in charge of Audit Group of the Company Jun 2015 General Manager, Internal Control Group of the Company Mar 2019 General Manager, Audit Group of the Company Jun 2025 Director, Audit and Supervisory Committee Member of the Company (current) Auditor, Harima Chemicals, Inc. (current)

Apr 1984 Registered as attorney-at-law Apr 1987 Established Hokumon Sogo Law Office; continuing to present Jun 1987 Outside Audit & Supervisory Board Member of the Company Jun 2015 Director, Audit and Supervisory Committee Member of the Company (current) Apr 2020 Chairman, Nomination and Compensation Committee of the Company (current)

Sep 1985 Joined Minato Audit Corporation (now EY ShinNihon LLC) Apr 1991 Registered as Certified Public Accountant (current) Aug 1998 Partner, Century Audit Corporation (now EY ShinNihon LLC) Jul 2010 Senior Partner, ShinNihon LLC (now EY ShinNihon LLC) Sep 2015 Council Member, EY ShinNihon LLC Sep 2019 Vice Chair of the Council and Audit Committee Member, EY ShinNihon LLC Jul 2022 Director, Audit and Supervisory Committee Member of the Company (current) Representative, Hayashi Certified Public Accountant Office (current) Representative Director, Vice President, Hayashi Corporate Management Research Institute Co., Ltd. (current) Jun 2023 Outside Audit & Supervisory Board Member, Kansai Mirai Bank, Ltd. (current) Outside Audit & Supervisory Board Member, Shimadzu Corporation (current) Jun 2025 Member, Nomination and Compensation Committee of the Company (current)

Apr 1996 Joined Kyoto Prefectural Police Headquarters Dec 2007 Registered as attorney-at-law; joined Daiichi Law Office LPC Jan 2017 Partner, Daiichi Law Office LPC (current) Jun 2018 Outside Audit & Supervisory Board Member, Kimura Kohki Co., Ltd. (currently Director, Audit and Supervisory Committee Member) Jun 2025 Director, Audit and Supervisory Committee Member of the Company (current)