Apr 1986 Joined the Company Feb 2016 Seconded to Ishihara Engineering Partners Co., Ltd. Jun 2016 Seconded to the same company (Executive Officer) Jul 2017 Seconded to Fuji Titanium Industry Co., Ltd. (Director, Managing Executive Officer) Jun 2020 General Manager, Administration Department, Corporate Planning and Management Division, the Company Jun 2020 Executive Officer, Deputy General Manager, Corporate Planning and Management Division Jun 2021 Managing Executive Officer, General Manager, Corporate Planning and Management Division Jun 2022 Director, Managing Executive Officer Jun 2023 Representative Director, Senior Managing Executive Officer Apr 2024 Representative Director, President and Executive Officer (current); Chief Compliance Officer (CCO) (current)

Dec 1992 Joined the Company Jun 2018 Executive Officer, General Manager, Development and Marketing Department, Bioscience Sales Division Feb 2019 General Manager, Development and Marketing Department, Bioscience Business Division Jun 2021 Managing Executive Officer, Deputy General Manager, Bioscience Business Division Jun 2022 General Manager, Bioscience Business Division Jun 2024 Representative Director, Director, Senior Managing Executive Officer Jun 2026 Representative Director, Director, Vice President and Executive Officer (current); in charge of Organic Chemicals Business (current)

Apr 1980 Joined the Company Jun 2021 Executive Officer, General Manager, General Affairs and Human Resources Division (current) Jun 2023 Managing Executive Officer Jun 2024 Director, Managing Executive Officer Jun 2026 Director, Senior Managing Executive Officer (current)

Apr 1986 Joined the Company Jun 2022 Executive Officer, Deputy Plant Manager, Yokkaichi Plant Jun 2023 Managing Executive Officer, Plant Manager, Yokkaichi Plant Jun 2024 Director, Managing Executive Officer (current); General Manager, Inorganic Chemicals Business Division (current)

Apr 1988 Joined the Company Jun 2023 Executive Officer, Deputy General Manager, Corporate Planning and Management Division Jun 2024 Managing Executive Officer, General Manager, Corporate Planning and Management Division (current) Jun 2025 Director, Managing Executive Officer (current)

Apr 1981 Joined the Company Feb 2017 General Manager, Logistics Department Jun 2021 Representative Director, President and Executive Officer, Ishihara Engineering Partners Co., Ltd. Jun 2025 Director, Managing Executive Officer, the Company (current); Plant Manager, Yokkaichi Plant (current)

Oct 2001 Registered with the Dai-Ichi Tokyo Bar Association; joined Onishi Shoichiro Law Office May 2015 Senior Partner, Onishi Shoichiro Law Office (current) May 2016 Outside Director (Audit and Supervisory Committee Member), Toho Co., Ltd. (current) Jun 2020 Director, the Company (current)

Apr 2000 Joined Tomy Company, Ltd. (now TAKARA TOMY Co., Ltd.) Aug 2008 Manager, Internal Control Promotion Department, Corporate Planning Office, the same company Oct 2016 Joined Topre Corporation; Chief Manager (equivalent to General Manager), Audit and Supervisory Board Member Support Jul 2017 General Manager, Audit Department, the same company Jun 2019 General Manager, Corporate Planning Department and General Manager, Audit Department, the same company Jun 2020 Director, the same company Jun 2022 Senior Advisor, Toprec Co., Ltd. Jan 2023 Director, Morpho, Inc. Jun 2023 Director, the Company (current) Jun 2024 Outside Director (Audit and Supervisory Committee Member), IRISO Electronics Co., Ltd. (current); Outside Director (Audit and Supervisory Committee Member), Stella Chemifa Corporation (current)

Apr 1984 Joined Shikibo Ltd. Mar 1997 Joined Kansai Employers' Association (now Kansai Economic Federation) Apr 2004 General Manager, Membership Department, Kansai Employers' Association (now Kansai Economic Federation) Apr 2013 Joined 21st Century Job Foundation Apr 2014 Director, Kansai Office, 21st Century Job Foundation (current) Jun 2017 Director, Sakai Chemical Industry Co., Ltd. Jun 2021 Outside Director, Sanyo Chemical Industries, Ltd. (current) Jun 2024 Outside Director, Sumitomo Densetsu Co., Ltd. Jun 2025 Director, the Company (current) May 2026 Director (Audit and Supervisory Committee Member), Studio Alice Co., Ltd. (current)

Apr 1987 Joined the Company Feb 2019 General Manager, Accounting Department, Finance Division Jun 2021 General Manager, Administration Department, Yokkaichi Plant Jun 2022 General Manager, Information Systems Department, Corporate Planning and Management Division Mar 2023 General Manager, Funding Department, Finance Division Dec 2024 General Manager, Secretariat Department, General Affairs and Human Resources Division Mar 2025 Counselor Jun 2025 Audit and Supervisory Board Member (current)

Apr 1981 Joined the Company Apr 2007 Executive Officer, General Manager, Sales Administration Department, Bioscience Sales Division Feb 2009 General Manager, External Relations and Sales Management Department, Bioscience Sales Division Jun 2018 General Manager, Legal Division Jun 2020 Managing Executive Officer Jun 2022 Advisor Jun 2023 Audit and Supervisory Board Member (current)

Apr 1987 Joined Daiwa Bank, Ltd. (now Resona Bank, Limited) Oct 2009 General Manager, Corporate Governance Office, Resona Holdings, Inc. Apr 2015 General Manager, Human Resources Service Department, Saitama Resona Bank, Limited Apr 2017 Outside Audit and Supervisory Board Member, Kinki Osaka Bank, Ltd. Apr 2018 Director (Audit and Supervisory Committee Member), Kansai Mirai Financial Group, Inc. Jun 2020 Director, Managing Executive Officer, J&S Insurance Service Co., Ltd. Apr 2023 Advisor, the same company Jun 2023 Advisor, the Company Jun 2023 Audit and Supervisory Board Member, the Company (current)

Apr 1991 Registered as an attorney with the Osaka Bar Association Apr 1998 Established Koike Law Office Apr 2004 Established Ohara & Koike Law Office Apr 2012 Vice President, Osaka Bar Association Apr 2019 Managing Director, Japan Federation of Bar Associations Jun 2023 Audit and Supervisory Board Member, the Company (current)