Apr 1973 Joined Manac Inc. Jun 1990 Director, Manac Inc. Jun 1998 Director, General Manager of Sales Division, Manac Inc. Jun 2001 Representative Managing Director, General Manager of Business Division, Manac Inc. Jun 2003 Representative Senior Managing Director, Manac Inc. Apr 2006 Representative Director, President, Manac Inc. Apr 2009 Representative Director, President, Hakko Tsusho Co., Ltd. Jun 2013 Representative Director, Chairman, Hakko Tsusho Co., Ltd. Apr 2018 Representative Director, Chairman, Manac Inc. Jul 2020 Outside Director, Nitto Seimo Co., Ltd. (current) Oct 2021 Representative Director, Chairman, the Company Jun 2022 Representative Director, Chairman and President, the Company (current)

Apr 1986 Joined Toyo Soda Manufacturing Co., Ltd. (now Tosoh Corporation) May 2010 Joined Manac Inc., General Manager, R&D Department Oct 2010 General Manager, Research Laboratory, Manac Inc. Apr 2017 General Manager, Bromine and Flame Retardant Solutions Business Division, Manac Inc. Jul 2018 Executive Officer, General Manager, Bromine and Flame Retardant Solutions Business Division, Manac Inc. Jun 2022 Director and Executive Officer, General Manager, Material Solutions Business Division, in charge of Fine Chemicals Business Division, Health Support Business Division, Purchasing Department, Functional Materials R&D Department and Digital Promotion Department, involved in Management Administration Department and Hakko Tsusho Co., Ltd., Manac Inc. Jul 2024 Executive Officer, General Manager, Business Development Center, Manac Inc. Feb 2025 Director and Executive Officer, General Manager, Business Development Center, Manac Inc. Jun 2025 Director, the Company (current)

Jan 2009 Joined Manac Inc. Jul 2021 General Manager, Strategic Planning Office, Corporate Planning and Administration Division, Manac Inc. Jul 2022 General Manager, Strategic Planning Department, Manac Inc. Oct 2022 General Manager, Corporate Planning Office and Finance Office, the Company (transferred) Jan 2023 General Manager, Secretariat, General Planning and Finance Office, Manac Inc. Jun 2025 Director, the Company (current) Mar 2026 Director, Kinkai Chemical Co., Ltd. (current)

Apr 1982 Joined Japan Patent Office Mar 1997 Assistant Chief, Clerical Section, Trial and Appeal Department, Japan Patent Office Apr 2000 Senior Chief Examiner, Second Patent Examination Department, Japan Patent Office Apr 2002 Part-time Lecturer, Graduate School, Shinshu University Apr 2003 Principal Senior Examiner, Second Patent Examination Department, Japan Patent Office Oct 2003 Associate Professor, National Graduate Institute for Policy Studies Apr 2005 Professor, Graduate School of Professional Studies (MIP), Tokyo University of Science Apr 2018 Professor, Graduate School of Professional Studies (MOT), Tokyo University of Science Jun 2023 Outside Director, Sanken Electric Co., Ltd. Jun 2024 Outside Director (part-time), the Company (current) Apr 2025 Patent Attorney Adviser, TRY International Patent Firm (current) Apr 2025 Contract Professor, Graduate School of Professional Studies, Tokyo University of Science (current) Jun 2025 Outside Director (Audit and Supervisory Committee Member), Sanken Electric Co., Ltd. (current) Jun 2026 Outside Director, Manac Inc. (current)

Apr 1982 Joined Manac Inc. Apr 2003 General Manager, General Affairs and Human Resources Department, Management Division, Manac Inc. Apr 2007 General Manager, Purchasing Department, Manac Inc. Jun 2010 General Manager, Administration Department, Manac Inc. Jun 2018 Executive Officer, Deputy General Manager, Administration Department, Manac Inc. Apr 2019 General Manager, Internal Audit Office, Manac Inc. Jun 2019 Director, Audit and Supervisory Committee Member, Manac Inc. Jun 2020 Audit & Supervisory Board Member, Hakko Tsusho Co., Ltd. Oct 2021 Audit & Supervisory Board Member, Manac Inc. (current) Oct 2021 Full-time Director, Audit and Supervisory Committee Member, the Company (current) Mar 2026 Audit & Supervisory Board Member, Kinkai Chemical Co., Ltd. (current)

Jun 1975 Director, Kowa Bussan Co., Ltd. Mar 1992 Standing Member, Fukuyama Chamber of Commerce and Industry Jan 1995 Representative Director, President, Kowa Bussan Co., Ltd. Jun 1996 Outside Director, Hiroshima Home Television Co., Ltd. (current) Jun 2003 Audit & Supervisory Board Member (part-time), Manac Inc. Oct 2009 Chairman, Fukuyama City Board of Education Dec 2011 Representative Director, President, Matsunaga Country Club Co., Ltd. (current) Jun 2015 President, Fukuyama Corporate Tax Association; Councillor, National Federation of Corporate Tax Associations; Director, Audit and Supervisory Committee Member, Manac Inc. Oct 2021 Outside Director, Audit and Supervisory Committee Member, the Company (current) Jan 2023 Representative Director, Chairman and President, Kowa Bussan Co., Ltd. (current) Jun 2024 Representative Director, President, FM Fukuyama Co., Ltd. (current) Jun 2024 President, Hiroshima Rowing Association (current)

Apr 1973 Joined Ministry of Finance May 1981 Second Secretary, Embassy of Japan in the Soviet Union Apr 1983 First Secretary, Embassy of Japan in the Soviet Union May 1983 Consul, Consulate General of Japan in Los Angeles May 1988 Counselor, Ministry of Finance, stationed in London (seconded to Export-Import Bank of Japan) Jul 1992 Director, Research Office, General Affairs Division, Securities Bureau, Ministry of Finance Jul 1997 Director, General Affairs Division, Tax Bureau, Ministry of Finance Jul 2005 Director-General, Policy Research Institute, Ministry of Finance Jan 2007 Special Research Fellow, Policy Research Institute, Ministry of Finance (current) Apr 2007 Professor, Chuo University Law School Apr 2007 Senior Research Fellow, Tokyo Foundation for Policy Research Oct 2009 Representative Director, Japan Tax Institute (current) Jun 2015 Outside Director, Shin Nippon Air Technologies Co., Ltd. Mar 2018 Research Director, Tokyo Foundation for Policy Research Jun 2023 Outside Director, Audit and Supervisory Committee Member, the Company (current) May 2025 Senior Policy Officer, Tokyo Foundation for Policy Research (current)

Apr 1994 Joined Tosoh Corporation Jul 1994 Logistics Management Section, Logistics Department, Nanyo Plant, Tosoh Corporation Apr 1996 Logistics Management Section, Logistics Department, Tosoh Corporation May 1998 Amines Department, Fine Chemicals Business Division, Tosoh Corporation Jun 2000 Amines Department, Organic Chemicals Business Division, Tosoh Corporation Feb 2010 Tosoh (Shanghai) Trading Co., Ltd. Oct 2014 Planning and Development Office, Urethane Business Division, Tosoh Corporation Mar 2015 Functional Urethane Department, Urethane Business Division, Tosoh Corporation Jun 2022 Seconded to Tosoh Hellas Single Member S.A. Jun 2026 Executive Officer, General Manager, Organic Chemicals Business Division, Tosoh Corporation (current) Jun 2026 Outside Director (part-time), the Company (scheduled)

Apr 1992 Joined Japan External Trade Organization (JETRO) Jun 2000 Representative Director, I.E.J. Inc. Dec 2006 Staff, House of Representatives (special national public service position) Jun 2013 Representative Director, Miteri Associates Inc. (current) Apr 2014 Director, TABLE FOR TWO USA (U.S. nonprofit organization) (current) Mar 2018 Director, TABLE FOR TWO International (NPO) (current) Sep 2021 Director, Pokémon With You Foundation (current) Jun 2022 Director, Matsuoka Corporation Co., Ltd. Jul 2022 Director, Seven J Digital Partners Inc. (current) Jun 2023 Outside Director (part-time), the Company (current)