Apr 1987 Joined the Company Apr 2003 Manager, First Sales Section, Sales Department, the Company Jul 2004 Manager, Sales Section, Sales Department, the Company Apr 2007 Deputy General Manager, Sales Department, and Manager, Sales Section, the Company Apr 2010 Assistant General Manager, Sales Department, and Manager, Sales Section, the Company Jan 2012 General Manager, Sales Department, and Manager, Development and Operations Section, the Company Nov 2015 General Manager, Sales Department, the Company, and General Manager, Nitei Seiko (Shanghai) Trading Co., Ltd. Jan 2016 General Manager, Nitei Seiko (Shanghai) Trading Co., Ltd. May 2019 Plant Manager, Nakase Smelting Plant, the Company Jun 2019 Director in charge of Nakase Smelting Plant, and Plant Manager, Nakase Smelting Plant, the Company Jul 2019 Director, Nitei Seiko (Shanghai) Trading Co., Ltd. Jun 2022 Director in charge of Nakase Smelting Plant, the Company Jun 2022 Representative Director, President, in charge of Nakase Smelting Plant, the Company Jul 2022 Director, Nihon Atomize Kako Co., Ltd. (current) Jun 2023 Director, Nitei Seiko (Shanghai) Trading Co., Ltd. (current) Jun 2025 Representative Director, President, in charge of Nakase Smelting Plant and Technology Development Department, the Company (current)

Apr 1983 Joined Nihon Shiken Kogyo Co., Ltd. Feb 1986 Joined the Company Apr 1995 Manager, Development Section, Nakase Smelting Plant, the Company Oct 1995 Manager, Technology Section and Quality Assurance Section, Nakase Smelting Plant, the Company Apr 2001 Deputy Plant Manager, Nakase Smelting Plant, and Manager, Technology Section and Quality Assurance Section, the Company Apr 2003 Deputy Plant Manager, Nakase Smelting Plant, and Manager, Technology Section, the Company Apr 2009 Assistant Plant Manager, Nakase Smelting Plant, the Company Jan 2012 Plant Manager, Nakase Smelting Plant, the Company Jul 2013 Executive Officer and Plant Manager, Nakase Smelting Plant, the Company Jun 2014 Director and Plant Manager, Nakase Smelting Plant, the Company Jun 2016 Director, Nitei Seiko (Shanghai) Trading Co., Ltd. May 2019 Director in charge of Planning and Administration Department and Nakase Smelting Plant, and General Manager, Planning and Administration Department, the Company May 2019 Director, Nihon Atomize Kako Co., Ltd. Jun 2019 Managing Director in charge of Accounting Department and Planning and Administration Department, and General Manager, Planning and Administration Department, the Company Jul 2019 Chairman, Nitei Seiko (Shanghai) Trading Co., Ltd. Jun 2022 Senior Managing Director in charge of Accounting Department and Planning and Administration Department, and General Manager, Planning and Administration Department, the Company Jun 2023 Senior Managing Director, the Company (current) Jun 2023 Vice President, Nihon Atomize Kako Co., Ltd. (current)

Mar 1986 Joined the Company Apr 2003 General Manager, Osaka Sales Office, and Development Office, the Company Jun 2004 General Manager, Osaka Sales Office, the Company Apr 2009 Deputy General Manager, Sales Department, and General Manager, Osaka Sales Office, the Company Mar 2011 Deputy General Manager, Sales Department, and Manager, Sales Section, the Company Jan 2016 General Manager, Sales Department, and Manager, Sales Section, the Company Oct 2016 General Manager, Sales Department, the Company Jul 2019 Director, Nitei Seiko (Shanghai) Trading Co., Ltd. Jun 2021 Director in charge of Sales Department, and General Manager, Sales Department, the Company Jun 2023 Chairman, Nitei Seiko (Shanghai) Trading Co., Ltd. (current)

Apr 1987 Joined Nissho Iwai Corporation (now Sojitz Corporation) Oct 2006 Manager, Advanced Surfactant Section, Tokyo Functional Chemicals Department, Sojitz Corporation May 2007 General Manager, Chemicals Department, Sojitz Thailand Co., Ltd. Apr 2013 Deputy General Manager, Kansai Business Division, Environmental and Materials Division, Sojitz Corporation Apr 2015 General Manager, Kansai Business Division, Chemicals Division, Sojitz Corporation Nov 2018 Assistant to General Manager, Chemicals Division, Sojitz Corporation Apr 2021 Joined the Company, Deputy General Manager, Planning and Administration Department Apr 2022 Executive Officer, General Manager attached to Planning and Administration Department, the Company Jun 2023 Director, Nitei Seiko (Shanghai) Trading Co., Ltd. (current) Jun 2023 Director in charge of Accounting Department and Planning and Administration Department, and General Manager, Planning and Administration Department, the Company Jun 2024 Director, Nihon Atomize Kako Co., Ltd. (current) Jun 2025 Director in charge of Accounting Department, Planning and Administration Department, and Agri Business Promotion Office, and General Manager, Planning and Administration Department, the Company (current)

Apr 1980 Joined Tokuyama Soda Co., Ltd. (now Tokuyama Corporation) Apr 2002 General Manager, Sales Department, Tokuyama Fine Chemicals Co., Ltd. Apr 2006 Executive Officer, Deputy Head, Functional Materials Division, Tokuyama Fine Chemicals Co., Ltd. Jan 2009 Executive Officer, Head, Functional Materials Division, Tokuyama Fine Chemicals Co., Ltd. Jun 2010 Director, Head of Research and Development Division, Tokuyama Fine Chemicals Co., Ltd. Jun 2011 Managing Executive Officer, Head of Research and Development Division, Tokuyama Fine Chemicals Co., Ltd. Jun 2013 Director and Managing Executive Officer, Tokuyama Fine Chemicals Co., Ltd. Jun 2015 Adviser, Tokuyama Fine Chemicals Co., Ltd. Mar 2016 Outside Director, Double Scope Co., Ltd. Jul 2016 Adviser, Nihon Zairyo Giken Co., Ltd. Mar 2017 General Manager, Business Division, Nihon Zairyo Giken Co., Ltd. Jun 2017 Director, the Company (current) Dec 2021 Adviser, Japan Investment Adviser Co., Ltd. (current) Apr 2022 Adviser, Nihon Zairyo Giken Co., Ltd.

Apr 1991 Joined Fukuda Metal Foil & Powder Co., Ltd. Jul 2016 Group Manager, PME Sales Group, Metal Powder Sales Department, Fukuda Metal Foil & Powder Co., Ltd. Jan 2023 General Manager, Metal Powder Sales Department, Fukuda Metal Foil & Powder Co., Ltd. Mar 2025 Director, General Manager, Metal Powder Sales Department, Fukuda Metal Foil & Powder Co., Ltd. (current) Jun 2025 Director, the Company (current)

Apr 1984 Joined the Company Apr 2012 Deputy General Manager, Accounting Department, and Manager, Accounting Section, the Company Oct 2016 General Manager, Accounting Department, and Manager, Accounting Section, the Company Apr 2018 General Manager, Accounting Department, the Company Jul 2019 Executive Officer and General Manager, Accounting Department, the Company Jun 2021 Director, Nitei Seiko (Shanghai) Trading Co., Ltd. Jun 2024 Supervisor, Nitei Seiko (Shanghai) Trading Co., Ltd. (current) Jun 2024 Audit and Supervisory Board Member, the Company (current) Jun 2024 Audit and Supervisory Board Member, Nihon Atomize Kako Co., Ltd. (current)

Apr 1982 Joined Maruzen Petrochemical Co., Ltd. Jul 2003 Leader, Finance Group, Accounting Department, Maruzen Petrochemical Co., Ltd. Jul 2006 General Manager, Purchasing Department, Maruzen Petrochemical Co., Ltd. Jul 2009 General Manager, Basic Chemicals Division 1, Basic Chemicals Unit, Maruzen Petrochemical Co., Ltd. Jul 2012 Representative Director, President, Maruzen Yuka Shoji Co., Ltd. Jul 2017 Executive Officer, General Manager, Finance Department, Cosmo Bio Co., Ltd. Apr 2019 Executive Officer in charge of Finance Department, Cosmo Bio Co., Ltd. Apr 2020 Executive Officer in charge of General Affairs Department, Cosmo Bio Co., Ltd. Apr 2021 Adviser, Human Resources Unit, General Affairs Department, Cosmo Bio Co., Ltd. Jun 2023 Audit and Supervisory Board Member, the Company (current)

Apr 1992 Joined Nissho Iwai Corporation (now Sojitz Corporation) Feb 2010 Manager, Fine Chemicals Section, Fine and Functional Materials Department, Sojitz Corporation Apr 2012 Manager, First Development Section, Life Science Business Development Office, Sojitz Corporation Apr 2014 Manager, Planning Section, Planning and Operations Office, Chemicals Division, Sojitz Corporation Aug 2017 General Manager, Asia and Oceania Regional Headquarters, Sojitz Asia Co., Ltd. Feb 2019 General Manager, Asia Chemicals Department, Sojitz Asia Co., Ltd. May 2021 Assistant General Manager, Environment and Life Science Department, Chemicals Division, Sojitz Corporation Apr 2024 Deputy Head, Planning and Operations Office, Chemicals Division, Sojitz Corporation (current) Jun 2025 Audit and Supervisory Board Member, the Company (current)

Apr 1991 Registered as attorney-at-law with the Tokyo Bar Association; joined Miyakezaka Law Office Jun 1998 Joined Shinjuku Nishiguchi Law Office (current) Apr 2011 Auditor, Japan Federation of Bar Associations Apr 2016 Vice President, Tokyo Bar Association May 2017 Auditor, Tokyo Bar Cooperative Apr 2018 Deputy Director, Tokyo District Office, Japan Legal Support Center Oct 2019 Member, Tokyo Family Court Committee Mar 2020 Outside Audit & Supervisory Board Member, Tachikawa Blind Manufacturing Co., Ltd. (current) Apr 2021 Executive Director, Japan Federation of Bar Associations Jun 2022 Representative Director, Vice Chair, Japan Council for Quality Health Care Apr 2024 Director, Tokyo District Office, Japan Legal Support Center (current) Jun 2025 Audit and Supervisory Board Member, the Company (current)