Apr 1981 Joined the Company Jun 2010 General Manager, Organic Chemicals Division, Natural Gas-Based Chemicals Company Jun 2012 Executive Officer; General Manager, Organic Chemicals Division, Natural Gas-Based Chemicals Company Jun 2014 Executive Officer; General Manager, Specialty Chemicals Division, Natural Gas-Based Chemicals Company Apr 2015 Managing Executive Officer; in charge of LNG Business Study Project Team; President, Natural Gas-Based Chemicals Company Jun 2015 Director, Managing Executive Officer; in charge of LNG Business Study Project Team; President, Natural Gas-Based Chemicals Company Outside Director, Coop Chemical Co., Ltd. (now Katakura Corp Agri Co., Ltd.) (date not specified in filing) Apr 2018 Director, Managing Executive Officer; in charge of LNG Business Study Project Team; President, Natural Gas-Based Chemicals Company Apr 2019 Representative Director, President Apr 2025 Representative Director, Chairman (current)

Apr 1991 Joined the Company Apr 2019 Director, Tokyo Research Laboratory, Functional Chemicals Company Apr 2020 Executive Officer; Deputy General Manager, Business Planning Department, Business Planning Division Apr 2021 Executive Officer; in charge of Business Planning Apr 2023 Managing Executive Officer; in charge of Research Oversight and Intellectual Infrastructure Jun 2023 Director, Managing Executive Officer; in charge of Research Oversight and Intellectual Infrastructure Apr 2025 Representative Director, President (current)

Apr 1986 Joined the Company Jun 2014 President, Mitsubishi Gas Chemical America, Inc. Apr 2018 General Manager, Organic Chemicals Division, Natural Gas-Based Chemicals Company Apr 2019 Executive Officer; General Manager, Organic Chemicals Division, Natural Gas-Based Chemicals Company Jun 2019 Executive Officer; General Manager, Business Planning Department Apr 2021 Managing Executive Officer; in charge of Compliance; oversight of Business Planning; in charge of Internal Audit Office, CSR and IR Jun 2021 Director, Managing Executive Officer; in charge of Compliance; oversight of Business Planning; in charge of Internal Audit Office, CSR and IR Jun 2022 Director, Managing Executive Officer; in charge of Compliance; oversight of Business Planning; in charge of Internal Audit, CSR and IR Apr 2025 Director, Senior Managing Executive Officer; in charge of Internal Control and Risk Management; oversight of General Affairs and Human Resources, Finance and Accounting; in charge of CSR and IR (current)

Apr 1988 Joined the Company Apr 2015 General Manager, Planning and Development Department, Natural Gas-Based Chemicals Company Jun 2018 General Manager, Planning and Development Department, and General Manager, Life Science Department, Natural Gas-Based Chemicals Company Apr 2019 Executive Officer; Plant Manager, Mizushima Plant, Aromatic Chemicals Company Apr 2020 Executive Officer; Plant Manager, Mizushima Plant, Basic Chemicals Division Apr 2021 Executive Officer; in charge of Research Oversight Apr 2023 Managing Executive Officer; oversight of Production Technology; in charge of Environment, Safety and Quality Assurance Jun 2023 Director, Managing Executive Officer; oversight of Production Technology; in charge of Environment, Safety and Quality Assurance Apr 2024 Director, Managing Executive Officer; oversight of Production Technology; in charge of Environment, Safety, Quality Assurance, and Raw Material Logistics (current)

Apr 1989 Joined the Company Apr 2015 Sales Group Manager, Electronic Materials Division, Specialty Materials Company Apr 2019 General Manager, Electronic Materials Division, Specialty Materials Company Apr 2020 General Manager, Electronic Materials Division, Functional Chemicals Division Apr 2021 Executive Officer; General Manager, Electronic Materials Division, Functional Chemicals Division Apr 2025 Managing Executive Officer; oversight of Research; in charge of Intellectual Infrastructure Jun 2025 Director, Managing Executive Officer; oversight of Research; in charge of Intellectual Infrastructure Apr 2026 Director, Managing Executive Officer; in charge of Research Oversight and Intellectual Infrastructure (current)

Apr 1990 Joined the Company Jun 2012 General Manager, Administration Department, Specialty Materials Company Apr 2016 General Manager, Administration Department, Functional Chemicals Company Apr 2018 Group Manager, Accounting Group, Finance and Accounting Center Apr 2020 Group Manager, Accounting Group, Finance and Accounting Department, Corporate Management Division Apr 2021 Group Manager, Accounting Group, Finance and Accounting Department Apr 2022 Executive Officer; Group Manager, Accounting Group, Finance and Accounting Department Apr 2023 Executive Officer; in charge of Corporate Planning; General Manager, Corporate Planning Department Apr 2025 Managing Executive Officer; in charge of Compliance; oversight of Corporate Planning; in charge of Internal Audit and Information Systems Jun 2025 Director, Managing Executive Officer; in charge of Compliance; oversight of Corporate Planning; in charge of Internal Audit and Information Systems (current)

Apr 1979 Joined Hitachi, Ltd. Apr 2012 General Manager, Infrastructure Systems Sales Headquarters, Infrastructure Systems Group, Hitachi, Ltd. Apr 2013 Executive Officer; Kansai Branch Manager, Hitachi, Ltd. Jun 2013 Outside Audit & Supervisory Board Member, Shin-Meiwa Industry Co., Ltd. Apr 2016 Officer; Deputy General Manager, Sales Headquarters; in charge of Industry and Distribution, Water and Urban; CMO, Hitachi, Ltd. Apr 2017 Executive Director; Deputy General Manager, Sales Headquarters; in charge of Industry and Distribution, Water and Urban; CMO, Hitachi, Ltd. Apr 2021 Executive Advisor, Yashima Denki Co., Ltd. Jun 2021 Outside Director of the Company (current) Jun 2024 Outside Director, Nichias Corporation (current)

Oct 1992 Associate Professor, Department of Applied Physics, School of Engineering, Nagoya University Apr 1997 Professor, Institute for Chemical Reaction Science (now Institute of Multidisciplinary Research for Advanced Materials), Tohoku University Apr 2010 Professor, Advanced Institute for Materials Research and Professor, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University Apr 2016 Professor Emeritus, Tohoku University (current) Apr 2017 Professor, Center for Science and Technology Research, Tohoku University Dec 2020 Outside Director, Hamamatsu Photonics K.K. (current) Apr 2021 Research Professor, Tohoku University Jan 2022 Director, SMILEco Keisoku Co., Ltd. (current) Jun 2023 Outside Director of the Company (current) Apr 2025 Senior Research Fellow, Center for Science and Technology Research, Tohoku University (current)

Apr 1985 Joined the Company Jun 2011 General Manager, Niigata Plant, Natural Gas-Based Chemicals Company Jun 2014 Executive Officer; General Manager, Niigata Plant, Natural Gas-Based Chemicals Company Apr 2016 Executive Officer; President, Aromatic Chemicals Company Jun 2016 Director, JSP Corporation Apr 2017 Managing Executive Officer; President, Aromatic Chemicals Company Jun 2017 Director, Managing Executive Officer; President, Aromatic Chemicals Company Apr 2019 Director, Managing Executive Officer; in charge of Production Technology Department and Environment, Safety and Quality Assurance Department Jun 2019 Outside Director, Katakura Corp Agri Co., Ltd. Apr 2020 Director, Managing Executive Officer; in charge of Internal Audit Office and Environment and Production Division Apr 2021 Director, Managing Executive Officer; oversight of Production Technology; in charge of Environment, Safety, Quality Assurance, and Raw Material Logistics Apr 2022 Representative Director, Senior Managing Executive Officer; oversight of Production Technology; in charge of Environment, Safety, Quality Assurance, and Raw Material Logistics Apr 2023 Director Jun 2023 Full-time Audit & Supervisory Board Member (current)

Apr 1984 Joined the Company Jun 2012 General Manager, General Affairs and Human Resources Center Apr 2016 Executive Officer; General Manager, Electronic Materials Division, Specialty Materials Company Apr 2018 Managing Executive Officer; in charge of Finance and Accounting Center, Information Systems Department, and Raw Material Logistics Center Jun 2018 Director, Managing Executive Officer; in charge of Finance and Accounting Center, Information Systems Department, and Raw Material Logistics Center Apr 2019 Director, Managing Executive Officer; Chairman, Internal Control Promotion Committee; in charge of Compliance, Risk Management, Internal Audit Office, Business Planning Department, General Affairs and Human Resources Center, and Public Relations & IR Department; General Manager, Tokyo Techno Park Jun 2019 Director, Managing Executive Officer; in charge of Compliance, Risk Management, Finance and Accounting Center, Information Systems Department, General Affairs and Human Resources Center, and Public Relations & IR Department; General Manager, Tokyo Techno Park Apr 2020 Director, Managing Executive Officer; in charge of Internal Control and Risk Management; oversight of Corporate Management Division Apr 2021 Director, Managing Executive Officer; in charge of Internal Control and Risk Management; oversight of General Affairs and Human Resources, Finance and Accounting; in charge of Information Systems Apr 2022 Representative Director, Senior Managing Executive Officer; in charge of Internal Control and Risk Management; oversight of Finance and Accounting; in charge of General Affairs and Human Resources, Information Systems Apr 2023 Representative Director, Senior Managing Executive Officer; in charge of Internal Control and Risk Management, General Affairs and Human Resources, Finance and Accounting, Information Systems, and Raw Material Logistics Apr 2024 Representative Director, Senior Managing Executive Officer; in charge of Internal Control and Risk Management; oversight of General Affairs and Human Resources; in charge of Finance and Accounting and Information Systems Apr 2025 Director Jun 2025 Full-time Audit & Supervisory Board Member (current)

Jan 1981 Joined the Ministry of Foreign Affairs of Japan Jul 2004 Minister, Delegation of Japan to the European Union (Brussels) Jul 2007 Minister, Permanent Mission of Japan to International Organizations in Geneva Aug 2010 Deputy Director-General, Treaties Bureau (formerly Treaties Bureau), Ministry of Foreign Affairs of Japan Sep 2012 Senior Deputy Director-General, Ministry of Foreign Affairs of Japan Jun 2013 Press Secretary for Foreign Affairs, Ministry of Foreign Affairs of Japan Feb 2015 Ambassador Extraordinary and Plenipotentiary, Permanent Delegation of Japan to UNESCO Oct 2017 Ambassador Extraordinary and Plenipotentiary to Hungary Apr 2021 Senior Advisor to the Head Office, National Institutes for Cultural Heritage May 2021 Auditor, Foreign Press Center Japan (current) Feb 2022 Board Member, Ambassador, and Advisor to the Ministry of Foreign Affairs of Japan, Asia-Europe Foundation (ASEF) (current) May 2022 Board Member, United Nations University (current) Jun 2025 Outside Director of the Company (current)

Jun 1982 Joined Nissho Iwai American Corporation (now Sojitz America Corporation) May 1988 Joined Moody's Investors Service, Inc. May 2013 Senior Vice President, Moody's Investors Service, Inc. May 2017 Associate Managing Director, Moody's Japan K.K. Jan 2019 Director, Moody's Japan K.K. Apr 2023 Outside Director, Torii Pharmaceutical Co., Ltd. Oct 2023 Financial Consultant (sole proprietor) (current) Mar 2024 Outside Director (Audit and Supervisory Committee Member), Torii Pharmaceutical Co., Ltd. Jun 2025 Outside Director of the Company (current)

Apr 1988 Joined Toa Oil Co., Ltd. (now ENEOS Corporation) Mar 1989 Joined Nippon Digital Equipment Co., Ltd. Oct 1992 Joined Nissan Motor Mexico (contract employee) Feb 1997 Joined Tohmatsu & Co. (now Deloitte Tohmatsu Audit LLC) Dec 2007 Joined KPMG Business Assurance Co., Ltd. (now KPMG AZSA LLC) Jul 2011 Dispatched to JICA India Office Jun 2013 Joined Tohmatsu & Co. LLC Aug 2015 Joined Genpact Japan K.K. (now Genpact Japan K.K.), Senior Manager Jul 2017 Dispatched to JICA Panama Office Jan 2021 Joined Orix Corporation Dec 2023 Joined Leaflas Inc., Executive Officer Jun 2025 Outside Audit & Supervisory Board Member of the Company (current)

Apr 1983 Joined Nippon Life Insurance Company Mar 2010 Executive Officer; General Manager, Product Development Department Mar 2011 Executive Officer; Sendai Branch Manager; General Manager, Tohoku Corporate Department Mar 2013 Executive Officer; General Manager, Agency Sales Headquarters and Financial Institutions Headquarters Mar 2014 Managing Executive Officer; General Manager, Agency Sales Headquarters and Financial Institutions Headquarters Jul 2014 Director, Managing Executive Officer; General Manager, Agency Sales Headquarters and Financial Institutions Headquarters; in charge of Agency Operations, Agency Sales, Financial Institutions Operations, and Financial Institutions Headquarters Mar 2017 Director, Senior Managing Executive Officer; General Manager, Agency Sales Headquarters and Financial Institutions Headquarters; in charge of Agency Operations, Agency Sales, Financial Institutions Operations, and Financial Institutions Headquarters Mar 2018 Director, Nissay Basic Research Institute Apr 2018 Representative Director, President, Nissay Basic Research Institute (current) Jun 2018 Outside Audit & Supervisory Board Member, Nitta Corporation Jun 2021 Outside Audit & Supervisory Board Member, Keisei Electric Railway Co., Ltd. (current) Jun 2024 Outside Audit & Supervisory Board Member of the Company (current)