Jan 1975 Director, Mitani Sangyo Co., Ltd. Feb 1981 Vice President, Mitani Sangyo Co., Ltd. Jan 1982 Director, the Company Feb 1988 President and Representative Director, Mitani Oil Service Co., Ltd. (now Mitani Service Engine Co., Ltd.) Jun 1990 President and Representative Director, Mitani Sangyo Co., Ltd. Jun 2007 Chairman and Representative Director, Mitani Sangyo Co., Ltd. Apr 2012 Chairman of the Board and Director, the Company (current) Jun 2012 Chairman and Representative Director, Mitani Service Engine Co., Ltd. (current) Nov 2015 Chairman of the Board and Director, concurrently President and Representative Director, the Company Jan 2016 General Manager, Internal Audit Office, the Company Jun 2017 Chairman and Director, Mitani Sangyo Co., Ltd. Jun 2022 Special Advisor, Mitani Sangyo Co., Ltd. (current)

Feb 1984 Representative Director, President, Hokuto Daiko Sha Co., Ltd. (now Athena Co., Ltd.) (current) May 2010 Representative Director, Mitani Ikueikai Foundation (now Mitani Ikueikai Public Interest Foundation) (current) Representative Director, Mitani Research and Development Support Foundation (now Mitani Research and Development Support Public Interest Foundation) (current) Jun 2011 Director, the Company Jun 2012 In charge of Marketing Department, Ceramics Business Division, the Company Aug 2012 General Manager, Corporate Strategy Division (now Brand Strategy Headquarters), concurrently Manager, Marketing Office, the Company May 2013 Director, N&I ASIA PTE LTD (current) Jun 2013 In charge of NIKKO CERAMICS, INC. Jun 2014 Chairman and Director, NIKKO CERAMICS, INC. (current) Jun 2014 Managing Director, the Company Jun 2016 Representative Director, President, the Company Jun 2016 General Manager, Internal Audit Office, the Company Sep 2018 General Manager, Ceramics Business Division, the Company Apr 2023 Representative Director, President, concurrently General Manager, Brand Strategy Headquarters, the Company Apr 2025 Representative Director, President, the Company (current)

Apr 2012 Joined Hirano Design Sekkei Co., Ltd. Dec 2013 Resigned from Hirano Design Sekkei Co., Ltd. Feb 2014 Joined the Company Jun 2015 Director, General Manager, Human Resources Headquarters (now Human Capital Development Headquarters), the Company Jun 2017 Managing Director, General Manager, Human Resources Headquarters (now Human Capital Development Headquarters), the Company Aug 2017 General Manager, Bankchture Business Division, the Company May 2019 Director, Mitani Ikueikai Public Interest Foundation (current) Jun 2019 Director, NIKKO CERAMICS, INC. (current) Jun 2023 Senior Managing Director, General Manager, Human Resources Headquarters (now Human Capital Development Headquarters), the Company Jun 2023 Outside Director, Tesera Co., Ltd. (current) Apr 2025 Senior Managing Director, the Company (current)

Mar 1995 Joined the Company Sep 2006 Deputy Manager, Manufacturing Department, Electronic Ceramics Division (now Functional Ceramic Products Division), the Company Sep 2008 Seconded to Mitani Sangyo Co., Ltd. (Factory Manager, AUREOLE BUSINESS COMPONENTS & DEVICES INC.) Apr 2011 Acting Deputy Manager, Sales Department, Electronic Ceramics Division (now Functional Ceramic Products Division), the Company Jul 2011 Deputy Manager, Sales Department, Electronic Ceramics Division (now Functional Ceramic Products Division), the Company Oct 2012 Manager, Sales Department, Electronic Ceramics Division (now Functional Ceramic Products Division), the Company Jan 2014 Deputy General Manager, Functional Ceramic Products Division, concurrently Manager, Sales Department, the Company Jun 2015 Executive Officer, General Manager, Functional Ceramic Products Division, concurrently Manager, Sales Department, the Company Jun 2017 Director, General Manager, Functional Ceramic Products Division, concurrently Manager, Sales Department, the Company Apr 2018 Director, General Manager, Functional Ceramic Products Division, the Company Jun 2023 Managing Director, General Manager, Functional Ceramic Products Division, the Company (current) Jun 2025 Representative Director, President, Nikko Logistics Co., Ltd. (current)

Feb 2000 Joined Mitani Sangyo Co., Ltd. Apr 2018 Executive Officer, General Manager, Information Systems Business Division, Mitani Sangyo Co., Ltd. Apr 2021 Executive Officer, Mitani Sangyo Co., Ltd.; Executive Officer, General Manager, Ceramics Business Division, the Company Jun 2022 Senior Executive Officer, General Manager, Ceramics Business Division, the Company Jun 2023 Director, Mitani Sangyo Co., Ltd. Jun 2023 Outside Director, Tesera Co., Ltd. (current) Jun 2023 Director, General Manager, Ceramics Business Division, the Company Apr 2024 Managing Director, the Company Jun 2024 Managing Director, in charge of Sales, the Company (current) Jun 2026 Managing Director, Mitani Sangyo Co., Ltd. (current)

Apr 1987 Joined the Company Dec 2007 General Manager, Septic Tank Sales Division, Housing and Environmental Equipment Business Division, the Company Jan 2008 Executive Officer, General Manager, Septic Tank Sales Division, Housing and Environmental Equipment Business Division, the Company Apr 2012 Executive Officer, Deputy General Manager, Housing and Environmental Equipment Business Division, concurrently General Manager, Septic Tank Sales Division, the Company Nov 2012 Executive Officer, General Manager, Housing and Environmental Equipment Business Division, the Company Feb 2014 Executive Officer, General Manager, Housing and Environmental Equipment Business Division, concurrently General Manager, Environmental Energy Equipment Department, the Company Apr 2015 Executive Officer, General Manager, Housing and Environmental Equipment Business Division, concurrently Manager, Septic Tank Sales Division No. 2 and General Manager, Environmental Energy Equipment Department, the Company Jun 2015 Executive Officer, General Manager, Water Creation Business Division, concurrently Manager, Septic Tank Sales Division No. 2 and General Manager, Environmental Energy Equipment Department, the Company Jul 2016 Executive Officer, General Manager, Water Creation Business Division, concurrently Manager, Septic Tank Sales Division No. 2, General Manager, Environmental Energy Equipment Department, and General Manager, Maintenance and Inspection Management Department, the Company Sep 2016 Executive Officer, General Manager, Water Creation Business Division, concurrently Manager, Septic Tank Sales Division No. 2, General Manager, Wide-Area Septic Tank Sales Department, General Manager, Environmental Energy Equipment Department, and General Manager, Maintenance and Inspection Management Department, the Company Jun 2017 Director, General Manager, Water Creation Business Division, concurrently Manager, Septic Tank Sales Division No. 2, General Manager, Wide-Area Septic Tank Sales Department, General Manager, Environmental Energy Equipment Department, and General Manager, Maintenance and Inspection Management Department, the Company Apr 2019 Director, General Manager, Water Creation Business Division, the Company Oct 2025 Director, in charge of Purchasing, concurrently in charge of Housing and Environmental Equipment Business, the Company (current)

Apr 1992 Joined Hokuriku Bank, Ltd. Apr 2019 Area Chief Branch Manager, Sagawa Central Area, concurrently Branch Manager, Sagawa Central Branch and Masuizumi Branch, Hokuriku Bank, Ltd. Apr 2021 Seconded from Hokuriku Bank, Ltd. to the Company; Department Manager, Service Headquarters, the Company Sep 2021 Department Manager, Office of the President, assigned to special projects, the Company Jan 2022 Manager, Corporate Planning Department, Service Headquarters, concurrently Deputy Manager, Corporate Value Office, the Company Jul 2023 Executive Officer, General Manager, Corporate Value Headquarters, concurrently Manager, Corporate Value Office, the Company Sep 2023 Joined the Company Jun 2025 Director, General Manager, Corporate Value Headquarters, concurrently Manager, Corporate Value Office, the Company (current)

Apr 1999 Associate Professor, Faculty of Environment and Information Studies, Musashi Institute of Technology (now Tokyo City University) Apr 2003 Associate Professor, Faculty of Economics, Keio University Apr 2007 Member, Graduate School of Economics, Keio University (current) Apr 2008 Professor, Faculty of Economics, Keio University (current) Apr 2012 Deputy Director, Global Security Research Institute, Keio University Aug 2014 Member, Policy Commentator Committee, Council on Economic and Fiscal Policy, Cabinet Office Jun 2015 Director, the Company (current) Apr 2017 Policy Commentator, Council on Economic and Fiscal Policy, Cabinet Office; Senior Research Fellow, Global Research Institute, Keio University (current)

Apr 1977 Joined Mitsui & Co., Ltd. Jul 1989 Deputy Office Manager, Guangzhou Office, China, Mitsui & Co., Ltd. Oct 1995 Director, Mitsui & Co. (Deutschland) GmbH; General Manager, Plastics Department, Head Office, concurrently Office Manager, Munich Office Aug 1998 Managing Director, AK&M Trading Co., Ltd., Hong Kong Jul 2002 Vice President and Director, New Material Service Co., Ltd. Jun 2013 Resigned from Mitsui & Co., Ltd. Jul 2013 Representative Executive Officer and COO, Director, GNI Group Ltd. Apr 2015 Advisor, GNI Group Ltd. Jun 2015 Corporate Auditor, the Company (current) Jul 2015 Full-time Corporate Auditor, VALUENEX Inc. (current) Aug 2017 Corporate Auditor, Qualipus Co., Ltd. May 2020 Corporate Auditor, Touchence Inc. Jan 2021 Director, FUTAEDA Inc. Nov 2021 Corporate Auditor, Bacchus Bio Innovation Inc. Jun 2022 Corporate Auditor, PhotoQ3 Inc. (current)

Apr 1991 Joined Mitani Sangyo Co., Ltd. Apr 2019 Executive Officer, General Manager, M&E Business Division, Mitani Sangyo Co., Ltd. Apr 2024 Executive Officer, Mitani Sangyo Co., Ltd. (current); Executive Officer, General Manager, Ceramics Business Division, the Company Jun 2025 Director, NIKKO CERAMICS, INC. (current) Jun 2026 Director, General Manager, Ceramics Business Division, the Company (current)

Apr 2007 Joined Recruit Agent Co., Ltd. Jun 2009 Director, RIA Co., Ltd. Jul 2013 Established Neural Co., Ltd.; Co-Representative Director Dec 2015 Established Hatch Inc.; Representative Director (current) Nov 2023 Advisor, Japan Sustainable Restaurant Association (current) Apr 2024 Member, SFC Research Institute, Keio University (current) Jun 2024 Advisor, Saitama Prefecture Circular Economy Promotion Subcommittee (current) Apr 2025 Special Associate Professor, Shizenkan University Graduate School (current) Jun 2025 Director of the Company (current)

May 1993 Resident Physician, University of Tsukuba Hospital (now National University Corporation University of Tsukuba Hospital) Sep 1996 Researcher, New Energy and Industrial Technology Development Organization (now National Research and Development Agency New Energy and Industrial Technology Development Organization) Nov 1999 Physician, Radiology Department, Hitachi General Hospital, Hitachi, Ltd. Jul 2003 Chief, Radiology Department, Tsukuba Central Hospital (now Social Medical Corporation Wakatake-kai Tsukuba Central Hospital) Nov 2008 62nd Legal Training and Research Institute Trainee Jan 2010 Registered as Attorney-at-Law; Project Associate Professor, Kanazawa University Hospital, Deputy Manager, Management Planning Department (Legal Affairs) Jul 2015 Toranomon Hospital, Medical Safety Department, National Federation of Mutual Aid Associations of Public Servants Sep 2015 Outside Director, Medias Holdings Co., Ltd. Jul 2016 Chief, Medical Quality and Safety Office, Toranomon Hospital, National Federation of Mutual Aid Associations of Public Servants Aug 2018 Visiting Professor, Toin Yokohama Law School Sep 2019 Part-time Lecturer, Kanazawa University Law School (current) Dec 2021 Joined Atsumi & Sakai Foreign Law Joint Enterprise Nov 2022 Director, Japan Society of Medical Law (current); Outside Director, Guppy's Inc. Jan 2023 Member, Steering Committee, Ibaraki Prefectural University of Health Sciences (current) Sep 2023 Outside Director (Audit and Supervisory Committee Member), Medias Holdings Co., Ltd. Feb 2024 Partner, Atsumi & Sakai Foreign Law Joint Enterprise (current) Jun 2026 Director, the Company (current)

Apr 1983 Joined Taisho Marine & Fire Insurance Co., Ltd. (now Mitsui Sumitomo Insurance Co., Ltd.) Apr 2006 Deputy Manager, Financial Guarantee Group, Financial Solutions Department, Mitsui Sumitomo Insurance Co., Ltd. Apr 2014 Deputy Manager, Personal Financial Services Department, Mitsui Sumitomo Insurance Co., Ltd. Apr 2016 Seconded to MS&AD Loan Service Co., Ltd.; General Manager, Residential and Apartment Guarantee Department Apr 2017 General Manager, Guarantee Management Department, Mitsui Sumitomo Insurance Co., Ltd. Apr 2019 General Manager, Sales Administration Department, Mitsui Sumitomo Insurance Co., Ltd. May 2019 Resigned from Mitsui Sumitomo Insurance Co., Ltd. Jun 2019 Joined the Company; Department Manager, Office of the President; Full-time Corporate Auditor, the Company (current) Corporate Auditor, Nikko Logistics Co., Ltd. (current)

Apr 1997 Registered as Attorney-at-Law; joined Torikai, Tada & Moriyama Law Office (now Torikai Sogo Law Office) Jan 2005 Partner, Torikai Sogo Law Office (current) Jun 2015 Outside Corporate Auditor, Mos Food Services, Inc.; Corporate Auditor, the Company (current) Jun 2020 Outside Corporate Auditor, Yamaichi Electronics Co., Ltd. Jun 2022 Outside Director (Audit and Supervisory Committee Member), Yamaichi Electronics Co., Ltd. (current)

Apr 1982 Joined NEC Corporation Aug 1991 Joined McKinsey & Company, Inc. (USA) Oct 1992 General Manager, Human Resources and General Affairs Department, Uniden Corporation Aug 1994 General Manager, Human Resources and General Affairs Division, Apple Computer, Inc. Japan; Director in charge of Human Resources, Apple Computer, Inc. (USA) May 2010 Representative Member, THS Management Organization Laboratory LLC (current) Jun 2015 Outside Director, Discircle Inc. (current) Apr 2016 Visiting Professor, Graduate School of Science and Technology, Keio University Jun 2017 Outside Director, Fukuoka Financial Group, Inc.; Non-executive Director, The Bank of Fukuoka, Ltd.; Outside Director, ESPEC Corp. Apr 2021 Visiting Professor, Graduate School of Management, Business Breakthrough University (current) Jun 2023 Corporate Auditor, the Company (current)