Apr 1966 Joined Nishimura Kogyo Co., Ltd. (currently Nikkato Corporation) Aug 1968 Audit & Supervisory Board Member of the Company Mar 1972 Joined the Company Mar 1976 General Manager, Sales Department Aug 1987 Representative Director, President Oct 2024 Representative Director, President and Head of Sales Division (current)

Apr 1991 Joined the Company Jul 2005 General Manager, R&D Department Oct 2007 Executive Officer; General Manager, Manufacturing Department and R&D Department Sep 2009 Director; General Manager, Tsukuba Plant, Plant Management Department and Quality Assurance Department Aug 2011 Director; General Manager, Tsukuba Plant; Head of Plant Management Office; General Manager, R&D Department and Quality Assurance Department Jul 2012 Director; General Manager, Tsukuba Plant, R&D Department and Quality Assurance Department Jan 2013 Director; General Manager, R&D Department Jul 2015 Director; General Manager, No. 1 R&D Department and No. 1 Manufacturing Department Jul 2017 Director; General Manager, Tsukuba Plant, Materials and Thin Film R&D Department, Thin Film Materials Manufacturing Department and Precious Metal Equipment Manufacturing Department Aug 2018 Director; General Manager, Tsukuba Plant, Materials and Thin Film R&D Department, Thin Film Materials Manufacturing Department, Precious Metal Equipment Manufacturing Department and Administration Department Feb 2019 Director; General Manager, Tsukuba Plant, Materials and Thin Film R&D Department and Tsukuba Manufacturing Department Oct 2019 Director; General Manager, Tsukuba Plant, Tsukuba Manufacturing Department and Materials and Thin Film R&D Department; General Manager, Tsuchiura Manufacturing Department, Tsuchiura Plant, Chemicals and Recovery Division Jul 2020 Director; General Manager, Tsukuba Plant, Tsukuba Administration Department, Tsukuba Manufacturing Department and Materials and Thin Film R&D Department Jul 2021 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant, Advanced Thermal Management Equipment Manufacturing Department and System Management Office Oct 2021 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant, Advanced Film Deposition Manufacturing Department, Advanced Thermal Management Equipment Manufacturing Department and System Management Office Mar 2022 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant, Advanced Film Deposition Manufacturing Department, Thin Film and Electronic Materials Manufacturing Department, Advanced Thermal Management Equipment Manufacturing Department and System Management Office May 2022 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant, Advanced Film Deposition Manufacturing Department, Thin Film and Electronic Materials Manufacturing Department and System Management Office Jul 2022 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant and Thin Film, Electronic Materials and Film Deposition Manufacturing Department Jan 2023 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant and Thin Film Electronic Materials Equipment Manufacturing Department May 2023 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant Apr 2024 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant, Technology Development Department and Head of Green Chemistry Technology Office Oct 2024 Director; Head of Manufacturing and R&D Division; General Manager, Tsukuba Plant and Production Technology Development Control Department (current)

Apr 1987 Joined Nissho Iwai Corporation (currently Sojitz Corporation) Apr 1997 Joined Engelhard Metals Japan Co., Ltd. (currently BASF Metals Japan Co., Ltd.) Apr 2005 President, same company Jul 2013 Joined the Company Sep 2013 Sales Manager, No. 2 Sales Department, Sales Division Jul 2014 General Manager, Product Sales Department Sep 2014 Executive Officer; General Manager, Product Sales Department Jul 2017 Executive Officer; General Manager, Sales Department Sep 2017 Director; General Manager, Sales Department Oct 2019 Director; General Manager, Sales Department and General Manager, Chemical Business Promotion Department, Chemicals and Recovery Division May 2020 Director, Furuya Eco-Front Technology Co., Ltd. (current) Jul 2021 Director; Head of Precious Metals and Resource Recycling Division; General Manager, Precious Metals Department and Resource Recycling Department Mar 2023 Director; Head of PGM Fine Chemicals and Recycling Division; General Manager, Tsuchiura Plant, Precious Metals Department and Resource Recycling Department Jul 2023 Director; Head of PGM Fine Chemicals and Recycling Division; General Manager, Tsuchiura Plant and Precious Metals Department Oct 2024 Director; Head of PGM Fine Chemicals and Recycling Division; General Manager, Precious Metals Department (current) Aug 2025 Director, Furuya Nonferrous Metals (Shanghai) Co., Ltd. (current)

Apr 1989 Joined The Mitsubishi Bank, Ltd. (currently MUFG Bank, Ltd.) Apr 2018 Seconded to the Company Jan 2019 Joined the Company Jan 2021 General Manager, General Affairs Department Oct 2021 Executive Officer; General Manager, General Affairs and CSR Department, Administration Division Jul 2022 Executive Officer; General Manager, General Affairs and CSR Department, Administration Division and Head of System Management Office Apr 2024 Executive Officer; General Manager, General Affairs and CSR Department, Administration Division and Head of System Management Office Sep 2024 Director; Administration Division; General Manager, General Affairs and CSR Department and Head of System Management Office (current)

Apr 1984 Joined Tanaka Massey Co., Ltd. (currently Tanaka Kikinzoku Kogyo K.K.) Apr 2007 Deputy General Manager, Shonan Plant, same company Apr 2009 General Manager, Ichikawa Plant, same company Apr 2011 Executive Officer, same company (title later changed to Managing Officer) May 2013 Executive Deputy General Manager, Chengdu Gongmingpai Special Precious Metal Co., Ltd. (China) Apr 2017 Managing Officer; General Manager, Development Management Department, New Business Company, Tanaka Kikinzoku Kogyo K.K. Oct 2019 Managing Officer, Tanaka Kikinzoku Kogyo K.K.; General Manager, Shonan Plant and Director, FC Catalyst Development Center Apr 2020 Executive Officer, Tanaka Kikinzoku Kogyo K.K. Apr 2021 Executive Officer and Vice President, Chemical Recovery Company; General Manager, Shonan Plant, Tanaka Kikinzoku Kogyo K.K. Apr 2022 Executive Officer and Vice President, Chemical Recovery Company, Tanaka Kikinzoku Kogyo K.K. Dec 2024 Director, Kojima Chemicals Co., Ltd. (current) Jan 2025 Adviser, Tanaka Kikinzoku Kogyo K.K. (current) Sep 2025 Director of the Company (current)

Apr 1986 Joined Nomura Research Institute, Ltd. Oct 1997 Director, Senior Analyst, Dresdner Kleinwort Benson Securities Co., Ltd. (currently Commerzbank Japan Ltd.) Apr 1999 Advisory Member, Semiconductor Industry Research Institute Japan (General Incorporated Association) Apr 2000 Managing Director, General Manager of Research Department and Chief Analyst, JPMorgan Securities Japan Co., Ltd. Dec 2001 Head of Research and Chief Analyst, Mizuho Securities Co., Ltd. Apr 2005 President and Fund Manager, PhiNoweb Investments Co., Ltd. Apr 2017 Professor, Graduate School of Innovation Management, Tokyo University of Science Apr 2018 Professor, Department of Management of Technology, Graduate School of Management, Tokyo University of Science; Head of Department Apr 2020 Research Fellow and Head of Division for Social Implementation of Technology Management and Financial Engineering Research, Tokyo University of Science Apr 2021 Chair, Policy Recommendation Task Force, Semiconductor Division, Japan Electronics and Information Technology Industries Association (JEITA) (current); Councilor, Tokyo University of Science Jan 2023 Vice President and Director, Society for Research Policy and Innovation (General Incorporated Association) Apr 2025 Distinguished Professor, Semiconductor and Digital Research and Education Organization, Kumamoto University (current); Visiting Professor, Graduate School of Management, Ritsumeikan University (current) Jun 2025 Outside Director, Audit and Supervisory Committee Member, V Technology Co., Ltd. (current) Aug 2025 Adviser, Next-Generation Edge AI Semiconductor R&D Program, Japan Science and Technology Agency (current) Sep 2025 Director of the Company (current)

Aug 1980 Joined the Company Jul 2002 General Manager, Tsukuba Plant and General Manager, Business Management Department Oct 2003 Executive Officer; General Manager, Tsukuba Plant and Head of Business Management Office Sep 2007 Director Apr 2010 Director; General Manager, Internal Audit Office and General Manager, Business Management Department Sep 2017 Audit & Supervisory Board Member of the Company Sep 2021 Full-time Director, Audit and Supervisory Committee Member (current)

Jul 1983 Treasury Official, Judgment Division, National Tax Tribunal, National Tax Agency Jul 2016 Director, Hongo Tax Office Jul 2018 Director, Midori Tax Office Aug 2019 Opened Keiko Matsubayashi Certified Tax Accountant Office Jun 2020 Audit & Supervisory Board Member, Mitsui Sumitomo Road Co., Ltd. Sep 2021 Outside Director, Audit and Supervisory Committee Member of the Company (current) Jun 2024 Outside Director, Audit and Supervisory Committee Member, Mitsui Sumitomo Road Co., Ltd. (current)

Dec 2002 Completed the Legal Training and Research Institute Dec 2002 Joined Tokyo Aoyama Aoki Law Office, Baker & McKenzie Foreign Law Joint Enterprise (currently Baker & McKenzie (Gaikokuho Kyodo Jigyo) Law Office) Jun 2007 Joined Tokyo Themis Law Office May 2008 Joined Field-R Law Office Aug 2009 Audit & Supervisory Board Member, Photo Create Co., Ltd. Jun 2010 Audit & Supervisory Board Member, Marvelous Inc. Jun 2011 Retired as Audit & Supervisory Board Member, Marvelous Inc. Jul 2012 Opened Nakachin Law Office (current) Mar 2019 Audit & Supervisory Board Member, Inagora Co., Ltd. (current) Sep 2025 Outside Director, Audit and Supervisory Committee Member of the Company (current)