Directors (as of June 28, 2022)

President & Representative Director Chief Executive Officer	Seiichi Murayama
Director Deputy Chief Executive Officer	Kazuhiro Hori	Assistant to the President (Corporate) General Manager, Project Management Office
Director Deputy Chief Executive Officer	Shizuo Sugawara	Assistant to the President (Technology) General Manager, Technology Group Deputy General Manager, Project Management Office
Director Senior Executive Officer	Yoichi Hayashi	In charge of Planning & Coordination Dept. In charge of ESG Promotion Dept. In charge of Accounting Dept. In charge of Logistics Dept. Senior Executive Staff, Project Management Office
Outside Director	Motoshige Ito
Outside Director	Soichiro Sakuma
Outside Director	Chiharu Tokoro

Corporate Auditors (as of June 28, 2022)

Corporate Auditor	Takahiko Miura
Corporate Auditor	Katsuya Asazuma
Corporate Auditor (Non-executive)	Yoshiaki Ouchi	(Director (Full-Time Audit and Supervisory Committee Member), ENEOS Holdings, Inc.)

Executive Officers (not serving concurrently as Directors) (as of June 28, 2022)

Senior Executive Officer	Yutaka Yasuda	General Manager, Metals & Recycling Division Senior Executive Engineer, Technology Group
Senior Executive Officer	Manabu Hyakuno	General Manager, Functional Materials Division Senior Executive Staff, Technology Group
Senior Executive Officer	Yuichiro Nakamura	Deputy General Manager, Technology Group
Senior Executive Officer	Motohiro Kuroiwa	General Manager, Chile Office
Senior Executive Officer	Akito Tani	Senior Executive Engineer, Technology Group
Senior Executive Officer	Kazuhiko Iida	General Manager, Tantalum and Niobium Division General Manager, Administration Dept., Tantalum and Niobium Division Senior Executive Engineer, Technology Group
Executive Officer	Kan Komatsuzaki	In charge of Administration Dept. In charge of Legal Dept. In charge of Human Resources Dept. In charge of Environment & Safety Dept. General Manager, Administration Dept. General Manager, Risk Management Office Senior Executive Staff, Project Management Office
Executive Officer	Takashi Ito	General Manager, Facilities Engineering Dept., Technology Group General Manager, Engineering Group, Project Management Office
Executive Officer	Hiroshi Kimura	General Manager, Kurami Works
Executive Officer	Takeshi Suwabe	General Manager, Thin Film Materials Division Senior Executive Staff, Technology Group
Executive Officer	Nobuharu Masaki	General Manager, Mineral Resources Division Senior Executive Staff, Metals & Recycling Division Senior Executive Staff, Technology Group
Executive Officer	Hiroyuki Ebihara	General Manager, IT Dept., Technology Group Senior Executive Engineer, Administration Dept.
Executive Officer	Tomoji Mizuguchi	General Manager, Advanced Technology & Strategy Dept., Technology Group