Directors Who are Not Audit and Supervisory Committee Members (as of April 1, 2025)

Representative Director & Chairman	Murayama Seiichi
President & Representative Director Chief Executive Officer	Hayashi Yoichi
Director Deputy Chief Executive Officer	Sugawara Shizuo	Assistant to the President (Technology) General Manager, Technology Group General Manager, Project Management Office
Director Deputy Chief Executive Officer	Ohuchi Yoshiaki	Assistant to the President (Specially Assigned Matters) In charge of Logistics Dept.
Outside Director	Tokoro Chiharu
Outside Director	Ito Motoshige

Directors Who are Audit and Supervisory Committee Members (as of April 1, 2025)

Director (Full-Time Audit and Supervisory Committee Member)	Kuroiwa Motohiro
Outside Director (Audit and Supervisory Committee Member)	Sakuma Soichiro
Outside Director (Audit and Supervisory Committee Member)	Futamiya Masaya
Outside Director (Audit and Supervisory Committee Member)	Kawaguchi Rika
Outside Director (Audit and Supervisory Committee Member)	Shiota Tomoo

Executive Officers (not serving concurrently as Directors) (as of April 1, 2025)

Senior Executive Officer	Yasuda Yutaka	General Manager, Resources & Metals Group Senior Executive Engineer, Technology Group
Senior Executive Officer	Nakamura Yuichiro	Deputy General Manager, Technology Group
Senior Executive Officer	Tani Akito	Senior Executive Engineer, Technology Group
Senior Executive Officer	Iida Kazuhiko	General Manager, Advanced Materials Group General Manager, Tantalum and Niobium Division, Advanced Materials Group Senior Executive Engineer, Planning & Coordination Dept. Senior Executive Engineer, Technology Group
Senior Executive Officer	Suwabe Takeshi	Deputy General Manager, Advanced Materials Group General Manager, Thin Film Materials Division, Advanced Materials Group General Manager, Marketing Dept., Thin Film Materials Division, Advanced Materials Group General Manager, Crystalline Material Business Promotion Dept, Advanced Materials Group Senior Executive Staff, Technology Group
Senior Executive Officer	Masaki Nobuharu	General Manager, Functional Materials Division, Advanced Materials Group Senior Executive Staff, Technology Group
Executive Officer	Ito Takashi	General Manager, Facilities Engineering Dept., Technology Group Deputy General Manager, Project Management Office General Manager, Engineering Group, Project Management Office
Executive Officer	Mizuguchi Tomoji	General Manager, Advanced Technology & Strategy Dept., Technology Group
Executive Officer	Aiba Akihiro	In charge of Environment & Safety Dept. Deputy General Manager, Technology Group General Manager, Technology Development Center Deputy General Manager, Project Management Office
Executive Officer	Ogura Yasushi	In charge of Accounting Dept. In charge of Internal Control Dept. General Manager, Accounting Dept.
Executive Officer	Togami Ichiro	General Manager, Metals & Recycling Division, Resources & Metals Group General Manager, Marketing Dept., Metals & Recycling Division, Resources & Metals Group Senior Executive Staff, Technology Group
Executive Officer	Kawaguchi Yoshiyuki	In charge of Planning & Coordination Dept. In charge of Corporate Communication Dept. In charge of Finance Dept. In charge of Administration Dept. In charge of Legal Dept. In charge of Human Resources Dept.
Executive Officer	Okabe Takeo	Deputy General Manager, Thin Film Materials Division, Advanced Materials Group Senior Executive Engineer, Advanced Technology & Strategy Dept., Technology Group