April 1984	Joined the Company
July 2010	Corporate Planning Dept.
May 2012	Administration Dept., Sierra Gorda Project Dept.
June 2013	Executive Officer Senior Deputy General Manager of Non-Ferrous Metals Div.
June 2014	Director General Manager of Corporate Planning Dept.
June 2015	General Manager of Non-Ferrous Metals Div.
June 2016	Managing Executive Officer
June 2018	President and Representative Director
June 2024	Chairman and Representative Director (Present Position)

April 1987	Joined the Company
April 2008	General Manager of Niihama Nickel Refinery, Non-Ferrous Metals Div.
July 2013	Administration Dept., Non-Ferrous Metals Div.
June 2014	General Manager of Administration Dept., Non-Ferrous Metals Div.
June 2016	Executive Officer Senior Deputy General Manager of Non-Ferrous Metals Div.
June 2018	General Manager of Non-Ferrous Metals Div.
June 2019	Director
June 2020	Managing Executive Officer
June 2022	Senior Managing Executive Officer
June 2024	President and Representative Director (Present Position)

April 1990	Joined the Company
June 2016	General Manager of Harima Refinery, Non-Ferrous Metals Div.
July 2017	General Manager of Toyo Smelter & Refinery, Non-Ferrous Metals Div.
June 2020	Executive Officer
January 2021	Senior Deputy General Manager of Non-Ferrous Metals Div.
June 2023	Director (Present Position) Managing Executive Officer (Present Position) General Manager of Non-Ferrous Metals Div. (Present Position)

April 1986	Registered as a lawyer Joined Ryoichi Wada Law Firm
March 1992	Established Ohta & Ishii Law Firm
June 2018	Director of the Company (Present Position)

April 1978	Joined NEC Corporation
April 2006	Executive General Manager, Distribution and Service Industries Solutions Operations Unit of NEC Corporation
April 2008	Associate Senior Vice President of NEC Corporation
April 2010	Senior Vice President of NEC Corporation
June 2010	Director of NEC Corporation
April 2016	Senior Executive Vice President of NEC Corporation
April 2018	Senior Officer of NEC Corporation
June 2020	Director of the Company (Present Position)
June 2021	Retired as Senior Officer of NEC Corporation

April 1970	Joined Ajinomoto Co., Inc.
July 1988	Head of Central Research Center of Ajinomoto Co., Inc.
July 1993	Head of Development Planning Dept. of Ajinomoto Co., Inc.
October 1993	Member of the Board; General Manager, Electronic Materials Division of Ajinomoto Fine-Techno Co., Inc.
June 2002	Member of the Board and Senior Managing Director; General Manager, Electronic Materials Division of Ajinomoto Fine-Techno Co., Inc.
June 2004	Member of the Board and Vice President of Ajinomoto Fine-Techno Co., Inc.
July 2008	Chief Director of Ajinomoto Co., Inc.
June 2009	Retired as Chief Director of Ajinomoto Co., Inc.
June 2012	Advisor of Ajinomoto Fine-Techno Co., Inc.
June 2014	Retired as Advisor of Ajinomoto Fine-Techno Co., Inc.
June 2024	Director of the Company (Present Position)

April 1987	Joined Orr Shotliff Accounting Firm
February 1991	Joined Ernst & Young London Office
May 1991	Registered as an ICAEW-qualified chartered accountant (UK)
July 2002	Joined ShinNihon Audit Firm (current Ernst & Young ShinNihon LLC)
July 2003	Partner of ShinNihon Audit Firm (Present Position)
March 2017	Representative in Japan of Ernst & Young Global Limited IFRS Policy Committee (Present Position)
June 2025	Director of the Company (Present Position)

April 1988	Joined the Company
July 2015	Public Relations & Investor Relations Dept.
April 2018	Finance & Accounting Dept.
June 2022	Audit & Supervisory Board Member (Standing)
June 2025	Senior Audit & Supervisory Board Member (Standing) (Present Position)

April 1988	Joined the Company
July 2019	General Manager of Legal Dept.
June 2023	Executive Officer General Manager of Besshi-Niihama District Div.
June 2025	Audit & Supervisory Board Member (Standing) (Present Position)

September 1983	Joined Ota Tetsuzo Audit Firm (current Ernst & Young ShinNihon LLC)
March 1987	Registered as a certified public accountant
July 2003	Partner of ShinNihon Audit Firm (current Ernst & Young ShinNihon LLC)
May 2006	Board Member of ShinNihon Audit Firm
August 2008	Managing Partner of ShinNihon LLC (current Ernst & Young ShinNihon LLC)
August 2010	Senior Partner of ShinNihon LLC
June 2016	Left ShinNihon LLC Established Wakamatsu Certified Public Accountant Firm
September 2019	Registered as a certified public tax accountant
June 2021	Audit & Supervisory Board Member of the Company (Present Position)

April 1982	Joined Export-Import Bank of Japan
October 2008	Head of Credit Department of Japan Bank for International Cooperation, Japan Finance Corporation
January 2011	Head of Corporate Management Office of Japan Bank for International Cooperation, Japan Finance Corporation
April 2012	Western Japan Representative of Japan Bank for International Cooperation
December 2013	Executive Officer, Western Japan Representative of Japan Bank for International Cooperation
June 2015	Retired as Executive Officer of Japan Bank for International Cooperation
July 2015	Retired from Japan Bank for International Cooperation
August 2015	Advisor of Nomura Securities Co., Ltd.
June 2017	Retired as Advisor of Nomura Securities Co., Ltd. Executive Managing Director, CEO of JBIC IG Partners
June 2023	Retired as Executive Managing Director, CEO of JBIC IG Partners
June 2024	Audit & Supervisory Board Member of the Company (Present Position)

Nobuhiro Matsumoto ^(*)	President
Hiroshi Yoshida ^(*)	Managing Executive Officer	General Manager of Corporate Planning Dept. In charge of Legal Dept., Digital Transformation Dept. and Internal Audit Dept.
Masaru Takebayashi ^(*)	Managing Executive Officer	General Manager of Non-Ferrous Metals Div.
Hideyuki Okamoto	Managing Executive Officer	General Manager of Mineral Resources Div.
Toru Motoki	Managing Executive Officer	General Manager of Technology Div.
Shinichi Sato	Managing Executive Officer	General Manager of Advanced Materials Div.
Munekazu Kawata	Executive Officer	General Manager of Battery Materials Div.
Yusuke Niwa	Executive Officer	Senior Deputy General Manager of Battery Materials Div.
Kazuaki Sakamoto	Executive Officer	General Manager of Engineering Div.
Yasumasa Hattori	Executive Officer	Senior Deputy General Manager of Non-Ferrous Metals Div.
Yoshihiro Sagawa	Executive Officer	Senior Deputy General Manager of Mineral Resources Div.
Mihoko Yano	Executive Officer	General Manager of Human Resources Dept. In charge of Secretarial Dept., Purchasing Dept. and Information Systems Dept.
Takahiro Hagiwara	Executive Officer	General Manager of Sustainability Dept. In charge of General Affairs Dept., Public Relations & Investor Relations Dept. and Osaka Branch
Toru Kitazaki	Executive Officer	Senior Deputy General Manager of Technology Div.
Kenji Hara	Executive Officer	Senior Deputy General Manager of Engineering Div.
Yukinori Okano	Executive Officer	Senior Deputy General Manager of Battery Materials Div.
Satoru Nishihara	Executive Officer	General Manager of Besshi-Niihama District Div.
Kazunori Kawanaka	Executive Officer	General Manager of Safety & Environment Control Dept. In charge of Quality Assurance Dept.
Yasuhiro Miyake	Executive Officer	General Manager of Finance & Accounting Dept.
Kenichi Tsuda	Executive Officer	Senior Deputy General Manager of Mineral Resources Div.

Corporate Officers

Directors

Audit & Supervisory Board Members

Executive Officers