Apr 1982 Joined the Company Apr 2008 General Manager, Large Castings Division Jun 2011 Executive Officer; General Manager, Tokyo Branch Jun 2015 Director of the Company Jun 2015 General Manager, Large Castings Division; in charge of Culture Reform Apr 2016 General Manager, Casting Division; in charge of Culture Reform Feb 2017 Representative Director of the Company Apr 2023 Representative Director; General Manager, Advanced Materials Division Apr 2024 Representative Director, President (current)

Apr 1984 Joined the Company Apr 2006 General Manager, Accounting Department Jun 2009 Executive Officer; General Manager, Accounting Department Jun 2011 Director of the Company Jun 2011 General Manager, Accounting Department and General Affairs Department; in charge of Personnel Department and Information Systems Group Jun 2013 General Manager, Accounting Department; in charge of General Affairs Department, Personnel Department and Information Systems Group Jun 2017 Managing Director of the Company Apr 2018 General Manager, Accounting Department; in charge of General Affairs Department, Personnel Department, Disaster Prevention Office, Environment and Safety Management Department and Information Systems Group Apr 2019 General Manager, Accounting Department; in charge of General Affairs Department, Personnel Department, Corporate Planning Department, Environment and Safety Management Department, Disaster Prevention Office and Information Systems Group Apr 2021 General Manager, Corporate Planning Department; in charge of Accounting Department, General Affairs Department, IT Promotion Department, Functional Materials Department and Development Department Jun 2024 Senior Managing Director of the Company (current) Jun 2024 General Manager, Corporate Planning Department; in charge of Overseas Business Division, Accounting Department, General Affairs Department, IT Promotion Department, Functional Materials Department and Development Department (current)

Nov 1988 Joined the Company Apr 2011 General Manager, Densuba Business Division Jan 2015 Executive Officer; General Manager, Densuba Business Division Apr 2019 Supervisor of Densuba Business Division, Functional Materials Department and Development Department Jun 2019 Director of the Company (current) Jun 2019 in charge of Densuba Business Division, Functional Materials Department and Development Department Apr 2021 in charge of Densuba Business Division, Personnel Department and Safety and Environment Management Department (current)

Apr 1990 Joined the Company Apr 2013 General Manager, Small Castings Division; Leader, West Block Sales Group Jan 2015 Executive Officer; General Manager, Small Castings Division Jun 2021 Director of the Company (current) Jun 2021 General Manager, Small Castings Division; in charge of Materials Department Apr 2023 General Manager, Small Castings Division and General Manager, Materials Department Oct 2023 General Manager, Small Castings Division; in charge of Materials Department Apr 2025 General Manager, Small Castings Division and General Manager, Materials Department Oct 2025 General Manager, Small Castings Division; in charge of Materials Department (current)

Apr 1981 Joined the Company Jul 2011 General Manager, Environmental Equipment Division; Leader, Design and Construction Group Apr 2019 Executive Officer; General Manager, Machinery Division and General Manager, Environmental Equipment Division Apr 2021 Executive Officer; General Manager, Environmental Engineering Division Jun 2022 Director of the Company (current) Jun 2022 General Manager, Environmental Engineering Division and Engineering Department of the Division; in charge of Technology Department and Solar Business Group Apr 2025 General Manager, Environmental Engineering Division and General Manager, Environmental Plant Department of the Division; in charge of Technology Department and Solar Business Group (current)

Apr 1990 Joined the Company Apr 2016 Executive Officer; General Manager, Large Castings Division and Leader, Sales Group Apr 2023 Executive Officer; Plant Manager, Large Castings Plant, Advanced Materials Division and General Manager, Sales Department of the Division Apr 2024 Executive Officer; General Manager, Advanced Materials Division; Plant Manager, Large Castings Plant and General Manager, Sales Department of the Division Jun 2024 Director of the Company (current) Jun 2024 General Manager, Advanced Materials Division; Plant Manager, Large Castings Plant and General Manager, Sales Department of the Division Apr 2025 General Manager, Advanced Materials Division and General Manager, Sales Department of the Division Apr 2026 General Manager, Advanced Materials Division (current)

Apr 1988 Joined Nippon Steel Corporation (now Nippon Steel Corporation) Oct 2012 Merged into Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation) Apr 2013 General Manager, Steelmaking Department, Oita Works; Senior Expert, Steelmaking Technology Department, Head Office Apr 2016 General Manager, Production Technology Department, Oita Works Apr 2018 Deputy Works Manager, Oita Works Apr 2019 Senior Expert, Overseas Business Planning Department, Global Business Promotion Headquarters, Nippon Steel Corporation (renamed) May 2020 Executive Officer (equivalent), Nippon Steel Logistics Co., Ltd.; Director and Vice President, Nippon Steel Logistics Kimitsu Co., Ltd. Apr 2021 Managing Executive Officer (equivalent), Nippon Steel Logistics Co., Ltd.; Representative Director and President, Nippon Steel Logistics Oita Co., Ltd. Apr 2023 Senior Adviser, Nippon Steel Logistics Oita Co., Ltd. Jun 2024 Director (Audit and Supervisory Committee Member) of the Company (current)

Nov 1976 Joined Taisei Kaikeisha Audit Corporation (now EY ShinNihon LLC) Apr 1980 Registered as Certified Public Accountant Jul 2005 Senior Partner, ShinNihon Audit Corporation (now EY ShinNihon LLC) Apr 2007 Specially Appointed Professor, Graduate School of Accounting, University of Hyogo Jun 2010 Retired from ShinNihon LLC Jul 2010 Opened Kōji Matsuyama Certified Public Accountant Office (current) Jun 2012 Outside Audit & Supervisory Board Member, Inabata & Co., Ltd. Jun 2015 Audit & Supervisory Board Member of the Company Jun 2019 Director (Audit and Supervisory Committee Member) of the Company (current)

Apr 1984 Joined Kobe Steel, Ltd. Apr 2010 Head of Titanium R&D Office, Titanium Division, Steel Business Unit Apr 2014 Chief Researcher, Titanium Division, Steel Business Unit (Takasago) Apr 2020 Chief Researcher, Titanium Unit, Advanced Materials Division Oct 2021 Titanium Unit, Advanced Materials Division Apr 2022 Titanium Unit, Advanced Materials Division (Takasago) Jun 2023 Director (Audit and Supervisory Committee Member) of the Company (current)