Apr 1984 Joined the Company Oct 2014 Executive Officer, General Manager of Ube Development Center, the Company Jun 2017 Director, Managing Executive Officer, General Manager of Production Division, and General Manager of Ube Development Center and Ube West Plant, the Company Mar 2018 Director, Senior Managing Executive Officer (in charge of Technology), the Company Jun 2019 Representative Director, President and Executive Officer, the Company (current) Jun 2019 Vice Chairman, Shandong Sansheng Titanium Industry Co., Ltd. (resigned Dec 2023) Jul 2019 Representative Director, President, TBM Co., Ltd. (resigned Jun 2022)

Apr 1984 Joined the Company Oct 2014 Executive Officer, General Manager of Sales Department, the Company Jun 2016 Director, General Manager of Sales Division and General Manager of Sales Department, the Company Jun 2017 Director, Managing Executive Officer, General Manager of Sales Division and General Manager of Sales Department, the Company Mar 2018 Director, Managing Executive Officer (in charge of Sales), the Company Jun 2019 Director, Senior Managing Executive Officer (in charge of Sales) and General Manager of Sales Department, the Company (current)

Apr 1985 Joined the Company Oct 2015 Executive Officer, General Manager of R&D Department, the Company Jun 2017 Director, Managing Executive Officer, General Manager of R&D Division, the Company Mar 2018 Director, Managing Executive Officer (in charge of R&D and Production), the Company Jun 2019 Director, Senior Managing Executive Officer (in charge of Technology), the Company (current) Jun 2022 Representative Director, President, TBM Co., Ltd. (current) May 2023 Director and Deputy General Manager, Shandong Sansheng Titanium Industry Co., Ltd. (resigned Dec 2023)

Apr 1988 Joined the Company Mar 2013 Deputy General Manager, General Affairs Department, the Company Jun 2016 Executive Officer, General Manager of Finance & Corporate Planning Department, the Company Jun 2019 Director, Managing Executive Officer (in charge of Finance & Corporate Planning) and General Manager of Finance & Corporate Planning Department, the Company Mar 2022 Director, Managing Executive Officer (in charge of Corporate Planning and Accounting & Finance) and General Manager of Corporate Planning Department, the Company Jun 2024 Director, Managing Executive Officer (in charge of Corporate Planning, Accounting & Finance, and Purchasing & Logistics) and General Manager of Corporate Planning Department, the Company (current)

Apr 1991 Joined the Company Mar 2015 Deputy General Manager, General Affairs Department, the Company Jun 2016 General Manager of Internal Audit Office and Deputy General Manager of General Affairs Department, the Company Mar 2017 General Manager of General Affairs Department and General Manager of Internal Audit Office, the Company Jun 2017 Executive Officer, General Manager of General Affairs Department and General Manager of Internal Audit Office, the Company Jun 2019 Director, Managing Executive Officer (in charge of General Affairs, Environment & Safety), General Manager of General Affairs Department and Head of Internal Audit Office, the Company (current) Oct 2019 Director, TBM Co., Ltd. (current)

Apr 1982 Joined the Company Mar 2015 General Manager of Purchasing & Logistics Department, the Company Jun 2017 Executive Officer, General Manager of Purchasing & Logistics Department, the Company Mar 2018 Managing Executive Officer (in charge of Purchasing & Quality) and General Manager of Purchasing & Logistics Department, the Company Jun 2018 Director, Managing Executive Officer (in charge of Purchasing & Quality) and General Manager of Purchasing & Logistics Department, the Company Jun 2019 Managing Executive Officer (in charge of Purchasing) and General Manager of Purchasing & Logistics Department, the Company Mar 2022 Managing Executive Officer (in charge of Purchasing & Logistics) and General Manager of Purchasing & Logistics Department, the Company Jun 2024 Auditor, TBM Co., Ltd. (current) Jun 2024 Director (Full-time Audit and Supervisory Committee Member), the Company (current)

Dec 2010 Registered as attorney (Yamaguchi Bar Association); opened Sato Hisanori Law Office (now Ube-Sanyo-Onoda General Law Office), Representative (current) May 2018 Person to perform the duties of a Director who is an Audit and Supervisory Committee Member (temporary), the Company Jun 2018 Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1981 Joined Hiroshima Regional Taxation Bureau Jul 2014 Section Chief, General Affairs Section, Shimonoseki Tax Office Jul 2015 Tax Examiner, Hiroshima Regional Tax Appeals Tribunal Jul 2018 Tax Consultant, General Affairs Department, Hiroshima Regional Taxation Bureau Aug 2020 Registered Certified Tax Accountant; affiliated with Matsuno Kazuo Tax Accountant Office Jun 2021 Director (Audit and Supervisory Committee Member), the Company (current) Jan 2024 Affiliated Certified Tax Accountant, Nomura Yoshio Tax Accountant Office (current)