Apr 1986 Joined the Company Mar 2014 General Manager, Kyoto Plant Operations Department Jun 2016 Director in charge of Production Division, Kyoto Plant Manager, General Manager, Kyoto Plant Operations Department Aug 2016 Director in charge of Production Division, Kyoto Plant Manager Nov 2016 Director, Kyoto Plant Manager May 2017 Managing Director, in charge of General Management, Kyoto Plant Manager Feb 2018 Managing Director, in charge of General Management May 2018 Representative Director, President (current)

May 1969 Joined the Company Mar 1993 General Manager, General Affairs Department Jun 1993 Director, General Manager, General Affairs Department Jun 1997 Managing Director, in charge of General Affairs and Accounting Departments Jun 1999 Senior Managing Director, in charge of Research Office, General Affairs and Accounting Departments Sep 2002 Senior Managing Director, in charge of Research, General Affairs and Accounting Divisions Jun 2005 Representative Director, President May 2018 Representative Director, Chairman Jun 2026 Director, Chairman of the Board (current)

Apr 1992 Joined Mitsubishi Corporation May 2019 Seconded from Mitsubishi Corporation to the Company Jun 2019 Executive Officer, General Manager, Electrode Unit, the Company Jun 2021 Resigned from Mitsubishi Corporation Jun 2021 Director, Executive Officer, General Manager, SK-B Unit and Electrode Unit Oct 2021 Director in charge of Sales and Administration Divisions; Executive Officer, General Manager, SK-B Unit, Electrode Unit and Head Office Unit Apr 2022 Director in charge of Sales, Raw Materials Procurement and Administration Divisions; Executive Officer, General Manager, Electrode Unit and Raw Materials Procurement Office Oct 2023 Director in charge of Sales, Raw Materials Procurement and Administration Divisions; Executive Officer, General Manager, Raw Materials Procurement Office Jun 2024 Director in charge of Sales and Raw Materials Procurement Divisions; Executive Officer, General Manager, Raw Materials Procurement Office Apr 2025 Director in charge of Kyoto Plant and Raw Materials Procurement Divisions; Executive Officer, Kyoto Plant Manager and General Manager, Raw Materials Procurement Office (current)

Apr 1992 Joined the Company Sep 2014 General Manager, Quality Assurance Office, Kyoto Plant Mar 2015 General Manager, Technical Department, Kyoto Plant Feb 2018 Executive Officer, Kyoto Plant Manager Jun 2021 Director, Executive Officer, Kyoto Plant Manager Oct 2021 Director in charge of Kyoto Plant, Executive Officer, Kyoto Plant Manager Apr 2025 Director in charge of Sales Division, Executive Officer (current)

May 2001 Joined the Company Jun 2008 General Manager, Legal Affairs Department Sep 2010 General Manager, Legal Affairs Department and General Affairs Department Jun 2011 General Manager, General Affairs Department Mar 2015 General Manager, Management Planning Office Jun 2016 Executive Officer, General Manager, Management Planning Office Apr 2022 Executive Officer, General Manager, Management Planning Office and Head Office Unit Jun 2024 Director in charge of Management Planning and Administration Divisions; Executive Officer, General Manager, Management Planning Office and Head Office Unit (current)

Apr 1994 Joined Yukō Audit Corporation (now Hibiki Audit Corporation) Jun 1997 Registered as Certified Public Accountant Jan 2005 Registered as Certified Tax Accountant Feb 2005 Opened Chiharu Mori Accounting Office (current) Jun 2023 Director of the Company (current)

Apr 2011 Joined the Company Mar 2015 Director, Otani Seitetsu Co., Ltd. May 2015 Director, Kansai Kogyo Co., Ltd. (current) Mar 2023 Managing Director, Otani Seitetsu Co., Ltd. (current) Jun 2026 Director of the Company (current)

Apr 1983 Joined the Company Sep 2010 General Manager, Domestic Electrode Sales Department Nov 2016 General Manager, Electrode and SK-B Unit Electrode Sales Department May 2017 Executive Officer, General Manager, Electrode and SK-B Unit May 2018 Executive Officer, General Manager, Electrode Unit Jun 2019 Audit & Supervisory Board Member of the Company (current)

Apr 1985 Joined the Company Jun 2012 General Manager, Accounting Department Dec 2020 Senior Manager, Accounting Department Jun 2021 Audit & Supervisory Board Member of the Company (current)

Oct 1991 Joined Chuo Shinko Audit Corporation (renamed Misuzu Audit Corporation) Apr 2006 Transferred to Chuo Aoyama Transaction Services (now PwC Advisory LLC) Dec 2017 Joined Mitsui & Co., Ltd. Jan 2019 Joined EY Transaction Advisory Services Co., Ltd. Aug 2021 Opened Kataoka Certified Public Accountant Office (current) Jun 2024 Audit & Supervisory Board Member of the Company (current)

Apr 2007 Joined Nikko Citigroup Securities Co., Ltd. (now Citigroup Securities Co., Ltd.) Dec 2010 Joined Nikko Cordial Securities Inc. (now SMBC Nikko Securities Inc.) Dec 2022 General Manager, Management Planning Office, Minami Holdings Co., Ltd. (current) Apr 2025 Opened D&G Consulting LLC Jun 2026 Director of the Company (current)

Apr 1984 Joined Minolta Camera Co., Ltd. (now Konica Minolta, Inc.) Apr 1995 Registered as attorney, Osaka Bar Association Apr 1995 Joined Asaoka Law Office (now Asaoka & Taki Law and Accounting Office) Apr 2016 Vice President, Osaka Bar Association Jan 2018 Representative, Asaoka & Taki Law and Accounting Office (current) Jan 2018 Audit & Supervisory Board Member, Kumon Institute of Education Co., Ltd. (current) Apr 2018 Member, Contract Monitoring Committee, Japan Mint (current) Jun 2026 Audit & Supervisory Board Member of the Company (current)