Mar 1994 Joined the Company Apr 2001 Manager, Business Planning Section, Planning Department, the Company Oct 2005 Seconded to Arsai (Suzhou) Inorganic Materials Co., Ltd. Jun 2011 Director, the Company Jun 2013 Managing Director, the Company Aug 2013 Chairman, Arsai (Suzhou) Inorganic Materials Co., Ltd. (current) Nov 2013 Representative Managing Director, the Company Jan 2014 Representative Director, President (in charge of Thermal Insulation Materials Business), the Company Mar 2017 Representative Director, President and Executive Officer (in charge of Thermal Insulation Materials Business), the Company (current) Oct 2023 Chairman, Arumi (Suzhou) Technology Co., Ltd. (current)

Dec 2001 Director, JCN Land Co., Ltd. Jun 2002 Audit & Supervisory Board Member, the Company Sep 2011 Supervisor, Arsai (Suzhou) Inorganic Materials Co., Ltd. (current) Jun 2017 Director and Executive Officer (General Affairs and Accounting), the Company Jan 2018 Director and Executive Officer (General Affairs, Accounting, Disclosure and IR), the Company (current) Oct 2023 Supervisor, Arumi (Suzhou) Technology Co., Ltd. (current)

Jul 2005 Joined the Company Oct 2005 Seconded to Arsai (Suzhou) Inorganic Materials Co., Ltd. Jul 2011 Director, Arsai (Suzhou) Inorganic Materials Co., Ltd. Jul 2014 Director and General Manager, Arsai (Suzhou) Inorganic Materials Co., Ltd. (current) Jun 2015 Director, the Company (current) Oct 2023 Director and General Manager, Arumi (Suzhou) Technology Co., Ltd. (current)

Jun 2006 Managing Director, Mitsubishi Chemical Sangyo Co., Ltd. Jun 2008 Executive Officer, Mitsubishi Chemical Corporation Apr 2013 Advisor, Mitsubishi Chemical Corporation Apr 2014 Advisor for New Business Development, the Company Jan 2019 Executive Officer for Carbon-related Business, the Company Jun 2019 Director and Executive Officer (in charge of Nanomaterials Business and New Business), the Company Jun 2023 Director (in charge of Nanomaterials Business and New Business), the Company Jun 2024 Director (in charge of Business Planning Office), the Company (current)

Apr 2011 Executive Officer, Mitsubishi Plastics, Inc. Apr 2012 Managing Director, Mitsubishi Chemical Group Science and Technology Research Center, Inc. Nov 2013 Executive Officer, Mitsubishi Chemical Corporation Jun 2015 Executive Officer, Taiyo Nippon Sanso Corporation Jul 2017 Chief Technology Officer, Taiyo Nippon Sanso Corporation Jul 2019 Executive Officer (in charge of Nanomaterials Technology and Carbon-related Business), the Company Jun 2022 Director and Executive Officer (in charge of Nanomaterials Technology and Carbon-related Business), the Company Jun 2023 Director and Executive Officer (in charge of Nanomaterials Business), the Company (current)

Jul 2012 Joined Recruit Co., Ltd. Oct 2019 Executive Officer, Chief Information Officer, Rosetta Co., Ltd. Feb 2021 Established KWN Consulting LLC, Chief Executive Officer Nov 2021 Chief Technology Officer, Nexus Agent Co., Ltd. Jan 2022 Chief Information Officer (concurrent), Nexus Agent Co., Ltd. Oct 2022 Director, Nexus Agent Co., Ltd. (current) Jun 2025 Director, the Company (current)

Apr 1989 Joined Tohmatsu Audit Corporation Sep 1991 Registered as Certified Public Accountant Apr 1996 Established Urushiyama Certified Public Accountant Office (currently Urushiyama Partners CPA Office), Representative (current) Jun 2014 Audit & Supervisory Board Member, the Company Jun 2017 Director (Audit and Supervisory Committee Member), the Company (current)

Apr 1979 Registered as Attorney-at-law Apr 2000 Established Wale Law Office Jun 2000 Audit & Supervisory Board Member, the Company Nov 2014 Established Altair Law Office (Attorney Corporation), Managing Attorney Nov 2018 Temporary Director (Audit and Supervisory Committee Member), the Company Jun 2019 Director (Audit and Supervisory Committee Member), the Company (current) Apr 2026 Associate Attorney, Altair Law Office (Attorney Corporation) (current)

Apr 2001 President, MC Research & Innovation Inc. (U.S. subsidiary of Mitsubishi Chemical Corporation) Jul 2006 AQSOA Project Manager, Mitsubishi Chemical Sangyo Co., Ltd. (currently Mitsubishi Plastics, Inc.) Jan 2015 Resigned from Mitsubishi Plastics, Inc. Feb 2015 Project Professor, Practice School in charge, Department of Chemical System Engineering, Graduate School of Engineering, The University of Tokyo Apr 2021 Managing Director, Product Innovation Association (General Incorporated Association) Apr 2021 Project Researcher and Part-time Lecturer, Department of Chemical System Engineering, Graduate School of Engineering, The University of Tokyo Jun 2021 Director (Audit and Supervisory Committee Member), the Company (current) Apr 2024 Representative Director, Product Innovation Association (General Incorporated Association) (current) Apr 2026 Part-time Lecturer, Department of Chemical System Engineering, Graduate School of Engineering, The University of Tokyo (current)