Apr 1989 Joined Mitsui & Co., Ltd. Mar 1995 Completed MBA program, Graduate School of Management, University of California, Los Angeles Apr 1995 Joined Boston Consulting Group K.K. Jul 1996 Joined Goldman Sachs Securities Co., Ltd. Jul 1998 Appointed Representative Director, President, Office Ogi Co., Ltd. (now the Company) (current) Mar 2000 Established PI Technology Co., Ltd. (now Ichigo Inc.), appointed Representative Director Feb 2002 Appointed Representative Director, President, Star Mica Co., Ltd. Dec 2014 Appointed Representative Director, Chairman, Star Mica Co., Ltd. May 2016 Appointed Representative Director, Chairman and President, Star Mica Co., Ltd. Feb 2017 Appointed Representative Director, President, Star Mica Co., Ltd. (current)

Apr 1988 Joined Ministry of International Trade and Industry (now Ministry of Economy, Trade and Industry) Jan 2000 Associate Professor, Institute of Social and Economic Research, Osaka University Jun 2003 Chairman, Policy Evaluation Network (Nonprofit Organization) (current) Jul 2004 Officer, Market Division, Planning and Coordination Bureau, Financial Services Agency Jul 2008 Research Officer for Corporate Legal Systems, Industrial Policy Bureau, Ministry of Economy, Trade and Industry Mar 2012 Retired from Ministry of Economy, Trade and Industry Apr 2012 Professor, Faculty of Economics, Nihon University (current) Feb 2013 Appointed Outside Director, Star Mica Co., Ltd. Feb 2016 Appointed Director (Audit and Supervisory Committee Member), Star Mica Co., Ltd. Jun 2018 Appointed Outside Director, AS ONE Corporation (current) Nov 2018 Appointed Outside Director of the Company Jun 2019 Appointed Outside Director (Audit and Supervisory Committee Member) of the Company (current) Feb 2023 Appointed Director, Star Mica Co., Ltd.

Apr 1990 Joined Kawatetsu Shoji, Ltd. (now JFE Shoji Corporation) Apr 1992 Joined Kawasaki Steel Corporation (now JFE Engineering Corporation) Oct 1994 Joined Taisei Kiko Co., Ltd. Feb 2006 Appointed Representative Director, President, Taisei Kiko Co., Ltd. Mar 2011 Established Taisei CI Co., Ltd., appointed Representative Director (current) Apr 2018 Appointed Member, School Management Council, Osaka Prefectural Nishinoda Technical High School (current) May 2018 Appointed Director, Kansai Economic Doyukai (General Incorporated Association) (current) Jun 2019 Appointed Outside Director (Audit and Supervisory Committee Member) of the Company (current) Feb 2020 Appointed Auditor, Star Mica Co., Ltd. (current)

Apr 1989 Joined Document Division, Secretariat, Ministry of Posts and Telecommunications Apr 1991 Joined Research Department, Institute of Financial and Monetary Research, Ministry of Finance Jul 1992 Long-term overseas researcher, National Personnel Authority Jun 1996 Senior Researcher, Postal Research Institute, Ministry of Posts and Telecommunications Apr 2000 Associate Professor, Department of Business Administration, Faculty of Economics, Gakushuin University Dec 2003 Completed doctoral program, Haas School of Business, University of California, Berkeley (Ph.D.) Apr 2004 Professor, Department of Business Administration, Faculty of Economics, Gakushuin University (current) Feb 2021 Appointed Outside Director (Audit and Supervisory Committee Member) of the Company (current)

Apr 1991 Joined Boston Consulting Group K.K. Mar 2007 Appointed Auditor, Oya Eiko Office Co., Ltd. Nov 2017 Appointed Director, Oya Soichi Library (Public Interest Foundation) (current) Feb 2024 Appointed Outside Director (Audit and Supervisory Committee Member) of the Company (current) Sep 2025 Appointed Director, Oya Eiko Office Co., Ltd. (current)