Apr 1985: Joined Bank of the Ryukyus Dec 2010: Branch Manager, Koza Branch Jun 2012: General Manager, Sales Division Jun 2013: Executive Officer, General Manager, Sales Division Jun 2014: Director, General Manager, Sales Division Jun 2015: Director, General Manager, General Planning Department and Head of Related Business Office Jun 2016: Managing Director Apr 2017: President and Representative Director Apr 2024: Chairman and Representative Director (current)

Apr 1987: Joined Bank of the Ryukyus Jun 2005: Manager, Market Finance Section, International Securities Department Jun 2012: Branch Manager, Tomari Branch Jun 2014: Deputy General Manager, Human Resources Department Apr 2017: Deputy General Manager, Human Resources Department Nov 2017: General Manager, General Affairs Department Apr 2021: General Manager, General Planning Department Apr 2022: Managing Executive Officer Jun 2022: Managing Director Oct 2023: Senior Managing Director and Representative Director Apr 2024: President and Representative Director (current)

Apr 2007: Joined Bank of the Ryukyus Jun 2010: Manager, Retail Business Section, Sales Division Jun 2014: Branch Manager, Tomari Branch Apr 2016: Branch Manager, Nishihara Branch Apr 2018: Deputy General Manager, Sales Promotion Department Apr 2020: General Manager, Human Resources Department Apr 2022: General Manager, General Planning Department Apr 2023: Managing Executive Officer Jun 2023: Managing Director Apr 2024: Senior Managing Director and Representative Director (current)

Apr 1992: Joined Bank of the Ryukyus Mar 2013: Branch Manager, Makabe Branch Dec 2014: Branch Manager, Ishikawa Branch Apr 2017: Branch Manager, Yonabaru Branch Jul 2018: Deputy General Manager, General Planning Department and Head of Related Business Office Apr 2020: General Manager, Internal Audit Department Apr 2021: General Manager, Operations Division Apr 2023: General Manager, General Planning Department Apr 2024: Managing Executive Officer Jun 2024: Managing Director (current)

Apr 2007: Joined Bank of the Ryukyus Apr 2015: Branch Manager, Shogyo Danchi Branch Apr 2017: Branch Manager, Futenma Branch Apr 2018: General Manager, Credit Examination Department Apr 2022: President and Representative Director, Ryukyu Lease Co., Ltd. Apr 2024: Managing Executive Officer, Bank of the Ryukyus Jun 2024: Managing Director (current)

Apr 1991: Joined Bank of the Ryukyus Apr 2013: Branch Manager, Sakata Branch Apr 2015: Branch Manager, Chatan Branch Apr 2017: Branch Manager, Miyako Branch Apr 2020: General Manager, Head Office Sales Department Apr 2022: General Manager, Sales Promotion Department Apr 2024: General Manager, General Planning Department Apr 2025: Managing Executive Officer Jun 2025: Managing Director (current)

Apr 1980: Joined Ryukyu Sekiyu Co., Ltd. (now Ryusekiyu Co., Ltd.) Jun 2001: Manager, Business Planning, Ryusekiyu Co., Ltd. Jun 2003: Director, General Manager, Administration Department and Secretariat Office, Ryusekiyu Co., Ltd. Jun 2005: Director, General Manager, Business Development Division, Ryusekiyu Co., Ltd. Jun 2011: Managing Director, General Manager, Business Development Division and General Manager, Hotel and Restaurant Business Division, Ryusekiyu Co., Ltd. May 2014: Representative Director, Ryusekiyu Trading Co., Ltd. May 2014: Director (part-time), Ryusekiyu Co., Ltd. May 2019: Resigned as Representative Director, Ryusekiyu Trading Co., Ltd. Jun 2019: Resigned as Director, Ryusekiyu Co., Ltd. Jun 2020: Director, Bank of the Ryukyus (current) Apr 2021: Part-time Executive Director, University of the Ryukyus Mar 2025: Resigned as Part-time Executive Director, University of the Ryukyus

Apr 1979: Joined Development Bank of Japan (now Development Bank of Japan Inc.) Jul 1985: Stationed at the Organisation for Economic Co-operation and Development (OECD), Paris Mar 1994: Brookings Institution, United States Oct 2000: Associate Professor, Institute of Economic Research, Hitotsubashi University Oct 2007: Director, Equipment Investment Research Institute, Development Bank of Japan Inc. Apr 2012: Professor, Graduate School of Commerce, Hitotsubashi University Apr 2020: Professor, Saitama Gakuen University Jun 2020: Director, Bank of the Ryukyus (current) Apr 2023: Dean, Faculty of Economics and Business Administration, Saitama Gakuen University (current)

Apr 1987: Joined Bank of the Ryukyus Jun 2005: Manager, Deposit Section, Head Office Sales Department Apr 2006: Manager, Operations Planning Section, Operations Division Jun 2011: Deputy General Manager, Human Resources Department Apr 2014: Branch Manager, Ginowan Branch Apr 2016: Branch Manager, Shuri Branch Apr 2017: General Manager, Human Resources Department Apr 2020: General Manager, Centralized Operations Department Apr 2021: President and Representative Director, Ryugin Research Institute Co., Ltd. Apr 2023: Executive Officer, Bank of the Ryukyus Jun 2023: Full-time Statutory Auditor (current)

Apr 1989: Joined Bank of Japan Jul 2004: Planning Officer, Operations Department Jul 2009: Senior Planning Officer, Operations Department Jul 2010: Manager, Operations Business Section, Operations Department Feb 2011: Manager, Operations Section, Osaka Branch Sep 2013: Manager, Business Continuity Planning Section, Settlement Systems Department May 2015: Chief Manager, Operations Department Mar 2017: Director, Mito Office May 2018: Manager, Naha Branch Nov 2020: Retired from Bank of Japan Dec 2020: Director, Masuoka-gumi Co., Ltd. Dec 2022: Managing Director, Masuoka-gumi Co., Ltd. Dec 2023: Adviser, Masuoka-gumi Co., Ltd. (current) Jun 2024: Statutory Auditor, Bank of the Ryukyus (current)

Apr 1982: Joined Shuri Kanko Co., Ltd. Nov 1989: Joined Daini Denden Inc. (now KDDI Corporation) Apr 2004: General Manager, Sales Division, Okinawa Cellular Telephone Company Jun 2006: Executive Officer, Okinawa Cellular Telephone Company Jun 2007: Director, Okinawa Cellular Telephone Company Jun 2013: Managing Director (in charge of Sales), Okinawa Cellular Telephone Company Jun 2016: President and Representative Director, Okinawa Communication Network Co., Ltd. Apr 2017: Managing Director, General Manager, Sales Headquarters, Okinawa Cellular Telephone Company Jun 2017: Executive Vice President and Representative Director, General Manager, Sales Headquarters, Okinawa Cellular Telephone Company Jun 2019: Vice President and Representative Director, General Manager, Sales Headquarters, Okinawa Cellular Telephone Company Jun 2020: Resigned as Vice President and Representative Director, Okinawa Cellular Telephone Company Jun 2022: Adviser, Okinawa Communication Network Co., Ltd. Jul 2022: Adviser, Okinawa Cellular Telephone Company Jun 2023: Resigned as Adviser, Okinawa Cellular Telephone Company Jun 2023: Resigned as Adviser, Okinawa Communication Network Co., Ltd. Sep 2023: Adviser, Glovalex Okinawa Co., Ltd. (current) Jun 2026: Director, Bank of the Ryukyus (current)

Oct 1999: Passed Second Stage of Japanese CPA Examination; registered as Certified Public Accountant Trainee; joined Ota Showa & Co. (now EY ShinNihon LLC) Apr 2003: Passed Third Stage of Japanese CPA Examination; registered as Certified Public Accountant Jun 2013: Secretary, Okinawa Chapter, Japanese Institute of Certified Public Accountants Feb 2016: Opened Koike CPA Office (now Mayumi Koike CPA Office) Apr 2016: Auditor, National University Corporation University of the Ryukyus May 2018: Director, Kinsho Head Office Co., Ltd. (now Kinsho Holdings Co., Ltd.) May 2021: Statutory Auditor, Kinsho Holdings Co., Ltd. (current) Jun 2024: Statutory Auditor, Bank of the Ryukyus (current)

Apr 1985: Joined Chiyoda Life Insurance Company Apr 1991: Asset Management Planning Department, Chiyoda Life Insurance Company Nov 2000: Japan Risk Data Bank Co., Ltd. Jul 2005: Basel II Promotion Office, General Affairs Division, Supervisory Bureau, Financial Services Agency Aug 2007: General Manager, Corporate Planning Department, AIG Co., Ltd. Feb 2013: Chief Risk Officer, Executive Officer in charge of Risk Management, Prudential Holdings of Japan Inc. Jun 2017: Chief Risk Officer, Executive Officer in charge of Risk Management, Prudential Life Insurance Company, Ltd. Oct 2021: Executive Officer in charge of Audit Team, Prudential Life Insurance Company, Ltd. Jun 2025: Resigned as Executive Officer in charge of Audit Team, Prudential Life Insurance Company, Ltd. Jun 2025: Statutory Auditor, Bank of the Ryukyus (current)