Japan Petroleum Exploration : Notice regarding Changes of Representative Director, Directors, and Audit & Supervisory Board Members(192.6 KB)

Note: The following is an English translation of the Japanese-language original

May 13, 2026

Company Name: Japan Petroleum Exploration Co., Ltd. (JAPEX) Securities Code: 1662 (Prime Market of the Tokyo Stock Exchange)

Representative: YAMASHITA Michiro, Representative Director and President Inquiries: Corporate Communication Office

TEL: +81-3-6268-7110

Notice regarding Changes of Representative Director, Directors, and Audit & Supervisory Board Members

Japan Petroleum Exploration Co., Ltd. (JAPEX) announced that the following changes of Representative Director, Directors, and Audit & Supervisory Board Members are tentatively decided at a board of directors meeting held today. The changes are subject to approval at the 56th ordinary general meeting of shareholders, etc. to be held on June 23, 2026.

1. Change of Representative Director (as of June 23, 2026) * Change is underlined
   1. Reason for Change

      To achieve further growth and enhance corporate value through the implementation of the “JAPEX Management Plan 2026–2035”

   2. Detail of Change

      Name	New Position	Current Position
      NAKAJIMA Toshiaki	Representative Director, Executive Vice President President of Corporate Strategy Division, in charge of Legal Office	Director, Executive Vice President President of Corporate Strategy Division, in charge of Legal Office

   3. Biography of the Candidate for new Representative Director

   Name	Date of Birth	Career Summary		Shareholds
   NAKAJIMA Toshiaki	May 1, 1962	April, 1986	Joined JAPEX	18,200
   		June, 2010	General Manager of Corporate Planning Dept.
   		June, 2019	Executive Officer
   		June, 2021	Managing Executive Officer
   		June, 2022	Director, Managing Executive Officer
   		April, 2025 April, 2026	Director, Senior Managing Executive Officer Director, Executive Vice President (Current Title)

2. Change of Directors (as of June 23, 2026) * Changes are underlined
   1. Candidate for New Director

      Name	New Position	Current Position
      MIMURA Akiko	Outside Director*	-

      * The Outside Director is stipulated under Article 2-15 of the Companies Act of Japan.

   2. Director to be retired

   Name	New Position	Current Position
   Kitai Kumiko	-	Outside Director*

   * The Outside Director is stipulated under Article 2-15 of the Companies Act of Japan.

3. Change of Audit & Supervisory Board Members (as of June 23, 2026) * Changes are underlined

1. Candidate for New Audit & Supervisory Board Member

   Name	New Position	Current Position
   YOSHIDA Kosei	Audit & Supervisory Board Member	Advisor to President of Overseas Business Division Advisor to President of Technical Division

2. Audit & Supervisory Board Member to be retired

Appendix: Executives of Japan Petroleum Exploration Co., Ltd. (as of June 23, 2026)

Note) YAMASHITA Yukari, SUGIYAMA Yoshikuni, KAKIGI Koji, WADA Masaki and MIMURA Akiko are the Outside Directors as stipulated under Article 2-15 of the Companies Act of Japan.

Note) KAWAKITA Chikara and KATO Yoshitaka are the Outside Audit & Supervisory Board Members as stipulated under Article 2-16 of the Companies Act of Japan.

Note) Fellow supports the Board Members and senior managements with high degree expertise in the specialized fields.

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