Shikoku Electric Power Company, IncorporatedTSE: 9507

Shikoku Electric Power Incorporated: Notice Concerning the Status and Completion of the Acquisition of Treasury Shares

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Note: This document has been translated from the Japanese original for reference purposes only. In the event of any discrepancy

between this translated document and the Japanese original, the original shall prevail.

September 18, 2026

Company name:

Shikoku Electric Power Company,

Incorporated

Name of representative:

Yoshihiro Miyamoto,

Director and President

(Securities code: 9507; Prime Market, Tokyo Stock Exchange)

Inquiries:

Keiko Shirai,

Manager of Stock Registration & Document Administration Group, General Affairs Dept.

(Telephone: +81-87-821-5061)

Notice Concerning the Status and Completion of the Acquisition of Treasury Shares (Acquisition of Treasury Shares Pursuant to the Articles of Incorporation Based on the Provision of

Article 165, Paragraph 2 of the Companies Act)

Shikoku Electric Power Company hereby announces the status of the acquisition of treasury shares pursuant to the provisions of Article 156 of the Companies Act, as applied mutatis mutandis under Article 165, Paragraph 3 of the same Act, as follows.

The Company also announces that the acquisition of treasury shares based on the resolution of its Board of Directors at a meeting held on July 31, 2026 has been completed with this acquisition.

(1)

Class of shares acquired

Common shares

(2)

Total number of shares

acquired

629,200 shares

(3)

Total amount of share

acquisition costs

1,354,584,140 yen

(4)

Acquisition period

From September 1 to September 18, 2026

(5)

Acquisition method

Market purchase on the Tokyo Stock Exchange

(Reference)

  1. Details of the resolution Adopted at the Board of Directors meeting held on July 31,2026

    (1)

    Class of shares to be acquired

    Common shares

    (2)

    Total number of shares to be

    acquired

    Up to 2,000,000 shares

    (1.0% of total number of issued shares (excluding treasury shares))

    (3)

    Total amount of share

    acquisition costs

    Up to 3,500,000,000 yen

    (4)

    Acquisition period

    From August 3 to September 30, 2026

    (5)

    Acquisition method

    Market purchase on the Tokyo Stock Exchange

    Total number of shares acquired

    1,810,200 shares

    Total amount of share acquisition costs

    3,499,784,982 yen

  2. Cumulative number of treasury shares acquired pursuant to the above resolution of the Board of Directors (As of September 18, 2026)