Mitsui Chemicals, Inc. TSE:4183

Mitsui Chemicals : 【Timely Disclosure】Notice Regarding Repurchase of Own Shares and Cancellation of Treasury Shares

Published

Source: MarketScreener

Company name: Mitsui Chemicals, Inc.

HASHIMOTO Osamu,

February 5, 2026

Name of representative:

Representative Director and President (Securities code: 4183 :Prime Market)

Inquiries:

TAKATAMA Yoshinori,

General Manager of Corporate Communications Division (Telephone: ＋81-3-6880-7500)

Notice Regarding Repurchase of Own Shares and Cancellation of Treasury Shares (Repurchase of Own Shares pursuant to Article 165, Paragraph 2 of the Companies Act, based on a provision of the Articles of Incorporation and Cancellation of Treasury Shares pursuant to Article 178 of the Companies Act)

Mitsui Chemicals, Inc. (Tokyo: 4183; President & CEO: HASHIMOTO Osamu; "the Company") hereby announces that, at the Board of Directors meeting held today, the Company resolved (1)to repurchase its own shares pursuant to Article 156 of the Companies Act as applied mutatis mutandis pursuant to Article 165, Paragraph 3 of the Act and (2) to cancel treasury shares pursuant to Article 178 of the Act, as described below.

  1. Reason for Repurchase and Cancellation Shares

    The company will repurchase its own shares to improve capital efficiency and will cancel treasury shares to enhance the effectiveness of shareholder returns.

  2. Details of Repurchase

    (1)

    Class of shares to be

    repurchased

    Common shares of the Company

    (2)

    Total number of shares to be repurchased

    Up to 18,400,000 shares

    (Percentage to the total number of shares in issue (excluding treasury shares) 4.9%)

    (3)

    Total amount of

    repurchase

    Up to JPY 30,000,000,000

    （4）

    Repurchase period

    From February 6, 2026 to July 31, 2026

    （5）

    Repurchase method

    Market purchases based on a discretionary dealing contract regarding repurchase

    of its own shares

  3. Details of Cancellation

（1）

Class of shares to be

cancelled

Common shares of the Company

（2）

Number of shares to be cancelled

The number of treasury shares held by the Company will be reduced through cancellation so that, upon completion of the share repurchase pursuant to 2.

above, it will be approximately 5% of the total number of shares in issue. (Note)

（3）

Scheduled date of

cancellation

August 31, 2026

(Note) The number of shares to be cancelled will be announced after completion of the repurchase of shares pursuant to 2. above.

（Reference）Status of shares in issue and treasury shares as of January 31, 2026

The total number of shares in issue (excluding treasury shares)

376,523,573shares

Number of treasury shares

25,164,057shares

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.