Sekisui Chemical Co., Ltd.TSE: 4204

Announcement concerning the Status of the Acquisition of Treasury Shares

· Issued by Sekisui Chemical Co., Ltd.

Press Release

December 2, 2025 SEKISUI CHEMICAL CO., LTD.

Announcement concerning the Status of the Acquisition of Treasury Shares

SEKISUI CHEMICAL CO., LTD. is announcing the status of acquisition of treasury shares conducted in November, 2025 pursuant to the provisions of Article156 of the Corporate Law after applying the provisions of Article 165, Item 3 of the Law, concerning which acquisition notification was given on October 30, 2025, as follows:

Details of the acquisition

  1. Type of shares to be acquired: Common shares of SEKISUI CHEMICAL

  2. Total number of shares acquired: 3,894,100 shares

  3. Total cost of the acquisition: 9,903,642,600 yen

  4. Date of the acquisition: From November 1, 2025 to November 30, 2025

  5. Acquisition method: Repurchase through ToSTNeT-3 of the Tokyo Stock Exchange and Market buying on the Tokyo Stock Exchange

(Reference)

  1. Details of the resolution of the Board of Directors meeting held on October 30, 2025

    • Type of shares to be acquired: Common shares of the SEKISUI CHEMICAL

    • Total number of shares to be acquired: Up to 10,000,000 shares (maximum) (Percentage of total number of issued shares (excluding treasury stock): 2.41%)

    • Total acquisition cost: Up to 30 billion yen (maximum)

    • Acquisition period: From October 31, 2025 to March 31, 2026

  2. Status of the acquisition as of November 30, 2025

    • Total number of shares acquired: 3,894,100 shares

    • Total amount of acquisition cost: 9,903,642,600 yen

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