Note: This document is a translated version of the Japanese original. In the event of any discrepancy between this translated document and the Japanese original, the original shall prevail.



May 13, 2026

To whom it may concern:

Notice of the Result and Completion of the Acquisition of Own Shares through Off-Auction Own Share Repurchase Trading System (ToSTNeT-3)

Taiheiyo Cement Corporation (the "Company") hereby announces that the acquisition of treasury shares (the "Acquisition") announced on May 12, 2026 has been executed as follows. Furthermore, the Company announces that the Acquisition has been completed as resolved at the Board of Directors meeting and announced on May 12, 2026. In addition, as a result of the Acquisition, terms of the 1st issuance of stock acquisition right via third-party allotment based on a resolution at the Board of Directors meeting on May 12, 2026 has been finalized. For details, please refer to the Company's press release entitled "Notice on the Decision of Terms of the 1st Issuance of Stock Acquisition Rights via Third-Party Allotment for Acquisition of Own Shares via Fully Committed Share Repurchase (Japanese ASR)" dated May 13, 2026.

  1. Reason for the Treasury Share Acquisition

    In accordance with the Company's Medium-Term Management Plan, the Company intends to improve capital efficiency as well as enhance returns to shareholders by repurchasing its own shares.

  2. Overview of the Acquisition

(1)

Type of shares

Common stock

(2)

Total number of shares acquired

2,644,800 shares

(2.4% of the total number of shares outstanding, excluding treasury shares)

(3)

Total amount of acquisition price

JPY9,999,988,800

(4)

Acquisition date

May 13, 2026

(5)

Acquisition method

Purchase via Tokyo Stock Exchange off-auction own share repurchase trading system (ToSTNeT-3)

(Note) 2,644,800 shares out of the number of shares in (2) above were purchased from Nomura Securities Co., Ltd., but the number may fluctuate when accounting for adjustment transactions executed at a later date to ensure that the Company's actual purchase price will be equal to the average price of the Company's share over a certain period. For details, please refer to the Company's press release dated May 12, 2026 entitled "Notice Regarding Acquisition of Own Shares and Acquisition of Own Shares through the Off-Auction Own Share Repurchase Trading System

(ToSTNeT-3) (Acquisition of Own Shares Pursuant to Article 165, Clause 2 of the Companies Act and Acquisition of Own Shares through Fully Committed Share Repurchase (Japanese ASR))".

(Reference) Overview of the resolution on acquisition of own shares (announced May 12, 2026)

(1)

Type of shares

Common stock

(2)

Total number of shares to be

2,644,800 shares

acquired

(2.4% of the total number of shares outstanding, excluding treasury shares)

(3)

Total amount of acquisition price

JPY9,999,988,800

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Taiheiyo Cement Corporation published this content on May 13, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on May 13, 2026 at 04:10 UTC.