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.
December 25, 2025
[Change to Disclosed Matters] Acquisition of Ready-Mixed Concrete Business Assets from Vulcan Materials Company
Regarding the disclosure titled "Notice Regarding Acquisition of Ready-Mixed Concrete Business Assets from Vulcan Materials Company" dated as of October 28, 2025, Taiheiyo Cement Corporation (Head Office: Bunkyo-ku, Tokyo; President and Representative Director: Yoshifumi Taura; "Taiheiyo Cement") would like to inform you that there has been a change as described below.
Reason for the Change
Taiheiyo Cement's consolidated subsidiary CalPortland Company (Head Office: California, USA; "CPC") received a "Request for Additional Information and Documentary Materials" ("Second Request") from the U.S. Department of Justice (the "DOJ") in connection with the DOJ's review of the previously announced acquisition of ready-mixed concrete business assets in California from Vulcan Material Company (Head Office: Alabama, USA) by CPC ("Transaction"). A Second Request is a common standard feature of the review process for transactions of this type under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR Act").
The Transaction closing is subject to the expiration or termination of the waiting period under HSR Act and the satisfaction of other closing conditions. Accordingly, Taiheiyo Cement revises the future outlook of the closing date of the Transaction. Taiheiyo Cement will continue to fully cooperate with the examination of the relevant authorities and are determined to complete the Transaction as promptly as possible.
Future Outlook
Revised Section: Transaction Closing Date (Before the Change) December 2025
(After the Change) Within the first half of 2026 (calendar year)