Olin Corp. and Huntsman Corp. recently announced that the waiting period under the U.S. Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act) in connection with the pending merger of the two companies has expired. The expiration of this waiting period satisfies one of the key closing conditions to the pending merger of equals. The purpose of the HSR Act is to give the U.S. Department of Justice and U.S. Federal Trade Commission an opportunity to investigate and potentially challenge mergers that could harm competition before the transactions occur.

As previously announced, on August 25, 2026, shareholders of both companies overwhelmingly approved the transaction. The two companies report that closing of the transaction remains subject to satisfaction of certain customary closing conditions, including receipt of additional regulatory approvals, which are underway. The combined organization, which will be renamed OlinHuntsman Corp. following the close of the transaction, will benefit from enhanced scale, scope, and expanded chlorine optionality, enabling it to create value across markets and cycles.