Olin and Huntsman Shareholders Approve the OlinHuntsman Merger

Shareholder Vote Clears Key Hurdle

Olin Corporation and Huntsman Corporation announced that their respective shareholders have approved the proposals necessary to complete the previously announced all-stock merger of equals. At Olin's special meeting approximately 97% of votes cast, representing 81% of all outstanding shares, supported the transaction. At Huntsman's meeting 76.23% of voting power was represented with roughly 99% of votes cast in favor.

Both companies held special meetings on August 25, 2026, with shareholders overwhelmingly approving the merger agreement and advisory vote on merger-related executive compensation.

Structure and Timeline

The transaction is planned as a direct merger under which Huntsman would merge into Olin, forming the combined company OlinHuntsman Corp. The merger is expected to close in the first half of 2027, subject to regulatory approvals and customary closing conditions.

The companies described the deal as establishing a leading North American integrated chemicals producer, combining Olin's chlor-alkali, vinyls and epoxy assets with Huntsman's polyurethanes and performance products portfolio.

Regulatory Progress After Shareholder Approval

Following shareholder approval, the merger cleared a key US antitrust milestone. The expiration of the Hart-Scott-Rodino waiting period satisfies one of the key closing conditions to the pending merger of equals.

The combined organization, which will be renamed OlinHuntsman Corp, moves forward while additional regulatory clearances are pending. Shareholders of both companies backed the transaction on Aug. 25, 2026, and closing still depends on additional regulatory clearances.

Why the Market Is Watching This Combination

The merger comes as North American chemical producers navigate oil price volatility, softer rubber carbon black pricing, Chinese overcapacity pressure and freight repricing around Hormuz. Scale in chlorine derivatives and polyurethanes offers a hedge against single-product cyclicality.

For LAB, LABSA and broader surfactant chains that saw US LAB prices spike 6.67% in May 2026 on collapsed Gulf supply and peak detergent demand, larger integrated producers with diversified feedstock and Red Sea logistics options are better positioned.

What Comes Next

With shareholder approval secured, focus shifts to remaining regulatory reviews in the US and other jurisdictions, integration planning, and portfolio optimization. The companies have emphasized value-focused chemicals, improved cash flow and capital allocation discipline, similar to SABIC's $500 million sale of its European petrochemicals business to AEQUITA.

Working Source Links:

Olin and Huntsman Shareholders Approve Transformative Merger of Equals - https://finviz.com/news/385398/olin-and-huntsman-shareholders-approve-transformative-merger-of-equals

Huntsman Shareholders Approve Merger Creating OlinHuntsman - 76.23% voting power represented, 99% in favor - https://www.tipranks.com/news/company-announcements/huntsman-shareholders-approve-merger-creating-olinhuntsman

OLN-HUN All-Stock Merger of Equals Approved by Shareholders - https://www.zacks.com/stock/news/2980511/oln-huns-all-stock-merger-of-equals-approved-by-shareholders

Olin, Huntsman Clear Key Regulatory Step in Merger - HSR Waiting Period Expires - https://www.adhesivesmag.com/articles/102656-olin-huntsman-clear-key-regulatory-step-in-merger

Olin-Huntsman Merger Clears US HSR Antitrust Waiting Period - https://www.webull.com/news/15559500909555712

Olin Shareholders Clear Path for OlinHuntsman Merger - 8-K Filing - https://www.stocktitan.net/sec-filings/OLN/8-k-olin-corp-reports-material-event-7154c9bf255e.html