Shareholders of Olin Corporation and Huntsman Corporation have overwhelmingly approved the companies’ proposed all-stock merger of equals, clearing a major hurdle toward the creation of a global chemicals powerhouse.

 

The votes put the transaction on track to close in the first half of 2027, subject to regulatory approvals and other customary closing conditions.

 

At Olin’s special shareholder meeting, about 97% of votes cast—representing 81% of all outstanding shares—backed the transaction. Huntsman shareholders were even more decisive, with approximately 99% of votes cast, representing 75% of outstanding shares, voting in favor.

 

The companies said the merger will proceed through a direct merger of Olin and Huntsman, based on the preliminary results.

 

"We greatly appreciate the strong support of Olin and Huntsman shareholders as we reach this important milestone," said Ken Lane, President and Chief Executive Officer of Olin. 

 

"OlinHuntsman Corporation will be a more value-focused chemicals company with a world-scale vertically integrated platform that is better positioned to serve customers across the value chain and deliver resilient financial performance. We are committed to completing the remaining steps to close the transaction, and to delivering long-term value for our shareholders, customers, employees, and communities as one company."

 

Peter Huntsman, Chairman, President and Chief Executive Officer of Huntsman, said the combined business would have greater scale and a stronger competitive position.

 

"OlinHuntsman will be better positioned to compete in an increasingly global industry, delivering value, adding products and greater service for customers," said Peter Huntsman, Chairman, President and Chief Executive Officer of Huntsman. "We thank our shareholders for the overwhelming support at the special meeting and look forward to completing this combination and getting to work building a global chemicals leader."

 

The final vote tallies still must be certified by the companies’ independent election inspectors and will be filed with the U.S. Securities and Exchange Commission in separate Form 8-K reports.

 

The deal remains subject to required regulatory clearances and other closing conditions. If completed, the merger will combine two major U.S. chemical manufacturers at a time when the industry faces intense global competition, volatile raw-material and energy costs, and shifting supply-and-demand dynamics.

 

Huntsman reported approximately $6 billion in 2025 revenue from continuing operations and operates more than 55 manufacturing, research and development, and other facilities across roughly 25 countries, with about 6,000 employees in its continuing operations.

 

Olin is a vertically integrated chemical manufacturer producing chlorine and caustic soda, vinyls, epoxies, chlorinated organics, bleach, hydrogen and hydrochloric acid. Its businesses also include Winchester, a major U.S. ammunition manufacturer.

 

The companies cautioned that the anticipated benefits of the merger—including future synergies and the expected closing timeline—remain subject to significant risks and uncertainties, including regulatory approvals, litigation, market conditions, integration challenges and the possibility that the transaction may not be completed.