Huntsman CORP (HUN) · Aug 25, 2026 · Acquisition

Huntsman shareholders approve Olin merger, but 2027 closing still awaits regulators

Shareholder approval — 97% of Olin and 99% of Huntsman votes cast approved the merger

The merger clears its shareholder vote with overwhelming support, but regulatory approval and other closing conditions remain before the first-half 2027 target.

The vote clears a known transaction milestone, rather than changing the deal thesis. Olin and Huntsman had already announced the all-stock merger, and shareholder approval was a stated closing condition; the approval meetings and first-half 2027 target were disclosed well before this filing.

Shareholder support was comfortably above the required threshold. Approximately 97% of votes cast at Olin and 99% at Huntsman supported the merger, with approval representing 81% and 75% of outstanding shares, respectively. 〔0〕 〔1〕

The remaining risk is execution, not shareholder resistance. Final vote counts still require certification, while regulatory approvals and other customary conditions remain outstanding; the companies continue to target closing in the first half of 2027. 〔2〕

Net read: confirmation, not a fresh positive surprise. The overwhelming vote removes one meaningful failure point, but because approval was broadly anticipated and no new synergy figures, timing acceleration, or regulatory clearance was provided, this filing is best treated as in line with the standing merger case.

What to watch next

Final vote certification and regulatory approvals before H1 2027 close

Original filing on SEC EDGAR

More Huntsman CORP news

Huntsman shareholders approve Olin merger, but 2027 closing still awaits regulators | HUN Stock News
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