Huntsman Corporation shareholders approved the proposed merger of equals with Olin Corporation at a special meeting held on August 25, 2026. The Huntsman Merger Proposal received 131,502,454 votes in favor against 1,828,828, representing approximately 99% of votes cast and 75% of outstanding shares. An advisory vote on merger-related executive compensation also passed with 117,592,172 votes for. Based on these results, the parties will implement the combination via a direct merger where Huntsman merges into Olin. The transaction is expected to close in the first half of 2027, subject to regulatory approvals and other customary conditions. Huntsman Corporation operates as a global manufacturer and marketer of diversified chemical products.

Huntsman Corporation filed a supplemental disclosure to its joint proxy statement/prospectus regarding the proposed merger of equals with Olin Corporation. The filing addresses stockholder complaints alleging material omissions in prior disclosures by voluntarily amending financial analyses provided by advisors Lazard, Citi, and Morgan Stanley. Key updates include revised net debt figures for valuation purposes ($2,804 million for Olin and $1,908 million for Huntsman as of March 31, 2026), corrected fully diluted share counts (approximately 178 million for Huntsman and 118 million for Olin), and updated comparable company valuation multiples. The board continues to recommend a vote 'FOR' the merger at special meetings scheduled for August 25, 2026. Huntsman Corporation operates in the specialty chemicals industry, producing polyurethanes, petrochemicals, and performance materials.

Huntsman Corporation reported second quarter 2026 results with revenues of $1,663 million and a net loss attributable to Huntsman of $6 million, compared to a $158 million loss in the prior year period. Adjusted EBITDA increased to $120 million from $74 million, while adjusted net income was nil versus an adjusted loss of $34 million previously. The company also highlighted progress on its planned all-stock merger of equals with Olin Corporation, noting that the stockholder vote is scheduled for August 25, 2026. Huntsman operates in the global chemical manufacturing industry.

On June 15, 2026, Huntsman Corporation entered into an Agreement and Plan of Merger with Olin Corporation in an all-stock merger of equals. Under the terms, each share of Huntsman common stock will be converted into 0.5476 shares of Olin common stock. The combined entity will be named "OlinHuntsman Corporation," headquartered in The Woodlands, Texas, with Kenneth Lane as CEO and Peter Huntsman as non-executive Chair. The agreement includes a $121 million termination fee payable under specific circumstances. The transaction is subject to shareholder approvals and regulatory clearances. Huntsman operates in the chemical industry, manufacturing and marketing a diverse range of chemical products.

On June 16, 2026, Huntsman Corporation and Olin Corporation announced a proposed all-stock merger of equals transaction, based on an Agreement and Plan of Merger entered into on June 15, 2026. The companies intend to file a registration statement on Form S-4 and a joint proxy statement/prospectus to seek shareholder approval. Huntsman operates in the chemical industry, manufacturing and marketing a diverse range of chemical products.