# Huntsman CORP (HUN) — merger/definitive [pending] Source: SEC API (secapi.ai) · situation sit_8931a0cb9129c6121dc5 · retrieved 2026-08-11T16:12:47.395Z ## Overview Olin Corporation is a chemicals and allied products manufacturer. On August 5, 2026, Olin Corporation sent a proxy solicitation to shareholders regarding the proposed merger with Huntsman Corporation. The Olin Board of Directors unanimously recommends shareholder approval of the transaction. A special meeting of Olin shareholders was scheduled to vote on the merger proposal. Olin and Huntsman filed a joint proxy statement/prospectus with the SEC, with the registration statement declared effective on July 13, 2026. ## Terms - Counterparty: Huntsman Corporation · Consideration: stock ## Key dates - Announced 2026-07-22 · Vote 2026-08-25 · Expected close 2027-06-30 ## Timeline - 2026-07-22 · 425 (0001193125-26-312426): 425 - Huntsman CORP — *Olin Corporation is a chemicals and allied products manufacturer.* Olin Corporation is soliciting shareholder votes for a proposed merger with Huntsman Corporation. The special meeting of Olin shareholders is scheduled for August 25, 2026. Olin's Board of Directors unanimously recommends voting FOR all proposals. An Olin registration statement on Form S-4 was filed on July 2, 2026 and amended on July 10, 2026, with the registration declared effective by the SEC on July 13, 2026. The definitive joint proxy statement/prospectus was mailed to shareholders on July 13, 2026. https://www.sec.gov/Archives/edgar/data/1307954/0001193125-26-312426.txt - 2026-07-29 · 425 (0001193125-26-323828): 425 - Huntsman CORP — *Olin Corporation is a chemicals and allied products manufacturer.* On July 29, 2026, Olin Corporation sent a proxy solicitation to shareholders regarding a proposed merger with Huntsman Corporation. The special meeting of Olin shareholders is scheduled for August 25, 2026, to vote on the merger. The Olin Board of Directors unanimously recommends that shareholders vote in favor of all proposals. An S-4 registration statement was filed on July 2, 2026, amended on July 10, 2026, and declared effective by the SEC on July 13, 2026, with a joint proxy statement/prospectus mailed to shareholders on July 13, 2026. https://www.sec.gov/Archives/edgar/data/1307954/0001193125-26-323828.txt - 2026-07-30 · 425 (0001104659-26-088793): 425 - Huntsman CORP — *Huntsman Corporation is a chemicals and allied products company engaged in industrial applications and services.* Huntsman Corporation announced a planned merger of equals with Olin Corporation. The companies have completed key milestones including signing and announcing the merger agreement, filing the Form S-4 registration statement (declared effective by the SEC on July 13, 2026), submitting HSR filings, and mailing definitive proxy materials. Stockholder meetings are scheduled for August 25, 2026. The companies expect to deliver $400 million-plus of anticipated synergies and integration benefits through greater scale, vertical integration, and enhanced long-term value generation. https://www.sec.gov/Archives/edgar/data/1307954/0001104659-26-088793.txt - 2026-07-31 · 425 (0001193125-26-328835): 425 - Huntsman CORP — *Olin Corporation is a chemicals and allied products manufacturer.* Olin Corporation is acquiring Huntsman Corporation in a stock-for-stock merger. The transaction was announced previously, with Olin filing its definitive proxy on July 13, 2026. Olin shareholders are voting at a Special Shareholder Meeting scheduled for August 25, 2026. The companies expect to close the transaction in the first half of 2027 and project $400 million in synergies from the combination. https://www.sec.gov/Archives/edgar/data/1307954/0001193125-26-328835.txt - 2026-07-31 · 425 (0001104659-26-089298): 425 - Huntsman CORP — *Huntsman Corporation is a global chemicals company with divisions in polyurethanes, performance products, advanced materials, and other chemical specialties.* Huntsman Corporation announced on June 16, 2026 a merger of equals with Olin Corporation. The combined company, to be led by Olin's Ken Lane as CEO, targets approximately $300 million in cost synergies, comprising $75 million in purchasing and logistics savings, $75 million from epoxy business overlap and increased consumption of chlorine, epi, LER, and EDC products, and $150 million in SG&A reductions. An additional $100+ million in synergies is expected from replacing an existing chlorine supply contract with internal supply upon contract expiration at the end of 2030. The transaction is structured as a stock-for-stock merger with Olin issuing shares to Huntsman shareholders. An S-4 registration statement was filed on July 2, 2026 and declared effective on July 13, 2026, with definitive proxy statements mailed to shareholders on July 13, 2026. https://www.sec.gov/Archives/edgar/data/1307954/0001104659-26-089298.txt - 2026-08-05 · 425 (0001193125-26-335221): 425 - Huntsman CORP — *Olin Corporation is a chemicals and allied products manufacturer.* On August 5, 2026, Olin Corporation sent a proxy solicitation to shareholders regarding the proposed merger with Huntsman Corporation. The Olin Board of Directors unanimously recommends shareholder approval of the transaction. A special meeting of Olin shareholders was scheduled to vote on the merger proposal. Olin and Huntsman filed a joint proxy statement/prospectus with the SEC, with the registration statement declared effective on July 13, 2026. https://www.sec.gov/Archives/edgar/data/1307954/0001193125-26-335221.txt ## Citations - 0001193125-26-312426 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526312426 - 0001193125-26-323828 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526323828 - 0001104659-26-088793 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000110465926088793 - 0001193125-26-328835 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526328835 - 0001104659-26-089298 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000110465926089298 - 0001193125-26-335221 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526335221