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Olin Corporation and Huntsman Corporation outline expected more than $400 million in annual cost synergies and integration benefits from their proposed combination. Management expects more than $300 million of annual near-term synergies, with over 90% anticipated within the first 24 months following closing, and more than $100 million of additional raw material integration benefits beginning in January 2031 after certain supplier contracts at Huntsman’s Geismar, Louisiana site expire.
The identified annual cost synergies comprise approximately $150 million SG&A savings from eliminating duplicative public‑company and corporate overhead, about $75 million from purchasing and raw material integration, and about $75 million from operational efficiencies and asset optimization. One‑time, non‑recurring costs to achieve the synergies are estimated at $150–$200 million. The companies also highlight an expected approximately $125 million one‑time cash tax benefit from accelerated use of net operating losses and note an estimated approximately $90 million economic benefit over five years from lower interest expense under the direct merger structure. Both companies emphasize vertical integration across chlorine, caustic soda, amines, MDI, epoxy and advanced materials as a key value driver and state that the newly formed OlinHuntsman would pursue additional revenue synergies not included in these figures.
Olin Corporation and Huntsman Corporation announced a proposed merger to form OlinHuntsman, a combined company led and governed by representatives of both firms. Ownership at signing is described as 54.5% for one side and 45.5% for the other. The communication emphasizes that Winchester Ammunition will remain a business within the combined company and that day-to-day operations continue unchanged while the transaction proceeds through customary shareholder and regulatory approvals.
Management highlights expected synergies including $75 million from purchasing and raw material integration and an additional $100 million of raw material integration benefits beginning in 2031. Integration planning, staffing impacts, benefits harmonization, and office footprint decisions will be evaluated after close; the companies say they intend to protect vested pension benefits and to communicate changes in advance.
Huntsman Corporation (HUN) posted a LinkedIn message describing a proposed combination with Olin Corporation that the companies say would create an integrated North American chemicals leader. The communication states the transaction is expected to close in the first half of 2027 and that Olin intends to file a Form S-4 containing a joint proxy statement/prospectus.
The post highlights complementary upstream and downstream capabilities, a significant U.S. Gulf Coast presence, an enhanced financial profile and cost position, and experienced leadership. The communication cautions that the Form S-4 and joint proxy statement/prospectus — when filed and declared effective — will be mailed to shareholders and stockholders and include further details and risks.
Olin Corporation posted a LinkedIn message on June 16, 2026 announcing a proposed combination with Huntsman Corporation to form OlinHuntsman Corporation. The post highlights complementary capabilities, Gulf Coast scale, improved financial profile, and world-class leadership, and states the transaction is expected to close in the first half of 2027. Olin and Huntsman intend to file a joint registration statement on Form S-4, which will include a joint proxy statement/prospectus to be mailed to shareholders after the registration statement is declared effective.
Olin and Huntsman announced an all-stock merger of equals to form OlinHuntsman Corporation, creating a combined company with >$12 billion in pro forma 2025 revenue. Huntsman shareholders will receive 0.5476 Olin shares per Huntsman share, leaving Olin holders with ~54.5% and Huntsman holders with ~45.5% of the combined company.
The companies expect >$400 million of cost synergies and integration benefits (including ~$300 million achievable within 24 months and an additional ~$100 million tied to 2031 contract expirations). Pro forma adjusted EBITDA is shown at ~$1.3 billion including synergies; pro forma net leverage is estimated at 4.6x year-end 2025 (approx. 3.2x with full synergy implementation). The transaction is expected to close in H1 2027, subject to regulatory and shareholder approvals.
Olin Corporation and Huntsman Corporation announced a proposed merger to combine the two companies, with close expected in the first half of 2027. The communication to employees emphasizes nothing changes today: pay, benefits, hours and daily responsibilities continue as usual, and Winchester will remain a core business in the combined company. The companies intend to file an Olin Form S-4 registering shares and a joint proxy statement/prospectus; shareholders will receive materials after the registration statement is declared effective. The message addresses workforce questions, compensation and benefits stability, integration governance and directs readers to SEC filings for full details.
Huntsman Corporation entered into an Agreement and Plan of Merger with Olin Corporation to combine in an all‑stock merger of equals announced in a Form 8-K dated June 15, 2026. Under the agreement each share of Huntsman common stock will convert into the right to receive 0.5476 shares of Olin common stock (the Exchange Ratio), with fractional shares settled in cash.
The Merger Agreement contemplates either a Direct Merger or a two‑step Subsidiary Merger route depending on Olin shareholder approvals, names the combined entity OlinHuntsman Corporation, sets a one‑year outside date with limited extensions, and requires regulatory clearances, stockholder approvals and an effective Form S‑4. The agreement includes a $121,000,000 termination fee and detailed treatment of equity awards, board composition and executive roles.
Huntsman Corporation has agreed to combine with Olin Corporation in an all-stock merger of equals. Huntsman shareholders will receive 0.5476 shares of Olin common stock for each share of Huntsman common stock, and the combined company will be named OlinHuntsman Corporation and headquartered in The Woodlands, Texas.
The deal can be structured either as a direct merger of Huntsman into Olin or through two subsidiary mergers, depending on which shareholder approvals Olin receives. The combined board will have 10 members, split evenly between current Olin and Huntsman independent directors, plus Olin CEO Kenneth Lane and Huntsman CEO Peter Huntsman. Lane will become CEO of the combined company, while Huntsman will serve as non-executive chair.
Closing is subject to Huntsman and Olin shareholder approvals, antitrust and other regulatory clearances, SEC effectiveness of an Olin Form S‑4, and NYSE listing approval for the merger consideration. The merger agreement includes mutual termination rights, a cash termination fee of $121,000,000 in specified circumstances, and up to $30,000,000 of expense reimbursement if shareholder approvals are not obtained. A separate voting and support agreement commits Peter Huntsman and affiliated entities to vote their Huntsman shares for the merger and against competing transactions, subject to defined termination events.
Olin Corporation announced a definitive agreement to combine with Huntsman Corporation in an all-stock merger of equals to form OlinHuntsman Corporation. The companies expect the transaction to close in the first half of 2027, subject to customary closing conditions, regulatory approvals and shareholder votes.
The communications excerpted here were sent to employees, customers, suppliers and stakeholders and state that until closing both companies will operate independently and business operations, roles, pay and contracts remain unchanged. The parties intend to file a Form S-4 that will include a joint proxy statement/prospectus and related SEC materials.