OLIN and HUNTSMAN Announce Expiration of Hart-Scott-Rodino Waiting Period for Proposed Merger
HSR waiting-period expiration removes a key antitrust hurdle for the Olin–Huntsman all-stock merger, though other approvals are still pending.
Rhea-AI Summary
Olin (OLN) and Huntsman (HUN)/b) report that the waiting period under the U.S. Hart-Scott-Rodino Antitrust Improvements Act for their proposed merger of equals has expired.This expiration fulfills one of the key closing conditions for the pending transaction. Shareholders of both companies had already overwhelmingly approved the merger on August 25, 2026. Completion of the deal is still contingent on customary closing conditions, including additional regulatory approvals that are in progress.
Olin is described as a vertically integrated global chemical manufacturer and a leading U.S. ammunition producer, while Huntsman is a global diversified chemicals manufacturer with approximately $6 billion in 2025 revenues from continuing operations, more than 55 facilities in about 25 countries, and about 6,000 associates.
Positive
- HSR Act waiting period expiration removes a key antitrust closing condition
- Shareholders of both Olin and Huntsman overwhelmingly approved the merger on August 25, 2026
- Huntsman generated approximately $6 billion in 2025 revenue from continuing operations
Negative
- Transaction closing still depends on additional regulatory approvals and other customary conditions
Previous Acquisition Reports
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Shareholders approved the merger, leaving regulatory approvals and customary closing conditions outstanding.
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SEC declared the Form S-4 effective, advancing the merger toward shareholder meetings.
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Companies agreed to an all-stock merger of equals targeting identified synergies and cash tax benefits.
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
Key Terms
hart-scott-rodino antitrust improvements act regulatory
merger of equals financial
AI-generated analysis. How Rhea-AI works. Not financial advice.
As previously announced, on August 25, 2026, shareholders of both companies overwhelmingly approved the transaction. The closing of the transaction remains subject to satisfaction of certain customary closing conditions, including receipt of additional regulatory approvals, which are underway.
About Olin
Olin Corporation is a leading vertically integrated global manufacturer and distributor of chemical products and a leading
Visit www.olin.com for more information on Olin Corporation.
About Huntsman
Huntsman Corporation is a publicly traded global manufacturer and marketer of diversified chemical products with 2025 revenues of approximately
Social Media:
X: www.x.com/Huntsman_Corp
Facebook: www.facebook.com/huntsmancorp
LinkedIn: www.linkedin.com/company/huntsman
Cautionary Statement Regarding Forward-Looking Statements
This communication contains "forward-looking statements". These statements relate to analyses and other information that are based on management's current beliefs, certain assumptions and forecasts made by management, and current expectations, estimates and projections. Such forward-looking statements include statements regarding the proposed combination between Olin and Huntsman, the future results of the combined company and the benefits anticipated to be realized from the proposed combination, the impact of the proposed transaction on the combined company's business, projections as to the amount and timing of synergies and the closing date for the proposed transaction, and other uncertainties and contingencies in connection with the foregoing. The statements contained in this communication that are not statements of historical facts may include "forward looking statements" as defined in the Private Securities Litigation Reform Act of 1995. We have used the words "anticipate," "intend," "may," "expect," "believe," "should," "plan," "outlook," "project," "estimate," "forecast," "optimistic," "target" and variations of such words and similar expressions in this communication to identify such forward-looking statements.
The reader is cautioned not to rely on these forward-looking statements. These statements are based on current expectations of future events. If underlying assumptions prove inaccurate or known or unknown risks or uncertainties materialize, actual results could vary materially from these forward-looking statements. Risks and uncertainties include, but are not limited to: (i) the risk that the proposed transaction may not achieve some or all of the anticipated benefits and that the proposed transaction may not be completed in a timely manner or at all; (ii) the possibility that any or all of the various conditions to the consummation of the proposed transaction may not be satisfied or waived, including the failure to receive any required regulatory approvals from any applicable governmental entities (or any conditions, limitations or restrictions placed on such approvals); (iii) the occurrence of any event, change or other circumstance that could give rise to the termination of the merger agreement relating to the proposed transaction; (iv) the effect of the announcement or pendency of the proposed transaction on Olin's or Huntsman's ability to attract, motivate or retain key executives and associates, their ability to maintain relationships with customers, vendors, service providers and others with whom they do business, or their operating results and business generally; (v) risks related to the proposed transaction diverting management's attention from Olin's and Huntsman's ongoing business operations; (vi) the risk of litigation in connection with the proposed transaction, including resulting expense or delay; (vii) business, industry and operational risks applicable to Olin and/or Huntsman, including (a) sensitivity to economic, business and market conditions in the United States and overseas, including economic instability or a downturn in the sectors served by Olin and/or Huntsman; (b) declines in average selling prices for Olin's and/or Huntsman's products and the supply/demand balance for Olin's and/or Huntsman's products, including the impact of excess industry capacity; (c) unsuccessful execution of Olin's and/or Huntsman's operating models; (d) failure to control costs and inflation impacts or failure to achieve targeted cost reductions; (e) availability of and/or higher-than-expected costs of raw material, energy, transportation, and/or logistics; (f) Olin's and/or Huntsman's reliance on a limited number of suppliers for specified feedstock and services and their reliance on third-party transportation; (g) the occurrence of unexpected manufacturing interruptions and outages, including those occurring as a result of labor disruptions and production hazards; (h) exposure to physical risks associated with climate-related events or increased severity and frequency of severe weather events; (i) the failure or an interruption, including cyber-attacks, of Olin's and/or Huntsman's information technology systems, including risks from the rapid evolution and increased adoption of artificial intelligence technologies that may intensify cybersecurity risks and enable new or augment existing attack techniques and the potential for intellectual property infringement or unintentional disclosure of proprietary or confidential information through artificial intelligence tools; (j) risks associated with Olin's and/or Huntsman's international sales and operations, including economic, political or regulatory changes; (k) weak industry conditions affecting Olin's and/or Huntsman's ability to comply with the financial maintenance covenants in its debt agreements; (l) Olin's and/or Huntsman's indebtedness and debt service obligations; (m) failure to identify, attract, develop, retain and motivate qualified employees throughout the respective organizations and ability to manage executive officer and other key senior management transitions; (n) adverse conditions in the credit and capital markets, limiting or preventing Olin's and/or Huntsman's ability to borrow or raise capital; (o) Olin's and/or Huntsman's inability to complete future acquisitions or joint venture transactions or successfully integrate them into the business; (p) the effects of any declines in global equity markets on asset values and any declines in interest rates or other significant assumptions used to value the liabilities in, and funding of, Olin's and/or Huntsman's pension plans; (q) Olin's and/or Huntsman's long-range plan assumptions not being realized, causing a non-cash impairment charge of long-lived assets; (r) exposure to risks associated with the creditworthiness of Olin's and/or Huntsman's key suppliers, customers and business partners and reductions in demand for their customers' products; (s) failure to develop new products, processes or applications, or failure to keep pace with evolving technological innovations in end-use markets; (t) inability to protect patents and trade secrets or enforce intellectual property rights, particularly in countries where effective intellectual property laws and judicial systems may be unavailable; (u) conflicts, military actions, terrorist attacks, political events, public health crises and general instability, along with increased security regulations, that could adversely affect Olin and/or Huntsman's business; and (v) legal, environmental and regulatory risks, including (a) changes in, or failure to comply with, legislation or government regulations or policies, including changes regarding Olin's and/or Huntsman's ability to manufacture or use certain products and changes within the international markets in which Olin and/or Huntsman operate; (b) new regulations or public policy changes regarding the transportation of hazardous chemicals and the security of chemical manufacturing facilities; (c) unexpected outcomes from legal or regulatory claims and proceedings; (d) costs and other expenditures in excess of those projected for environmental investigation and remediation or other legal proceedings; (e) various risks associated with Olin's Lake City U.S. Army Ammunition Plant contract and performance under other governmental contracts and (f) compliance with data privacy regulations, including the General Data Protection Regulation (GDPR) and other applicable data privacy laws, which could result in substantial fines, penalties and legal liability.
All of Olin's and Huntsman's forward-looking statements should be considered in light of these factors. In addition, other risks and uncertainties not presently known to Olin or Huntsman, or that Olin or Huntsman consider immaterial could affect the accuracy of the forward-looking statements. These statements are not guarantees of future performance and involve certain risks, uncertainties, and assumptions, which are difficult to predict and many of which are beyond the control of Olin and/or Huntsman. Therefore, actual outcomes and results may differ materially from those matters expressed or implied in such forward-looking statements. A further list and descriptions of these risks, uncertainties, and other factors can be found in Olin's filings with the SEC, including its most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q and other filings, available at the website maintained by the SEC at http://www.sec.gov, https://olin.com or on request from Olin and in Huntsman's filings with the SEC, including its most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q and other filings, available at the website maintained by the SEC at http://www.sec.gov, https://www.huntsman.com or on request from Huntsman. Any forward-looking statement made in this release speaks only as of the date of this communication. Neither Olin nor Huntsman undertake any obligation to update publicly any forward-looking statements, or any other information in this release whether as a result of future events, new information or otherwise, or to correct any inaccuracies or omissions in them which become apparent. All forward-looking statements in this communication are qualified in their entirety by this cautionary statement.
2026-12
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SOURCE Olin Corporation; Huntsman Corporation
FAQ
What does the expiration of the Hart-Scott-Rodino waiting period mean for the Olin–Huntsman merger?
The expiration of the HSR Act waiting period means U.S. antitrust authorities did not move to extend the review period for this stage, so one of the key regulatory closing conditions for the proposed merger of equals has been satisfied. The companies state that the merger can only close once remaining customary conditions, including additional regulatory approvals, are completed.
What closing conditions remain before the Olin–Huntsman merger can be completed?
The closing of the transaction is still subject to satisfaction of certain customary closing conditions. These include the receipt of additional regulatory approvals, which the companies report are underway.
How large is Huntsman’s business as described in the announcement?
Huntsman is described as a global manufacturer and marketer of diversified chemical products with approximately $6 billion in 2025 revenues from continuing operations. It operates more than 55 manufacturing, R&D and operations facilities in approximately 25 countries and employs about 6,000 associates within its continuing operations.
What are Olin’s main business activities?
Olin is presented as a vertically integrated global manufacturer and distributor of chemical products and a leading U.S. manufacturer of ammunition. Its chemical portfolio includes chlorine, caustic soda, vinyls, epoxies, chlorinated organics, bleach, hydrogen and hydrochloric acid, while its Winchester segment produces and distributes sporting, law enforcement and small caliber military ammunition, components, industrial cartridges and clay targets.