Olin Corporation and Huntsman Corporation Merger Registration Statement Declared Effective, Shareholder Votes Set for August 25, 2026

SEC Declares Olin-Huntsman Registration Statement Effective, Opening Path to Shareholder Vote

The joint announcement from Olin Corporation, headquartered in Clayton, Missouri, and Huntsman Corporation, headquartered in The Woodlands, Texas, confirmed that the SEC declared their registration statement effective on July 13, 2026. The registration statement, which was originally filed by Olin on July 2, 2026 and subsequently amended on July 10, 2026, forms the foundation for the issuance of Olin common stock in connection with the all-stock transaction. This declaration of effectiveness is a standard but critical procedural step that allows the companies to formally solicit shareholder support.

Alongside the effectiveness announcement, Olin and Huntsman confirmed that mailing of the definitive joint proxy statement and prospectus commenced on July 13, 2026, the same date the registration became effective. Shareholders of record as of the close of business on July 9, 2026 are entitled to vote at their respective special meetings. Both companies also released a supplemental FAQ document on their respective investor relations websites to provide additional context on expected synergies from the proposed transaction.

August 25, 2026 Special Meetings: How Olin and Huntsman Shareholders Will Cast Their Votes

Olin's special shareholder meeting is scheduled for August 25, 2026 at 8:00 a.m. Central Time and will be conducted via live webcast. Huntsman's special meeting is also set for August 25, 2026, beginning at 9:00 a.m. Central Time, and will likewise be held virtually. The staggered timing allows shareholders of each company to participate independently in their own meetings before any crossover interaction.

Both meetings will allow shareholders and stockholders of record, respectively, as of July 9, 2026 to vote on the transaction-related proposals contained in the joint proxy statement and prospectus. The companies have encouraged all eligible voters to carefully review the full definitive joint proxy statement and prospectus, which contains detailed information about the proposed transaction, the parties involved, and the voting procedures applicable to each company's meeting. Free copies of the registration statement and proxy materials are available through the SEC's website as well as the investor relations sections of both companies' websites.

Structure of the All-Stock Merger of Equals Between Olin and Huntsman

The transaction is described in the announcement as an all-stock merger of equals, meaning no cash consideration is changing hands between the two companies at the merger level. Instead, Olin will issue shares of its common stock as the consideration in the transaction, which is why the registration statement filed by Olin was required to register those newly issued shares. The combined entity will operate under the name OlinHuntsman following the completion of the deal.

The filing states that the transaction is expected to create a leading North American chemicals company. In addition to its North American base, the combined OlinHuntsman entity is described as having assets in Europe and Asia, giving it a multinational manufacturing and distribution footprint. The announcement emphasizes that the companies view this combination as generating significant value for shareholders of both Olin and Huntsman across markets and economic cycles, though the ultimate outcome remains subject to closing conditions being satisfied.

More Than $400 Million in Projected Synergies: The Financial Case for the OlinHuntsman Merger

The disclosure projects that the combined company is expected to realize more than $400 million in total cost synergies and integration benefits. Of that total, more than $300 million in annual cost synergies and integration benefits are expected to be achieved by the end of year three following the close of the transaction. Notably, more than 90% of that $300 million figure is expected to be realized within the first 24 months after closing, suggesting a front-loaded synergy capture timeline that management views as achievable given operational overlap between the two businesses.

In addition to the initial synergy package, the disclosure projects more than $100 million in additional raw material integration benefits beginning in 2031. These later-stage benefits are tied to the vertical integration logic of the transaction, particularly the combination of Olin's upstream manufacturing and feedstock capabilities with Huntsman's downstream products and formulation expertise. The combined company is also expected to generate revenue synergies through vertical integration, though specific revenue synergy figures were not broken out separately in the announcement beyond the qualitative description provided.

Vertical Integration and the Strategic Rationale Behind OlinHuntsman's Chemical Value Chain Vision

The disclosure articulates a strategic rationale centered on capturing value across the full chemical value chain, described as running from upstream inputs such as electricity and salt through to downstream products serving a broad range of end markets. These include aerospace, automotive, electronics, alternative energy, composites, construction, and consumer markets. The companies argue that this end-to-end positioning differentiates OlinHuntsman structurally within the chemical industry.

The announcement also highlights enhanced geographic diversification as a core element of the strategic case. By combining complementary portfolios with a footprint spanning the U.S. Gulf Coast, Europe, and Asia, the combined company is described as being better positioned to capitalize on regional sector dynamics and serve customers across key global markets. The companies further state that the combined entity is expected to be a low-cost producer with the scale and feedstock positioning needed to drive stronger profitability across different points in the economic cycle.

Capital Allocation Priorities for OlinHuntsman Following Transaction Close

The announcement outlines a set of capital allocation commitments that the combined company is expected to prioritize following the close of the transaction. These include near-term deleveraging, a stable dividend policy, and the deployment of future excess cash toward shareholder returns as well as high-return organic and inorganic growth projects. This framework reflects a conservative financial posture in the immediate post-merger period, with deleveraging placed explicitly at the top of the priority list.

The emphasis on deleveraging suggests that combining two large publicly traded chemical companies will involve taking on or inheriting a meaningful debt load that management intends to address in the near term before deploying capital more aggressively. The broader objective, as framed in the disclosure, is improving profitability, earnings, and cash flow generation through the economic cycle in ways that neither company could achieve independently. The company did not disclose specific leverage targets or debt figures in this announcement.

Ken Lane and Peter Huntsman Comment on the Merger Milestone

Ken Lane, President and Chief Executive Officer of Olin, was quoted in the announcement stating that having an effective registration statement marks an important milestone in bringing the two companies together. Lane noted that the company looks forward to engaging with both sets of shareholders to highlight the value the transaction is expected to generate. He also referenced what the filing describes as greater financial benefits that would be delivered if the transaction is completed as a direct merger, and expressed confidence in achieving the synergy targets disclosed when the transaction was originally announced.

Peter Huntsman, Chairman, President and Chief Executive Officer of Huntsman, was also quoted in the announcement expressing encouragement over the progress made in advancing the proposed merger and crediting the hard work and dedication of teams across both companies. He described the collaboration demonstrated throughout the process as supportive of a successful closing and highlighted the expectation that value would be unlocked for shareholders of both companies. Neither executive's comments included specific financial figures beyond those already disclosed in the body of the announcement.

Regulatory Approvals and Customary Closing Conditions Still Required Before Merger Completes

Despite the SEC declaring the registration statement effective, the transaction has not yet closed and remains conditional. The disclosure states that completion of the transaction is subject to satisfaction of customary closing conditions, which include receipt of required regulatory approvals and approval of the transaction by both Olin shareholders and Huntsman stockholders. The companies have targeted completion in the first half of 2027, though no more specific date has been provided within the announcement.

The requirement for regulatory approvals is a standard feature of large mergers between publicly traded companies, and investors should be aware that the timeline to close may be affected by the pace of regulatory review across relevant jurisdictions. The announcement does not specify which regulatory bodies have already provided clearance or which approvals remain outstanding. The record date of July 9, 2026 and the August 25, 2026 voting dates represent the next formal milestones before the transaction can proceed further.

About Olin Corporation and Huntsman Corporation: Two Chemical Giants Combining Forces

Olin Corporation is described in the disclosure as a leading vertically integrated global manufacturer and distributor of chemical products and a leading U.S. manufacturer of ammunition. Its chemical products include chlorine and caustic soda, vinyls, epoxies, chlorinated organics, bleach, hydrogen, and hydrochloric acid. Through its Winchester division, Olin also produces and distributes sporting ammunition, law enforcement ammunition, reloading components, small caliber military ammunition, industrial cartridges, and clay targets.

Huntsman Corporation is described as a publicly traded global manufacturer and marketer of diversified chemical products with 2025 revenues of approximately $6 billion from its continuing operations. The company operates more than 55 manufacturing, research and development, and operations facilities across approximately 25 countries and employs approximately 6,000 associates within its continuing operations. Huntsman's chemical products number in the thousands and are sold worldwide to manufacturers serving a broad and diverse range of consumer and industrial end markets, making it a complementary fit with Olin's upstream chemical manufacturing capabilities.