Olin与Huntsman此前宣布的全股票对等合并S-4注册声明生效并确定8月25日股东会

Special Meetings of Olin Shareholders and Huntsman Stockholders Scheduled for August 25,   2026

CLAYTON, Missouri and THE WOODLANDS, Texas , July 14, 2026 /PRNewswire/ -- Olin Corporation (NYSE: OLN) ("Olin") and Huntsman Corporation (NYSE: HUN) ("Huntsman") today announced that on July 13, 2026, the U.S. Securities and Exchange Commission declared effective the registration statement on Form S-4 (the "Registration Statement") filed by Olin in connection with the previously announced all-stock merger of equals (the "Transaction") to form a combined company, OlinHuntsman. The companies have also released a supplemental FAQ which contains further details regarding the synergies expected to be achieved from the Transaction. The supplemental FAQ can be found on both Olin's and Huntsman's investor relations websites.

The Transaction will create a leading North American chemicals company and combined with assets in Europe and Asia, OlinHuntsman is expected to generate significant value for shareholders of both companies. Together, Olin and Huntsman will benefit from vertical integration, enhanced scale, scope and expanded chlorine optionality to better serve customers and create value for shareholders across markets and cycles. The combined company is expected to:

Realize more than $400 million of cost synergies and integration benefits, including (1) more than $300 million of annual cost synergies and integration benefits expected to be achieved by the end of year three, with more than 90% of that total expected within the first 24 months following the closing of the Transaction and (2) more than $100 million of additional raw material integration benefits beginning in 2031;

Generate revenue synergies through vertical integration by combining complementary upstream and downstream capabilities, including Olin's manufacturing and feedstock capabilities with Huntsman's downstream products and formulation expertise, enabling OlinHuntsman to grow with customers at multiple points in the value chain, utilize lower-cost producer economics to drive value globally, and improve margins and cash flow through a more efficient operating model;

Capture value and margin across the full chemical value chain , from upstream inputs like electricity and salt through to downstream products serving aerospace, automotive, electronics, alternative energy, composites, construction and consumer markets;

Combine complementary portfolios with an enhanced geographic footprint across the U.S. Gulf Coast, Europe and Asia , enabling OlinHuntsman to capitalize on regional sector dynamics and better serve customers across key markets;

Be structurally differentiated within the chemical industry as a low-cost producer with the scale and feedstock positioning to drive stronger profitability and margin improvement across market cycles, creating a more resilient and profitable combined company than either business on a standalone basis; and

Improve profitability, earnings and cash flow generation through the cycle , supporting disciplined capital allocation focused on near-term deleveraging, a stable dividend policy and the deployment of future excess cash toward shareholder returns and high-return organic and inorganic growth projects.

"Having an effective registration statement on file marks an important milestone in bringing Olin and Huntsman together," said Ken Lane, President and Chief Executive Officer of Olin. "We look forward to continuing to engage with both sets of shareholders to highlight the significant value this transaction will generate, including the greater financial benefits that will be delivered if the transaction is completed as a direct merger. Our teams are working very well together to build momentum toward closing. This underpins our confidence in achieving the significant synergy targets we shared when we announced the transaction, delivering long-term shareholder value across the chemical value chain as one company."

"We are very encouraged by the progress made to advance our proposed merger of equals and are working to complete the transaction as soon as possible, thanks to the hard work and dedication of teams across both companies," said Peter Huntsman, Chairman, President and Chief Executive Officer of Huntsman. "The collaboration demonstrated throughout this process will support a successful closing and unlock significant value for both companies and our shareholders."

As disclosed in the definitive joint proxy statement, the companies have also announced the dates for each special meeting of their respective shareholders and stockholders. Olin's special meeting will be held on August 25, 2026 at 8:00 a.m., Central Time, via live webcast at https://register.proxypush.com/OLN , and Huntsman's special meeting will be held on August 25, 2026 at 9:00 a.m., Central Time, via live webcast at https://virtualshareholdermeeting.com/HUN2026SM . Shareholders and stockholders of record, as applicable, as of the close of business on July 9, 2026 are entitled to vote at the respective meeting. Further information about the special meetings and associated voting procedures are contained in the definitive joint proxy statement/prospectus which is a part of the Registration Statement, and Olin shareholders and Huntsman stockholders are encouraged to carefully review such information.

Completion of the Transaction, which is expected to occur in the first half of 2027, is subject to the satisfaction of customary closing conditions, including receipt of required regulatory approvals and approval of the Transaction by both Olin shareholders and Huntsman stockholders.

About Olin

Olin Corporation is a leading vertically integrated global manufacturer and distributor of chemical products and a leading U.S. manufacturer of ammunition. The chemical products produced include chlorine and caustic soda, vinyls, epoxies, chlorinated organics, bleach, hydrogen, and hydrochloric acid. Winchester's principal manufacturing facilities produce and distribute sporting ammunition, law enforcement ammunition, reloading components, small caliber military ammunition and components, industrial cartridges, and clay targets.

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 $6 billion from 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. Huntsman operates more than 55 manufacturing, R&D and operations facilities in approximately 25 countries and employs approximately 6,000 associates within its continuing operations. For more information about Huntsman, please visit the company's website at www.huntsman.com .

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Additional Information and Where to Find It

This communication may be deemed to be solicitation material in respect of the proposed transaction between Olin and Huntsman. In connection with the proposed transaction, Olin and Huntsman have filed and intend to file relevant materials with the United States Securities and Exchange Commission (the "SEC"), including, among other filings, an Olin registration statement on Form S-4, as filed on July 2, 2026 and as amended on July 10, 2026 (the "Form S-4"), in connection with the proposed issuance of shares of Olin's common stock pursuant to the proposed transaction, which Form S-4 contains a joint proxy statement/prospectus of Olin and Huntsman. The registration statement was declared effective by the SEC on July 13, 2026 and Olin filed a prospectus and each of Olin and Huntsman filed a definitive proxy statement, respectively, and commenced mailing the definitive joint proxy statement/prospectu