OLN: Company disclosure

Item 7.01 Regulation FD Disclosure On June 16, 2026, Olin Corporation, a Virginia corporation (“ Olin ”), and Huntsman Corporation, a Delaware corporation (“ Huntsman ”), issued a joint press release to announce the proposed combination of Olin and Huntsman in an all-stock merger of equals transaction pursuant to an Agreement and Plan of Merger entered into on June 15, 2026. A copy of the press release is attached hereto as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. Additionally, on June 16, 2026, Olin and Huntsman issued a joint investor presentation, a copy of which is attached hereto as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference. The information in this Item 7.01, including Exhibits 99.1 and 99.2, is being “furnished” to the U.S. Securities and Exchange Commission (the “ SEC ”) and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference into any filing made by Olin under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by a specific reference in such filing. Additional Information and Where to Find It This Current Report on Form 8-K 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 intend to file relevant materials with the SEC, including, among other filings, an Olin registration statement on Form S-4 in connection with the proposed issuance of shares of Olin’s common stock pursuant to the proposed transaction, which For