Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: July 31, 2025 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Second Quarter 2025 Earnings Second Quarter Highlights | | | | Three months ended | | | | Six months ended | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | June 30, | | | | June 30, | | | In millions, except per share amounts | 2025 | | | 2024 | | 2025 | | 2024 | | Revenues | $| 1,458 |$ | 1,574 ...