Exhibit 99.01 Eastman Announces Third-Quarter 2025 Financial Results KINGSPORT, Tenn., November 3, 2025 – Eastman Chemical Company (NYSE:EMN) announced its third-quarter 2025 financial results. | (In millions, | except | per | share | amounts; | unaudited) | 3Q2025 | 3Q2024 | | --- | --- | --- | --- | --- | --- | --- | --- | | Sales | revenue | | | | | $2,202 |$2,464 | | Earnings | before | interest | and | taxes ("EBIT") | | 188 | 329 | | Adjusted | EBIT* | | | | | 210 | 366 | | Earnings | per diluted | | ...