Exhibit 99.1 Ashland reports financial results1for second quarter fiscal 2024; issues outlook for third quarter and full-year fiscal 2024 • Sales of $575 million, down five percent from the prior-year quarter • Net income (including discontinued operations) of $120 million, or $2.39 per diluted share • Income from continuing operations of $121 million, or $2.40 per diluted share • Adjusted income from continuing operations excluding intangibles amortization expense of $64 million, or $1.27 per diluted share ...