Exhibit 99.1 January 29, 2026 Dow reports fourth quarter 2025 results FINANCIAL HIGHLIGHTS | | | | Three Months Ended Dec 31 | | | | Three Months Ended Sep 30 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | In millions, except per share amounts | | 4Q25 | 4Q24 | | vs. SQLY | | 3Q25 | vs. PQ | | | | | | | [B / (W)] | | | [B / (W)] | | Net Sales | $| | 9,460$ | 10,405 $| | (945)$ | 9,973 $| (513) | | GAAP Income (Loss), Net of Tax |$ | | (1,477) $| (35)$ | | (1,442) $| 124$ | (1,601) | ...