【UMC】Announcement of Board of Directors' Resolution to Approve Q1 2026 Consolidated Financial Report

1. Date of submission to or resolution by the Board of Directors: 2026/04/29 2. Date of approval by the Audit Committee: 2026/04/29 3. Reporting period of financial report or self-compiled annual financial information (YYY/MM/DD~YYY/MM/DD): 2026/01/01~2026/03/31 4. Cumulative operating revenue from January 1 to the current period (NTD thousands): 61,037,902 5. Cumulative gross profit (gross loss) from January 1 to the current period (NTD thousands): 17,818,490 6. Cumulative operating income (loss) from January 1 to the current period (NTD thousands): 11,276,411 7. Cumulative net profit (net loss) before tax from January 1 to the current period (NTD thousands): 16,643,830 8. Cumulative net profit (net loss) for the current period from January 1 to the current period (NTD thousands): 16,116,984 9. Cumulative net profit (loss) attributable to owners of the parent company from January 1 to the current period (NTD thousands): 16,171,474 10. Cumulative basic earnings per share (loss) from January 1 to the current period (NTD): 1.29 11. Total assets at the end of the period (NTD thousands): 599,931,908 12. Total liabilities at the end of the period (NTD thousands): 193,195,750 13. Equity attributable to owners of the parent company at the end of the period (NTD thousands): 406,700,597 14. Other matters to be specified: Not applicable Keywords: Material Information