【ASE Technology Holding Co., Ltd.】Announcement of the Board of Directors' Resolution to Approve the Company's Q1 2026 Consolidated Financial Report

1. Date of Board of Directors' resolution: 2026/05/12 2. Date of Audit Committee's approval: 2026/05/12 3. Reporting period of financial report or self-compiled financial information for the year from (YYY/MM/DD) to (YYY/MM/DD): 2026/01/01~2026/03/31 4. Cumulative operating revenue from January 1 to the current period (in thousands of NTD): 173,662,152 5. Cumulative operating gross profit (loss) from January 1 to the current period (in thousands of NTD): 34,849,839 6. Cumulative operating income (loss) from January 1 to the current period (in thousands of NTD): 17,531,793 7. Cumulative net profit (loss) before tax from January 1 to the current period (in thousands of NTD): 18,200,253 8. Cumulative net profit (loss) for the current period from January 1 to the current period (in thousands of NTD): 14,564,995 9. Cumulative net profit (loss) attributable to owners of the parent from January 1 to the current period (in thousands of NTD): 14,147,537 10. Cumulative basic earnings per share (loss) from January 1 to the current period (in NTD): 3.24 11. Total assets at period-end (in thousands of NTD): 957,527,444 12. Total liabilities at period-end (in thousands of NTD): 576,383,490 13. Equity attributable to owners of the parent at period-end (in thousands of NTD): 350,617,392 14. Other matters to be specified: None