Quanta Announces Board Approval of 2nd Quarter 2026 Consolidated Financial Report

1. Date reported to or resolved by the Board of Directors: 115/08/12 2. Audit Committee approval date: 115/08/12 3. Reporting period for financial statements or self-compiled annual financial information Start and end dates (XXX/XX/XX~XXX/XX/XX): 115/01/01~115/06/30 4. Cumulative operating revenue from January 1 to end of current period (in thousands NTD): 34,331,720 5. Cumulative operating gross profit (loss) from January 1 to end of current period (in thousands NTD): 1,756,329 6. Cumulative operating income (loss) from January 1 to end of current period (in thousands NTD): 1,013,798 7. Cumulative pre-tax net profit (loss) from January 1 to end of current period (in thousands NTD): 1,109,986 8. Current period net profit (loss) from January 1 to end of current period (in thousands NTD): 765,875 9. Net profit (loss) attributable to owners of parent from January 1 to end of current period (in thousands NTD): 771,271 10. Basic earnings per share (loss) from January 1 to end of current period (NTD): 3.28 11. Total assets at end of period (in thousands NTD): 22,973,937 12. Total liabilities at end of period (in thousands NTD): 17,135,057 13. Equity attributable to owners of parent at end of period (in thousands NTD): 5,639,115 14. Other matters to be disclosed: None.