Yongqing: Announcement of the company's board of directors passing the Q1 2026 consolidated financial report

1. Date of report to the board or resolution by the board: 115/04/29 (April 29, 2026) 2. Date of audit committee approval: 115/04/29 (April 29, 2026) 3. Reporting period for financial report or annual self-reported financial information Start and end dates (XXX/XX/XX~XXX/XX/XX): 115/01/01~115/03/31 (January 1, 2026 ~ March 31, 2026) 4. Accumulated operating revenue from January 1 to the current period (in thousands of NTD): 8,891,334 5. Accumulated operating gross profit (loss) from January 1 to the current period (in thousands of NTD): 1,101,342 6. Accumulated operating income (loss) from January 1 to the current period (in thousands of NTD): 694,694 7. Accumulated net profit (loss) before tax from January 1 to the current period (in thousands of NTD): 674,736 8. Accumulated net profit (loss) for the current period from January 1 to the current period (in thousands of NTD): 539,786 9. Accumulated net profit (loss) attributable to owners of the parent company from January 1 to the current period (in thousands of NTD): 539,786 10. Accumulated basic earnings per share (loss) from January 1 to the current period (in NTD): 7.68 11. Total assets at period-end (in thousands of NTD): 12,300,864 12. Total liabilities at period-end (in thousands of NTD): 7,550,202 13. Equity attributable to owners of the parent company at period-end (in thousands of NTD): 4,750,662 14. Other matters that should be stated: None