【Hiwin Mikrosystem】Announcement of the Company's 2026 First Quarter Consolidated Financial Report Approved by the Board of Directors

1. Date of submission to the board of directors or resolution by the board of directors: 115/05/08 2. Date of approval by the audit committee: 115/05/08 3. Reporting period for financial statements or unaudited financial information (XXX/XX/XX~XXX/XX/XX): 115/01/01~115/03/31 4. Cumulative operating revenue from January 1 to the current period (in thousands of NTD): 855,045 5. Cumulative operating gross profit (loss) from January 1 to the current period (in thousands of NTD): 333,579 6. Cumulative operating income (loss) from January 1 to the current period (in thousands of NTD): 142,385 7. Cumulative pre-tax net profit (loss) from January 1 to the current period (in thousands of NTD): 156,336 8. Cumulative net profit (loss) for the current period from January 1 to the current period (in thousands of NTD): 130,888 9. Cumulative net profit (loss) attributable to owners of the parent company from January 1 to the current period (in thousands of NTD): 115,509 10. Basic earnings (loss) per share at the end of the period (in NTD): 0.96 11. Total assets at the end of the period (in thousands of NTD): 7,172,640 12. Total liabilities at the end of the period (in thousands of NTD): 2,677,573 13. Equity attributable to owners of the parent company at the end of the period (in thousands of NTD): 4,137,812 14. Other matters that should be specified: None.