【微矽電子-創】Announcement of Ex-Dividend Record Date

1. Date of board/shareholders' resolution or company decision: 2026/05/28. 2. Type of ex-rights/ex-dividend: Ex-dividend. 3. Type and amount of common stock dividends: Cash dividend of NT$103,053,000. 4. Ex-dividend trading date: 2026/06/17. 5. Last transfer date: 2026/06/21. 6. Start date of suspension of transfer: 2026/06/22. 7. End date of suspension of transfer: 2026/06/26. 8. Ex-dividend record date: 2026/06/26. 9. Last application date for bond conversion: N/A. 10. Start date of suspension of bond conversion: N/A. 11. End date of suspension of bond conversion: N/A. 12. Payment date of common stock cash dividends: 2026/07/15. 13. Other matters: Since the last transfer date falls on a holiday, shareholders are requested to complete the transfer procedures by the previous business day (2026/06/18).