[Mercuries & Associates] Announcement on Setting the Ex-Dividend Record Date

1. Date of Board of Directors/Shareholders' resolution or company decision: 2026/06/17 2. Type of ex-rights/ex-dividend: Ex-dividend 3. Type and amount of dividends for common shares: Cash dividends from earnings totaling NT$105,707,686 (NT$1.6 per share) 4. Ex-rights (dividend) trading date: 2026/07/06 5. Last transfer date: 2026/07/07 6. Start date of transfer suspension: 2026/07/08 7. End date of transfer suspension: 2026/07/12 8. Ex-rights (dividend) record date: 2026/07/12 9. Last conversion application date for bonds: Not applicable 10. Start date of bond conversion suspension: Not applicable 11. End date of bond conversion suspension: Not applicable 12. Payment date of cash dividends for common shares: 2026/07/31 13. Other matters to be noted: None