Dasein Announces Board Resolution on Dividend Record Date and Payment Date for First Half of 2026

1. Date of board, shareholders' meeting resolution or company decision: August 12, 2026 (R.O.C. Year 115) 2. Type of ex-rights/dividend (please enter 'ex-rights', 'ex-dividend', or 'ex-rights-and-dividend'): ex-dividend 3. Ordinary share dividend type and amount: Total cash dividend of NT$198,198,000, NT$2 per share. 4. Ex-dividend trading day: August 27, 2026 5. Last transfer date: August 28, 2026 6. Start date of transfer suspension: August 29, 2026 7. End date of transfer suspension: September 2, 2026 8. Ex-dividend record date: September 2, 2026 9. Final application date for bond conversion: N/A 10. Start date of bond conversion suspension: N/A 11. End date of bond conversion suspension: N/A 12. Ordinary share cash dividend payment date: September 24, 2026 13. Whether part or all of the cash dividend is paid in foreign currency (please enter 'yes' or 'no'): no 14. Foreign currency for cash dividend payment: N/A 15. Recipients of foreign currency cash dividend: N/A 16. Exchange rate determination method for foreign currency dividend: N/A 17. Other matters to be disclosed: None