[TSMT] Announcement of Dividend Record Date for 2026

1. Date of Board of Directors, Shareholders Meeting resolution or company decision: 2026/06/17 2. Type of ex-rights/dividend (please fill in "ex-rights", "ex-dividend" or "ex-rights and dividend"): Ex-dividend 3. Type and amount of cash dividend for common shares: Cash dividend of 1,608,190,942 TWD (5.5 TWD per share) 4. Ex-rights (dividend) trading date: 2026/07/09 5. Last transfer date: 2026/07/10 6. Start date of suspension of transfer: 2026/07/11 7. End date of suspension of transfer: 2026/07/15 8. Ex-rights (dividend) record date: 2026/07/15 9. Last conversion application date for bonds: Not applicable 10. Start date of conversion suspension for bonds: Not applicable 11. End date of conversion suspension for bonds: Not applicable 12. Cash dividend payment date for common shares: 2026/08/07 13. Other remarks: None.