【THSRC】Announcement Regarding the Distribution of 2024 Cash Dividends in 2026

1. Date of Board/Shareholders' Meeting resolution or company decision: 2026/06/17 2. Type of Ex-rights/dividend: Ex-dividend 3. Type and amount of common stock dividends: NT$1.15 per share in cash dividends, distributed based on the shareholder register on the ex-dividend record date. Total distribution amounts to NT$6,472,537,017. Amounts are rounded down to the nearest integer; fractional amounts are recorded as other income. 4. Ex-rights (dividend) trading date: 2026/07/14 5. Last transfer date: 2026/07/15 6. Transfer suspension start date: 2026/07/16 7. Transfer suspension end date: 2026/07/20 8. Ex-rights (dividend) record date: 2026/07/20 9. Last conversion application date for bonds: N/A 10. Bond conversion suspension start date: N/A 11. Bond conversion suspension end date: N/A 12. Payment date for common stock cash dividends: 2026/08/13 13. Other remarks: (1) The distribution of 2024 surplus was approved at the annual shareholders' meeting on May 27, 2026. (2) If dates must be changed due to objective environmental factors, the Chairman is authorized to handle the adjustments.