[Chuang Kong] Announcement of the Company's Ex-Dividend Record Date

1. Date of the resolution by the board of directors, shareholders' meeting or company decision: 2026/05/15 2. Type of ex-rights or ex-dividend (please enter "ex-rights", "ex-dividend", or "ex-rights and ex-dividend"): ex-dividend 3. Type and amount of dividends to be distributed on ordinary shares: Cash dividend on ordinary shares NT$67,222,200, distributing NT$1 per share. 4. Ex-rights (ex-dividend) trading date: 2026/06/01 5. Last transfer date: 2026/06/02 6. Starting date for suspension of share transfer: 2026/06/03 7. Ending date for suspension of share transfer: 2026/06/07 8. Ex-rights (ex-dividend) record date: 2026/06/07 9. Final date for bond conversion application: Not applicable 10. Starting date for suspension of bond conversion: Not applicable 11. Ending date for suspension of bond conversion: Not applicable 12. Date of cash dividend payment for ordinary shares: 2026/06/29 13. Any other matters that need to be specified: None