Scientech Corporation Changes Record and Payment Dates for Cash Dividend

1. Date of resolution by the board of directors, shareholders' meeting, or company decision: 2026/05/18 2. Type of ex-rights or ex-dividend (please fill in "ex-rights", "ex-dividend", or "ex-rights & ex-dividend"): ex-dividend 3. Type and amount of dividend for common stock: Cash dividend of NT$481,987,560, NT$6 per share 4. Ex-rights (ex-dividend) trading date: 2026/07/30 5. Last transfer date: 2026/08/02 6. Book closure starting date: 2026/08/03 7. Book closure ending date: 2026/08/07 8. Ex-rights (ex-dividend) record date: 2026/08/07 9. Last application date for bond conversion: Not applicable 10. Bond conversion suspension starting date: Not applicable 11. Bond conversion suspension ending date: Not applicable 12. Cash dividend payment date for common stock: 2026/08/28 13. Other matters to be specified: As the last transfer date (2026/8/2) falls on a holiday, please complete over-the-counter transfers by 2026/7/31.