[Aurora Optoelectronics] Announcement of the Company's Board Resolution on Ex-dividend Record Date

1. Date of board meeting, shareholders' meeting resolution or company decision: 2026/05/04 2. Type of ex-right or ex-dividend (Please fill in "ex-right", "ex-dividend" or "ex-right and ex-dividend"): Ex-dividend 3. Type and amount of common stock dividend: Cash dividend NT$30,062,225, with NT$0.10 cash dividend distributed per share. 4. Ex-right (ex-dividend) trading date: 2026/05/25 5. Last date for transfer: 2026/05/26 6. Book closure start date: 2026/05/27 7. Book closure end date: 2026/05/31 8. Ex-right (ex-dividend) record date: 2026/05/31 9. Last date for bond conversion application: Not applicable 10. Bond conversion suspension start date: Not applicable 11. Bond conversion suspension end date: Not applicable 12. Common stock cash dividend payment date: 2026/06/16 13. Other matters that should be specified: None.