[APC] Announcement of Ex-Dividend Record Date for 114th Fiscal Year Cash Dividend

1. Date of Board of Directors/Shareholders' resolution: 2025/06/17 2. Type of Rights/Dividend: Cash Dividend 3. Dividend type and amount: Cash dividend of 0.2 TWD per share, totaling 118,748,783 TWD. 4. Ex-dividend trading date: 2025/07/23 5. Last transfer date: 2025/07/26 6. Stop transfer start date: 2025/07/27 7. Stop transfer end date: 2025/07/31 8. Record date: 2025/07/31 9. Last bond conversion date: N/A 10. Bond conversion stop start date: N/A 11. Bond conversion stop end date: N/A 12. Cash dividend payment date: 2025/08/21 13. Other: N/A