【CPC】Announcement of Ex-dividend Record Date and Suspension Period for Convertible Bonds

1. Date of board of directors' resolution, shareholders' meeting resolution, or company decision: 2026/05/08 2. Type of dividend (please fill in "ex-right," "ex-dividend," or "ex-right and ex-dividend"): Ex-dividend 3. Type and amount of ordinary share dividend distribution: Total cash dividend of NT$122,865,791 4. Ex-dividend trading date: 2026/06/30 5. Last day for share transfer: 2026/07/01 6. Start date for share transfer suspension: 2026/07/02 7. End date for share transfer suspension: 2026/07/06 8. Ex-dividend record date: 2026/07/06 9. Last date for convertible bond conversion application: 2026/06/08 10. Start date for convertible bond conversion suspension: 2026/06/10 11. End date for convertible bond conversion suspension: 2026/07/06 12. Ordinary share cash dividend payment date: 2026/07/30 13. Other matters that should be specified: If the company's capital stock changes later, affecting the total number of outstanding shares, the chairman is authorized to adjust the distribution ratio based on the total amount proposed for distribution resolved by the board of directors, according to the actual total number of outstanding shares of the company on the ex-dividend record date.