Chun An: Cancellation of the Company's 10th Treasury Stock Repurchase in Accordance with Article 28-2 of the Securities and Exchange Act (Updated Subject)

1. Date of board resolution: 2026/05/08 2. Reason for capital reduction: To cancel the company's 10th repurchase of treasury shares in accordance with Article 28-2 of the Securities and Exchange Act. 3. Amount of capital reduction: NT$14,000,000 4. Number of shares to be canceled: 1,400,000 shares 5. Capital reduction ratio: 0.9397% 6. Capital after capital reduction: 147,581,343 shares 7. Scheduled date of shareholders' meeting: Not applicable. 8. Expected number of common shares listed after the capital reduction of new shares: Not applicable. 9. Ratio of expected number of common shares listed after the capital reduction of new shares to total outstanding common shares after capital reduction (number of listed common shares after capital reduction / total outstanding common shares after capital reduction): Not applicable. 10. For cases where the expected number of listed common shares after capital reduction in the preceding two items is less than 60 million shares and less than 25%, please explain the measures to address low equity liquidity: None. 11. Capital reduction record date: 2026/06/26 12. Other matters that should be specified: None.