Announcement Regarding Board Resolution for Capital Increase by Cathay Securities, a Subsidiary of Cathay Financial Holdings

1. Date of Board Resolution: June 9, 2026 2. Source of Capital Increase Funds: To be subscribed by the parent company, Cathay Financial Holdings. 3. Whether to adopt a shelf registration for the issuance of new shares (If 'Yes', please also specify the planned issuance period / If 'No'): No 4. Total amount and number of shares to be issued in the entire case (For capital increases through surplus or capital reserves, the number of shares issued does not include those allocated to employees): Total Issuance Amount: NT$5,000,000,000 Total Number of Shares to be Issued: 100,000,000 shares 5. For shelf registration cases, the amount and number of shares issued this time: Not applicable 6. For shelf registration cases, the remaining amount and number of shares after this issuance: Not applicable 7. Par Value Per Share: NT$10 8. Issue Price: NT$50 9. Number of Shares Subscribed by Employees or Amount Allocated: 0 shares 10. Number of Shares for Public Sale: 0 shares 11. Proportion of Subscription or Free Distribution to Existing Shareholders: 100% 12. Method of Handling Fractional Shares and Unsubscribed Shares: None 13. Rights and Obligations of New Shares Issued This Time: Same as existing common shares. 14. Purpose of Capital Increase Funds: To supplement working capital. 15. Reasonableness and Necessity of Raising Capital After Capital Reduction by Cash (Applicable to cases where cash reduction was carried out in the year of fundraising and the preceding year): Not applicable 16. Other Matters to be Noted: None