[CTBC] Subsidiary CTBC Bank Announces Board Resolution to Issue Unsecured Senior Financial Bonds up to 6 Billion USD

1. Date of Board Resolution: May 22, 2026 2. Name: Unsecured Senior Financial Bonds (subject to actual issuance terms). 3. Whether Shelf Registration is Adopted: No. 4. Total Issuance Amount: To be issued within the revolving quota during the 10-year period following approval, depending on market conditions. 5. Face Value per Unit: Subject to market conditions at the time of issuance and relevant regulations. 6. Issue Price: Subject to market conditions. 7. Issuance Period: Maximum 40 years. 8. Interest Rate: Subject to market conditions; may be fixed, floating, zero-coupon, etc. 9. Collateral: None. 10. Use of Proceeds: To support lending and investment businesses and ensure liquidity. 11. Underwriting Method: Subject to market conditions. 12. Trustee: Not applicable. 13. Underwriting or Sub-underwriting Institution: Subject to market conditions. 14. Guarantor: None. 15. Paying Agent: Handled by the bank or a designated paying agent. 16. Certification Institution: Subject to market conditions. 17. Conversion Method: Not applicable. 18. Redemption Conditions: Subject to market conditions. 19. Call Provisions: Subject to market conditions. 20. Conversion/Exchange Basis Date: Not applicable. 21. Dilution of Equity: Not applicable. 22. Other Matters: The revolving issuance includes links to various derivative financial products.