CTBC Holding Announces Correction to Loan Asset Transfer by Subsidiary CTBC Bank Originally Announced on June 22, 2026

1. Name and nature of the subject matter (if preferred shares, specify issuance terms such as dividend rate): Financial institution receivables (loans)

2. Date of occurrence: 2026/6/25 ~ 2026/6/25

3. Board approval date: Not applicable

4. Other approval dates: Approval level: Credit Review Committee December 23, 2025

5. Number of trading units, unit price, and total transaction amount: Not applicable Not applicable USD 10,000,000

6. Counterparty and its relationship with the company (if the counterparty is a natural person and not a related party of the company, name disclosure may be omitted): Hua Nan Commercial Bank, Ltd., Offshore Banking Branch (this update) Unrelated party.

7. If the counterparty is a related party, state the reason for selecting the related party as the transaction counterpart, the previous transferee, the relationship among the previous transferee, the company, and the counterparty, the previous transfer date, and the transfer amount: Not applicable

8. If the ownership of the subject matter has been held by a related party of the company within the past five years, state the date of acquisition and disposal by the related party, price, and the relationship with the company at the time of transaction: Not applicable

9. Matters related to the disposal of receivables (including types of collateral attached to the disposed receivables; if any receivables disposed are related-party receivables, state the name of the related party and the book value of the receivables disposed): Not applicable

10. Gain (or loss) from disposal (not applicable if acquiring securities) (if deferred, provide a table showing recognition status): None.

11. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Payment terms: As per contract. Other important agreements: As per contract.

12. Decision-making method for this transaction, reference basis for price determination, and decision-making unit: Approved by the bank’s internal final review unit; relevant terms are based on the contract and general market practices.

13. Net asset value per share of the securities-issuing company acquired or disposed: Not applicable

14. Cumulative holdings (including this transaction) of the securities involved in this transaction, including quantity, amount, ownership percentage, and any restrictions on rights (e.g., pledge status): Not applicable

15. Cumulative securities investments (including this transaction) under Article 3 of the “Regulations on Acquisition or Disposition of Assets by Publicly Issued Companies” as a percentage of the company’s total assets and equity attributable to owners of the parent in the most recent financial statements, and the amount of working capital in the most recent financial statements: Not applicable

16. Broker and brokerage fees: Not applicable

17. Specific purpose or use of the acquisition or disposal: To enhance the liquidity of the loan asset portfolio.

18. Opinions of dissenting directors regarding this transaction: Not applicable

19. Whether this transaction is a related-party transaction: No

20. Date of auditor’s acknowledgment or audit committee’s approval: Not applicable

21. Whether the accountant issued a non-reasonable opinion on this transaction: Not applicable

22. Name of the accounting firm: Not applicable

23. Name of the accountant: Not applicable

24. Accountant’s license number: Not applicable

25. Whether this involves a change in business model: No

26. Explanation of business model change: Not applicable

27. Transaction status with the counterparty in the past year and expected in the next year: Routine business

28. Source of funds: Not applicable

29. Previous date of material information disclosure on the same event: June 22, 2026

30. Other explanatory matters: This transaction is calculated based on the exchange rate of June 21, 2026 (USD 1 = NTD 31.6020).