CTBC Holding Announces Subsidiary CTBC Bank's Acquisition of Initial Public Offering Shares of Hanmin Testing Systems Co., Ltd. (Supplement to 9/8 Announcement)

1. Name and nature of the subject matter (for preferred shares, specify issuance conditions such as dividend rate): Ordinary shares of Hanmin Testing Systems Co., Ltd.

2. Date on which the fact occurred: 115/9/11 ~ 115/9/11

3. Board approval date: Not applicable

4. Other approval dates: Approval level: CEO approval September 8, 115 (Republic of China calendar)

5. Number of trading units, unit price, and total transaction amount: Transaction quantity: 23,000 shares Unit price: NT$4,174.13 Total transaction amount: NT$96,005,000 (excluding fees, etc.)

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party of the company, name disclosure may be omitted): Counterparty: Hanmin Testing Systems Co., Ltd. Relationship with the company: None

7. If the counterparty is a related party, disclose the reason for selecting the related party as the transaction party, the previous transferor, the relationship among the previous transferor, 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, disclose the date of acquisition and disposal, price, and the relationship with the company at the time of the transaction: Not applicable

9. Matters related to the disposal of claims (including types of collateral attached to the disposed claim; if the disposed claim is to a related party, disclose the name of the related party and the book value of the claim disposed): Not applicable

10. Gain (or loss) from disposal (not applicable for acquisition of securities) (if deferred, list and explain recognition status): Not applicable

11. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Delivery or payment terms: Wire transfer (in accordance with competitive auction rules) Contractual restrictions and other important agreements: None

12. Decision-making method for this transaction, basis for price determination, and decision-making unit: Basis for price determination: Competitive auction based on internal valuation and a fairness opinion issued by Yu Liang-Yuan, CPA, Bosung Accounting Firm Decision-making unit: According to the company's approval authority

13. Net asset value per share of the securities-issuing company acquired or disposed: NT$67.05

14. Cumulative number, amount, ownership percentage, and rights restriction status (e.g., pledge) of the securities involved in this transaction (including this transaction) held to date: (1) Cumulative holding quantity: 23,000 shares (2) Amount: NT$96,005,000 (excluding fees, etc.) (3) Ownership percentage: 0.08% Rights restriction status: No rights restrictions

15. Ratio of securities investments listed in Article 3 of the 'Regulations Governing the Acquisition or Disposition of Assets by Publicly Issued Companies' (including this transaction) to total assets and equity attributable to owners of the parent in the company's most recent financial statements, and the amount of working capital in the most recent financial statements: 26.70%, 370.31%, Not applicable

16. Broker and brokerage fees: None

17. Specific purpose or use of the acquisition or disposal of securities: Financial investment using the bank's own funds in accordance with banking regulations.

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

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

20. Date of auditor confirmation or audit committee approval: Not applicable

21. Whether the accountant issued a non-reasonable opinion for this transaction: No

22. Name of accounting firm: Bosung Accounting Firm

23. Name of accountant: Yu Liang-Yuan

24. Accountant license number: Financial Supervisory Commission Certificate No. 6600

25. Whether it 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: Past year: None Next year: To be determined based on market conditions and the company's strategy

28. Source of funds: Own funds

29. Previous date of material information announcement regarding the same event: September 8, 115 (ROC)

30. Other explanatory matters: None