[CTBC Financial Holding] Announcement by Subsidiary LHFG and its Subsidiary LH Bank Regarding Acquisition of Leasehold Rights for Office Space in Q. House Lumpini Building

1. Name and nature of the target property (e.g., land in Taichung City, North District, XX Section, XX Small Section): 1 Q.House Lumpini Building G,1,3A,4,5,6,32 Fl. South Sathorn Rd., Tungmahamek, Sathorn, Bangkok 10120 2. Date of Factual Occurrence: 115/4/20~115/4/20 3. Board Approval Date: April 20, 115 4. Other Approval Dates: Not applicable 5. Transaction Unit Quantity (e.g., XX sq. meters, convertible to XX ping), Price per Unit, and Total Transaction Amount: Transaction Unit: Total 6,223.70 sq. meters (approx. 1,883 ping) Price per Unit (monthly rent including tax per sqm): GF (Ground Floor) THB 1,092.02, 1st Floor THB 497.034, 3rd Floor A THB 500, Floors 5, 6, and 32 THB 901.33; 4F Employee Cafeteria (monthly): THB 176,109.8, Chiller (per set per month): THB 2,140, Generator (per set per month) THB: 5,000 Total Transaction Amount: THB 163,231,601.92 (approx. NT$ 159,966,979, exchange rate 1:0.98) Total Leasehold Asset: THB 150,503,128.08 (approx. NT$ 147,493,066, exchange rate 1:0.98) 6. Transaction Counterparty and Relationship with the Company (If the counterparty is an individual and not a related party, their name may be omitted): Lessor: Quality Houses Business Complex Leasehold Real Estate Investment Trust Fund Management Institution: Land and Houses Fund Management Co., Ltd. (LH Fund) Property Management Agent: Q.H.International Co.,Ltd. "LH Fund" is a related party to the bank for transactions other than lending as per Article 45 of the Financial Holding Company Act. 7. If the transaction counterparty is a related party, reasons for selecting the related party as the counterparty, previous owner, relationship between the previous owner, the company, and the counterparty, previous transfer date, and transfer amount must also be announced: This case is for the headquarter office space needs of the Thai subsidiary. 8. If the owner of the target property was a related party to the company within the last five years, announcement of the related party's acquisition and disposal dates, prices, and relationship with the company at the time of transaction: Not applicable 9. Estimated Disposal Profit (or Loss) (Not applicable for asset acquisition) (Deferred items should be listed): Not applicable 10. Delivery or Payment Terms (including payment period and amount), contract restrictions, and other important agreements: Floors G, 1, 3A, 4, 5, 6: 2026/10/1~2028/12/31 (2 years 3 months) Floor 32: 2026/7/1~2028/12/31 (2 years 6 months) Total Monthly Rent: THB 5,017,742.98 11. Decision-making method for this transaction (e.g., bidding, price comparison, or negotiation), reference basis for price determination, and decision-making unit: 1. Market report for Bangkok office and retail markets 2. Nearby rental market information Decision-making Unit: Board of Directors of Subsidiary LH Bank 12. Name of Professional Appraisal Firm or Company and its appraisal amount: Not applicable 13. Name of Professional Appraiser: Not applicable 14. Professional Appraiser's License Number: Not applicable 15. Is the appraisal report a limited price, specific price, or special price? No or not applicable 16. Have you obtained the appraisal report yet? No or not applicable 17. Reason for not obtaining the appraisal report: Not applicable 18. When appraisal results have significant differences, reasons for the differences and accountant's opinion: Not applicable 19. Name of accounting firm: Not applicable 20. Name of accountant: Not applicable 21. Accountant's license number: Not applicable 22. Broker and brokerage fee: Not applicable 23. Specific purpose or use of acquisition or disposal: Renewal for subsidiary's business office use 24. Opinion of dissenting directors on this transaction: None 25. Is this transaction a related party transaction? Yes 26. Date of approval by supervisor or audit committee: March 19, 115 27. Is this transaction an acquisition of real estate or leasehold assets from a related party? Yes 28. Price assessed according to Article 16 of the "Regulations Governing Public Issuance Company Acquisitions or Disposals of Assets": Not applicable 29. If the price assessed in the preceding paragraph is lower than the transaction price, the price assessed according to Article 17 of the same regulations: Not applicable 30. Date of previous announcement of material information on the same event: Not applicable 31. Other descriptions: None