First Financial Holding Announces Subsidiary's Acquisition of Two Airbus A330-900 Aircraft for Lease to Starlux Airlines

Release Date: June 19, 2026 Statement Date: June 18, 2026 Statement Time: 15:09 Company Code: 2892 Company Name: First Financial Holding Subject: Announcement on behalf of subsidiary First Leasing Co., Ltd. regarding the acquisition of aircraft assets. (Supplement to the announcement dated December 17, 2025) Applicable Clause: Clause 20 Date of Event: June 18, 2026

1. Name and nature of the asset: Airbus A330-900 passenger aircraft.

2. Date of Event: June 18, 2026 ~ June 18, 2026

3. Board approval date: June 18, 2026

4. Other approval dates: Not applicable

5. Quantity of units, unit price, and total transaction amount: Two A330-900 aircraft, each transaction amount not exceeding NT$3.9 billion, total transaction amount not exceeding NT$7.8 billion.

6. Counterparty and its relationship with the company: Counterparty: Starlux Airlines Co., Ltd.

7. If the counterparty is a related party, reason for selection and prior ownership details: Not applicable

8. If the asset was previously owned by a related party within the last five years, disclose acquisition/disposal date, price, and relationship: Not applicable

9. Estimated gain (or loss) on disposal (not applicable for asset acquisition; deferred gains to be itemized): Not applicable

10. Delivery or payment terms (including payment schedule and amounts), contractual restrictions, and other important agreements: Payment terms as stipulated in the transaction contract; ownership held by First Leasing Co., Ltd.

11. Method of transaction decision (e.g., bidding, comparison, negotiation), pricing reference, and decision-making unit: 1. Leased to Starlux Airlines Co., Ltd. under a sale-and-leaseback arrangement. 2. Decision-making unit: Board of Directors of First Leasing Co., Ltd.

12. Name of professional appraisal firm and appraisal value: Not applicable

13. Name of professional appraiser: Not applicable

14. Appraiser license number: Not applicable

15. Whether the appraisal report specifies a limited, special, or fixed price: No or not applicable

16. Whether an appraisal report has not yet been obtained: No or not applicable

17. Reason for not obtaining appraisal report: Not applicable

18. Reasons for significant discrepancies in appraisal results and auditor’s opinion: Not applicable

19. Name of accounting firm: Not applicable

20. Name of accountant: Not applicable

21. Accountant license number: Not applicable

22. Broker and brokerage fees: Not applicable

23. Specific purpose or use of the acquisition or disposal: To be leased to Starlux Airlines Co., Ltd. for operational use.

24. Dissenting opinions from directors regarding the transaction: None.

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

26. Date of supervisor approval or audit committee consent: Not applicable

27. Whether the transaction involves acquiring real estate or right-of-use assets from a related party: No

28. Valuation under Article 16 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies': Not applicable

29. Valuation under Article 17 if the valuation in the previous item is lower than the transaction price: Not applicable

30. Previous date of material information disclosure on the same matter: December 17, 2025

31. Other explanatory matters: The lessee may choose to acquire ownership of the leased asset upon early repayment or at the end of the lease term by paying the agreed amount.