EVA Air Announces Purchase of Five LEAP-1A30S Backup Engines

Release Date: August 14, 2026 Statement Date: August 13, 2026 Statement Time: 15:18:24 Company Code: 2618 Company Name: EVA Air Subject: Announcement of the Purchase of Five LEAP-1A30S Backup Engines Relevant Clause: Clause 20 Factual Date: August 13, 2026

1. Name and Nature of the Subject Asset (e.g., land located in Section XX, Subsection XX, North District, Taichung City): LEAP-1A30S backup engines

2. Factual Date: August 13, 2026 ~ August 13, 2026

3. Board Approval Date: August 13, 2026

4. Other Approval Dates: Not applicable

5. Quantity of Units, Unit Price, and Total Transaction Amount: Quantity: 5 units Total Transaction Amount: Not exceeding USD 131 million

6. Counterparty and Relationship with the Company (If the counterparty is a natural person and not a related party of the company, name disclosure may be omitted): Counterparty: CFM International Inc. Relationship with the Company: None

7. If the counterparty is a related party, state the reason for selection, previous owner, relationship among previous owner, company, and counterparty, transfer date, and amount: Not applicable

8. If the asset’s owner within the past five years was a related party of the company, state the date, price, and relationship at the time of acquisition and disposal: Not applicable

9. Estimated Gain (or Loss) on Disposal (Not applicable for asset acquisition) (For deferred gains, provide a table showing recognition): Not applicable

10. Delivery or Payment Terms (including payment schedule and amounts), Contractual Restrictions, and Other Important Agreements: Delivery or Payment Terms: As per contract Contractual Restrictions and Other Important Agreements: None

11. Method of Transaction Decision (e.g., bidding, comparison, negotiation), Basis for Price Determination, and Decision-Making Unit: Decision Method: Negotiation Basis for Price Determination: Market price Decision-Making Unit: Board of Directors

12. Name of Professional Appraisal Firm or Company and Appraised Value: Not applicable

13. Name of Professional Appraiser: Not applicable

14. License Number of Professional Appraiser: Not applicable

15. Whether the Appraisal Report is for a Limited, Specific, or Special Price: No or Not applicable

16. Whether Appraisal Report Has Not Yet Been Obtained: No or Not applicable

17. Reason for Not Obtaining Appraisal Report: Not applicable

18. Reasons for Significant Differences in Appraisal Results and Auditor's Opinion: Not applicable

19. Name of Accounting Firm: Not applicable

20. Name of Auditor: Not applicable

21. License Number of Auditor: Not applicable

22. Broker and Brokerage Fees: Not applicable

23. Specific Purpose or Use of the Acquisition or Disposal: Operational needs

24. Dissenting Director's Opinion on the Transaction: None

25. Whether the Transaction is a Related-Party Transaction: No

26. Date of Supervisor Approval or Audit Committee Consent: August 13, 2026

27. Whether the Transaction Involves Acquiring Real Estate or Right-of-Use Assets from a Related Party: No

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

29. Valuation Price under Article 17 if the Price under the Previous Item is Lower than the Transaction Price: Not applicable

30. Previous Date of Material Information Disclosure for the Same Event: Not applicable

31. Other Explanatory Matters: None