Wistron Subsidiary WIMY Updates Land Lease and Construction Project Budget in Malaysia

1. Contract Type: Land Lease and Commissioned Construction 2. Event Date: June 26, 2026 3. Board Approval Date: June 26, 2026 (Republic of China Year 115) 4. Other Approval Dates: Not applicable 5. Counterparty and Relationship to Company: Not yet determined 6. Main Contract Contents (including total contract value, estimated investment amount, contract period, restrictive clauses, and other important terms): The construction budget for WIMY is adjusted from approximately USD 283.08 million (not exceeding MYR 118,979 million) to approximately USD 324.15 million (not exceeding MYR 134,329 million). 7. Name of Professional Appraisal Firm or Company and Appraisal Result: Not applicable 8. Name of Real Estate Appraiser: Not applicable 9. License Number of Real Estate Appraiser: Not applicable 10. Specific Purpose of Acquisition: To meet business development and strategic planning requirements 11. Dissenting Director Opinions on the Transaction: None 12. Whether the Transaction is a Related-Party Transaction: No 13. Date of Supervisor Approval or Audit Committee Consent: Not applicable 14. Whether the Appraisal Report Contains Limited, Specific, or Special Pricing: No or Not applicable 15. Whether Appraisal Report Has Not Yet Been Obtained: No or Not applicable 16. Reason for Not Obtaining Appraisal Report: Not applicable 17. Reasons for Significant Differences in Appraisal Results and Auditor's Opinion: Not applicable 18. Name of Accounting Firm: Not applicable 19. Name of Auditor: Not applicable 20. Auditor's License Number: Not applicable 21. Previous Material Information Disclosure Date on the Same Event: This is an update to the announcement made on November 11, 2025 (ROC Year 114) regarding WIMY’s land lease and commissioned construction of real estate. 22. Other Disclosures: None