[MediaTek] Announcement on behalf of subsidiary MEDIATEK USA INC. regarding the acquisition of right-of-use assets

1. Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): San Jose Office, California, USA, located at: Santa Clara Gateway – Building 2 5453 Great America Parkway, Santa Clara, CA 95054 2. Date of occurrence of the event: April 17, 2026 ~ April 17, 2026 3. Date of board of directors resolution: April 17, 2026 4. Other decision date: Not applicable 5. Transaction volume (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Transaction volume: 110,979 sq. ft. (equivalent to approx. 3,118 ping) Unit price: Monthly rent of US$3.70 per sq. ft. Monthly rent: US$410,622.30, with a 3% annual rent increase. Total amount of right-of-use asset: US$41,559,651.94 6. Counterparty and its relationship to the company (if the counterparty is a natural person and not a related party of the company, the name may be withheld): Counterparty: Santa Clara Gateway I LLC. Relationship: Non-related party 7. Where the counterparty is a related party, announcement shall also be made of the reason for choosing the related party as the trading counterpart, the identity of the previous owner, its relationship with the company and the trading counterpart, the date of the previous transfer, and the transfer amount: Not applicable 8. Where the owner of the subject matter within the past five years has been a related party of the company, announcement shall also be made of the dates and prices of acquisition and disposal by the related party, and the related party's relationship to the company at the time of the transaction: Not applicable 9. Projected gain (or loss) through disposal (not applicable for acquisition of assets) (those deferred should be tabulated for recognition status): Not applicable 10. Terms of delivery or payment (including payment period and amount), restrictive covenants in the contract, and other important stipulations: Payment terms: Monthly payment of US$410,622.30, 3% annual rent increase. Lease period from commencement date: Sept 1, 2027 ~ Aug 31, 2037 Restrictive covenants and other important stipulations: None 11. The manner of deciding on this transaction (such as tender invitation, price comparison, or price negotiation), the reference basis for the decision on price, and the decision-making unit: Manner of deciding on this transaction and reference basis for price: 1) Price negotiation based on regional market rates 2) Appraisal report issued by professional appraisers. Decision-making unit: Board of Directors of MEDIATEK USA INC. 12. Name of the professional appraisal firm or company and its appraisal amount: 1. Cushman & Wakefield, Inc.: US$41,542,811 2. Baker Tilly Advisory Group, LP: US$41,585,441 13. Name of the professional appraiser: 1. Justin Glasser 2. Christopher Thenemann 14. Practice certificate number of the professional appraiser: 1. ASA #106380 2. AG 043941 15. Is the appraisal report for a limited price, specific price, or special price: No or not applicable 16. Has an appraisal report not yet been obtained: No or not applicable 17. Reason for not yet obtaining an appraisal report: Not applicable 18. Reason for any significant discrepancy with the appraisal results and opinion of the CPA: Not applicable 19. Name of the CPA firm: Not applicable 20. Name of the CPA: Not applicable 21. Practice certificate number of the CPA: Not applicable 22. Broker and brokerage fee: Not applicable 23. Concrete purpose or use of the acquisition or disposal: Company operational needs 24. Any dissenting opinions of directors to the present transaction: None 25. Is this transaction a related-party transaction: No 26. Date of approval by supervisors or board of independent directors: Not applicable 27. Does this transaction involve acquiring real estate or its right-of-use asset from a related party: No 28. Appraised price evaluated pursuant to Article 16 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies": Not applicable 29. Where the appraised price evaluated pursuant to the preceding article is lower than the transaction price, the price evaluated pursuant to Article 17 of the same Regulations: Not applicable 30. Date of previous major announcement regarding the same event: Not applicable 31. Other matters to be specified: None