Taiwan Mobile's Subsidiary Taiwan Fixed Network Announces Cancellation of Leased Right-of-Use Asset from Taiwan Mobile (Supplementary Announcement)

1. Name and nature of the subject property (e.g., land located at Section XX, Subsection XX, North District, Taichung City): 3rd Floor, No. 2* Jilin Road, Zhongli District, Taoyuan City

2. Date of occurrence: June 30, 2026 ~ June 30, 2026

3. Board approval date: November 12, 2025 (Minguo Year 114)

4. Other approval dates: Approval level: Chairman authorized management department to proceed per internal management regulations June 30, 2026 (Minguo Year 115)

5. Quantity of transaction units (e.g., XX square meters, converted to XX ping), unit price, and total transaction amount: Transaction quantity: 57.51 ping Unit price: NT$450 per ping per month (tax included) Total rental amount: NT$25,880 per month (tax included) Right-of-use asset amount: NT$390,133 (Update) Lease canceled on June 30, 2026

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted): Taiwan Mobile Co., Ltd., parent company

7. If the counterparty is a related party, state the reason for selecting the related party as the transaction party, the previous transferor, the relationship between the previous transferor and the company and the counterparty, the previous transfer date, and transfer amount: Reason for selecting related party: Location meets requirements. Previous transferor: Republic of China (Ministry of Economic Affairs) Relationship between previous transferor and company and counterparty: Not a related party Previous transfer date and amount: March 9, 2000 (Minguo Year 89), NT$3,525,635 (land), NT$19,464,429 (building), total NT$22,990,064 (Update) Lease canceled on June 30, 2026

8. If the ownership of the subject asset was held by a related party of the company within the past five years, state the date of acquisition and disposal, price, and relationship with the company at the time of transaction: Not applicable

9. Estimated gain (or loss) on disposal (not applicable for asset acquisition) (if deferred, list recognition details): Not applicable

10. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Delivery or payment terms: Monthly payment Lease term: August 1, 2025 (Minguo Year 114) to November 30, 2026 (Minguo Year 115) Contractual restrictions and other important agreements: None (Update) Lease canceled on June 30, 2026

11. Decision method for this transaction (e.g., bidding, price comparison, negotiation), reference basis for price determination, and decision-making unit: Chairman authorized management department to proceed per internal management regulations

12. Name of professional appraisal firm or company and appraisal amount: Not applicable

13. Name of professional appraiser: Not applicable

14. Professional appraiser license number: Not applicable

15. Whether the appraisal report is for a limited price, specific price, or special 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. If there is a significant difference in appraisal results, state the reason and auditor's opinion: Not applicable

19. Name of auditor firm: Not applicable

20. Name of auditor: Not applicable

21. Auditor license number: Not applicable

22. Broker and brokerage fee: None

23. Specific purpose or use of the acquisition or disposal: Location meets requirements.

24. Opinion of any director who objected to this transaction: None

25. This transaction is a related-party transaction: Yes

26. Date of supervisor approval or audit committee consent: November 12, 2025 (Minguo Year 114)

27. This transaction involves acquiring real estate or its right-of-use asset from a related party: Yes

28. Valuation amount under Article 16 of the 'Regulations Governing the Acquisition or Disposition of Assets by Publicly Issued Companies': Not applicable

29. Valuation amount under Article 17 of the same regulations if the valuation under the previous item is lower than the transaction price: Not applicable

30. Previous date of material information disclosure on the same event: July 31, 2025 (Minguo Year 114)

31. Other explanatory matters: (Update) None