Taiwan Mobile to Hold Conference Call on August 14, 2026, to Discuss Second Quarter 2026 Business Results

Compliance with Clause 4, Paragraph XX: 12 Date of Fact: 2026/08/14

1. Date of the Investor Conference: 2026/08/14 2. Time of the Investor Conference: 4:00 PM 3. Location of the Investor Conference: Teleconference 4. Summary of the Investor Conference: (1) Announcement of Taiwan Mobile's financial report for Q2 2026. (2) Participation method: Please refer to https://corp.taiwanmobile.com/investor-relations/investor-relations.html 5. Other Matters to be Disclosed: None

For complete financial and business information, please visit the public information observation station under the 'Investor Conference Schedule' or 'Investor Presentation' section.