Taiwan Mobile to Hold Investor Briefing in Tokyo

Announcement Date: July 8, 2026 Statement Date: July 7, 2026 Statement Time: 17:30:16 Company Code: 3045 Company Name: Taiwan Mobile Purpose: Announcement of overseas investor briefing for institutional investors Applicable Clause: Clause 12 Factual Date: July 13, 2026

Details: Applicable under Clause 4, Item XX: 12 Factual Date: 07/13/2026

1. Date of Investor Briefing: July 13–14, 2026 2. Time of Investor Briefing: 1:30 PM 3. Location of Investor Briefing: Tokyo 4. Briefing Highlights: Invited by Morgan Stanley Securities, the company will present its Q1 2026 investor presentation materials, along with other publicly disclosed financial figures and operational performance, to institutional investors at the above time and location. 5. Other Disclosures: None

For complete financial and business information, please visit the public information observation station under the 'Investor Briefings' section or the 'Earnings Call' category.