2454 MediaTek: Announcement of New Director Appointment by Subsidiary's Corporate Shareholder

Release Date: July 7, 2026 Statement Date: July 6, 2026 Statement Time: 18:17:09 Company Code: 2454 Company Name: MediaTek Subject: Announcement of Director Appointment by Corporate Shareholder of Key Subsidiary MediaTek Capital Corporation Applicable Clause: Clause 6 Factual Date: July 6, 2026

Details: 1. Date of Change: 07/06/2026 2. Name of Corporate Entity: MediaTek Inc. 3. Former Director's Name: Not Applicable 4. Former Director's Background: Not Applicable 5. New Director's Name: Hsuan-Ni Chen 6. New Director's Background: Deputy General Manager, Finance Division, MediaTek Inc. 7. Reason for Change: Corporate shareholder has appointed an additional director 8. Original Term (e.g., xx/xx/xx to xx/xx/xx): Not Applicable 9. Effective Date of New Appointment: 07/06/2026 10. Other Matters to be Disclosed: None