Richtek (6799): Announcement of Board Election of Chairman

Announcement Date: 2026/05/23 Statement Date: 2026/05/22 Company Code: 6799 Company Name: Richtek Subject: Announcement of board election of chairman Clause: 6 Fact Date: 2026/05/22 Description: 1. Date of board resolution or change: 2026/05/22 2. Personnel type: Chairman 3. Name of predecessor: AP Memory Corp. 4. Resume of predecessor: Chairman of Richtek Technology Corp. 5. Name of successor: AP Memory Corp. Representative: Lin Yu-Hsin 6. Resume of successor: CFO and Spokesperson of AP Memory Corp. 7. Change situation: Term expiration 8. Reason for change: Comprehensive re-election of directors 9. Effective date: 2026/05/22 10. Other notes: None