Leadtek Research Announces CEO Change: Chiu Chui-Hua Takes Over

Release Date: July 24, 2025 Statement Date: July 23, 2025 Statement Time: 15:46:41 Company Code: 3588 Company Name: Leadtek Research Inc.

Subject: Announcement of Change in Chief Executive Officer Applicable Clause: Item 6 Factual Date: July 23, 2025

Details: 1. Board resolution date or effective date of change: July 23, 2025 2. Position (please specify Chairman or CEO): CEO 3. Former Executive's Name: Chi-Heng-Chung 4. Former Executive's Background: Chief Executive Officer, Leadtek Research Inc. 5. New Executive's Name: Chiu Chui-Hua 6. New Executive's Background: Senior Vice President, Leadtek Research Inc. 7. Nature of Change (please select from 'resignation', 'dismissal', 'end of term', 'role adjustment', 'redundancy', 'retirement', 'deceased', or 'new appointment'): Role Adjustment 8. Reason for Change: Role Adjustment 9. Effective Date of New Appointment: July 23, 2025 10. Additional Notes: This significant information also qualifies as a material event under Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, applicable to publicly listed companies, having significant impact on shareholder rights or securities prices. No further matters to disclose.