[Nuvoton] Nuvoton Technology Corporation Japan Announces Reappointment of Chairman

1. Date of Board Resolution or Change: 2026/06/26 2. Position Affected (Chairman or CEO): Chairman (Representative Director and Chairman) 3. Former Incumbent's Name: Kazuhiro Koyama 4. Former Incumbent's Background: Chairman of Nuvoton Technology Corporation Japan (Representative Director and Chairman) 5. New Appointee's Name: Kazuhiro Koyama 6. New Appointee's Background: Chairman of Nuvoton Technology Corporation Japan (Representative Director and Chairman) 7. Nature of Change (e.g., Resignation, Removal, Term Expiration, etc.): Term Expiration 8. Reason for Change: Term Expiration 9. Effective Date of New Appointment: 2026/06/26 10. Additional Disclosures: This announcement qualifies as material information under Article 7, Paragraph 6 of the Enforcement Regulations of the Securities Trading Act, as the subject is a publicly listed company. However, there are no significant impacts on shareholder rights or securities prices.

Keywords: Material Information