Nuvoton Technology Corporation Japan Announces Reappointment of Chairman

Disclosure Date: 2026-06-27 Statement Date: 2026-06-26 Statement Time: 17:50:25 Company Code: 4919 Company Name: Nuvoton Technology Corporation Subject: Announcement on the Appointment of Chairman by Important Subsidiary Nuvoton Technology Corporation Japan Applicable Clause: Item 6 Event Date: 2026-06-26 Details: 1. Board Resolution or Effective Date of Change: 2026/06/26 2. Position (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 (Resignation, Removal, End of Term, Role Adjustment, Severance, Retirement, Death, or New Appointment): End of Term 8. Reason for Change: End of Term 9. Effective Date of New Appointment: 2026/06/26 10. Additional Notes (If the subject is a publicly listed company, this announcement also qualifies under Article 7, Clause 6 of the Enforcement Rules of the Securities and Exchange Act regarding matters significantly affecting shareholders' rights or securities prices): None