[Walsin] Announcement on changes in directors for important subsidiary Walsin Singapore Pte. Ltd.

1. Date of change: 2026/05/08 2. Type of selected or changed personnel (please enter corporate director, corporate supervisor, independent director, natural person director, or natural person supervisor): Natural person director 3. Title and name of former incumbent: Director Wang Huaiyu 4. Brief resume of former incumbent: Director of Walsin Singapore Pte. Ltd. 5. Title and name of new incumbent: Director Luo Huiping 6. Brief resume of new incumbent: Director of Walsin Singapore Pte. Ltd. 7. Reason for change (please enter "Resignation", "Removal", "Term expired", "Death", or "New appointment"): Removal 8. Reason for change: Appointment of director by corporate shareholder 9. Number of shares held by new incumbent at time of selection: None 10. Original term (e.g., yy/mm/dd ~ yy/mm/dd): Not applicable 11. Effective date of new appointment: 2026/05/08 12. Percentage of director changes in the same term: 1/5 13. Percentage of independent director changes in the same term: Not applicable 14. Percentage of supervisor changes in the same term: Not applicable 15. Does the change involve more than one-third of the directors (please enter yes or no): No 16. Other matters that need to be specified (If the subject of the event or resolution is a public company or above, this material information also meets the criteria for matters that have a material impact on shareholders' equity or securities prices as stipulated in Article 7, Paragraph 6 of the Enforcement Rules of the Securities Exchange Act): None Keywords: Material Information