【Yongwei Investment Holdings】Announcement by subsidiary Zhongwei Energy Co., Ltd. regarding change of chairman

1. Date of board resolution or change: 2026/04/21 2. Personnel type (please enter chairman or general manager): Chairman 3. Name of former incumbent: Kuo Tai-Chiang 4. Brief resume of former incumbent: Chairman of Zhongwei Energy Co., Ltd. 5. Name of new incumbent: Not applicable 6. Brief resume of new incumbent: Not applicable 7. Nature of change (please enter 'resignation', 'dismissal', 'expiration of term', 'job adjustment', 'layoff', 'retirement', 'death' or 'new appointment'): Natural dismissal 8. Reason for change: Natural dismissal of corporate director due to no shareholding after disposal. 9. Effective date of new appointment: Not applicable 10. Other matters to be specified (If the subject of the event or resolution is a public company or above, this material information also complies with Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, which stipulates matters that have a significant impact on shareholders' equity or securities prices): The new incumbent is pending approval by the board of directors.