Yongwei Investment Holdings Announces Resignation of Independent Director at Subsidiary Senwei Energy Co., Ltd.

1. Date of Change: 2026/06/29 2. Category of Personnel Affected (e.g., Legal Person Director, Legal Person Supervisor, Independent Director, Natural Person Director, or Natural Person Supervisor): Independent Director 3. Former Title and Name: Chung-Hsiung Weng 4. Former Director's Resume: Independent Director, Senwei Energy Co., Ltd. 5. New Director's Title and Name: Not applicable 6. New Director's Resume: Not applicable 7. Nature of Change (e.g., Resignation, Removal, Term Expiration, Death, or New Appointment): Resignation 8. Reason for Change: Resignation from directorship due to personal career planning 9. Number of Shares Held by New Director at Time of Appointment: Not applicable 10. Original Term (e.g., YY/MM/DD ~ YY/MM/DD): 2026/06/22 ~ 2029/06/21 11. Effective Date of New Appointment: Not applicable 12. Proportion of Director Changes During Same Term: 2/7 13. Proportion of Independent Director Changes During Same Term: 1/3 14. Proportion of Supervisor Changes During Same Term: Not applicable 15. Whether More Than One-Third of Directors Changed (Yes or No): No 16. Other Matters to be Disclosed (if the subject is a publicly issued company, this announcement qualifies as a material event under Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act): None