[Yuanta Financial] Supplementary announcement regarding the change of Chairman of the Council of Members at Yuanta Securities Vietnam

1. Date of change: 115/06/01. 2. Position: Chairman of the Council of Members. 3. Name of predecessor: Mr. Chao Jen-kai. 4. Resume of predecessor: Mr. Chao Jen-kai / Chairman of the Council of Members at Yuanta Securities Vietnam. 5. Name of successor: Mr. Wang Chung-shan. 6. Resume of successor: Mr. Wang Chung-shan / (1) Chairman of the Council of Members at Yuanta Securities Vietnam (2) CFO of Yuanta Securities Vietnam (3) Authorized Representative of Yuanta Securities Vietnam. 7. Reason for change: New appointment. 8. Reason for change: Re-election of Chairman based on operational strategy. 9. Shareholding of successor: N/A. 10. Original term: 113/07/19 ~ 118/07/18. 11. Effective date: 115/06/01. 12. Change ratio of directors: N/A. 13. Change ratio of independent directors: N/A. 14. Change ratio of supervisors: N/A. 15. Whether 1/3 of directors changed: No. 16. Other: Received approval from Vietnamese authorities for the change of legal representative on 115/06/01.