[Root Construction] Announcement of Board Election of Chairman

1. Date of Board resolution or change: 115/05/25. 2. Personnel category: Chairman. 3. Name of predecessor: Yuan Ai-wei (Representative of Continental Engineering). 4. Resume of predecessor: Chairman of Root Construction. 5. Name of successor: Yuan Ai-wei (Representative of Continental Engineering). 6. Resume of successor: Chairman of Root Construction. 7. Change status: Term expired. 8. Reason for change: Re-election upon expiration of term. 9. Effective date of new appointment: 115/05/25. 10. Other matters: None.