First Financial Holding Announces Change of Corporate Director Representative at First Financial Investment Trust

1. Date of Change: June 25, 2026 (Minguo Year 115) 2. Corporate Name: First Financial Securities Co., Ltd. 3. Former Representative: None 4. Former Representative's Background: None 5. New Representative: Wang Hsuan-Hao 6. New Representative's Background: Professional Assistant Manager at First Financial Securities 7. Reason for Change: New Appointment 8. Original Term: May 5, 2025 (Minguo 114) to May 4, 2028 (Minguo 117) 9. Effective Date of New Appointment: June 25, 2026 (Minguo 115) 10. Other Matters to Note: None