[First Financial] First Financial Securities Asia Announces Change in Corporate Director

1. Date of Change: 2026/07/27 2. Corporate Name: First Financial Securities Co., Ltd. 3. Former Director's Name: None 4. Former Director's Resume: None 5. New Director's Name: Chang Ching-Fa 6. New Director's Resume: General Manager of Yuanta Securities 7. Reason for Change: Re-designation by the board of directors of First Financial Securities Co., Ltd. on 2026/07/27 8. Previous Term (e.g., xx/xx/xx to xx/xx/xx): Not applicable 9. Effective Date of New Appointment: 2026/08/03 10. Other Matters to be Clarified: In accordance with Letter No. 1151007006 from First Financial Securities (dated 2026/07/27).