Announcement of Change in Corporate Director at Subsidiary First Securities Asia

Release Date: July 28, 2026 Statement Date: July 27, 2026 Statement Time: 17:05:17 Company Code: 2892 Company Name: First Financial Holding Subject: Announcement of Change in Corporate Director at Subsidiary First Securities Asia Applicable Clause: Clause 6 Event Date: July 27, 2026

Details: 1. Date of Change: July 27, 2026 2. Corporate Name: First Securities Co., Ltd. 3. Former Director Name: None 4. Former Director's Background: None 5. New Director Name: Chang Ching-Fa 6. New Director's Background: Former General Manager of Yuanta Securities 7. Reason for Change: Re-designation by the Board of Directors of First Securities Co., Ltd. on July 27, 2026 8. Previous Term (e.g., xx/xx/xx to xx/xx/xx): Not applicable 9. Effective Date of New Appointment: August 3, 2026 10. Other Matters to Note: This change is implemented pursuant to Letter No. 1151007006 dated July 27, 2026, from First Securities.