First Financial Holding Announces Change of Corporate Director Representative at Subsidiary First Financial Investment Advisory

Release Date: June 26, 2026 Statement Date: June 25, 2026 Statement Time: 16:40:10 Company Code: 2892 Company Name: First Financial Holding Subject: Announcement of Change in Corporate Director Representative at Subsidiary First Financial Investment Advisory Applicable Clause: Clause 6 Factual Date: June 25, 2026

Details: 1. Date of Change: June 25, 2026 2. Corporate Name: First Financial Securities Co., Ltd. 3. Former Representative: None 4. Former Representative's Background: None 5. New Representative: Wang Xuan-Hao 6. New Representative's Background: Professional Assistant Manager, First Financial Securities 7. Reason for Change: New Appointment 8. Original Term: May 5, 2025 to May 4, 2028 9. Effective Date of New Appointment: June 25, 2026 10. Other Matters to be Disclosed: None