[CTBC] CTBC Securities Announces List of 7th Audit Committee Members

1. Change date: May 19, 2026 2. Name of functional committee: Audit Committee 3. Name of outgoing members: Zhou Guannan, Lin Jianzhi, Ji Chonghui 4. Biography of outgoing members: Independent Directors of CTBC Securities Co., Ltd. 5. Name of incoming members: Zhang Mingjie, He Gengyu, Yang Nianci 6. Biography of incoming members: Chief Economist of Fulaikai Investment Bank, Professor of the Department of Finance at National Taiwan University, Professor of the Department of Business Administration at National United University 7. Situation of change: Expiration of term 8. Reason for change: Board of Directors appointed new term members 9. Previous term: May 19, 2023 – May 18, 2026 10. Effective date of appointment: May 19, 2026 11. Other information: None