[CHB] Announcement of Change of Spokesperson

1. Personnel change category (Spokesperson, Deputy Spokesperson, Key Operations Executive, Financial Executive, Accounting Executive, Corporate Governance Executive, Chief Information Security Officer, R&D Executive, Internal Audit Executive, Litigation/Non-litigation Agent): Spokesperson 2. Date of change: 2026/06/05 3. Name, position, and profile of the predecessor: None 4. Name, position, and profile of the successor: Zhuang Zhengqi (Executive Vice President of Chang Hwa Bank) Education: Graduate Institute of Economics, Feng Chia University Key experience: Executive Vice President of Chang Hwa Bank, Head of Corporate Planning Division 5. Nature of change (Resignation, position adjustment, layoff, retirement, death, new appointment, or dismissal): New appointment 6. Reason for change: New appointment 7. Effective date: 2026/06/08 8. Other matters to be specified: None