Kuo Chuan: Announcement of Company's New Chief Strategy Officer Appointment

1. Type of Personnel Change (Please enter Spokesperson, Deputy Spokesperson, Key Operating Officer (e.g., CEO, COO, CMO, CSO), CFO, Accounting Officer, Corporate Governance Officer, CISO, R&D Officer, Internal Audit Officer, or Litigation and Non-Litigation Agent): Chief Strategy Officer 2. Date of Change: May 12, 2026 3. Name, Rank, and Brief Biography of Former Incumbent: Not Applicable 4. Name, Rank, and Brief Biography of New Incumbent: Wu Chi-jen / Chief Strategy Officer / Experience: General Manager of Kuo Chuan Construction Materials 5. Circumstances of Change (Please enter 'Resignation', 'Position Adjustment', 'Redundancy', 'Retirement', 'Death', 'New Appointment', or 'Dismissal'): New Appointment 6. Reason for Change: New Appointment 7. Effective Date: May 12, 2026 8. Other Matters to Be Notified: None.