【Sanko】Announcement of Important Operational Executive Change

1. Type of Personnel Change (Please enter Spokesperson, Deputy Spokesperson, Important Operational Executive (e.g., CEO, COO, CMO, Chief Strategy Officer), CFO, Chief Accounting Officer, Chief Governance Officer, Chief Information Security Officer, R&D Director, Internal Audit Director, or Litigation and Non-litigation Agent): Deputy General Manager 2. Date of Change: May 11, 2026 (115/05/11) 3. Name, Rank, and Brief Biography of Former Incumbent: None 4. Name, Rank, and Brief Biography of New Appointee: Huang Yu-Chun / Sanko Co., Ltd. Special Assistant to the Chairman and Manager of the Sales Department 5. Circumstances of Change (Please enter "Resignation", "Job Adjustment", "Dismissal", "Retirement", "Death", "New Appointment", or "Dismissal"): New Appointment 6. Reason for Change: None 7. Effective Date: May 12, 2026 (115/05/12) 8. Other Matters to be Notified: This personnel appointment was approved by the Board of Directors on May 11, 2026 (115/05/11).