[Pels Biotech] Institutional Director Appoints Representative to Attend the Board Meeting on 2026/05/05

1. Date of change: 2026/05/05 2. Name of institutional investor: Acer Inc. 3. Name of former representative: None 4. Brief resume of former representative: None 5. Name of new representative: Kuo Chien-Cheng 6. Brief resume of new representative: Chief Strategy Officer of Acer Inc. 7. Reason for change: Institutional director appoints representative to attend the board meeting 8. Original term (e.g., yy/mm/dd to yy/mm/dd): Not applicable 9. Effective date of new appointment: 2026/05/05 10. Other matters that need to be specified: The institutional director appoints a representative to attend the board meeting on 2026/05/05 to exercise the powers of the director. The representative will step down from their appointed representative status after the board meeting concludes.