[Ventec Electronics] Disclosure of Financial Information for Convertible Bond Ventec II KY (66722) Due to Unusual Trading Activity

1. Date of occurrence: 2026/04/23 2. Reason for occurrence: Handled according to the notification from the Taipei Exchange (TPEx). 3. Convertible Bond Information: - Maturity Date: 2031/02/03 - Total Issued Amount: 500,000,000 TWD - Current Outstanding Amount: 500,000,000 TWD (as of 2026/04/22) - Latest Conversion Price: 93.00 - Underlying Stock (6672) Closing Price: 191.50 (2026/04/23) - Convertible Bond (66722) Closing Price: 209.00 (2026/04/23) 4. Other matters: There is no material information under Article 4 of the TPEx procedures that needs to be clarified.