Winbond Electronics Announces Full Conversion of Its Fourth Overseas Unsecured Convertible Corporate Bond

1. Date of Event: 115/08/03 2. Company Name: Winbond Electronics Corporation 3. Relationship with Company (please enter '本公司' or 'Subsidiary'):本公司 (the Company itself) 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: The full conversion of the Company's fourth overseas unsecured convertible corporate bond 6. Response Measures: None 7. Other Matters to be Disclosed (if the subject of the event or resolution is a publicly issued company or above, this material information simultaneously meets the criteria under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities and Exchange Act, concerning matters having significant impact on shareholders' rights or securities prices): None Keywords: Material Information