Winbond Electronics Announces Suspension of Previously Announced Additional Endorsement Guarantee for Nuvoton Technology Corporation Japan

1. Factual Date: 115/06/12

2. Company Name: Winbond Electronics Corporation and Nuvoton Technology Corporation Japan

3. Relationship with Company (please specify 'our company' or 'subsidiary'): Our company and subsidiary

4. Cross-shareholding Ratio: As of 115/05/31, our company holds 52.78% of Nuvoton Technology Corporation Japan

5. Reason for Occurrence: On 115/03/10, we announced an additional endorsement guarantee for Nuvoton Technology Corporation Japan. However, due to the conversion of overseas unsecured convertible bonds issued by Nuvoton Technology Corporation, the indirect shareholding ratio of our company in Nuvoton Technology Corporation Japan has changed.

6. Response Measures: Our company has decided to suspend the previously announced additional endorsement guarantee for Nuvoton Technology Corporation Japan on 115/03/10.

7. Other Matters to be Clarified (if the subject of the event or resolution is a publicly listed company or above, this material information also meets the criteria under Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act regarding matters that significantly affect shareholders' rights or securities prices): None

Keywords: Material Information