[Walsin Technology] Announcement regarding participation in Cathay Securities '2026 Q2 Industry Forum'

In accordance with Article 4, Paragraph XX: 12

Date of occurrence: 115/05/27 (Republic of China calendar)

1. Date of investor conference: 115/05/27 2. Time of investor conference: 15:40 3. Location of investor conference: Grand Hyatt Taipei, 3rd Floor Conference Hall (No. 2, Songshou Road, Xinyi District, Taipei City) 4. Summary of information at the investor conference: The company is invited to participate in the '2026 Q2 Industry Forum' hosted by Cathay Securities to explain the company's operational overview and future outlook. 5. Other matters to be stated: None

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