[Silergy*-KY] Company Invited to Participate in UBS-Hosted Online Investor Briefing

Compliance with Clause 4, Article XX: 12 Factual Announcement Date: 115/08/28

1. Date of Investor Briefing: 115/08/28 2. Time of Investor Briefing: 14:00 3. Location of Investor Briefing: Teleconference. 4. Summary of Investor Briefing: The company has been invited to participate in an online investor briefing hosted by UBS to discuss its operational and business performance for the second quarter of 2026. Investors or analysts may join via the following link: https://openexc.zoom.us/webinar/register/WN_1y6DnA0_Q1aV9vm1FYRqEQ#/registration 5. Other Matters to Note: None.

For complete financial and business information, please refer to the Corporate Investor Presentation Schedule or Investor Briefing section on the Public Information Observation Station website.