Polaris Semiconductor to Participate in KGI Securities-Hosted Investment Forum

Compliance with Clause 4, Paragraph XX: 12 Date of Fact: 2026/09/10 1. Date of the Corporate Presentation: 2026/09/10 2. Time of the Corporate Presentation: 15:20 3. Location of the Corporate Presentation: Jisi Beike Conference Center 4. Summary of the Corporate Presentation: Polaris Semiconductor was invited to participate in the investment forum hosted by KGI Securities, where it presented its operational results for the second quarter of 2026. 5. Other Matters to be Disclosed: None For complete financial and business information, please visit the Corporate Presentation Schedule or the Investor Relations section on the Public Information Observation Station website. Keywords: Material Information