[Unimicron] Participation in HSBC's HSBC Taiwan Conference 2026

Compliance with Article 4, Paragraph XX: 12. Date of occurrence: 115/06/01. 1. Date of investor conference: 115/06/01. 2. Time of investor conference: 11:00. 3. Location of investor conference: Grand Hyatt Taipei. 4. Summary of the conference: The company was invited to participate in the HSBC Taiwan Conference 2026 hosted by HSBC, where it provided explanations regarding the company's publicly released financial figures and operational performance. 5. Other matters: None. For complete financial and business information, please refer to the investor conference list or the investor conference section on the Market Observation Post System.