[Primax] The company is invited to attend the Q1 2026 investor conference hosted by Waterland Securities

Conform to Article 4, Paragraph XX: 12 Date of occurrence: 2026/05/07 1. Date of the investor conference: 2026/05/07 2. Time of the investor conference: 14:30 3. Location of the investor conference: Waterland Financial Holding Building (7F, No. 128, Lequn 3rd Rd., Taipei City) 4. Brief information of the investor conference: The company is invited to attend the Q1 2026 investor conference hosted by Waterland Securities to explain operating results and future outlook. 5. Other matters to be specified: None. For complete financial and business information, please refer to the investor conference summary or investor conference section on the Market Observation Post System.