【Prorize】Announcement of Company's Participation in Investor Conference Invited by First Golden Securities

In compliance with Article 4, Paragraph XX, Item 12 of the relevant regulations: Date of occurrence of the fact: 2026/06/03. 1. Date of investor conference: 2026/06/03. 2. Time of investor conference: 15:30. 3. Venue of investor conference: Sheraton Grand Taipei Hotel (Address: No. 12, Section 1, Zhongxiao East Road, Zhongzheng District, Taipei City). 4. Key message of investor conference: The company has been invited to participate in the Q2 2026 Investment Forum hosted by First Golden Securities. 5. Other matters to be stated: None. For complete financial and business information, please refer to the investor conference schedule or the investor conference section on the Market Observation System.