Topco (5434) to Attend Investor Conference Hosted by Fubon Securities

Topco (stock code: 5434) has been invited to an investor conference hosted by Fubon Securities. 1. Date of the conference: May 21, 2026 (Minguo calendar: 115/05/21). 2. Time of the conference: 2:30 PM. 3. Location of the conference: Fubon Securities head office (7F, No. 6, Section 1, Zhongxiao West Road, Taipei City). 4. Summary of the conference: The company will present its publicly available financial and business information. 5. Other matters to be specified: None. For complete financial and business information, please refer to the investor conference summary table or the investor conference section of the Market Observation Post System.