[JieLin] Our company is invited to participate in the online investor briefing organized by Hongyuan Securities

In accordance with Article 4, Paragraph XX: 12 Date of occurrence: 05/21/2026 (Republic of China calendar year 115) 1. Date of investor briefing: 05/21/2026 2. Time of investor briefing: 14:30 3. Location of investor briefing: Online briefing 4. Key information from the briefing: Our company has been invited to participate in the online investor briefing organized by Hongyuan Securities to explain the company's operational status and other relevant information. 5. Other matters to be specified: None For full financial and business information, please check the investor briefing schedule or the briefing section on the Market Observation Post System.