Chun Yang Announces Participation in Corporate Briefing Hosted by Fubon Securities

Pursuant to Clause 4, Item XX: 12

Factual Date: June 29, 2026

1. Date of the corporate briefing: June 29, 2026 2. Time of the corporate briefing: 2:30 PM 3. Venue of the corporate briefing: 14F, No. 6, Section 1, Zhongxiao West Road, Zhongzheng District, Taipei City (Head Office of Fubon Securities) 4. Summary of the briefing: Chun Yang has been invited to participate in a corporate briefing hosted by Fubon Securities, during which the company will present its publicly disclosed financial and business information. 5. Other disclosures: None

For complete financial and business information, please refer to the corporate briefing schedule or the investor presentation section on the Public Information Observation Station website.