4771 Wangshun Invited to KGI Securities Corporate Briefing Session

Release Date: August 11, 2026 Statement Date: August 10, 2026 Statement Time: 19:02:31 Company Code: 4771 Company Name: Wangshun Purpose: Announcement of the company's participation in a corporate briefing hosted by KGI Securities. Applicable Clause: Clause 12 Factual Date: August 12, 2026

Details: Complies with Clause 4, Subsection XX, Item 12 Factual Date: August 12, 2026

1. Date of Corporate Briefing: August 12, 2026 2. Time of Corporate Briefing: 14:30 3. Venue of Corporate Briefing: KGI Securities Dazhi Building (No. 700, Mingshui Road, Zhongshan District, Taipei City) 4. Summary of Briefing: Wangshun has been invited to participate in a corporate briefing hosted by KGI Securities, during which it will present an overview of its business operations. 5. Additional Notes: For further information, please refer to the corporate briefing schedule or the investor presentation section on Taiwan's Public Information Observation Station. Complete financial and business information is also available in the same section of the website.