Dongge Yacht Announces Participation in Corporate Briefing Hosted by Hua Nan Yong Chang Securities

Pursuant to Clause 4, Item XX: 12 Factual Date: 2026/08/20 1. Date of Corporate Briefing: 2026/08/20 2. Time of Corporate Briefing: 14:30 3. Location of Corporate Briefing: Hybrid format (Online + In-person) at 4F, No. 54, Sec. 4, Minsheng E. Rd., Taipei City, hosted by Hua Nan Yong Chang Securities 4. Briefing Highlights: The company will present its business operations, financial condition, and future prospects during the corporate briefing organized by Hua Nan Yong Chang Securities 5. Other Disclosures: None For complete financial and business information, please refer to the corporate briefing schedule or related sections on the Public Information Observation Station website.