Hung Hua Advanced Innovation Co. Invited to Participate in Far Eastern Securities' Corporate Briefing

Pursuant to Clause 4, Article XX: 12 Date of Fact: 2026/06/23 1. Date of Corporate Briefing: 2026/06/23 2. Time of Corporate Briefing: 14:30 3. Location of Corporate Briefing: 14F, No. 6, Section 1, Zhongxiao West Road, Zhongzheng District, Taipei City 4. Summary of Corporate Briefing: Invited to participate in the corporate briefing hosted by Far Eastern Securities, during which the company will explain its publicly disclosed financial and business information. 5. Other Matters to be Disclosed: None For complete financial and business information, please refer to the corporate briefing schedule or related sections on the Public Information Observation Station website.