2634 AIDC Invited to Yuanta Securities Virtual Investor Conference

Release Date: August 8, 2026 Statement Date: August 7, 2026 Statement Time: 10:57:51 Company Code: 2634 Company Name: Aerospace Industrial Development Corporation (AIDC) Subject: AIDC Invited to Participate in Yuanta Securities Virtual Investor Conference Applicable Clause: Clause 12 Factual Date: August 20, 2026

Details: Applicable under Clause 4, Item XX: 12 Factual Date: 08/20/2026

1. Date of Investor Conference: August 20, 2026 2. Time of Investor Conference: 2:30 PM 3. Location: Virtual Investor Conference 4. Conference Highlights: AIDC has been invited to participate in the virtual investor conference hosted by Yuanta Securities. The company's management team will present its operational results for the second quarter of 2026 and provide an overview of recent market conditions. Registration URL: https://forms.cloud.microsoft/r/wJcd2SVkzn

5. Other Disclosures: None For complete financial and business information, please visit the Public Information Observation Station under the Investor Conference schedule or related sections.