[AUO] Announcement regarding the Company's participation in institutional investor conferences

Compliance with Article 4, Paragraph XX: 12. Date of occurrence: 2026/05/27. 1. Date of the investor conference: 2026/05/27 ~ 2026/06/03. 2. Time of the investor conference: 10:40 AM. 3. Location of the investor conference: 5/27 Grand Hyatt Taipei, 5/29 Four Seasons Hotel Hong Kong, 6/1 Grand Hyatt Taipei, 6/1 W Hotel Taipei, and 6/3 W Hotel Taipei. 4. Summary of the investor conference: The company will participate in the 'Q2 2026 Forum' hosted by Cathay Securities on 5/27, the 'Asian Investment Conference' hosted by UBS on 5/29, the 'Taiwan Conference 2026' hosted by HSBC on 6/1, the 'Taiwan Computex & Corporate Day 2026' hosted by Goldman Sachs on 6/1, and the '2026 Taiwan Tech Conference' hosted by Citi on 6/3, to explain the company's operations and financial overview based on the Q1 2026 investor conference content. 5. Other matters: None. For complete financial and business information, please refer to the investor conference list or the investor conference section on the Market Observation Post System.