Tatung Optoelectronics Invited to Cathay Securities' Corporate Briefing Session

Compliance with Clause 4, Paragraph XX: 12

Factual Date: 115/08/25

1. Date of Corporate Briefing Session: 115/08/25 2. Time of Corporate Briefing Session: 15:30 3. Location of Corporate Briefing Session: Taipei 4. Summary of Briefing Session: Our company was invited to attend the corporate briefing session hosted by Cathay Securities, during which we presented an overview of our business operations. 5. Other Matters to be Disclosed: None

For complete financial and business information, please refer to the corporate briefing session schedule or related items on the Public Information Observation Station website.