Announcement of Caiy Tech Corporate Conference

Release Date: 1150723 Announcement Date: 1150722 Announcement Time: 150355 Company Code: 6789 Company Name: Caiy Tech Subject: Announcement of Caiy Tech's 2026 Second Quarter Corporate Conference Applicable Clause: Clause 12 Fact Date: 1150806 Explanation: Applicable Clause Fourth Clause XX: 12 Fact Date: 115/08/06 1. Date of Corporate Conference: 115/08/06 2. Time of Corporate Conference: 16:00 3. Venue of Corporate Conference: Online Corporate Conference 4. Key Information of Corporate Conference: (1) Hosted by Yuanta Securities Huili Subsidiary, an online Chinese corporate conference. (2) Announcement of Caiy Tech's 2026 Second Quarter Financial Report and Performance Outlook. (3) Participation Method: Please refer to the following link. https://www.viseratech.com/tw/investor/operation-report/ 5. Other Matters: None Complete financial and business information can be found on the Open Information Observation Station under the corporate conference overview or the conference item.