7823 Aoyi Cyber-KY Announces Completion of First Treasury Stock Buyback

Release Date: July 4, 2026 Statement Date: July 3, 2026 Statement Time: 16:47:31 Company Code: 7823 Company Name: Aoyi Cyber-KY Subject: Announcement of Completion of First Treasury Stock Repurchase Applicable Clause: Clause 35 Factual Date: July 3, 2026

Details: 1. Original upper limit of total repurchase amount (NT$): 199,518,938 2. Original repurchase period: May 11, 2026 ~ July 6, 2026 3. Original number of shares to be repurchased (shares): 665,000 4. Original repurchase price range (NT$): 64.00 ~ 125.00 5. Actual repurchase period: May 12, 2026 ~ July 3, 2026 6. Number of shares actually repurchased (shares): 665,000 7. Total amount paid for repurchased shares (NT$): 65,810,797 8. Average repurchase price per share (NT$): 98.96 9. Cumulative number of own shares held (shares): 665,000 10. Percentage of cumulative own shares held to total issued shares (%): 1.99 11. Reason for incomplete execution: N/A 12. Other matters to be disclosed: None