[Lai Yi-KY] The Company's Securities Reached the Standard for Announcing Attention Trading Information in the Centralized Market, Therefore Relevant Financial and Business Information is Disclosed for Investors to Understand.

1. Date of Occurrence: 2026/06/05 2. Cause: In accordance with the Taiwan Stock Exchange notice, major information disclosure is handled legally. 3. Financial Business Information: Latest Month YoY Change Latest Quarter YoY Change Latest Four Quarters Period (April 2026) (Q1 2026) (Q2 2025 to Q1 2026) Item (Consolidated Self-filed) % Change (Reviewed) % Change (Audited/Reviewed) ====== ====================== ======== ============ ========== ===============

Operating Revenue (NT$ million) 4,211 -9% 7,078 -27% 36,990

Pre-tax Profit (NT$ million) 456 -29% 247 -79% 3,328

Net Profit Attributable to Parent (NT$ million) 358 -27% 188 -79% 2,522

Earnings Per Share (NT$) 1.44 -27% 0.75 -79% 10.11 4. Whether there is any major information under Article 4 of the Taiwan Stock Exchange Procedures: No. 5. Whether there is a press conference for major information under Article 11: No. 6. Complete financial information can be found on the public information observatory. 7. Other matters to be stated: None.