【Tai-I】Announcement of Financial and Business Information due to Trading Alert

1. Date of occurrence: 2026/05/22. 2. Reason: Announcement made per TWSE notification. 3. Financial data: April consolidated revenue was 542 million TWD (+11.52% YoY); pre-tax profit was 70 million TWD (+105.88% YoY); net profit attributable to parent company was 56 million TWD (+107.41% YoY); EPS was 0.39 TWD (+107.69% YoY). Q1 EPS was 1.14 TWD (+29.55% YoY). 4. Material information: None. 5. Press conference: None. 6. Full details available on the Market Observation Post System. 7. Note: Weighted average shares for EPS calculation exclude treasury shares.