Ta Yi Announces Financial Information Due to Trading Alert Threshold on Securities Exchange

1. Date of Event: 2026/07/31

2. Reason for Announcement: In compliance with notification from the Taiwan Stock Exchange Corporation.

3. Financial and Business Information:

Period (Monthly) (Quarterly) (Last Four Quarters Cumulative) -------------------------------------------------------------------------- Latest Month YoY Change% Latest Quarter YoY Change% (Q2 2025 to Q1 2026) Item (Jun 2026) (Q1 2026) (Audited Consolidated) (Preliminary Consolidated) (Reviewed Consolidated) -------------------------------------------------------------------------- Revenue (NT$ million) 624 35.76% 1,420 9.65% 5,549 Pre-tax Net Profit (NT$ million) 136 188.89% 200 29.87% 629 Net Profit Attributable to Owners of Parent (NT$ million) 122 225.00% 163 28.35% 530 Earnings Per Share (NT$) 0.86 225.44% 1.14 29.55% 3.71

4. Whether there is any material information under Article 4 of the 'Procedures for Verification and Public Disclosure of Material Information by Listed Companies' of the Taiwan Stock Exchange Corporation: No

5. Whether there is any requirement for a press conference under Article 11 of the same procedures: No

6. Complete financial information is available on the Public Information Observation Station, accessible via the following paths: (1) Recent revenue and profit information: Basic Information > Highlights (2) Historical monthly revenue: Operations Overview > Monthly Revenue > Monthly Revenue Information under IFRS (3) Historical profit and loss (audited/reviewed): Financial Statements > Under IFRS > Consolidated/Individual > Comprehensive Income Statement (4) Historical profit and loss (voluntary preliminary announcements): Operations Overview > Preliminary Earnings Announcements

7. Other Notes: The weighted average number of shares used in calculating earnings per share has excluded treasury shares.