[Ta Tung] Announcement of Significant Financial Information due to Securities Reaching Warning Standard on the Centralized Trading Market

1. Date of occurrence: 115/04/22 2. Cause of occurrence: Handled in accordance with the notification from the Taiwan Stock Exchange Corporation. 3. Financial and business information: - Recent month (Mar 115, IFRS standalone unaudited): Revenue 646.39M (YoY +8%), Pre-tax profit 107.00M (YoY +30%), Net profit attributable to owners of the parent 85.87M (YoY +35%), EPS 1.30 (YoY +23%). - Recent quarter (Q4 114, IFRS standalone audited): Revenue 1,170.24M (YoY +13%), Pre-tax profit 311.09M (YoY +76%), Net profit attributable to owners of the parent 251.4M (YoY +71%), EPS 4.19 (YoY +74%). - Last 4 quarters cumulative (Q1 114 to Q4 114, IFRS standalone audited): Revenue 6,607.04M, Pre-tax profit 1,009.63M, Net profit attributable to owners of the parent 816.87M, EPS 13.61. 4. Any material information under Article 4: None. 5. Any press conference under Article 11: None. 6. For complete financial information, please visit MOPS. 7. Other matters to specify: None.