Thunder Tiger: Public disclosure of significant financial and business information due to securities reaching alert status in the centralized trading market, for investors' clear understanding.

1. Date of occurrence: 2026/04/17 2. Cause of occurrence: Handled according to the notification from Taiwan Stock Exchange Corporation. 3. Financial and business information: Recent Month Item March 2026 Year-on-year change (%) (Unaudited) Operating Revenue (NT$ millions) 120 5% Pre-tax Net Profit (NT$ millions) (3) -117% Net Profit for the Period (NT$ millions) 21 14% (Attributable to Owners of Parent) Earnings Per Share (NT$) 0.14 16% Recent Quarter Item Q4 2025 Year-on-year change (%) (Audited) Operating Revenue (NT$ millions) 345 6% Pre-tax Net Profit (NT$ millions) (29) -188% Net Profit for the Period (NT$ millions) (23) -172% (Attributable to Owners of Parent) Earnings Per Share (NT$) (0.15) -171% Cumulative Last Four Quarters Item Q1 2025 to Q4 2025 Year-on-year change (%) (Audited) Operating Revenue (NT$ millions) 1,424 14% Pre-tax Net Profit (NT$ millions) 85 -19% Net Profit for the Period (NT$ millions) 88 22% (Attributable to Owners of Parent) Earnings Per Share (NT$) 0.58 16% 4. Whether there are any significant information events listed in Article 4 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information by Listed Securities Companies" (if "Yes", please explain): No. 5. Whether there are any circumstances requiring a press conference for significant information explanation listed in Article 11 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information by Listed Securities Companies": No. 6. For complete financial information, please refer to the Market Observation Post System via the following paths: (1) Recent operating revenue and profit/loss information: Basic Information > Highlights (2) Historical monthly operating revenue: Operating Status > Monthly Revenue > Monthly Operating Revenue Information after IFRSs adoption (3) Historical profit/loss (audited/reviewed by accountants): Financial Statements > After IFRSs > Consolidated/Separate Financial Statements > Comprehensive Income Statement (4) Historical profit/loss (voluntary disclosure of unaudited figures): Operating Status > Unaudited Profit/Loss Disclosure: 7. Other matters that need to be specified: March 2026 figures are unaudited. Non-operating income and expenses include changes in current long-term and short-term investments and exchange rates, and the actual figures are subject to the accountant's audited figures.