[CH-YU] The Company's Securities have met the Standards for Disclosure of Cautionary Trading Information in the Centralized Trading Market, and thus, Important Information regarding Relevant Financial and Business Matters is Hereby Announced for Investors' Clarification and Understanding.

1. Date of occurrence of the event: 2026/04/15 2. Reason for occurrence: In accordance with the instructions of the Taiwan Stock Exchange Corporation. 3. Financial and Business Information: Period | Month | Quarter | Accumulated Last Four Quarters ------|------------|------------|---------------------- | Latest Month | YoY Change % | Latest Quarter | YoY Change % | Q2 2025 to Q1 2026 Item | March 2026 | | Q1 2026 | | (Consolidated self-computed) | (Consolidated self-computed) | | (Consolidated self-computed) | | ------|------------|------------|------------|------------|---------------------- Operating Revenue | 120 | 38.54% | 334 | 31.99% | 1,219 (Millions) | | | | | Pre-tax Net Profit | 28 | 206.90% | 52 | 125.70% | 140 (Millions) | | | | | Net Profit Attributable | 18 | 149.62% | 36 | 161.40% | 101 to Parent Company (Millions) | | | | | Earnings Per Share | 0.21 | 162.50% | 0.41 | 156.25% | 1.16 4. Is there any significant information as listed in Article 4 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information of Listed Securities" (e.g., if "Yes", please explain): None. 5. Is there any press conference for significant information as listed in Article 11 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information of Listed Securities": None. 6. For complete financial information, please refer to the Market Observation Post System, with the following paths: (1) Recent operating revenue and profit/loss information: Basic Information > Highlights Edition (2) Historical monthly operating revenue: Operating Status > Monthly Revenue > Monthly Operating Revenue Information after adopting IFRSs (3) Historical profit/loss (audited/reviewed by accountants): Financial Statements > After adopting IFRSs > Consolidated/Individual Reports > Comprehensive Income Statement (4) Historical profit/loss (voluntary self-computed disclosure): Operating Status > Self-computed Profit/Loss Disclosure: None. 7. Other matters that need to be specified: None.