【Eclat-KY】The company's securities have reached the disclosure standard for attention-requiring trading information in the centralized trading market, thus disclosing relevant financial and business material information for investors to distinguish and understand

1. Date of occurrence of the event: 2026/04/07 2. Cause of occurrence: Due to the company's securities reaching the disclosure standard for attention-requiring trading information in the centralized trading market, relevant financial information is disclosed to facilitate investors' understanding. 3. Financial and business information:

Period Month Quarter Accumulated for the most recent four quarters ------------ ------------------- --------------------- ------------------ Item Most recent month YoY change % Most recent quarter YoY change % Accumulated for the most recent four quarters Feb 2026 (Consolidated self-reported) Q3 2025 (Consolidated reviewed) Q4 2024 to Q3 2025 (Consolidated reviewed and audited) ------------ ------------------- --------------------- ------------------ Operating Revenue 420 -17% 2,095 13% 8,041 (NT$ millions) Pre-tax Net Profit -53 -40% -320 -160% -382 (NT$ millions) Net Profit attributable to parent company owners -67 -26% -312 -193% -693 (NT$ millions) Basic Earnings Per Share -0.43 -36% -2.34 -183% -5.10 (NT$)

4. Is there any material information as listed in Article 4 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Disclosure of Material Information of Listed Securities" (if "yes", please explain): No. 5. Is there any material information briefing as listed in Article 11 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Disclosure of Material Information of Listed Securities": No. 6. For complete financial information, please refer to the Market Observation Post System, path as follows: (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 adoption > Consolidated/Individual Statements > Comprehensive Income Statement (4) Historical profit/loss (voluntary self-reported announcement): Operating Status > Self-reported Profit/Loss Announcement: 7. Other matters that need to be specified: None.