【Fu-Sheng-Da】The company's securities have recently reached the standard for public disclosure of cautionary trading information, thus announcing relevant information for investors' clear understanding

1.Date of occurrence of the event: 2026/04/28 2.Cause of the event: In accordance with the notification from Taiwan Stock Exchange Corporation 3.Financial and business information:

Period (Month) (Month) (Quarter) (Quarter) (Accumulated for the latest four quarters) ============== ========== ========== ========== ========= ============== Item Latest month YoY Latest quarter YoY Q1 2025 to March 2026 change Q4 2025 change Q4 2025

Consolidated self-assessment (%) Consolidated audited (%) Consolidated audited ============== ========== ========== ========== ========= ============= Operating revenue (Millions) 1,600 95.02% 3,976 43.55% 12,414 Pre-tax net profit (Millions) 468 188.86% 899 89.08% 2,545 Net profit for the period (Millions) 374 185.22% 752 81.99% 2,125 Earnings per share (NT$) 5.46 185.86% 10.96 82.06% 31.00

4.Whether there are any material information events listed in Article 4 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information for Listed Securities" (if "yes", please explain): None. 5.Whether there are any material information press conference events listed in Article 11 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information for Listed Securities": None. 6.For complete financial information, please refer to the Public Information Observation Post website, path as follows: (1)Recent operating revenue and profit/loss information: Basic Information > Highlights (2)Historical monthly operating revenue: Operations Overview > Monthly Revenue > Monthly Operating Revenue Information after IFRSs adoption (3)Historical profit/loss (audited/reviewed by accountants): Financial Reports > After IFRSs adoption > Consolidated/Individual Reports > Comprehensive Income Statement (4)Historical profit/loss (voluntary self-assessment announcement): Operations Overview > Self-assessment profit/loss announcement: 7.Other matters that should be specified: None Keywords: Material Information