【Tong Hsing】The company's securities have recently reached the standards for public alert transaction information, thus announcing relevant information to facilitate investor understanding.

1. Date of occurrence of the event: 2026/05/13 2. Reason for occurrence: Handled according to the notification from Taiwan Stock Exchange Corporation. 3. Financial and business information: Period (Month) (Month) (Quarter) (Quarter) (Cumulative for most recent four quarters) ============== ========== ========== ========== ========= ============ Item Latest month Compared to last year Latest quarter Compared to last year Q2 2025 to April 2026 same period increase/decrease Q1 2026 increase/decrease Q1 2026

Consolidated self-compiled (thousand NTD) (%) Consolidated reviewed (thousand NTD) (%) Consolidated reviewed (thousand NTD) ============== ========== ========== ========== ========= ============ Operating revenue (millions) 70 75 154 55.56 542 Pre-tax net profit (millions) 19 Turnaround to profit 27 Turnaround to profit 26 Net profit for the period (millions) 19 Turnaround to profit 28 Turnaround to profit 20 Earnings per share (NTD) 0.5 Turnaround to profit 0.74 Turnaround to profit 0.52

4. Whether there are any material information items listed in Article 4 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Handling of Material Information of Listed Securities" (if "Yes", please explain): No 5. Whether there will be a press conference to explain material information as listed in Article 11 of the "Taiwan Stock Exchange Corporation Procedures for Verification and Public Handling of Material Information of Listed Securities": No 6. For complete financial information, please refer to the Market Observation 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 (3) Historical profit/loss (audited/reviewed by CPA): Financial Statements > After IFRSs > Consolidated/Individual Reports > Comprehensive Income Statement (4) Historical profit/loss (voluntarily announced self-compiled figures): Operating Status > Self-compiled Profit/Loss Announcement: 7. Other matters that need to be specified: None