Wei Hua Technology Announces Material Financial Information Due to Trading Alert Threshold on Taiwan Stock Exchange

1. Date of Event: July 2, 115 (2026)

2. Reason for Announcement: In compliance with notification from the Taiwan Stock Exchange Corporation.

3. Financial and Business Information:

Most Recent Month vs. Prior Year Most Recent Quarter vs. Prior Year Cumulative from Q2 114 (May 115) Change % (Q1 115) Change % to Q1 115 IFRS Consolidated IFRS Consolidated IFRS Consolidated Preliminary Figures Audited Figures Audited Figures

Revenue 23 -75.19% 84 26.42% 477 (NT$ million)

Pre-tax Net Profit -15 6.04% -16 80.28% -270 (NT$ million)

Net Profit Attributable to Owners of Parent -12 2.01% -17 76.73% -246 (NT$ million)

Earnings Per Share -0.10 1.71% -0.15 77.27% -2.17 (NT$)

The decrease in revenue for May 115 was primarily due to lower sales of customized equipment.

The reduction in losses for pre-tax net profit, net profit attributable to owners of parent, and earnings per share in Q1 115 was mainly attributable to lower operating expenses.

4. Whether there are material events under Article 4 of the 'Taiwan Stock Exchange Corporation Procedures for Verification and Disclosure of Material Information by Listed Companies': No

5. Whether a press conference under Article 11 of the same procedures is required: No

6. Complete financial information is available on the Public Information Observation Station. Access paths: (1) Recent revenue and profit/loss: Basic Information > Summary (2) Historical monthly revenue: Operations Overview > Monthly Revenue > Monthly Revenue Information under IFRS (3) Historical profit/loss (audited/reviewed): Financial Statements > Under IFRS > Consolidated/Individual > Consolidated Statement of Comprehensive Income (4) Historical profit/loss (voluntary preliminary announcements): Operations Overview > Preliminary Profit/Loss Announcements: None

7. Other Matters to be Disclosed: None