PCC: Announcement of Material Financial Information Due to Trading Alert Threshold on Exchange

1. Date of Event: July 2, 2026 (R.O.C. Year 115) 2. Reason for Announcement: In compliance with notification from the Taiwan Stock Exchange Corporation 3. Financial and Business Information: Unit: NT$ Million

Period (Monthly) (Quarterly) (Last Four Quarters Cumulative) --------------------------------------------------------------------------------------------- Most Recent Month Most Recent Quarter From Q2 2025 to Q1 2026 Item May 2026 Q1 2026 (Consolidated Audited/Reviewed) (Consolidated Self-compiled) (Consolidated Reviewed) --------------------------------------------------------------------------------------------- Operating Revenue 182 492 1,807 Pre-tax Net Profit (42) (78) (697) Net Profit Attributable to Parent Company Owners (32) (66) (589) Earnings Per Share (NT$) (0.28) (0.58) (5.20)

Year-over-year change: +31.88% +2.71%

4. Whether there are any material events under Article 4 of the 'Procedures for Verification and Disclosure of Material Information by Listed Companies' of the Taiwan Stock Exchange Corporation: No 5. Whether there is a scheduled press conference under Article 11 of the said Procedures: No 6. Complete financial information is available on the Public Information Observation System. Access paths: (1) Recent operating revenue and profit/loss: Basic Information > Highlights (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 self-compiled announcements): Operations Overview > Self-Compiled Earnings Announcements 7. Other Matters to be Disclosed: None