[Compal] Announcement on the Cancellation of the 5th Overseas Unsecured Convertible Bond Issuance

1. Date of occurrence: May 21, 2026 (Republic of China year 115) 2. Date of original announcement: November 12, 2025 (Republic of China year 114) 3. Brief description of original announcement: The company's board of directors resolved to issue the 5th overseas unsecured convertible bond. 4. Reasons for change and main contents: (1) The issuance of the overseas unsecured convertible bond previously filed by the company was approved for effectiveness by the Financial Supervisory Commission (FSC) on January 12, 2026 (Ref. Jin-Guan-Zheng-Fa-Zi No. 1140368832), and a three-month extension of the offering period was approved on March 30, 2026 (Ref. Jin-Guan-Zheng-Fa-Zi No. 1150338491). (2) Due to dramatic changes in the market environment, Compal, considering the interests of the company and its shareholders, applied to the FSC to cancel the issuance. The application was approved by the FSC on May 20, 2026 (Ref. Jin-Guan-Zheng-Fa-Zi No. 1150343368). 5. Impact on financial operations after the change: No material impact. 6. Other important information: None.