Announcement: Chang Kuang Electro-Optics Co., Ltd.'s Q1 2026 Consolidated Financial Report Approved by Board of Directors

1. Date of report to the board of directors or resolution by the board of directors: 115/05/06 2. Date of approval by the audit committee: 115/05/06 3. Reporting period for financial reports or annual self-reported financial information Start and end dates (XXX/XX/XX~XXX/XX/XX): 115/01/01~115/03/31 4. Cumulative operating revenue from January 1 to the end of the current period (in thousands of NTD): 417,748 5. Cumulative operating gross profit (gross loss) from January 1 to the end of the current period (in thousands of NTD): 164,583 6. Cumulative operating profit (loss) from January 1 to the end of the current period (in thousands of NTD): 45,923 7. Cumulative net profit (net loss) before tax from January 1 to the end of the current period (in thousands of NTD): 46,458 8. Cumulative net profit (net loss) for the current period from January 1 to the end of the current period (in thousands of NTD): 16,098 9. Cumulative net profit (loss) attributable to owners of the parent company from January 1 to the end of the current period (in thousands of NTD): 16,098 10. Cumulative basic earnings per share (loss) from January 1 to the end of the current period (NTD): 0.21 11. Total assets at period end (in thousands of NTD): 4,174,097 12. Total liabilities at period end (in thousands of NTD): 1,361,173 13. Equity attributable to owners of the parent company at period end (in thousands of NTD): 2,812,924 14. Other matters to be specified: None