【Advanced Epitaxy Technology】Announcement of the Company's Board of Directors' Approval of the Q1 2026 Consolidated Financial Statements

1. Date of Board of Directors' Submission or Resolution: 115/04/28 (April 28, 2026) 2. Date of Audit Committee Approval: 115/04/28 (April 28, 2026) 3. Reporting Period for Financial Report or Annual Self-Audited Financial Information: Start and End Date (XXX/XX/XX~XXX/XX/XX): 115/01/01~115/03/31 (January 1, 2026 - March 31, 2026) 4. Cumulative Operating Revenue from January 1 to the current period (NTD thousands): 1,058,983 5. Cumulative Operating Gross Profit (Loss) from January 1 to the current period (NTD thousands): 188,227 6. Cumulative Operating Income (Loss) from January 1 to the current period (NTD thousands): 112,229 7. Cumulative Pre-tax Net Profit (Loss) from January 1 to the current period (NTD thousands): 125,822 8. Cumulative Net Profit (Loss) for the current period from January 1 to the current period (NTD thousands): 100,656 9. Cumulative Net Profit (Loss) attributable to owners of the parent company from January 1 to the current period (NTD thousands): 100,656 10. Cumulative Basic Earnings Per Share (Loss) from January 1 to the current period (NTD): 0.35 11. Total Assets at Period End (NTD thousands): 7,114,003 12. Total Liabilities at Period End (NTD thousands): 2,217,982 13. Owners' Equity Attributable to Parent Company at Period End (NTD thousands): 4,896,021 14. Other Matters to be Specified: None