【IEI Integration】Announcement of Ex-Dividend Date Establishment

1. Date of Board, Shareholders' Meeting Resolution or Company Decision: 115/07/24 2. Type of Ex-Rights or Ex-Dividend (please enter 'Ex-Rights', 'Ex-Dividend', or 'Ex-Rights-Ex-Dividend'): Ex-Dividend 3. Ordinary Share Cash Dividend Type and Amount: Cash dividend of NT$618,092,265, with NT$3.5 distributed per share. 4. Ex-Dividend Trading Day: 115/08/18 5. Last Transfer Date: 115/08/19 6. Transfer Suspension Start Date: 115/08/20 7. Transfer Suspension End Date: 115/08/24 8. Ex-Dividend Reference Date: 115/08/24 9. Final Application Date for Bond Conversion: Not applicable 10. Bond Conversion Suspension Start Date: Not applicable 11. Bond Conversion Suspension End Date: Not applicable 12. Ordinary Share Cash Dividend Payment Date: 115/09/18 13. Whether Part or All of the Cash Dividend is Paid in Foreign Currency (please enter 'Yes' or 'No'): No 14. Foreign Currency for Cash Dividend: Not applicable 15. Recipients of Foreign Currency Cash Dividend: Not applicable 16. Exchange Rate Determination Method for Foreign Currency Cash Dividend: Not applicable 17. Other Matters to be Disclosed: None.