[China Steel Chemical] Announcement of Ex-Dividend Date

1. Date of Board/Shareholders' Meeting Resolution: 115/05/28. 2. Type of Ex-Rights/Dividends: Ex-Dividend. 3. Type and Amount of Common Stock Dividends: According to Article 26-1 of the Articles of Incorporation, 438,273,288 TWD will be distributed, 1.85 TWD per share. 4. Ex-Dividend Trading Date: 115/07/09. 5. Last Transfer Date: 115/07/10. 6. Book Closure Start Date: 115/07/11. 7. Book Closure End Date: 115/07/15. 8. Ex-Dividend Record Date: 115/07/15. 9. Last Conversion Date for Bonds: N/A. 10. Bond Conversion Suspension Start Date: N/A. 11. Bond Conversion Suspension End Date: N/A. 12. Cash Dividend Payment Date: 115/08/07. 13. Other matters: The 114 fiscal year profit distribution plan was approved at the shareholders' meeting on May 26, 115.