[SUNON] Announcement of Cash Dividend Record Date and Adjustment of Dividend Rate

1. Date of Board of Directors/Shareholders' meeting resolution or company decision: 115/05/25. 2. Type of ex-rights/ex-dividend: Ex-dividend. 3. Type and amount of cash dividend for common shares: (1) Original type and amount: Cash dividend of 1,498,968,180 TWD, 5.5 TWD per share. (2) Adjusted type and amount: Cash dividend of 1,498,968,180 TWD, 5.24042062 TWD per share. 4. Ex-dividend trading date: 115/06/10. 5. Last transfer date: 115/06/11. 6. Start date of suspension of transfer: 115/06/12. 7. End date of suspension of transfer: 115/06/16. 8. Ex-dividend record date: 115/06/16. 9. Last date for bond conversion application: N/A. 10. Start date of suspension of bond conversion: N/A. 11. End date of suspension of bond conversion: N/A. 12. Cash dividend payment date: 115/07/02. 13. Other matters: Due to the issuance of new common shares through cash capital increase, the number of outstanding shares has increased.