Rui-Ding Announces Ex-Dividend Date for 2026

1. Date of Board, Shareholders' Meeting Resolution or Company Decision: 06/16/2026 2. Type of Rights Adjustment (please enter 'Rights Issue', 'Dividend Distribution' or 'Rights and Dividend'): Dividend Distribution 3. Type and Amount of Ordinary Share Dividend: Cash dividend of NT$1,107,486,300 to shareholders, NT$14.6 per share 4. Ex-Dividend Trading Day: 07/02/2026 5. Last Transfer Date: 07/04/2026 6. Start Date of Transfer Suspension: 07/05/2026 7. End Date of Transfer Suspension: 07/09/2026 8. Ex-Dividend Reference Date: 07/09/2026 9. Final Date for Bond Conversion Application: Not applicable 10. Start Date of Bond Conversion Suspension: Not applicable 11. End Date of Bond Conversion Suspension: Not applicable 12. Ordinary Share Cash Dividend Payment Date: 07/30/2026 13. Other Matters to be Disclosed: None