CSHC Announces Ex-Dividend Reference Date

1. Date of Board or Shareholders' Meeting Resolution or Company Decision: 2026/06/15 2. Type of Rights Adjustment (please enter 'Rights Issue', 'Dividend Distribution', or 'Rights and Dividend Issue'): Dividend Distribution 3. Type and Amount of Cash Dividend for Ordinary Shares: NT$2.40 per share 4. Ex-Dividend Trading Date: 2026/07/03 5. Last Transfer Date: 2026/07/06 6. Start Date of Transfer Suspension: 2026/07/07 7. End Date of Transfer Suspension: 2026/07/11 8. Ex-Dividend Reference Date: 2026/07/11 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. Cash Dividend Payment Date for Ordinary Shares: 2026/07/30 13. Other Matters to be Disclosed: The profit distribution plan for fiscal year 2025 was approved at the shareholders' meeting held on May 28, 2026.