Winning International Announces Ex-Dividend Date for Cash Dividend Distribution

1. Date of Board or Shareholders' Meeting Resolution or Company Decision: July 1, 2026 (R.O.C. Year 115) 2. Type of Ex-Rights/Ex-Dividend (please enter 'Ex-Rights', 'Ex-Dividend', or 'Ex-Rights/Ex-Dividend'): Ex-Dividend 3. Type and Amount of Ordinary Share Cash Dividend: NT$1 per share 4. Ex-Dividend Trading Day: July 20, 2026 (R.O.C. Year 115) 5. Last Transfer Date: July 21, 2026 (R.O.C. Year 115) 6. Start Date of Transfer Suspension: July 22, 2026 (R.O.C. Year 115) 7. End Date of Transfer Suspension: July 26, 2026 (R.O.C. Year 115) 8. Ex-Dividend Reference Date: July 26, 2026 (R.O.C. Year 115) 9. Final Date for Bond Conversion Application: N/A 10. Start Date of Bond Conversion Suspension: N/A 11. End Date of Bond Conversion Suspension: N/A 12. Ordinary Share Cash Dividend Payment Date: August 17, 2026 (R.O.C. Year 115) 13. Other Matters to be Disclosed: None