Walsin Technology Announces Cash Dividend Record Date and Adjusted Payout Ratio

1. Date of Board, Shareholders' Meeting Resolution or Company Decision: June 24, 2026 2. Type of Ex-Rights/Ex-Dividend (please enter 'Ex-Rights', 'Ex-Dividend', or 'Ex-Rights and Ex-Dividend'): Ex-Dividend 3. Ordinary Share Dividend Type and Amount: Total cash dividend of NT$1,214,511,935, with NT$2.50309147 per share 4. Ex-Dividend Trading Date: July 9, 2026 5. Last Transfer Date: July 10, 2026 6. Start Date of Transfer Suspension: July 11, 2026 7. End Date of Transfer Suspension: July 15, 2026 8. Ex-Dividend Record Date: July 15, 2026 9. Final Date for Bond Conversion Application: Not applicable 10. Start Date of Bond Conversion Suspension: Not applicable 11. End Date of Bond Conversion Suspension: Not applicable 12. Ordinary Share Cash Dividend Payment Date: July 29, 2026 13. Other Matters to be Disclosed: 1. Due to the transfer of 400,000 treasury shares to employees and the cancellation of 600,000 shares, the adjusted number of issued and outstanding shares eligible for distribution is 485,204,774 shares, resulting in an adjusted per-share dividend rate. 2. Dividend calculations are rounded down to the nearest New Taiwan Dollar (NT$), with fractional amounts less than NT$1 aggregated and recorded as other income by the company.