[Walsin] Announcement of Board Resolution on Capital Increase Base Date by Important Subsidiary Walsin Lihwa Europe S.a r.l.

1. Date of Board Resolution: 115/05/12 (May 12, 2026) 2. Source of Capital Increase Funds: 100% cash capital increase by this company 3. Whether to adopt a global registration for new share issuance (Yes, please specify the planned issuance period / No): No 4. Total project issuance amount and number of shares (if capital increase from retained earnings or reserves, the number of shares issued does not include those allocated to employees): (1) Total issuance amount: EUR 70,000,000 (2) Total number of shares issued: Not applicable 5. For global registration of new share issuance, current issuance amount and number of shares: Not applicable 6. For global registration of new share issuance, remaining amount and number of shares after this issuance: Not applicable 7. Par value per share: Not applicable 8. Issuance price: Not applicable 9. Number of shares subscribed by employees or allocated amount: Not applicable 10. Number of shares for public offering: Not applicable 11. Subscription ratio for original shareholders or gratuitous allocation: Not applicable 12. Handling of fractional shares and unexercised shares: Not applicable 13. Rights and obligations of new shares issued this time: Not applicable 14. Use of funds from this capital increase: Required for group fund management 15. Other matters to be noted: Capital increase base date: 115/05/12 (May 12, 2026)