[Yageo*] Announcement on behalf of subsidiary Chilisin Electronics Corp. regarding capital injection into its subsidiary Chilisin Holding (Hong Kong) Limited

1. Name and nature of the subject matter (if preferred shares, specify the terms of issuance, such as dividend rate, etc.): Subsidiary Chilisin Holding (Hong Kong) Limited conducting a cash capital increase 2. Date of occurrence: 2026/04/22~2026/04/22 3. Date of board of directors resolution: April 22, 2026 4. Other approval dates: Not applicable 5. Transaction volume, unit price, and total transaction amount: USD 35,000,000 6. Counterparty and its relationship with the company (if the counterparty is a natural person and not a related party, the name may be omitted): Subsidiary 7. If the counterparty is a related party, announce the reason for choosing them, the previous owner, their relationship with the company and the counterparty, and the previous transfer date and amount: Subsidiary; Chilisin Holding (Hong Kong) Limited conducting a cash capital increase; Not applicable 8. If the owner of the transaction subject was a related party of the company within the past five years, announce the date and price of acquisition and disposal by the related party, and their relationship with the company at the time: Not applicable 9. Matters related to the disposal of claims (including the types of collaterals attached to the disposed claims; if the disposed claim is against a related party, announce the name of the related party and the book value of the claim disposed this time): Not applicable 10. Profit (or loss) from disposal (not applicable for acquiring securities) (previously deferred items should be tabulated to explain recognition status): Not applicable 11. Delivery or payment terms (including payment period and amount), restrictive covenants in the contract, and other important agreements: Remitted according to funding needs 12. Method of determining this transaction, reference basis for price determination, and decision-making unit: Board of directors resolution 13. Net worth per share of the subject company for acquired or disposed securities: Not applicable 14. Up to now, cumulative quantity, amount, shareholding ratio, and restriction on rights (such as pledges) of the traded securities held (including this transaction): (1) Cumulative holding amount: Approx. USD 119,999 thousand (2) Cumulative holding ratio: 95.78% (3) Restrictions on rights: None 15. Up to now, the ratio of securities investment (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to total assets and equity attributable to owners of the parent in the most recent financial statements, and the amount of working capital in the most recent financial statements (Note 2): Ratio to total assets: 1.06% Ratio to equity attributable to owners of the parent: 2.3% Working capital amount in the most recent financial statements: NTD -76,476,038 thousand 16. Broker and brokerage fee: Not applicable 17. Specific purpose or use of acquisition or disposal: Long-term investment 18. Dissenting opinions of directors regarding this transaction: None 19. Is this transaction a related party transaction: Yes 20. Date of approval by supervisors or audit committee: Not applicable 21. Did the CPA issue an unreasonable opinion on this transaction: Not applicable 22. Name of accounting firm: Not applicable 23. Name of CPA: Not applicable 24. CPA license number: Not applicable 25. Does it involve a change in business model: No 26. Explanation of business model change: Not applicable 27. Transactions with the counterparty in the past year and expected in the coming year: Not applicable 28. Source of funds: Not applicable 29. Date of previous material information released for the same event: Not applicable 30. Other matters to be specified: None