【Yageo*】Announcement by subsidiary Dongguan Chilisin Electronics Co., Ltd. regarding the acquisition of wealth management products

1. Name and nature of the subject matter (for preferred shares, the agreed terms of issuance such as dividend rate should also be specified): China Construction Bank structured wealth management products 2. Date of occurrence of the event: 2026/2/5~2026/4/8 3. Date of board of directors' approval: Not applicable 4. Other approval dates: Approval level: Not applicable April 8, 2026 5. Transaction quantity, price per unit, and total transaction amount: Transaction unit quantity, price per unit: None Total transaction amount: RMB 80,000,000 6. Counterparty of the transaction and its relationship with the company (if the counterparty is a natural person and not a related party of the company, disclosure of their name may be omitted): Counterparty: China Construction Bank Relationship with the company: None 7. If the counterparty is a related party, the reason for selecting the related party as the transaction object, the previous owner, the relationship between the previous owner and the company and the counterparty, the date of the previous transfer, and the transfer amount should also be announced: Not applicable 8. If the owner of the transaction subject matter has been a related party of the company within the past five years, the related party's acquisition and disposal dates, prices, and relationship with the company at the time of the transaction should also be announced: Not applicable 9. Matters related to the disposal of claims (including the type of collateral attached to the claims, and if the disposed claims include claims against related parties, the name of the related party and the book value of the claims against that related party should also be announced): Not applicable 10. Disposal gain (or loss) (not applicable for acquisition of marketable securities) (for deferred items, a table should be provided to explain the recognition status): Not applicable 11. Delivery or payment terms (including payment period and amount), contract restriction clauses, and other important agreements: One-time payment 12. Method of determining this transaction, reference basis for price determination, and decision-making unit: In accordance with the company's internal approval authority 13. Net value per share of the marketable securities target company: Not applicable 14. As of now, the cumulative quantity, amount, shareholding ratio, and restrictions on rights (such as pledge status) of this transaction security (including this transaction): Cumulative transaction amount: RMB 60,000,000 Restrictions on rights: None 15. As of now, the proportion of marketable securities investment (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Public Companies" to the total assets and equity attributable to owners of the parent company in the company's most recent financial report, and the amount of working capital in the most recent financial report (Note 2): Proportion to total assets: 0.08% Proportion to equity attributable to owners of the parent company: 0.16% Working capital in the most recent financial report: NT$-76,476,038 thousand 16. Broker and brokerage fees: Not applicable 17. Specific purpose or use of acquisition or disposal: Investment and financial management 18. Opinions of dissenting directors on this transaction: None 19. This transaction is a related party transaction: No 20. Date of supervisors' approval or audit committee's consent: Not applicable 21. The accountant issued an unreasonable opinion on this transaction: Not applicable 22. Name of accounting firm: Not applicable 23. Name of accountant: Not applicable 24. Accountant's practice certificate number: Not applicable 25. Whether it involves changes in operating model: No 26. Explanation of changes in operating model: Not applicable 27. Transaction status with the counterparty in the past year and expected next year: Not applicable 28. Source of funds: Not applicable 29. Date of previous material information announcement for the same event: Not applicable 30. Other explanatory matters: None