【LianDe Holdings-KY】Announcement by Subsidiary Lemtech International Limited of Equity Acquisition

1. Name and nature of the target (for preferred shares, the agreed terms of issue such as dividend rate should also be specified): Lemtech Precision Material (Czech) s.r.o. equity 2. Date of occurrence of the event: 2026/5/13~2026/5/13 3. Date of board of directors' approval: May 13, 2026 4. Other approval dates: Not applicable 5. Transaction volume, unit price, and total transaction amount: Transaction unit volume, unit price: Not applicable Total transaction amount: Approximately USD 9,100,000 (actual transaction amount subject to exchange rate on transaction date) 6. Counterparty to the transaction and its relationship with the company (if the counterparty is a natural person and not a related party of the company, their name may be omitted): Counterparty: Lemtech Precision Material (China) Co., Ltd. Relationship with the company: Both Lemtech International Limited and Lemtech Precision Material (China) Co., Ltd. are 100% owned subsidiaries of the parent company, LianDe Holdings. 7. If the counterparty to the transaction is a related party, the reason for selecting the related party as the transaction counterparty, the previous owner, the relationship between the previous owner and the company and the transaction counterparty, the previous transfer date, and the transfer amount should also be disclosed: Not applicable 8. If the ownership of the transaction target has been held by 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 disclosed: Not applicable 9. Matters related to the disposal of claims (including types of collateral attached to the claims, and if the claims to be disposed of belong to related parties, the names of the related parties and the book value of the claims to be disposed of should also be disclosed): Not applicable 10. Disposal gains (or losses) (not applicable for acquisition of securities) (for deferred items, a table should be provided to explain recognition): Not applicable 11. Delivery or payment terms (including payment period and amount), restrictive clauses, and other important agreed matters: Payment according to investment schedule 12. Method of determining this transaction, basis for determining the price, and decision-making unit: Method of determining the transaction and basis for determining the price: Authorized by the company's board of directors to be handled entirely by the chairman in accordance with laws and regulations and the company's relevant internal operating procedures. Decision-making unit: The company's board of directors 13. Net asset value per share of the target company for acquisition or disposal of securities: Not applicable 14. As of now, the cumulative number, amount, shareholding ratio, and restrictions on rights (e.g., pledge status) of the securities involved in this transaction (including this transaction): Cumulative number held: Not applicable Cumulative amount held: USD 9.1 million (actual amount subject to exchange rate on transaction date) Shareholding ratio: 100% Restrictions on rights: None 15. As of now, the proportion of investment in securities (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to the company's total assets and owner's equity attributable to the parent company in the latest financial report, and the working capital in the latest financial report (Note 2): Proportion to total assets: 3.37% Proportion to owner's equity: 6.98% Working capital in the latest financial report: NT$2,178,310 thousand 16. Broker and brokerage fees: None 17. Specific purpose or use of acquisition or disposal: Long-term investment 18. Opinions of directors who expressed dissent to this transaction: None 19. Is this transaction a related party transaction: Yes 20. Date of approval by supervisor or audit committee: May 13, 2026 21. Did the accountant issue an unreasonable opinion on this transaction: No 22. Name of accounting firm: Not applicable 23. Name of accountant: Not applicable 24. License number of accountant: Not applicable 25. Does it involve a change in operating model: No 26. Explanation of change in operating model: Not applicable 27. Transaction status with the counterparty in the past year and estimated next year: Not applicable 28. Source of funds: Self-owned funds of Lemtech International Limited 29. Date of previous material information disclosure on the same event: Not applicable 30. Other matters to be stated: This announcement is calculated based on an exchange rate of USD/NTD 31.5