Macronix: Announcement on the Order of Machinery and Equipment

1. Name and nature of the subject matter (e.g., land located in XX section, XX subsection, North District, Taichung City): Machinery and equipment 2. Date of occurrence of the event: 115/5/5~115/5/5 3. Date of board of directors' resolution: Not applicable 4. Other approval dates: Approval level: Handled according to the company's approval authority regulations. May 5, 115 (Republic of China calendar). 5. Quantity of transaction (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Transaction quantity: one batch; Total transaction amount: NTD 1,906,819 thousand 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, disclosure of their name may be omitted): KLA CORPORATION; non-related party 7. If the counterparty to the transaction is a related party, the reason for selecting the related party as the transaction object, the previous owner of the transferred asset, the relationship between the previous owner and the company and the counterparty, the previous transfer date, and the transfer amount should also be announced: Not applicable 8. If the owner of the transaction target within the past five years has been a related party of the company, the acquisition and disposal dates, prices, and the relationship with the company at the time of the transaction should also be announced: Not applicable 9. Estimated disposal gain (or loss) (not applicable to asset acquisition) (for deferred cases, a list explaining recognition should be provided): Not applicable 10. Delivery or payment terms (including payment period and amount), contract restriction clauses, and other important agreements: Payment according to order terms 11. Method of determining this transaction (e.g., tender, price comparison, or negotiation), reference basis for price determination, and decision-making unit: Price comparison and negotiation; based on the quotation provided by the manufacturer and market conditions; handled according to the company's approval authority regulations. 12. Name of professional appraiser firm or company and its appraisal amount: Not applicable 13. Name of professional appraiser: Not applicable 14. Professional appraiser's license number: Not applicable 15. Whether the appraisal report is a limited price, specific price, or special price: No or not applicable 16. Whether the appraisal report has not yet been obtained: No or not applicable 17. Reason for not yet obtaining the appraisal report: Not applicable 18. If there is a significant difference in the appraisal results, the reason for the difference and the auditor's opinion: Not applicable 19. Name of accounting firm: Not applicable 20. Name of accountant: Not applicable 21. Accountant's license number: Not applicable 22. Broker and brokerage fees: Not applicable 23. Specific purpose or use of acquisition or disposal: For production 24. Opinions of directors who expressed dissenting opinions on this transaction: Not applicable 25. This transaction is a related party transaction: No 26. Date of approval by supervisors or audit committee: Not applicable 27. This transaction involves acquiring real estate or its right-of-use assets from a related party: No 28. Price evaluated according to Article 16 of the "Regulations Governing the Acquisition or Disposal of Assets by Public Companies": Not applicable 29. If the price evaluated in the preceding paragraph is lower than the transaction price, the price evaluated according to Article 17 of the same regulations: Not applicable 30. Date of previous material information announcement for the same event: Not applicable 31. Other matters to be specified: None. Keywords: Material Information