[Nanya Technology] Announcement of the company's acquisition of machinery and equipment

1. Name and nature of the underlying asset: Machinery and equipment 2. Date of occurrence of the event: 2026/3/26~2026/5/15 3. Date of board of directors resolution: Not applicable 4. Date of other approval: Approval level: Chairman, May 15, 2026 5. Transaction unit quantity, price per unit, and total transaction amount: Quantity: One batch; Total transaction amount: Approximately NT$2,046,835,600 6. Transaction counterparty and its relationship with the company: ASM JAPAN K.K., Relationship with the company: None. 7. If the counterparty is a related party, reasons for choosing it...: Not applicable 8. If the owner of the subject matter within the past five years was a related party...: Not applicable 9. Expected disposal profit (or loss): Not applicable 10. Delivery or payment terms, restrictive clauses and other important covenants: Payment according to order terms 11. Method of deciding the transaction (tender, price comparison, or negotiation), reference basis for price decision and decision-making unit: Price comparison/negotiation: Based on quotes provided by the vendor and other vendors, and processed according to the company's authorization guidelines. 12. Name of professional appraiser and appraisal amount: Not applicable 13. Name of professional appraiser: Not applicable 14. Practice certificate number of professional appraiser: Not applicable 15. Is the appraisal report for a limited, specific, or special price: No or Not applicable 16. Has an appraisal report not yet been obtained: No or Not applicable 17. Reason for not yet obtaining an appraisal report: Not applicable 18. Reason for significant discrepancy in appraisal results and CPA opinion: Not applicable 19. Name of CPA firm: Not applicable 20. Name of CPA: Not applicable 21. Practice certificate number of CPA: Not applicable 22. Broker and brokerage fee: Not applicable 23. Specific purpose or use of acquisition or disposal: Production purposes 24. Dissenting opinions of directors to the present transaction: Not applicable 25. Is the present transaction a related party transaction: No 26. Date of approval by supervisors or the audit committee: Not applicable 27. Is this transaction acquiring real estate or right-of-use assets from a related party: No 28. Appraised price according to Article 16 of the Regulations: Not applicable 29. Appraised price according to Article 17 of the Regulations: Not applicable 30. Date of previous major message regarding the same event: Not applicable 31. Other matters to be specified: None