[Powertech] Announcement by subsidiary TeraPower Technology Inc. regarding the order of machinery and equipment

1. Name and nature of the target (e.g., land in XX section, XX subsection, North District, Taichung City): Testing equipment. 2. Date of occurrence of the event: 2026/1/19~2026/4/9. 3. Date of board resolution: Not applicable. 4. Other approval dates: Approval level: Chairman. April 9, 2026. 5. Quantity of transaction units (e.g., XX square meters, equivalent to XX ping), price per unit, and total transaction amount: One batch; Total transaction amount: NT$3,066,585,329. 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, their name may be omitted): Advantest Corporation; 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, the company, and the counterparty, the date of previous transfer, and the transfer amount shall be announced: Not applicable. 8. If the owner of the transaction target has been a related party of the company within the past five years, the acquisition and disposal dates, prices, and relationship with the company at the time of the transaction shall be announced: Not applicable. 9. Estimated disposal profit (or loss) (not applicable to asset acquisition) (for deferred items, a table explaining the recognition status should be provided): Not applicable. 10. Delivery or payment terms (including payment period and amount), contract restrictions, and other important agreements: Payment terms are as specified in the procurement contract (purchase order). 11. Method of determining this transaction (e.g., tender, price comparison, or negotiation), basis for price determination, and decision-making unit: Price comparison and negotiation conducted according to the company's procurement-related procedures, and procurement proceeded after approval by the responsible supervisor. 12. Name of professional appraiser's office or company and its appraisal amount: Not applicable. 13. Name of professional appraiser: Not applicable. 14. Professional appraiser's license number: Not applicable. 15. Is the appraisal report for a limited price, specific price, or special price: No or not applicable. 16. Has the appraisal report not yet been obtained: Yes. 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 accountant'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 operational production use. 24. Opinions of directors who expressed dissent to this transaction: Not applicable. 25. Is this transaction a related party transaction: No. 26. Date of approval by supervisors or audit committee: Not applicable. 27. Is this transaction an acquisition of 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 item 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.