PTI Announces Purchase of Equipment and Components

1. Name and nature of the subject matter (e.g., land located in Section XX, Subsection XX, North District, Taichung City): Machinery equipment and its spare parts.

2. Date of occurrence of fact: 09/23/2025 ~ 08/26/2026

3. Board approval date: Not applicable

4. Other approval dates: Approval level: Chairman August 26, 2026 (Minguo Year 115)

5. Quantity of transaction units (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: One batch; total transaction amount: NT$502,309,345.

6. Counterparty and its relationship with the company (if the counterparty is a natural person and not a related party of the company, name disclosure may be omitted): Kingway Enterprises Co., Ltd.; relationship with the company: None.

7. If the counterparty is a related party, state the reason for selecting the related party as the transaction party, the previous transferor, the relationship among the previous transferor, the company, and the counterparty, the previous transfer date, and the transfer amount: Not applicable.

8. If the owner of the transaction subject had been a related party of the company within the past five years, state the date of acquisition and disposal by the related party, price, and the relationship with the company at the time of transaction: Not applicable.

9. Estimated gain (or loss) on disposal (not applicable for asset acquisition) (if deferred, list recognition details): Not applicable.

10. Delivery or payment terms (including payment periods and amounts), contractual restrictions, and other important agreements: Payment terms shall be made according to the procurement contract (purchase order).

11. Decision method for this transaction (e.g., bidding, price comparison, or negotiation), reference basis for price determination, and decision-making unit: Price comparison and negotiation conducted in accordance with the company’s procurement procedures, followed by procurement after approval by authorized management.

12. Name of professional appraiser firm or company and appraisal amount: Not applicable.

13. Name of professional appraiser: Not applicable.

14. License number of professional appraiser: Not applicable.

15. Whether the appraisal report is for a limited price, specific price, or special price: No or Not applicable

16. Whether an appraisal report has not yet been obtained: Yes

17. Reason for not yet obtaining the appraisal report: Not applicable.

18. If there is a significant difference in appraisal results, state the reason and auditor's opinion: Not applicable.

19. Name of accounting firm: Not applicable.

20. Name of accountant: Not applicable.

21. License number of accountant: Not applicable.

22. Broker and brokerage fees: Not applicable.

23. Specific purpose or use of acquisition or disposal: For operational production use.

24. Opinion of any director who objected to this transaction: Not applicable.

25. This transaction is a related-party transaction: No

26. Date of auditor’s acknowledgment or audit committee approval: Not applicable

27. This transaction involves acquiring real estate or its right-of-use assets from a related party: No

28. Valuation price under Article 16 of the 'Asset Acquisition and Disposal Handling Standards for Publicly Issued Companies': Not applicable

29. Valuation price under Article 17 of the same standard, if the valuation under the previous item is lower than the transaction price: Not applicable

30. Previous date of material information disclosure regarding the same event: Not applicable

31. Other explanatory matters: None.