Unimicron Acquires Facility Engineering Assets

1. Name and nature of the subject matter (e.g., land located in Section XX, Subsection XX, North District, Taichung City): Facility Engineering

2. Date of occurrence: 115/1/23 ~ 115/8/25

3. Board approval date: Not applicable

4. Other approval dates: Approval level: Approved by Chairman January 25, 115

5. Quantity of transaction units (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Quantity: One batch; Total transaction amount: NT$307,654,000

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party of the company, name disclosure may be omitted): Teng Yuan Engineering Co., Ltd.; Non-related party

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

8. If the subject asset had an owner who was a related party of the company within the past five years, disclose the date, price, and relationship with the company at the time of acquisition and disposal: 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 period and amount), contractual restrictions, and other important agreements: Payment according to order terms. Contractual restrictions and other important agreements: None

11. Method of determining this transaction (e.g., bidding, price comparison, or negotiation), reference basis for price determination, and decision-making unit: Transaction determination method: Negotiated pricing Reference basis for price determination: Market conditions Decision-making unit: Determined according to company procurement management regulations

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 the appraisal report has not yet been obtained: No or Not applicable

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

18. Reasons for significant differences in appraisal results and auditor's opinion: Not applicable

19. Name of auditor firm: Not applicable

20. Name of auditor: Not applicable

21. License number of auditor: Not applicable

22. Broker and brokerage fees: Not applicable

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

24. Opinions of directors who objected to this transaction: Not applicable

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

26. Date of supervisor approval or audit committee consent: Not applicable

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

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

29. Valuation amount under Article 17 of the same rules 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