ASE Holdings Announces Subsidiary's Acquisition of Operating Machinery and Equipment from Wanhui Technology Co., Ltd.

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

2. Date of occurrence: 115/5/20 ~ 115/6/29

3. Board approval date: Not applicable

4. Other approval dates: Approval level: Approved by the General Manager Republic of China Year 115, June 29

5. Quantity of transaction units (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Transaction quantity: One batch Unit price: NT$1,239,820 thousand (excluding tax) Cumulative total transaction amount: NT$1,239,820 thousand (excluding tax)

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): Counterparty: Wanhui Technology 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 transfer amount: Not applicable

8. If the ownership of the transaction subject was held by a related party of the company within the past five years, disclose 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) from disposal (not applicable for asset acquisition) (if deferred, provide a table showing recognition): Not applicable

10. Delivery or payment terms (including payment period and amount), contractual restrictive clauses, and other important agreements: Delivery or payment terms: Payment by telegraphic transfer or letter of credit Contractual restrictive clauses: None Other important agreements: None

11. Method of determining the transaction (e.g., bidding, price comparison, or negotiation), reference basis for price determination, and decision-making unit: Method of transaction determination and price reference basis: Price comparison and negotiation Decision-making unit: Handled according to the company's approval authority 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 indicates a limited price, specific price, or special price: No or not applicable

16. Whether an 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, 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 fee: None

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

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

25. Whether the transaction is a related-party transaction: No

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

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

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

29. Valuation price 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