ASE Holding Announces Subsidiary's Acquisition of Production Equipment Exceeding NT$1 Billion

Release Date: July 18, 115 Statement Date: July 17, 115 Statement Time: 19:05:39 Company Code: 3711 Company Name: ASE Holding Subject: Announcement on Behalf of Subsidiary Siliconware Precision Industries Co., Ltd. Regarding Acquisition of Operational Machinery and Equipment Exceeding Ten Billion New Taiwan Dollars Compliance Clause: Clause 20 Date of Occurrence: July 17, 115

Details:

1. Name and Nature of the Subject Matter (e.g., land located in Section XX, Subsection XX, North District, Taichung City): Operational machinery and equipment

2. Date of Occurrence: June 17, 115 – July 17, 115

3. Board Approval Date: Not applicable

4. Other Decision Dates: Decision Level: Approved by General Manager July 17, 115

5. Quantity of Transaction Units (e.g., XX square meters, equivalent to XX ping), Unit Price, and Total Transaction Amount: Acquired 10 batches, Average unit price per batch: NT$100,557,150, Total transaction amount: NT$1,005,571,500.

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: Superpower Technology Co., Ltd.; Relationship with the company: None

7. If the counterparty is a related party, the reason for selecting the related party as the transaction counterparty, the previous owner of the asset, the relationship between the previous owner, the company, and the counterparty, the previous transfer date, and the transfer amount shall also be disclosed: Not applicable

8. If the owner of the transaction subject within the past five years was a related party of the company, the date, price, and relationship with the company at the time of acquisition and disposal by the related party shall also be disclosed: Not applicable

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

10. Delivery or payment terms (including payment period and amount), contractual restrictive clauses, and other important agreements: Wire transfer. Contractual restrictive clauses: None. Other important agreements: None.

11. Decision method for this transaction (e.g., bidding, comparison, or negotiation), reference basis for price determination, and decision-making unit: Transaction decision method: Comparison/negotiation. Reference basis for price determination: Based on historical transaction data and market conditions. Decision-making unit: Decided according to internal company approval authority.

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: No or not applicable

17. Reason for not yet 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. Auditor license number: Not applicable

22. Broker and brokerage fees: None

23. Specific purpose or use of the acquisition or disposal: For business operations

24. Opinion of directors who expressed dissent on this transaction: None

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

26. Date of auditor's approval or audit committee's consent: Not applicable

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

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

29. Evaluation price under Article 17 of the same rules if the evaluation price 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