3711 ASE Group

Disclosure Date: 1150707 Statement Date: 1150706 Statement Time: 162149 Company Code: 3711 Company Name: ASE Group Subject: Announcement on behalf of subsidiary ASE Semiconductor Manufacturing (Corp.) regarding the acquisition of machinery and equipment for operational use from Win Semiconductor Corporation Compliance Clause: Clause 20 Date of Event: 1150706 Details: 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 Event: 114/7/21 ~ 115/7/6 3. Board approval date: Not applicable 4. Other approval dates: Approval level: Approved by General Manager, 115/07/06 5. Quantity of units (e.g., XX square meters, converted to XX ping), unit price, and total transaction amount: Quantity: One batch, Unit price: NT$1,044,640,000 (excluding tax), Total transaction amount: NT$1,044,640,000 (excluding tax) 6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted): Counterparty: Win Semiconductor Corporation, Relationship with company: None 7. If the counterparty is a related party, state the reason for selecting them, previous owner, relationship among previous owner, company, and counterparty, transfer date, and amount: Not applicable 8. If the asset’s owner within the past five years was a related party of the company, disclose the related party’s acquisition/disposal date, price, and relationship with the company at the time: Not applicable 9. Estimated gain (or loss) (not applicable for asset acquisition) (deferred gains shall be listed and explained): Not applicable 10. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Delivery/payment terms: Wire transfer or letter of credit, Contractual restrictions: None, Other important agreements: None 11. Transaction decision method (e.g., bidding, comparison, negotiation), basis for price determination, and decision-making unit: Decision method and pricing basis: Comparison and negotiation, Decision-making unit: As per the company’s authorization rules 12. Name of appraisal firm/company and appraisal amount: Not applicable 13. Name of professional appraiser: Not applicable 14. Appraiser license number: Not applicable 15. Whether appraisal report is for restricted, specific, or special price: No or not applicable 16. Whether appraisal report not yet obtained: No or not applicable 17. Reason for not obtaining appraisal report: Not applicable 18. Reasons for significant differences in appraisal results and auditor’s opinion: Not applicable 19. Auditor firm name: Not applicable 20. Auditor name: Not applicable 21. Auditor license number: Not applicable 22. Broker and brokerage fees: None 23. Specific purpose or use of acquisition or disposal: For production and operational use 24. Dissenting director’s opinion on 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 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 if the price in the previous item is lower than transaction price: Not applicable 30. Previous date of material information disclosure on the same event: Not applicable 31. Other explanatory matters: None