3711 ASE Holding

Announcement Date: 1150709 Statement Date: 1150708 Statement Time: 145439 Company Code: 3711 Company Name: ASE Holding Subject: Announcement on behalf of subsidiary Silicon Precision Industries Co., Ltd. regarding acquisition of factory engineering project Compliance Clause: Article 20 Factual Date: 1150708

1. Type of Contract: Factory Engineering

2. Factual Date: July 2, 115 to July 8, 115

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by General Manager July 8, 115

5. Contract Counterparty and Relationship with Company: Sunny Tech Engineering Co., Ltd. Relationship with Company: None

6. Main Contents of Contract (including total contract value, expected investment amount, contract start and end dates), restrictive clauses, and other important terms: Total Value: NT$678,820,000 Contract Period: July 2, 115 to October 31, 116 Restrictive Clauses and Other Important Terms: None

7. Name of Professional Appraisal Firm or Company and Appraisal Result: Not applicable

8. Name of Real Estate Appraiser: Not applicable

9. License Number of Real Estate Appraiser: Not applicable

10. Specific Purpose of Acquisition: For production and operational use

11. Dissenting Director's Opinion on This Transaction: None

12. Whether This Transaction is a Related-Party Transaction: No

13. Date of Supervisor's Approval or Audit Committee's Consent: Not applicable

14. Whether the Appraisal Report is at a Limited, Specific, or Special Price: No or Not applicable

15. Whether Appraisal Report Has Not Yet Been Obtained: No or Not applicable

16. Reason for Not Yet Obtaining Appraisal Report: Not applicable

17. Reasons for Significant Differences in Appraisal Results and Auditor's Opinion: Not applicable

18. Name of Auditor's Firm: Not applicable

19. Name of Auditor: Not applicable

20. Auditor's License Number: Not applicable

21. Previous Date of Material Information Disclosure on the Same Event: Not applicable

22. Other Explanatory Matters: None