Title   ASE Test Q1 2006 Earnings Report
Date   Friday April 28, 9:00 am ET                                                       

Memo

- Q1 Revenues: $127.3m (2% QoQ, 38% YoY)
- Q1 Net Profit: $20.1m (US GAAP), $26.9m (ROC GAAP)
- Gross profit margin: 37% (vs 39% in Q4, 4% in Q105)
- Operating margin: 25% (vs 24% in Q4 & -14.1% in Q105)

Highlights
=========
As a percentage of the Company's net revenues, testing revenues accounted for 84% and IC packaging revenues accounted for 16% for this quarter.

Business Outlook
================
The Company currently expects its total net revenues in the second quarter of 2006 to increase by mid-single digit percentage sequentially. Testing revenues are expected to increase by low-single digit percentage, and packaging revenues are expected to increase by mid-teens percentage. Assuming the above revenue increase, the Company expects its gross margin in 2Q06 increase by approximately one percentage point to 38%. Given the current forecast, the Company plans to spend around $10 million on the purchase or lease of additional testing equipment for the second quarter of 2006. This level of spending will be adjusted based on actual business conditions.