1

2 Consolidated financials include: DEI + DIH + DNI – Inter-company Interim consolidated numbers are internal figures and reviewed by CPA Consolidated numbers are audited only at yearend

First Quarter Results

4 Revenues Unit: NT$ billion

5 4Q03 1Q04 Revenues by Product

6 Gross Profit Unit: NT$ billion & % of sales

7 R&D Expense Unit: NT$ billion & % of sales

8 SG&A Expense Unit: NT$ billion & % of sales

9 Operating Expense Unit: NT$ billion & % of sales

10 Operating Profit Unit: NT$ billion & % of sales

11 Non-Operating Profit Unit: NT$ billion & % of sales

12 Non-Operating Income Breakdown Unit: NT$ million

13 Net Income Before Tax Unit: NT$ billion & % of sales

14 Tax Benefit & Minority Interest Unit: NT$ million

15 Net Income After Tax Unit: NT$ billion & % of sales

16 EPS (unit: NT$) * ALL EPS fully diluted at current shares outstanding of 1,480 million shares.

17 FY2004 Consolidated Financial Forecast

DEI forecast Sales 44,070 Operating income 178 Non-operating income5,791 Non-operating expense 57 Pre-tax profit5,913 Tax credit 456 Net income6,369 Unit: NT$ million

19 Consolidated Revenues Unit: NT$ billion +10.6%

20 Revenues by Product 2003A2004F

21 Gross Profit Unit: NT$ billion & % of sales

22 R&D Expense Unit: NT$ billion & % of sales

23 SG&A Expense Unit: NT$ billion & % of sales

24 Operating Expense Unit: NT$ billion & % of sales

25 Operating Profit Unit: NT$ billion & % of sales +20.5%

26 Non-Operating Profit Unit: NT$ billion & % of sales

27 Non-Operating Income Breakdown Unit: NT$ million

28 Net Income After Tax Unit: NT$ billion & % of sales +22.1%

29 Pre-diluted EPS * * Current shares outstanding is 1,480 million shares.

30 Diluted EPS * * Using assumed capital of 1,586 million shares.

31 THANK YOU !