Announcements for Market Observation Post of Taiwan Stock Exchange Corporation – Material Information of Analyst and Institutional Investor Meeting

(1) Unofficial Financial Statement for the First Half Year of 2004

Net revenue for the half year ended June 30, 2004 was NT$4.27 billion. Product shipments have increased significantly over the same period in 2003.

Gross margin was between 43% - 43.5%.

Earnings per share (EPS) after tax is estimated to be around NT$1.5.

Independently audited financial results for the first half of 2004 will be announced before the end of August 2004.

(2) Outlook for the third quarter 2004

Revenue for July 2004 will be over NT$900M, up approximately 30% over June 2004 revenue.

Legacy products, Audio Codecs, 10/100M Fast Ethernet, Switches, etc., have shown increased market share and were responsible for the bulk of our July revenue. Details will be announced on August 5.

Our new Wireless LAN 802.11g and 802.11a/g/b combo products passed Wi-Fi Certification. For the third quarter, the traditional peak period, we forecast revenue will be higher than the second quarter 2004. Fourth quarter legacy product revenue is expected to continue growing. In addition, new products (Wireless LAN, Gigabit Ethernet, and LCD controllers) will continue to increase their contribution.