TSMC August 2006 Sales Report

Hsinchu, Taiwan, R.O.C. – September 8, 2006 - TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for August 2006: on an unconsolidated basis, sales were NT$27,000 million, a decrease of 2.1 percent from July 2006 and an increase of 16.5 percent over August 2005. Revenues for January through August 2006 totaled NT$213,087 million, an increase of 34.7 percent over the same period in 2005.

On a consolidated basis, net sales for August 2006 were NT$ 27,284 million, a decrease of 2.4 percent from July 2006; revenues for January through August 2006 totaled NT$ 215,253 million.