TSMC July 2006 Sales Report

Hsinchu, Taiwan, R.O.C. - August 10, 2006 - TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for July 2006: on an unconsolidated basis, sales were NT$27,567 million, an increase of 1.0 percent over June 2006 and an increase of 32.2 percent over July 2005. Revenues for January through July 2006 totaled NT$186,087 million, an increase of 37.8 percent over the same period in 2005.

On a consolidated basis, net sales for July 2006 were NT$ 27,959 million, an increase of 1.1 percent over June 2006; revenues for January through July 2006 totaled NT$ 187,968 million.