TSMC February 2006 Sales Report

Hsinchu, Taiwan, R.O.C. - March 10, 2006 - TSMC (TAIEX: 2330, NYSE: TSM) today announced that net sales for February 2006 totaled NT$24,009 million, a decrease of 8.3 percent over January 2006. Revenues for January through February 2006 were NT$50,187 million.

Ms. Lora Ho, TSMC vice president and chief financial officer, noted that, “The sequential decline is mainly due to three fewer working days in February. On a year-over-year basis, net sales for February 2006 increased 39.6 percent.”