TSMC Monthly Sales Report - July 2005

Hsinchu, Taiwan, R.O.C. – August 9, 2005 -- TSMC (TAIEX: 2330, NYSE: TSM) today announced that net sales for July 2005 totaled NT$20,847 million, and that revenues for January through July 2005 were NT$135,017 million.

Ms. Lora Ho, TSMC vice president and chief financial officer, noted that, “Due to continued demand recovery from our customers, wafer shipments for July 2005 increased over June 2005. As a result, net sales for July 2005 increased by 3.7 percent compared to June 2005. On a year-over-year basis, net sales for July 2005 decreased 9.9 percent.”

Sales Report: (Unit: NT$ million)

Net Sales

2005(1)

2004

Increase (Decrease) %

July

20,847

23,148

(9.9)

January through July

135,017

145,530

(7.2)

(1): Year 2005 figures have not been audited.