TSMC September 2005 Sales Set Record High

Hsinchu, Taiwan, R.O.C. – October 7, 2005 -- TSMC (TAIEX: 2330, NYSE: TSM) today announced that net sales for September 2005 reached a record high of NT$25,229 million, and that revenues for January through September 2005 were NT$183,427 million.

Ms. Lora Ho, TSMC vice president and chief financial officer, noted that, “Due to continued demand recovery from our customers, wafer shipments for September 2005 increased over August 2005. As a result, net sales for September 2005 increased by 8.8 percent compared to August 2005. On a year-over-year basis, net sales for September 2005 increased 8.9 percent.”

Sales Report: (Unit: NT$ million)

Net Sales

2005(1)

2004

Increase (Decrease) %

September

25,229

23,174

8.9

January through September

183,427

192,117

(4.5)

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