TSMC Monthly Sales Report - June 2005

Hsinchu, Taiwan, R.O.C. – July 7, 2005 -- TSMC (TAIEX: 2330, NYSE: TSM) today announced that net sales for June 2005 totaled NT$20,105 million, and that revenues for January through June 2005 were NT$114,169 million.

Ms. Lora Ho, TSMC vice president and chief financial officer, noted that, “Due to continued demand recovery from our customers, wafer shipments for June 2005 increased over May 2005. As a result, net sales for June 2005 increased by 3.1 percent compared to May 2005. On a year-over-year basis, net sales for June 2005 decreased 10.7 percent.”

Sales Report: (Unit: NT$ million)

Net Sales

2005(1)

2004

Increase (Decrease) %

June

20,105

22,519

(10.7)

January through June

114,169

122,382

(6.7)

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