TSMC Monthly Sales Report – February 2004

Hsinchu, Taiwan, March 9, 2004 - Taiwan Semiconductor Manufacturing Company Ltd. (TSMC) (“the Company”) (TAIEX: 2330, NYSE: TSM) today announced that net sales for February 2004 totaled NT$18,385 million; revenues for January through February 2004 were NT$37,541 million.

Ms. Lora Ho, TSMC vice president and chief financial officer, noted that, “Because February was a short month, unit sales in February 2004 were less than those in January. As a result, net sales for February 2004 decreased by a slight 4.0% compared to January 2004. On a year-over-year basis, net sales for February 2004 increased 48.9%. The Company’s first quarter 2004 guidance, which was announced on January 29, remains unchanged.”

Sales Report: (Unit: NT$ million)

Net Sales

2004(1)

2003

Growth Rate

February

18,385

12,345

48.9%

January through February

37,541

25,474

47.4%

(1): Year 2004 figures have not been audited.