TSMC Monthly Sales Report – April 2003

Hsinchu, Taiwan, May 8, 2003– Taiwan Semiconductor Manufacturing Company Ltd. (“TSMC” or “the Company”) (TAIEX: 2330, NYSE: TSM), today announced that net sales for April 2003 totaled NT$15,264 million, representing a 10.2 percent increase over March 2003. On a year-over-year basis, net sales for April 2003 increased 14.2 percent. Revenues for January through April 2003 totaled NT$54,590 million, an increase of 11.1 percent over the same period in 2002.

Mr. Harvey Chang, TSMC spokesperson and senior vice president, noted that customer demand continues to grow. The Company’s sales revenues for April 2003 increased as a result of increased wafer shipment and better product mix.

Sales Report: (Unit: NT$ million)

Net Sales

2003(1)

2002

Growth

April

15,264

13,366

14.2%

January through April

54,590

49,156

11.1%

(1): Year 2003 figures have not been audited.