TSMC Monthly Sales Report - May 2003

Hsinchu, Taiwan, June 9, 2003 - Taiwan Semiconductor Manufacturing Company Ltd. (“TSMC” or “the Company”) (TAIEX: 2330, NYSE: TSM), today announced that net sales for May 2003 totaled NT$16,812 million, representing a 10.1 percent increase over April 2003. On a year-over-year basis, net sales for May 2003 increased 10.6 percent. Revenues for January through May 2003 totaled NT$71,401 million, an increase of 10.9 percent over the same period in 2002.

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

Sales Report: (Unit: NT$ million)

Net Sales

2003(1)

2002

Growth

May

16,812

15,201

10.6%

January through May

71,401

64,357

10.9%

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