TSMC Monthly Sales Report – July 2002

Hsin-Chu, Taiwan, August 8, 2002– Taiwan Semiconductor Manufacturing Company Ltd. (“TSMC” or “the Company”) (TAIEX: 2330, NYSE: TSM) today announced that net sales for July 2002 totaled NT$13,536 million, while revenues from January to July 2002 were NT$93,508 million.

TSMC Spokesperson Mr. Harvey Chang noted that due to a decrease in unit sales and a change of product mix, net sales in July 2002 decreased 13.3 percent in comparison with June 2002. On a year-over-year basis, net sales increased 57.3 percent in July 2002 compared to the same period a year ago.

Sales Report: (Unit: NT$ million)

Net Sales

2002(1)

2001

Growth

July

13,536

8,604

57.3%

January through July

93,508

74,423

25.6%

(1): Year 2002 figures have not been audited.