TSMC Monthly Sales Report – September 2001

Hsinchu, Taiwan, October 8, 2001– Taiwan Semiconductor Manufacturing Company Ltd. (“ TSMC” or “ the Company” ) (TAIEX: 2330, NYSE: TSM), today announced that net sales for September 2001 totaled NT$9,308 million, representing an increase of 3.1 percent over August 2001 sales. On a year-over-year basis, net sales declined 43.2 percent in September 2001 compared to the same period a year ago. Total net sales of NT$92,758 million represents a decrease of 17.5 percent for the January through September 2001 period, compared to the same period a year ago.

Ms. K. C. Chen, TSMC spokesperson and senior vice president, stated that the Company’s sales revenue has gradually improved in the third quarter of 2001. Third-quarter 2001 sales totaled NT$ 26,940 million, an increase of 2.4 percent over the second quarter of 2001.