Monthly Sales Report - January 2001

Hsinchu, Taiwan, January 9, 2001–Taiwan Semiconductor Manufacturing Company Ltd. (“ TSMC” or “ the Company” ) (TAIEX: 2330, NYSE: TSM), today announced that its net sales for January 2001 totaled NT$16,157 million, representing an increase of approximately 73.2% over January 2000 sales.

Ms. K. C. Chen, TSMC spokesperson, stated that the Company’s January 2001 net sales represented a decrease of 11% over December 2000. Ms. Chen attributed this month-to-month decline to a return of the global semiconductor market to a more normal pattern from the overheated market. The return has appeared since November 2000. However, the Company’s net sales for November and December 2000 reached new record high levels.

According to customers’ long-term forecast and their inventory status reports, the bottom of the downturn is expected to appear in March or April 2001. The cycle is expected to trend upward in the second half of 2001. TSMC is optimistic about the future direction of the semiconductor industry as a whole and the foundry business in particular.