TSMC Monthly Sales Report - March 2003

Hsinchu, Taiwan, April 9, 2003– Taiwan Semiconductor Manufacturing Company Ltd. (“TSMC” or “the Company”) (TAIEX: 2330, NYSE: TSM), today announced that net sales for March 2003 totaled NT$13,851 million, representing a 12.2 percent increase over February 2003. On a year-over-year basis, net sales for March 2003 increased 12.8 percent. Revenues for January through March 2003 totaled NT$39,325 million, an increase of 9.9 percent over the same period in 2002.

Mr. Harvey Chang, TSMC spokesperson and senior vice president, said TSMC’s revenue has clearly touched bottom in the first quarter of 2003. The revenue growth for March 2003 was mainly due to increased wafer shipments and increased demand for advanced technologies, including the Company’s 0.13-micron process technology. Mr. Chang added that the monthly sales for the second quarter of 2003 are expected to increase sequentially.

Sales Report: (Unit: NT$ million)

Net Sales

2003(1)

2002

Growth

March

13,851

12,277

12.8%

January through March

39,325

35,790

9.9%

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