TSMC May 2007 Sales Report

Hsinchu, Taiwan, R.O.C. – June 8, 2007 - TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for May 2007: on an unconsolidated basis, sales were NT$25,093 million, an increase of 11.5 percent over April 2007 and a decrease of 6.3 percent from May 2006. Revenues for January through May 2007 totaled NT$110,953 million, a decrease of 15.4 percent compared to the same period in 2006.

On a consolidated basis, net sales for May 2007 were NT$ 25,712 million, an increase of 11.3 percent over April 2007 and a decrease of 5.2 percent from May 2006; revenues for January through May 2007 totaled NT$113,703 million, a decrease of 14.1 percent compared to the same period in 2006.