TSMC May 2010 Sales Report

Hsinchu, Taiwan, R.O.C. - June 10, 2010 - TSMC (TWSE: 2330, NYSE: TSM) today announced its net sales for May 2010: on an unconsolidated basis, net sales were approximately NT$33.84 billion, an increase of 3.5 percent over April 2010 and an increase of 38.3 percent over May 2009. Revenues for January through May 2010 totaled NT$155.7 billion, an increase of 85.8 percent compared to the same period in 2009.

On a consolidated basis, net sales for May 2010 were approximately NT$ 34.82 billion, an increase of 3.0 percent over April 2010 and an increase of 37.9 percent over May 2009. Revenues for January through May 2010 totaled NT$160.82 billion, an increase of 84.4 percent compared to the same period in 2009.