TSMC May 2012 Sales Report

Hsinchu, Taiwan, R.O.C. – June 8, 2012 - TSMC (TWSE: 2330, NYSE: TSM) today announced its net sales for May 2012: On an unconsolidated basis, net sales were approximately NT$43.62 billion, an increase of 9 percent over April 2012 and an increase of 21.3 percent over May 2011. Revenues for January through May 2012 totaled NT$187.88 billion, an increase of 7.5 percent compared to the same period in 2011.

On a consolidated basis, net sales for May 2012 were approximately NT$44.14 billion, an increase of 9 percent over April 2012 and an increase of 20.2 percent over May 2011. Consolidated revenues for January through May 2012 totaled NT$190.14 billion, an increase of 6.1 percent compared to the same period in 2011.