TSMC Common Share Ex-dividend Date July 15th

Hsinchu, Taiwan, R.O.C. - June 30, 2009 -- TSMC (TWSE: 2330, NYSE: TSM) today announced that the ex-dividend date for TSMC common shares shall be July 15, 2009. The dividends include a cash dividend of NT$2.99989241 for each common share and a stock distribution of 4.99982072 shares per 1,000 common shares.

The above-mentioned dividends were calculated based on the dividend distribution, as approved by the Company’s shareholder meeting on June 10, 2009, and the actual number of common shares outstanding on the record date for the distribution. As a result of the employee stock options exercised between the day the Company’s board proposed said dividend distribution, and the record date of the distribution, the total number of outstanding common shares has increased slightly, resulting in a miniscule difference in the per-share dividends from the per-share numbers proposed by the Company’s board on February 10, 2009.