TSMC Payment Day of Stock Dividend for NYSE-listed ADSs

Science-Based Industrial Park, Hsin-Chu, Taiwan, July 19, 2001 — Taiwan Semiconductor Manufacturing Company Ltd. (“TSMC” or the “Company”) (TAIEX:2330, NYSE:TSM) announced details in respect to the payment date of its previously-announced 40% stock dividend that related to its NYSE-listed American Depositary Shares (“ADSs”) to be July 27, 2001.

The record date for ADSs entitled to participate in this stock dividend is June 28, 2001. The ADS ex-dividend date is June 26, 2001. The distribution date with respect to the upcoming stock dividend is expected to be July 27, 2001 for the ADSs (and July 23 for the common shares) respectively. Holders of ADSs are encouraged to check with their securities brokers for the receipt of the stock dividend in their own accounts.

Any questions regarding this stock dividend issue may be directed to,

TSMC Investor Relations Tel:886-3-567-2664 EMail:Invest@tsmc.com.tw