Taiwan Semiconductor Manufacturing Company Limited Stock Dividend Details for Common shares and ADSs

Hsinchu, Taiwan, June 8, 2001– Taiwan Semiconductor Manufacturing Company Ltd. (“ TSMC” or “ the Company” ) (TAIEX: 2330, NYSE: TSM) announced details in respect of its previously-announced 40% stock dividend that relate to its TSE-listed common shares and NYSE-listed American Depositary Shares (“ADSs”).

The Company set the ex-dividend date and record date for TSMC common shares listed and traded on the Taiwan Stock Exchange to be June 26 and July 2, 2001, respectively. The Company’s common share transfer books will be closed for transfers from June 28 through July 2, 2001. The record date for ADSs entitled to participate in this stock dividend will be June 28, 2001 and the ADSs ex-dividend date will be June 26, 2001.

The common share distribution date with respect to the upcoming stock dividend is expected to be on or about late July, 2001. The actual distribution date is subject to ROC regulatory approvals. The ADSs distribution date will be about one to two weeks after the common share dividend is distributed. The Company will separately announce the distribution dates for common share and ADSs as soon as they become available.

No fractional ADSs will be issued in connection with this stock dividend. Any fractional shares or shares in lots of less than five (which is the number of shares represented by each ADS) that otherwise would be issuable in respect of shares represented by each ADSs in connection with this stock dividend will be disregarded and not issued. Similarly, no fractional shares will be issued in respect of TSMC shares listed and traded on the Taiwan Stock Exchange in connection with this stock dividend. However, holders of TSMC shares listed and traded on the Taiwan Stock Exchange may, in private transactions, aggregate their entitlements to fractional shares in order to have additional whole shares issued in connection with this stock dividend.

Any questions regarding this upcoming stock dividend may be directed to Public Relations (Tel: 886-3-5673338 or 5673347) or Investors Relations (Tel: 886-3-5672968 or 5672664).