June 21, Record Date for Stock Dividend

Science-Based Industrial Park, Hsin-Chu, Taiwan - Taiwan Semiconductor Manufacturing Company (TSMC) (NYSE: TSM) had announced that its application for a capital increase to effect a stock dividend as approved at TSMC's 1998 Shareholders' Meeting on May 12, 1998 has been approved by the ROC SFC, and that the record date for this dividend will be June 21, 1998. TSMC shareholders will be entitled to receive a dividend of 0.45 shares of TSMC common stock for each share of TSMC common stock held of record on that date.

The ex-dividend date will be June 15, and the cut-off time for requesting stock transfers prior to the record date will be 5:00pm, Taiwan time, on June 16, 1998. In accordance with ROC Company Act No.165, TSMC's stock registry will be closed for transfers from June 17 to June 21, 1998. This stock dividend is expected to be paid on or about August 10, 1998.