TSMC Facilities Successfully Transition Through Y2K RolloverNo Significant Y2K Issues at TSMC's Taiwan Manufacturing Facilities

Hsinchu, Taiwan, January 1, 2000- Taiwan Semiconductor Manufacturing Company (NYSE: TSM) today announced that as of 1:15 a.m. there were no significant Y2K problems reported in any of its manufacturing facilities or offices in Hsinchu and Tainan, Taiwan. As a result, the company was able to successfully transition into the new year with no unplanned interruption to its operations, said TSMC president FC Tseng and senior vice president Dr. Quincy Lin, the chief commander for TSMC's Y2K project.

"In 1997, TSMC began the prodigious task of implementing the Y2K rollover such that there would be no unplanned interruptions to our manufacturing operations. The word from our Y2K command center is that from the standpoint of operations here in Taiwan, this plan was a complete success," said TSMC president FC Tseng. "We took initiatives to report our latest Y2K status to our customers. Dr. Lin also flew to the United States to give our customers seminars regarding our Y2K plans and preparedness. We have worked our very best to ensure that all TSMC's manufacturing facilities and services would be unaffected by the Y2K rollover."

TSMC's Y2K project took into account a wide variety of information systems, including sales and marketing, order management, production control and management, test management, quality assurance, environmental monitoring, and others. The Company's integration testing was completed in February, 1999, while the contingency plan was ready in April, 1999, with its auditing done in June, 1999. In addition, the company has prepared for a variety of possible external problems, including power failures or services disruption. The company's Y2K command center did not find it necessary to enact any of these contingencies. However, the company did briefly shut down its manufacturing operations from 11:00 p.m. on December 31, 1999 to 1:00 a.m. January 1, 2000 during the rollover, as a planned occurrence to minimize any possible disruption, such as a power failure at the Hsinchu Science-Based Park. This planned shutdown had no impact on customers' orders or delivery schedules.

About TSMC

TSMC is the world's largest dedicated semiconductor foundry, providing the industry's leading process technology, library and IP options and other leading-edge foundry services. TSMC operates five eight-inch wafer fabs (Fab 3, 4, 5, TASMC and WaferTech), and two six-inch wafer fabs (Fabs 1 and 2). In addition, the company is ramping Fab 6, located in Tainan Taiwan, for production and has begun construction of a $1.2 billion joint venture fab with Philips Semiconductor, which is scheduled to open in Singapore in 2000. TSMC will break ground for a new 12-inch wafer fabrication facility in the first quarter of 2000 in Hsinchu and for fab 7 in Tainan, which will be the companies sixth eight-inch fab. In year 2000, TSMC will have the capacity for nearly 3 million 8-inch equivalent wafers. Fabrication processes offered by TSMC include CMOS logic, mixed-mode, volatile and non-volatile memory, and BiCMOS. TSMC's corporate headquarters are in Hsinchu, Taiwan.