TSMC Opens Southern California OfficeNames Jim D. Vanantwerp Director of Account Management

SAN JOSE, Calif.,Feb. 22, 1999-Taiwan Semiconductor Manufacturing Company Ltd. (TAIEX: 2330, NYSE: TSM), (" TSMC " or "the Company" ) today announced the opening of a new office in Southern California.

James D. VanAntwerp has been appointed director of account management for the new office and will head up TSMC's new business development, design and turnkey efforts in the Southern California area. With its additional location, TSMC expands its reach and reinforces its position as the world's largest pure-play foundry.

"Through our new office, Southern California's large concentration of high-technology companies can now benefit from local contact with a TSMC representative," said Magnus Ryde, president of TSMC.

"With more than 23 years of account management, operations and engineering experience, Jim VanAntwerp brings to TSMC the perfect combination of product knowledge and management expertise to offer our Southern California customers top-quality, personal service."

Prior to joining TSMC, VanAntwerp was Southwest area director at Symbios (Newport Beach, Calif.). In this position he managed the sales force, the company's technology center and four representative firms.

During his 14 years at Symbios, he also held a variety of other management positions, working on everything from product development to operations. He has also held product engineering and test management positions at Texas Instruments and Silicon Systems.

VanAntwerp holds a bachelor of science in electrical engineering from Lawrence University and a masters of business administration from Regis University.

About TSMC

TSMC is the world's largest dedicated integrated circuit (IC) foundry and offers a comprehensive set of IC fabrication processes, including processes to manufacture CMOS logic, mixed-mode, volatile and non-volatile memory and BiCMOS chips.

Currently, TSMC operates two six-inch wafer fabs (Fab 1 and 2) and three eight-inch wafer fabs (Fab 3, 4 and 5), all located in Hsin-Chu, Taiwan. In mid-1998, TSMC announced that production wafers were being delivered from its first U.S. foundry, WaferTech, a joint venture with Altera, Analog Devices and Integrated Silicon Solutions, Inc.

The company has broken ground in the new Tainan Park, which will house Fabs 6 and 7 and recently announced its participation in a $1.2 billion joint venture fab with Philips Semiconductor which is scheduled to open in Singapore in 2000. TSMC's corporate headquarters are in Taiwan. More information about TSMC is available through the World Wide Web at http://www.tsmc.com.tw.