GCT Semiconductor Appoints Ron Wilderink as Chief Financial Officer.

Business Editors/High-Tech Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--May 21, 2003

GCT Semiconductor, Inc., a leading provider of radio frequency (RF) integrated circuits for wireless devices, today announced the appointment of Ron Wilderink as Vice President of Finance & Administration and Chief Financial Officer. Wilderink will lead the strategic and operational activities of the finance and administrative organizations of GCT.

"I am very excited to join the management team at GCT Semiconductor. I believe GCT's innovative technology, strong strategic relationships and solid base of investor support put the company in an excellent position to become a very successful and profitable company in the future. I look forward to being a part of this exciting opportunity and in doing my part to help us achieve our objectives," said Wilderink.

Prior to joining GCT, Wilderink was Vice President of Finance and Chief Financial Officer at Conductus, Inc., a manufacturer of filter and amplifier systems for the wireless communications market. Prior to Conductus, he was Vice President and Corporate Controller of Oak Technology, Inc., a fabless semiconductor company providing solutions to the optical storage, digital imaging and digital home entertainment markets. His previous experience includes various positions in the finance organizations of Bell Microproducts, Inc., VMX, Inc. and KPMG Peat Marwick LLP. Wilderink holds a B.S. degree in Accounting from San Jose State University and is a Certified Public Accountant.

"We are very pleased to have Ron join GCT. We believe his extensive financial experience and proven track record of developing and managing the financial operations in both wireless communications and fabless semiconductor companies make him the ideal person to lead our finance and administrative organizations," said Dr. K.H. Lee, GCT's President and CEO.

About GCT Semiconductor, Inc.

GCT Semiconductor is a fabless semiconductor company that designs, develops and markets innovative integrated circuit solutions for the wireless communications industry. The company's patented direct conversion architecture, which is the basis for GCT's radio frequency (RF) core, can efficiently support multimode applications and be fabricated on standard CMOS processes. The company's web site can be found at www.gctsemi.com.