SUNNYVALE, Calif, August 5, 1999 - United Microelectronics Corporation (UMC) today announced it has relocated its U.S. headquarters to accommodate the company's tremendous growth. The company has relocated to a 25,000-foot facility located at 488 DeGuigne Drive, Sunnyvale, California 94086 which will house all of the company's U.S. operations including sales, marketing and R&D, and over one-hundred employees.

James D. Kupec, president of UMC Group (USA) said, "Due to UMC Group's expanding customer base in the U.S. and the trend that chip companies are outsourcing wafer production to pure-play semiconductor manufacturers, we have outgrown our previous facilities. With our new facility, we will be able to further grow our staff and support our 40 - 50 percent per year growth model."