/C O R R E C T I O N -- Ultra Clean Holdings, Inc./

In the news release, Ultra Clean (NASDAQ:UCTT) to Present at the Cowen and Company 35th Annual SMid-Cap Technology Conference, issued earlier today by Ultra Clean Holdings, Inc. over PR Newswire, the first paragraph, second sentence, should read "May 30th, 2007 at 9:55AM Eastern Daylight Time" rather than "9:55PM" as incorrectly transmitted by PR Newswire.

DATASOURCE: Ultra Clean Holdings, Inc.