01.06.10

ULTRA CLEAN TO PRESENT AT THE SIDOTI & COMPANY FIRST 2010 MICRO CAP CONFERENCE

HAYWARD, CA — January 6, 2010 (PR Newswire)  — Ultra Clean Technology (Ultra Clean Holdings, Inc. (Nasdaq: UCTT), a leading outsource solution provider for a variety of complex modules ranging from liquid & gas delivery systems to turnkey system integration for the semiconductor capital equipment, medical device, research, flat panel, and energy industries, announced that Clarence Granger, Chairman and Chief Executive Officer, and Casey Eichler, Chief Financial Officer, will address the Sidoti & Company First 2010 Micro Cap Conference. The presentation will take place at the The Grand Hyatt Hotel, New York on Monday, January 11th, 2010 at 11:50 AM Eastern Standard Time.

About Ultra Clean Holdings, Inc.
Ultra Clean Holdings, Inc. (Nasdaq: UCTT), is a leading outsource solution provider for a variety of complex modules ranging from liquid & gas delivery systems to turnkey system integration for the semiconductor capital equipment, medical device, research, flat panel, and energy industries.Ultra Clean offers its customers an integrated outsource solution including improved design-to-delivery cycle times, complete product realization capabilities, global supply chain, and low cost region manufacturing. Ultra Clean's customers are primarily original equipment manufacturers of semiconductor, medical, research, flat panel, and energy capital equipment.

Ultra Clean is headquartered in Hayward, California.