Ultra Clean Announces Participation in the Midtown CAP Summit Investor Conference

    Ultra Clean Announces Participation in the Midtown CAP Summit Investor
                                  Conference

PR Newswire

HAYWARD, Calif., Dec. 4, 2012

HAYWARD, Calif., Dec. 4, 2012 /PRNewswire/ -- Ultra Clean Holdings, Inc.
(Nasdaq:  UCTT),  a developer  and supplier  of critical subsystems, for the
semiconductor capital equipment, medical device, energy, research, and flat
panel industries, announced that Clarence Granger, Chairman and Chief
Executive Officer, and Casey Eichler, Chief Financial Officer, will
participate in the Midtown CAP Summit Investor Conference to be held December
11, 2012 from 9:00AM to 1:00PM Eastern Standard Time at the Marriott Marquis
Hotel located at 1535 Broadway, New York, NY.

The company will post the presentation materials used at the conference on its
website. Interested parties may access the presentation via the Company's
website at www.uct.com.

Midtown CAP Summit

The event is hosted by executive management from the following participating
companies: Aehr Test Systems (NASDAQ: AEHR), Brooks Automation (NASDAQ: BRKS),
Cohu (NASDAQ: COHU), ESI (NASDAQ: ESIO), inTEST (NASDAQ:INTT), Intevac
(NASDAQ: IVAC), LTX-Credence Corporation (NASDAQ: LTXC), Rudolph Technologies
(NASDAQ: RTEC), Ultra Clean Technology (NASDAQ: UCTT) and Ultratech (NASDAQ:
UTEK) and will feature a "round-robin" format consisting of small group
meetings, each 25 minutes in duration.

The Midtown CAP Summit is by invitation only and is open to accredited
investors and publishing research analysts.  As space is limited, please RSVP
early. Hosts reserve the right to limit attendance as necessary. Last day for
registration is November 30.

To RSVP for the Midtown CAP Summit, please contact the event's co-chairs:

Laura J. Guerrant-Oiye            Claire E. McAdams
Guerrant Associates                 Headgate Partners LLC
Phone:  (808) 882-1467            Phone:  (530) 265-9899
Email:  lguerrant@guerrantir.com   Email:  claire@headgatepartners.com

SOURCE Ultra Clean Holdings, Inc.

Website: http://www.uct.com
Contact: Ultra Clean Technology, Casey Eichler, Chief Financial Officer,
+1-510-576-4704, ceichler@uct.com