UCT Announces Fourth Quarter 2016 Financial Results Release Date

HAYWARD, Calif., Feb. 9, 2017

The conference call will take place at 1:45 p.m. PT and can be accessed by dialing 1-844-826-3034 (toll-free) or 1-412-317-5179 (international). No passcode is required. An audio replay of the conference call will be made available approximately two hours after the call and will remain available for 7 days. The call-in numbers for the replay are 1-877-344-7529 (toll-free) or 1-412-317-0088 (international) and entering the confirmation code 10100095.

A live webcast of the conference call will also be available on the Investor Relations section of the Company's website at http://uct.com/investors/events/. A replay of the webcast will be available approximately two hours after the conclusion of the conference call and will remain available until the following quarter.

About Ultra Clean Holdings, Inc.

Ultra Clean Holdings, Inc. is a leading developer and supplier of critical systems and subsystems for the semiconductor capital equipment, flat panel, medical, energy and research industries. Ultra Clean offers its customers an integrated outsourced solution for gas delivery systems and other subassemblies, improved design-to-delivery cycle times, component neutral design and manufacturing and component testing capabilities. Ultra Clean's customers are primarily original equipment manufacturers for the semiconductor capital equipment, flat panel, medical, energy and research industries. Ultra Clean is headquartered in Hayward, California. Additional information is available at www.uct.com.

Contact:
Annie Leschin
(415) 775-1788
annie@streetsmartir.com