UCT to Present at the Craig-Hallum Institutional Investor Conference

HAYWARD, Calif., May 22, 2017 - Ultra Clean Holdings, Inc. (Nasdaq: UCTT), a leading developer and supplier of critical systems and subsystems for the semiconductor capital equipment, flat panel, medical, energy and research industries, today announced Jim Scholhamer, Chief Executive Officer and Sheri Brumm, Senior Vice President and Chief Financial Officer will participate in the Craig-Hallum Institutional Conference on Wednesday, May 31, 2017 at the Depot Renaissance Hotel in Minneapolis, MN.

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, and energy and research industries. Ultra Clean is headquartered in Hayward, California. Additional information is available at www.uct.com.

SOURCE Ultra Clean Holdings, Inc.

Web Site: http://www.uct.com