Ultra Clean to Participate in Two Virtual Investor Conferences

HAYWARD, Calif., May 18, 2020 /PRNewswire/ -- Ultra Clean Holdings, Inc. (Nasdaq: UCTT) today announced that it will participate in the following virtual investor conferences:

17th Annual Craig-Hallum Virtual Institutional Investor Conference Wednesday, May 27, 2020

Cowen Virtual Technology, Media & Telecom Conference Thursday, May 28, 2020 The presentation webcast will take place at 1:50 pm ET and can be accessed at www.uct.com/English/investors/events-and-presentations shortly after the presentation.

About Ultra Clean Holdings, Inc.

Ultra Clean Holdings, Inc. is a leading developer and supplier of critical subsystems, ultra-high purity cleaning and analytical services primarily for the semiconductor industry. Ultra Clean offers its customers an integrated outsourced solution for major subassemblies, improved design-to-delivery cycle times, design for manufacturability, prototyping and component manufacturing, and tool chamber parts cleaning and coating, as well as microcontamination analytical services. Ultra Clean is headquartered in Hayward, California. Additional information is available at www.uct.com.

Contact:

Rhonda Bennetto Vice President Investor Relations [email protected]

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SOURCE Ultra Clean Holdings, Inc.