Entegris, Inc. to Webcast Presentation at 13th Annual Needham Growth Conference


BILLERICA, Mass., Dec. 28, 2010 - Entegris, Inc.
(Nasdaq:ENTG) today announced that the Company's management is scheduled to present at the 13th Annual Needham Growth Conference on January 11, 2011 at 8:00 AM (ET) in New York.

For those who cannot attend, the presentation will be available via live webcast and on demand at the following link: www.wsw.com/webcast/needham41/entg/. The webcast will also be accessible on the Entegris website at: www.entegris.com.

ABOUT ENTEGRIS

Entegris is a leading provider of a wide range of products for purifying, protecting and transporting critical materials used in processing and manufacturing in semiconductor and other high tech industries. Entegris is ISO 9001 certified and has manufacturing, customer service and/or research facilities in the United States, China, France, Germany, Israel, Japan, Malaysia, Singapore, South Korea and Taiwan.

CONTACT:

Entegris, Inc.

Steve Cantor,

Director Investor Relations

978-436-6750

irelations@entegris.com

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