Participants should dial 1-866-416-5346 (domestic callers) or 1-913-312-0376 (for callers outside of the U.S.), referencing confirmation code #8433843. Participants are asked to dial in 8 to 13 minutes prior to the start of the call. A replay of the call will be available starting October 27, 2009 at 2:00 p.m. (ET) until December 8, 2009. The replay can be accessed by using passcode 8433843 after dialing (888) 203-1112 or (719) 457-0820.

The call can also be accessed live and on-demand from the Entegris website. Point your web browser to http://investor.entegris.com and follow the link to the webcast. The on-demand playback will be available for six weeks after the conclusion of the teleconference.

ABOUT ENTEGRIS

Entegris provides 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 or research facilities in the United States, China, France, Germany, Israel, Japan, Malaysia, Singapore, South Korea and Taiwan. Additional information can be found at www.entegris.com.

CONTACT: Entegris, Inc.
Steve Cantor, VP of Corporate Relations


978-436-6750
irelations@entegris.com