Source: Entegris, Inc.

Entegris to Report Results for First Quarter of 2008 On April 30, 2008

CHASKA, Minn., April 21, 2008 (PRIME NEWSWIRE) -- Entegris, Inc. (Nasdaq:ENTG) will release its first-quarter financial results for fiscal 2008 before the opening of the market on Wednesday, April 30, 2008. A teleconference with management is scheduled for the same day at 10:00 a.m. Eastern Time (ET).

Participants should dial 1-888-244-2511 (domestic callers) or 1-913-312-1409 (for callers outside the U.S.). Participants are asked to dial in 5 to 10 minutes prior to the start of the call. A replay of the call will be available starting April 30, 2008 at 1:00 p.m. (ET) until Wednesday, June 11, 2008. The replay can be accessed by using passcode 5245573 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.