CHASKA, Minn.--(BUSINESS WIRE)--July 18, 2006--In BW5766 issued July 18, 2006: In the first graph, first sentence should read: Entegris, Inc. (Nasdaq:ENTG) will release its financial results for the second quarter of fiscal 2006 (ended July 1, 2006) following the close of the market on Monday, August 7, 2006. (sted Entegris, Inc. (Nasdaq:ENTG) will release its financial results for the second quarter of fiscal 2006 (ended April 1, 2006) following the close of the market on Monday, August 7, 2006.)

The corrected release reads:

ENTEGRIS TO CONDUCT SECOND QUARTER 2006 CONFERENCE CALL

Entegris, Inc. (Nasdaq:ENTG) will release its financial results for the second quarter of fiscal 2006 (ended July 1, 2006) following the close of the market on Monday, August 7, 2006. A teleconference with management is scheduled for the same day at 5:30 p.m. Eastern Time (ET). Entegris is a global market leader in providing technology, products and services that purify, protect and transport critical materials used primarily for the semiconductor and microelectronics industries.

To participate, please call one of the following numbers and ask for the "Entegris Conference Call," using passcode 1242447: (800) 811-0667 (domestic); (719) 457-0820 (international). 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 August 7, 2006 at 7:30 p.m. (ET) until Monday, August 28, 2006. The replay can be accessed by using passcode 1242447 after dialing (888) 203-1112 or (719) 457-0820.

The call will also be available 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 21 days after the conclusion of the teleconference.

ABOUT ENTEGRIS

Entegris (merged with Mykrolis in August 2005) is the global leader in materials integrity management - delivering 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, Japan, Malaysia, Singapore, South Korea and Taiwan. Additional information can be found at www.entegris.com.

CONTACT: Entegris, Inc., Chaska
Investor Relations:


Steve Cantor, 978-436-6750
irelations@entegris.com

SOURCE: Entegris, Inc.