CHASKA, Minn., Oct 26, 2005 (BUSINESS WIRE) -- Entegris, Inc. (Nasdaq:ENTG) President and CEO Gideon Argov announced today that John J. Murphy was appointed yesterday as the company's new Senior Vice President of Human Resources. Murphy's human resource leadership experience includes senior positions with General Electric, Cadence Design Systems Inc., and Ericsson Inc., over more than 25 years. His responsibilities included overseeing human resources for businesses with global operations.

"John Murphy brings the caliber of experience and talent Entegris needs in ensuring a high level of human resources excellence to support our growing success as a global industry leader," said Argov after the company's board of directors approved the appointment yesterday.

ABOUT ENTEGRIS

Entegris is the global leader in materials integrity management - purifying, protecting and transporting critical materials used in high technology products, processes and services. Entegris and Mykrolis completed their merger to create the new Entegris in August 2005. The merged company delivers technology, product and service solutions to the 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.

SOURCE: Entegris, Inc.

Entegris, Inc., Chaska 
Public Relations:
Bill Paterson, 952-556-4155
Bill_paterson@entegris.com
or
Investor Relations
Steve Cantor, 978-436-6750
irelations@entegris.com