DANBURY, Conn., Jan. 18, 2011 (GLOBE NEWSWIRE) -- ATMI, Inc. (Nasdaq:ATMI) intends to release quarterly financial results before the Market's open on the following dates in 2011:
February 2: 4Q and FY2010 results
April 20: 1Q 2011 results
July 20: 2Q 2011 results
October 19: 3Q 2011 results

ATMI will host a conference call at 11:00 a.m. Eastern time the same day to review and discuss the results, at 877.766.0748.

Interested parties may also listen to the conference call via audio streaming on the Internet at ATMI.com.

About ATMI

ATMI, Inc. provides specialty semiconductor materials, and high-purity materials handling and delivery solutions designed to increase process efficiencies for the worldwide semiconductor, flat panel, and life sciences industries. For more information, please visit http://www.atmi.com .

ATMI and the ATMI logo are trademarks or registered trademarks of Advanced Technology Materials, Inc., in the United States, other countries or both.

The ATMI, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=5254
CONTACT: Dean Hamilton, Director, ATMI Investor Relations &         Corporate Communications         203.207.9349, Direct         203.794.1100 x4202         dhamilton@atmi.com

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