ATMI Named One of Connecticut's Fastest Growing Companies in Deloitte's 'Technology Fast 50' for Connecticut

DANBURY, Conn., Oct. 7  /PRNewswire-FirstCall/ -- ATMI, Inc. (NASDAQ:ATMI), a supplier of materials and materials packaging to the world's leading semiconductor manufacturers, today announced that it has been named to Deloitte's prestigious Technology Fast 50 Program for Connecticut, a ranking of the 50 fastest growing technology companies in the State. Rankings are based on percentage revenue growth over five years from 2000-2004.

This is the eighth consecutive year that ATMI has been ranked in the Technology Fast 50 for Connecticut.

"ATMI's long track record of sustained growth comes from our focus on pioneering semiconductor materials and materials packaging technologies - and from working closely with our customers, the world's leading integrated circuit producers," said Doug Neugold, Chief Executive Officer and President. "Our innovations create significant cost and manufacturing benefits that our customers value highly. Our focus on their future will remain the driver of ATMI's growth."

To qualify for the Connecticut Technology Fast 50, companies must have had operating revenues of at least $50,000 in 2000 and $1,000,000 in 2004, be headquartered in Connecticut, and be a "technology company," defined as a company that owns proprietary technology that contributes to a significant portion of the company's operating revenues; or devotes a significant proportion of revenues to the research and development of technology. Using other companies' technology in a unique way does not qualify.

About Deloitte

Deloitte refers to one or more of Deloitte Touche Tohmatsu, a Swiss Verein, its member firms, and their respective subsidiaries and affiliates. As a Swiss Verein (association), neither Deloitte Touche Tohmatsu nor any of its member firms has any liability for each other's acts or omissions. Each of the member firms is a separate and independent legal entity operating under the names "Deloitte," "Deloitte & Touche," "Deloitte Touche Tohmatsu," or other related names. Services are provided by the member firms or their subsidiaries or affiliates, and not by the Deloitte Touche Tohmatsu Verein. Deloitte & Touche USA LLP is the US member firm of Deloitte Touche Tohmatsu. In the US, services are provided by the subsidiaries of Deloitte & Touche USA LLP (Deloitte & Touche LLP, Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP, Deloitte Tax LLP and their subsidiaries), and not by Deloitte & Touche USA LLP. As used in this document, "Deloitte" includes Deloitte & Touche LLP, Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP, and Deloitte Tax LLP.

About ATMI

ATMI provides specialty materials and materials packaging to the worldwide semiconductor industry. As the Source of Semiconductor Process Efficiency, ATMI helps customers improve wafer yields and lower operating costs. For more information, please visit atmi.com.

Statements contained herein that relate to ATMI's future performance, including, without limitation, statements with respect to ATMI's anticipated results of operations or level of business for 2005 or any other future period, are forward-looking statements within the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements are based on current expectations only and are subject to certain risks, uncertainties, and assumptions, including, but not limited to, changes in semiconductor industry growth (including, without limitation, wafer starts) or ATMI's markets; competition, problems, or delays developing and commercializing new products; problems or delays in integrating acquired operations and businesses; and other factors described in ATMI's filings with the Securities and Exchange Commission. Such risks and uncertainties may cause actual results to differ materially from those expressed in our forward- looking statements. ATMI undertakes no obligation to update any forward- looking statements. 

DATASOURCE: ATMI, Inc.



CONTACT:  Dean Hamilton, ATMI Investor Relations & Corporate

Communications of ATMI, Inc., [phone] Direct, [phone] ext.

4202, 



Web site:  http://www.atmi.com/ 

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