ATMI to Present at Investor Conferences in November & December

ATMI to Present at Investor Conferences in November & December



DANBURY, Conn., Nov. 5  /PRNewswire-FirstCall/ -- ATMI, Inc. (NASDAQ:ATMI)
today announced that it is scheduled to present at two investor conferences
during November and December 2004. Where available, webcast links will be
posted on atmi.com's investor page.

  November
   * 17th - Wells Fargo Annual Technology Conference
      -- New York City; 8:30 am local time.

  December
   * 3rd - Credit Suisse First Boston Annual Technology Conference
      -- Scottsdale, Arizona; 10:30 am local time.



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 http://www.atmi.com/. 

DATASOURCE: ATMI, Inc.



CONTACT:  Dean Hamilton of ATMI, [phone], or [phone]

ext. 4202,  



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

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