ATMI to Announce Second Quarter 2004 Financial Results on July 21st

ATMI to Announce Second Quarter 2004 Financial Results on July
21st 


DANBURY, Conn., June 23  /PRNewswire-FirstCall/ -- ATMI, Inc. (NASDAQ:ATMI)
today announced that it intends to release second quarter 2004 financial
results before the Market's open on July 21st 2004. ATMI will host a conference
call at 11:00am Eastern the same day to review and discuss the results, at
800.289.0544. Interested parties may also listen to the conference call via
audio streaming on the Internet at ATMI.com. A replay of the call will be
available by phone for 48 hours at 888.203.1112 (access code 637528) and on the
web for one month at ATMI.com.

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://atmi.com/ . 

DATASOURCE: ATMI, Inc.



CONTACT:  Dean Hamilton of ATMI, Inc., [phone] Direct,

[phone], ext. 4202, 



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

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