Perma-Fix Environmental Services, Inc. Announces Release of First Quarter Earnings and Invites You to Join Its Conference Call

ATLANTA, May 9 /PRNewswire-FirstCall/ -- Perma-Fix Environmental Services, Inc. (Nasdaq: PESI; Boston) (Germany: PES.BE) today released first quarter earnings. In conjunction with the Company's first quarter earnings release, you are invited to listen to its conference call that will be broadcast live over the Internet, or to participate directly in the conference call at the numbers noted below. The conference call will be held today, at 12:00 p.m. EDT with Dr. Louis F. Centofanti, Chairman and CEO, and Richard T. Kelecy, Vice President and CFO, of Perma-Fix Environmental Services, Inc.

    What:  Perma-Fix Presents First Quarter 2005 Operating Results

    When:  Monday, May 9, 2005, at 12:00 p.m. EDT

    Where: http://www.perma-fix.com

    How:   Live over the Internet -- Simply log on to the web at the address
           above

    Contact:  Richard T. Kelecy, 352-395-1351

            TO PARTICIPATE IN THE CONFERENCE CALL, PLEASE DIAL-IN:

                          U.S. Calls 1-877-888-7019

                       International Calls 416-695-5259

Perma-Fix Environmental Services, Inc. is a national environmental services company, providing unique mixed waste and industrial waste management services. The Nuclear Segment provides radioactive and mixed waste treatment services to hospitals, research laboratories and institutions, numerous federal agencies including the Departments of Energy and Defense and nuclear utilities. The Industrial Segment provides hazardous and non-hazardous waste treatment services for a diverse group of customers including Fortune 500 companies, numerous federal, state and local agencies, and thousands of smaller clients. The company operates 11 major waste treatment facilities across the country.

Please visit us on the World Wide Web at http://www.perma-fix.com .

SOURCE  Perma-Fix Environmental Services, Inc.
    -0-                             05/09/2005
    /CONTACT:  Dr. Louis F. Centofanti, Chairman and CEO, Perma-Fix
Environmental Services, Inc., +1-404-847-9990; or Investors, David Waldman,
dwaldman@lhai.com, or John Heilshorn, both of Lippert/Heilshorn & Associates,
+1-212-838-3777; or European investor relations, Herbert Strauss,
+011-43-316-296-316, or herbert@eu-ir.com, all for Perma-Fix Environmental
Services, Inc./
    /Web site:  http://www.perma-fix.com /
    (PESI)

CO:  Perma-Fix Enviornmental Services, Inc.
ST:  Georgia
IN:  ENV
SU:  CCA MAV





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