Perma-Fix to Voluntarily Withdraw its Listing of Common Stock on the Boston Stock Exchange; Perma-Fix Common Stock to Remain Listed on the Nasdaq

ATLANTA, June 6 /PRNewswire-FirstCall/ -- Perma-Fix Environmental Services, Inc. (Nasdaq: PESI; BSE: PESI; Germany: PES.BE) today announced that it intends to voluntarily withdraw its listing of common stock on the Boston Stock Exchange. On or about June 19, 2007, Perma-Fix will file an application on Form 25, "Notification of Removal from Listing and/or Registration under Section 12(b) of the Securities Exchange Act of 1934", with the Securities and Exchange Commission, which application and withdrawal of listing of Perma-Fix Common Stock on the Boston Stock Exchange shall become effective ten days after the Form 25 is filed. Perma-Fix's common stock will remain listed on the Nasdaq.

Dr. Louis F. Centofanti stated, "This action is being taken as a result of the SEC's approval of the Nasdaq as a national securities exchange and designating securities listed on the Nasdaq Capital Markets, such as Perma-Fix common stock, exempt from state Blue Sky filing requirements."

Perma-Fix Environmental Services, Inc. is a national environmental services company, providing unique mixed waste and industrial waste management services. The Company has increased its focus on the Nuclear services segment, which provides radioactive and mixed waste treatment services to hospitals, research laboratories and institutions, numerous federal agencies including DOE and the U.S. Department of Defense and nuclear utilities. The Industrial services 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 nine 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-                             06/06/2007
    /CONTACT: Dr. Louis F. Centofanti, Chairman and CEO of Perma-Fix
Environmental Services, Inc., +1-770-587-9898; or David K. Waldman - US
Investor Relations, of Crescendo Communications, LLC, +1-212-671-1020 x101; or
Herbert Strauss - European Investor Relations, +43 316 296 316,
herbert@eu-ir.com/
    /Web site:  http://www.perma-fix.com/
    (PESI)

CO:  Perma-Fix Environmental Services, Inc.
ST:  Georgia, Massachusetts
IN:  ENV
SU:

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6812 06/06/2007 16:42 EDT http://www.prnewswire.com