Filed Pursuant to 424(b)(3)
Registration No. 333-14513
Registration No. 333-87437
PERMA-FIX ENVIRONMENTAL SERVICES, INC.
Fifth Supplement to Prospectus dated November 13, 1996
___________________________________________
On July 15, 1999, the Company and RBB Bank Aktiengesellschaft ("RBB Bank"),
the sole shareholder of the Company's Series 3 Class C Convertible Preferred
Stock ("Series 3 Preferred"), entered into an Exchange Agreement ("Series 3
Exchange Agreement") whereby the 1,769 shares of Series 3 Preferred which
remained issued and outstanding were exchanged for 1,769 shares of the Company's
Series 11 Class K Convertible Preferred Stock ("Series 11 Preferred"). On
August 3, 1999, the Company and RBB Bank entered into an Exchange Agreement
("Series 11 Exchange Agreement") whereby the 1,769 shares of Series 11 Preferred
were exchanged for 1,769 shares of Series 14 Class N Convertible Preferred
Stock ("Series 14 Preferred").
As originally provided in the Prospectus, the Company registered 7,450,000
shares of Common Stock issued or to be issued to various Selling Security
holders for reoffer or resale from time to time by the Selling Security Holders.
On September 20, 1999, the Company filed a new registration statement Reg. No.
333-87437 pursuant to Rule 462(b) to register an additional 2,075,237 shares of
Common Stock to be issued through the use of this Prospectus. Such 2,075,237
shares were issued or are to be issued upon conversion of the Series 14
Preferred and in payment of accrued dividends thereon.
The Series 14 Preferred is not convertible into Common Stock until
April 20, 2000. From April 20, 2000, until April 20, 2001, the Series 14
Preferred is convertible at a price of $1.50 per share. Thereafter, the Series
14 Preferred is convertible pursuant to the described terms and conditions of
the Series 3 Preferred. The Company may, at its sole option, but shall not
be obligated to, redeem, in whole or in part, at any time, and from
time to time, the then outstanding Series 14 Preferred at the
following cash redemption prices if redeemed during the following
periods: (i) within twelve (12) months from April 20, 1999 - $1,100
per share, and (ii) after twelve (12) months from April 20, 1999 -
$1,200 per share.
<TABLE>
<CAPTION>
In conjunction with the above and to reflect various reoffers
and resales conducted by RBB Bank, this table below supplements and
amends, in part, the Selling Security Holders table set forth at
page 21 of the Prospectus by adjusting and updating the offering
information applicable to RBB Bank as of September 29, 1999.
Common Stock Percentage of
Common Stock Beneficially Common Stock
Beneficially Common Owned After Beneficially
Owned Stock Completion Owned After
Prior to Being of Completion of
Selling Stockholder Offering(1) Offered Offering(2) Offering(2)
_____________________ ____________ __________ ___________ ____________
<S> <C> <C> <C> <C>
RBB Bank
Aktiengesellschaft(3) 12,954,785 6,874,545 6,080,240 25.6%
<FN>
(1) Includes shares of Common Stock which may be acquired upon (a)
the exercise of outstanding warrants, whether such are
currently exercisable and/or (b) conversion of outstanding
shares of preferred stock, whether or not such are currently
convertible.
(2) Assumes (a) all shares of Common Stock covered by this
Prospectus are sold, (b) the Selling Shareholder does not
acquire beneficial ownership of additional shares of Common
Stock after the date of this Prospectus, and (c) the Company
does not issue any additional shares of Common Stock after the
date of this Prospectus, except the shares of Common Stock
(calculated as described in Note 3) which RBB Bank has the
right to acquire upon the exercise of warrants and conversion
of preferred stock outstanding as of the date of this
Prospectus. The amounts indicated are based on outstanding
Common Stock of 20,397,709 shares as of September 29, 1999.
(3) Includes (a) 6,751,482 shares of Common Stock that RBB Bank
holds directly; (b) 3,006,250 shares that RBB Bank is entitled
to receive upon exercise of various warrants; (c) 1,179,333
shares that RBB Bank is entitled to receive upon conversion of
the 1,769 shares of Series 14 Preferred remaining outstanding,
all of which are held by RBB Bank (assuming the conversion
price equals $1.50 per share, the minimum conversion price
until April 20, 2001); (d) 410,667 shares that RBB Bank is
entitled to receive upon conversion of the 616 shares of
Series 15 Class O Convertible Preferred ("Series 15
Preferred") (assuming the conversion price equals $1.50 per
share, the minimum conversion price until April 20, 2001); (e)
1,345,493 shares of Common Stock that RBB Bank is entitled to
receive upon conversion of the 1,802 shares of Series 16
Preferred held by RBB Bank (assuming the conversion price
equals $1.50 per share, the minimum conversion price until
April 20, 2001) and in payment of accrued dividends on the
Series 16 Preferred (assuming that dividends are paid for
three years in Common Stock when the average closing bid price
for the five days prior to the dividend payment dates is
$1.50, being the closing price of the Common Stock on
September 27, 1999); (f) 212,280 shares of Common Stock that
RBB Bank may receive in payment of the accrued dividends on
the Series 3 Preferred, Series 11 Preferred and Series 14
Preferred (assuming that dividends are paid for three years in
Common Stock when the average closing bid price of the Common
Stock for the five days prior to the dividend payment dates is
$1.50, being the closing price of the Common Stock on
September 27, 1999); and (g) 49,280 shares that RBB Bank may
receive in payment of the accrued dividends on the Series 4
Preferred (which was exchanged for the Series 6 Preferred),
Series 6 Preferred (which was exchanged for the Series 8 Class
H Convertible Preferred ("Series 8 Preferred"), Series 8
Preferred (which was exchanged for the Series 12 Class L
Convertible Preferred ("Series 12 Preferred"), Series 12
Preferred (which has been exchanged for the Series 15
Preferred), and Series 15 Preferred (assuming that dividends
are paid for three years in Common Stock when the average
closing bid price of the Common Stock for the five days prior
to the dividend payment dates is $1.50, being the closing
price of the Common Stock on September 27, 1999).
</FN>
</TABLE>
September 30, 1999.
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