CERTIFICATE OF AMENDMENT
                                                        TO
                                           CERTIFICATE OF INCORPORATION
                                                        OF
                                          PLASMATRONIC TECHNOLOGIES, INC.
                                             (a Delaware corporation)





         PLASMATRONIC  TECHNOLOGIES,  INC., a corporation organized and existing
under and by virtue of the General Corporation Law of the State of Delaware:

         DOES HEREBY CERTIFY:

         1. The following  resolution has been unanimously  adopted by the board
of directors and a majority of the stockholders of the Corporation in accordance
with  Section 242 of the  Delaware  General  Corporation  Law for the purpose of
amending the corporation's Certificate of Incorporation.  The resolution setting
forth the proposed amendment is as follows:

                  RESOLVED,   that  the  Certificate  of  Incorporation  of  the
         Corporation  be amended  by  changing  the  Articles  thereof  numbered
         "FIRST" and "FOURTH" so that, as amended,  said  Articles  shall be and
         read as follows:

         FIRST:  The name of the corporation is Ecological Services, Inc.

         FOURTH: The total number of shares of all classes which the Corporation
         is authorized to have  outstanding  is Twenty One Million  (21,000,000)
         shares of which stock  Twenty  Million  (20,000,000)  shares in the par
         value of $.001 each,  amounting  in the  aggregate  of Twenty  Thousand
         Dollars  ($20,000)  shall be  common  stock  and of which  One  Million
         (1,000,000)  shares in the par value of $.001  each,  amounting  in the
         aggregate to One Thousand  Dollars  ($1,000) shall be preferred  stock.
         Effective on May 25, 1998,  or upon filing of this  amendment  with the
         Delaware  Secretary  of State,  whichever  is sooner,  the common stock
         shall be reconstituted  such that 3.75 new shares of common stock shall
         be issued in exchange for each one  outstanding  share.  Any fractional
         shares otherwise  required to be issued shall be rounded to the nearest
         whole  share.  The  board  of  directors  is  authorized,   subject  to
         limitations  prescribed  by law,  to provide  for the  issuance  of the
         authorized  shares  of  preferred  stock  in  series,  and by  filing a
         certificate pursuant to the applicable law of the State of Delaware, to
         establish from time to time the number of shares to be included in each
         such  series  and  the  qualifications,   limitations  or  restrictions
         thereof.  The  authority of the board with respect to each series shall
         include, but not be limited to, determination of the following:



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         (a)      The number of shares constituting that series and the
 distinctive designation of that
                  series;

         (b)      The  dividend  rate  on the  shares  of that  series,  whether
                  dividends shall be cumulative,  and, if so, from which date or
                  dates, and the relative rights of priority, if any, of payment
                  of dividends on shares of that series;

         (c)      Whether that series shall have voting  rights,  in addition to
                  the voting  rights  provided by law,  and, if so, the terms of
                  such voting rights;

         (d)      Whether that series shall have conversion privileges,  and, if
                  so, the terms and  conditions  of such  conversion,  including
                  provision for adjustment of the conversion rate in such events
                  as the Board of Directors shall determine;

         (e)      Whether or not the shares of that series shall be  redeemable,
                  and,  if so,  the terms  and  conditions  of such  redemption,
                  including  the date or date upon or after  which they shall be
                  redeemable,  and  the  amount  per  share  payable  in case of
                  redemption,  which amount may vary under different conditions,
                  and at different redemption rates;

         (f)      Whether  that  series  shall  have  a  sinking  fund  for  the
                  redemption  or purchase of shares of that series,  and, if so,
                  the terms and amount of such sinking fund;

         (g)      The  rights  of the  shares  of that  series  in the  event of
                  voluntary or involuntary  liquidation,  dissolution or winding
                  up of the corporation, and the relative rights of priority, if
                  any, of payment of shares of that series;

         (h)      Any other relative rights, preferences and limitations of that
                  series,  unless  otherwise  provided  by  the  certificate  of
                  determination.



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                  FURTHER  RESOLVED,  that the capital of said Corporation shall
         be revised by reason of said  amendment  to  transfer  from  surplus to
         capital an amount  equal to the number of new common  shares  issued in
         the recapitalization times their par value.

         2.  That  said  amendment  was  duly  adopted  in  accordance  with the
provisions  of  Section  242 of the  General  Corporation  Law of the  State  of
Delaware.

         IN WITNESS WHEREOF, PLASMATRONIC TECHNOLOGIES, INC. has caused this
certificate to be signed by its duly authorized officer, this 16th day of May,
 1998.


PLASMATRONIC TECHNOLOGIES, INC.




Jehu Hand, President and Secretary


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