For Ministry Use Only                  Ontario Corporation
           A l'usage exclusif du ministere        Number
                                                  Numero de la societe en
                                                  Ontario

                                                  219837

           Ministry of         Ministere de
           Consumer and        la Consommation
           Commercial          et du Commerce
           Ontario Relations
           CERTIFICATE         CERTIFICAT

           This is to certify  Ceci certie que
           that these          les presents
           articles are        status entrent en
           effective on        vigueur le

           May 27              MAI, 1997

                       Director/Directeur
                Business Corporations Act/Los de sur les compagnies
          ---------------------------------------------------------------


          Form 3
          Business
          Corporations
          Act


          Formula 3
          Loi sur les
          societes par
          actions

                                ARTICLES OF AMENDMENT
                                STATUS OF MODIFICATION

           1.   The name of the            Denomination sociale de la
                corporation is:            societe


                    A M E R I C A N   E C O  C O R P O R A T I O N

           2.   The name of the corporation is changed to (if Nouvelle
                denomination sociale de la societe (s'il y a lieu):
                applicable):

                     N / A

           3.   Date of incorporation/     Date de la constitution ou de
                amalgamation:              la fusion:

                                      1969/02/06
            -------------------------------------------------------------
                                  (Year, Month, Day)
                                 (annee, mois, jour)

           4.   The articles of the        Les statuts de la societe de
                corporation are amended    la facon suivante.
                as follows:




               The Articles of the Corporation be and they are hereby
               amended as follows:

               1.   by decreasing the authorized capital of the
                    Corporation by deleting the Class A Preference
                    Shares and the Class A Preference Shares, Series 1
                    (none of which are issued and outstanding);

               2.   by increasing the authorized capital of the
                    Corporation by creating an unlimited number of
                    preference shares, issuable in series;

                3.  by declaring that the capital of the Corporation after
                    giving affect to the foregoing consists of an unlimited
                    number of preference shares, issuable in series and an
                    unlimited number of common shares;

                4.  by deleting the existing share conditions attaching to
                    the Class A Preference Shares, Class A Preference
                    Shares, Series 1 and common shares;

                 5. by providing that the rights, privileges, restrictions
                    and conditions attaching to the preference shares and
                    common shares are as follows:

               A.    PREFERENCE SHARES
                     -----------------

               The preference shares, as a class, shall have attached
               thereto the following rights, privileges, restrictions and
               conditions:

               1.  Directors' Authority to Issue in One or More Series
                   ---------------------------------------------------

               1.1  The directors of the Corporation may issue the
               preference shares at any time and from time to time in one
               or more series.  Before any shares of a particular series
               are issued, the directors of the Corporation shall fix the
               number of shares in such series and shall determine, subject
               to the limitations set out in the articles, the designation,
               rights, privileges, restrictions and conditions to be
               attached to the shares of such series, including, but
               without in any way limiting or restricting the generality of
               the foregoing, the rate or rates, amount or method or
               methods of calculation of any dividends thereon and whether
               such rate(s), amount or method(s) of calculation shall be
               subject to change or adjustment in the future, the currency
               or currencies of payment, the date or dates and place or
               places of payment thereof and the date or dates from which
               such dividends shall accrue, the consideration and the terms
               and conditions of any purchase for cancellation, retraction
               or redemption rights (if any), the conversion or exchange
               rights attached thereto (if any) and the terms and
               conditions of any purchase obligation or sinking fund or
               other provisions attaching thereto.  Before the issue of a
               series of preference shares,the directors of the Corporation
               shall send to the Director appointed under the Business
               Corporations Act, Ontario (as now enacted or from time to
               time amended, re-enacted or replaced) (the "Act") articles
               of amendment in prescribed form containing a description of
               such series including the number of shares in such series
               and the designation, rights, privileges, restrictions and
               conditions determined by the directors.

               2.   Ranking of Preference Shares
                    ----------------------------

               2.1  No rights, privileges, restrictions or conditions
               attaching to a series of preference shares shall confer upon
               the shares of a series a priority in respect of dividends or
               in respect of return of capital in the event of the
               liquidation, dissolution or winding-up of the Corporation,
               whether voluntary or involuntary, over the shares of any
               other series of preference shares.

               2.2  The preference shares, as a class, shall be entitled to
               such priority over the common shares of the Corporation and
               over any other shares of any other class of the Corporation
               ranking junior to the preference shares with respect to
               priority in the payment of dividends and/or the return of
               capital and the distribution of assets in the event of the
               liquidation, dissolution or winding-up of the Corporation,
               whether voluntary or involuntary, or any other distribution
               of the assets of the Corporation among its shareholders for
               the purpose of winding-up its affairs as the directors of
               the Corporation shall determine at the time of determining
               the number and designation of, and the rights, privileges,
               restrictions and conditions attaching to, the series of
               preference shares.  The preference shares of any series may
               also be given such other preferences not inconsistent with
               the preferences so determined to attach to the preference
               shares as a class not inconsistent with the provisions
               hereof over the common shares and over any other shares
               ranking junior to the preference shares as the directors of
               the Corporation may determine at the time of determining the
               number and designation of, and the rights, privileges,
               restrictions and conditions attached to, the shares of such
               series.

               2.3  If any amount of cumulative dividends, whether or not
               declared, or declared non-cumulative dividends or amounts
               payable on a return of capital in the event of the
               liquidation, dissolution or winding-up of the Corporation in
               respect of a series of preference shares is not paid in
               full, the preference shares of all series shall participate
               rateably in respect of all accumulated cumulative
               dividends,whether or not declared,and all declared non-
               cumulative dividends, and in respect of amounts payable on
               return of capital in the event of liquidation, dissolution
               or winding-up of the Corporation; provided, however,that in
               the event of there being insufficient assets to satisfy in
               full all such claims as aforesaid, the claims of the holders
               of the preference shares with respect to amounts payable on
               return of capital shall first be paid and satisfied and any
               assets remaining thereafter shall be applied toward the
               payment and satisfaction of claims in respect of dividends.

               3.   Voting Rights
                    -------------

               3.1  Except as herein specifically provided or as otherwise
               provided by law, the holders of the preference shares shall
               not be entitled as such to receive notice of, to attend or
               to vote at any meeting of the shareholders of the
               Corporation.  The holders of the preference shares shall be
               entitled to receive notice of meetings of shareholders of
               the Corporation called for the purpose of authorizing the
               dissolution of the Corporation or the sale, lease or
               exchange of all or substantially all the property of the
               Corporation other than in the ordinary course of business of
               the Corporation under subsection 184(3) of the Act.

               4.   Modification
                    ------------

               4.1  The rights, privileges, restrictions and conditions
               attaching to the preference shares, as a class, may not be
               deleted, amended, modified or varied in whole or in part
               except with the prior approval of the holders of the
               preference shares given as hereinafter specified in addition
               to any other approval required by the Act.

               4.2  The approval of the holders of the preference shares
               with respect to any and all matters hereinbefore referred to
               may be given by not less than two-thirds of the votes cast
               at a meeting of the holders of the preference shares duly
               called for that purpose and held upon at least 21 days'
               notice at which the holders of not less than 25 per cent of
               the outstanding preference shares are present or represented
               by proxy.  If at any such meeting the holders of 25 per cent
               of the outstanding preference shares are not present or
               represented by proxy within one-half hour after the time
               appointed for such meeting, then the meeting shall be
               adjourned to such date being not less than 30 days later and
               at such time and place as may be determined by the person
               appointed as chairman by the persons present and entitled to
               vote at such meeting (and, for such purpose, the presence of
               one holder of preference shares or of a proxy therefor shall
               constitute a quorum) and no less than 21 days' notice shall
               be given of such adjourned meeting.  At such adjourned
               meeting the holders of the preference shares present or
               represented by proxy may transact the business for which the
               meeting was originally called and a resolution passed
               thereat by not less than two-thirds of the votes cast at
               such adjourned meeting shall constitute the approval of the
               holders of the preference shares referred to above.  The
               formalities to be observed in respect of the giving of
               notice of any such meeting or any adjourned meeting and the
               conduct thereof shall be those from time to time prescribed
               by the Act and the by-laws of the Corporation with respect
               to meetings of shareholders.  On every poll taken at a
               meeting of holders of preference shares as a class, each
               holder of preference shares entitled to vote thereat shall
               have one vote in respect of each $1.00 of stated capital
               attributable to each preference share held by him.

               B.    COMMON SHARES
                     -------------

               The common shares, as a class, shall have attached thereto
               the following rights, privileges, restrictions and
               conditions:

               1.   Dividends
                    ---------

               1.1  Subject to the prior rights of the holders of any
               shares of the Corporation ranking senior to the common
               shares with respect to priority in the payment of dividends,
               the holders of the common shares shall be entitled to
               receive dividends and the Corporation shall pay dividends
               thereon, as and when declared by the Board of Directors of
               the Corporation out of assets properly applicable to the
               payment of dividends, in such amount and in such form as the
               Board of Directors may from time to time determine and all
               dividends which the directors may declare on the common
               shares shall be declared and paid in equal amounts per share
               on all common shares at the time outstanding.  Cheques of
               the Corporation payable at par at any branch of the
               Corporation's bankers for the time being in Canada shall be
               issued in respect of any such dividends payable in cash
               (less any tax required to be withheld by the Corporation)
               and payment thereof shall satisfy such dividends.  Dividends
               which are represented by a cheque which has not been
               presented to the Corporation's bankers for payment or that
               otherwise remain unclaimed for a period of six years from
               the date on which they were declared to be payable shall be
               forfeited to the Corporation.

               2.   Dissolution
                    -----------

               2.1  In the event of the liquidation, dissolution or
               winding-up of the Corporation, whether voluntary or
               involuntary, or any other distribution of assets of the
               Corporation among its shareholders for the purpose of
               winding-up its affairs, subject to the prior rights of the
               holders of any shares of the Corporation ranking senior to
               the common shares with respect to priority in the
               distribution of assets upon liquidation, dissolution or
               winding-up, the holders of the common shares shall be
               entitled to receive the remaining property and assets of the
               Corporation and to participate equally in any distribution
               thereof without preference or distinction.

               3.   Voting Rights
                    -------------

               3.1  The holders of the common shares shall e entitled to
               receive notice of and to attend all meetings of the
               shareholders of the Corporation.  At any such meeting other
               than a meeting at which only holders of another specified
               class or series of shares of the Corporation are entitled to
               vote separately as a class or series, each common share
               shall confer one vote.

               4.   Creation of other Voting Shares
                    -------------------------------

               4.1  No other class or series of shares of the Corporation,
               other than the common shares, carrying the right to vote at
               a meeting of the Corporation (other than a meeting at which
               only the holders of a particular class or series of shares
               of the Corporation are entitled to vote separately as a
               class or series) either under all circumstances or under
               certain circumstances that have occurred and are continuing
               shall be authorized without the affirmative vote of a
               majority of the votes cast at a meeting of the holders of
               common shares voting separately as a class.



               5.   The amendment has been duly authorized as required by
                    Sections 168 & 170 (as applicable) 

                    La modification a ete dument autorisee by conformement
                    aux articles 168 et 170 Corporations Act. (selon le
                    cas) de la Loi sur les societes par actions.



               6.   The resolution authorizing the amendment was approved
                    by the shareholders/directors (as applicable) of the
                    corporation on

                    Les actionnaires ou les administrateurs (selon le cas)
                    de la societe ont approuve la resolution autorisant la
                    modification le

                                      1997/05/07
                ----------------------------------------------------------
                                  (Year, Month, Day)
                                 (annee, mois, jour)

               These articles are signed in duplicate.

               Les presents status sont siges en double exemplaire.




                                   AMERICAN ECO CORPORATION
                              ------------------------------------
                                     (Name of Corporation)
                              (Denomination sociale de la societe)


                                                                President &
                               By/Par: /s/ Michael E. McGinnis    C.E.O.
                                      ------------------------------------
                                      (Signature)   (Description of Office)
                                      (Signature)        (Fonction)

     

                                     CERTIFICATE


               The undersigned John C. Pennie, being the duly elected or
          appointed Vice-Chairman of the Board of American ECO Corporation
          (the "Corporation") does hereby certify that attached hereto is a
          true and correct copy of resolutions of the shareholders of the
          Corporation duly passed on May 7, 1997 (regarding the approval of
          future private placements) and that the same are still in full
          force and effect, unamended as of the date hereof.


          DATED at Toronto this 28th day of  May    , 1997.
                               ------      ----------

           /s/ John C. Pennie
          ---------------------------
          John C. Pennie

     

          APPROVAL OF FUTURE PRIVATE PLACEMENTS
          -------------------------------------

          The Chairman stated that the next item of business is the
          authorization and approval of future private placements and that
          the affirmative vote of at least a majority of the votes cast in
          respect thereof is required in order to pass such resolution.

          The Chairman stated that the Scrutineers' report shows that the
          following resolution has been duly carried by a majority of the
          votes cast as the meeting:

          NOW THEREFORE BE IT RESOLVED THAT:

               1.   The directors of the Corporation be and they are hereby
               authorized and directed to arrange from time to time,
               additional private placements in the capital of the
               Corporation, subject to the following terms:

                    (a)  All private placement financings will be carried
                         out by the Corporation in accordance with the
                         guidelines of The Toronto Stock Exchange and
                         specifically paragraphs 619 and 622 of The Toronto
                         Stock Exchange Company Manual.

                    (b)  The future private placements will not result in
                         additional shares of the Corporation being issued
                         in an amount exceeding the current number of
                         issued and outstanding shares in the aggregate of
                         the Corporation.

                    (c)  Any of the future private placements would be
                         substantially at arm's length and would not
                         materially affect control of the Corporation.

               2.   Any one director of officer of the Corporation be and
               he is hereby authorized and directed to execute and deliver
               under the corporate seal or otherwise all such deed,
               documents, instruments and assurances and to do all such
               acts and things as in his opinion may be necessary or
               desirable to give effect to this resolution.

          The Chairman declared that if any shareholder or proxy nominee is
          interested in the exact number of votes cast in favour of or
          against the resolution which has been voted upon by poll, he or
          she may obtain particulars after the meeting on enquiry from the
          Secretary.  Attached to these minutes is a copy of such ballot
          results.