EHIBIT 10.8.2

                                 TRUST INDENTURE

                           Dated as of October 8, 2003

BETWEEN

                       AMERICAN NATURAL ENERGY CORPORATION

                                     - and -

                      COMPUTERSHARE TRUST COMPANY OF CANADA

      Providing for the issuance of 8% Convertible Secured Debentures due
                               September 30, 2005


                                   Prepared by

                                Macleod Dixon LLP
                           3700, 400 - 3rd Avenue S.W.
                                Calgary, Alberta
                                     T2P 4H2

                                     - and -

                                 DuMoulin Black
                           10th Floor, 595 Howe Street
                           Vancouver, British Columbia
                                     V6C 2T5



                                TABLE OF CONTENTS



                                                                                                         PAGE
                                                                                                    
ARTICLE 1       INTERPRETATION.............................................................................1
        1.1     Definitions................................................................................1
        1.2     Meaning of "Outstanding"...................................................................5
        1.3     Headings, Etc..............................................................................6
        1.4     Applicable Law and Submission to Jurisdiction..............................................6
        1.5     Invalidity and Severability................................................................6
        1.6     Successors and Assigns.....................................................................6
        1.7     Day Not A Business Day.....................................................................6
        1.8     Currency...................................................................................6
        1.9     Language Clause - English..................................................................7

ARTICLE 2       THE DEBENTURES.............................................................................7
        2.1     Form, Terms and Issue of Debentures........................................................7
        2.2     Signature of Debentures....................................................................8
        2.3     Certification..............................................................................8
        2.4     Concerning Interest........................................................................8
        2.5     Additional Amounts.........................................................................8
        2.6     Debentures to Rank Pari Passu.............................................................10
        2.7     Registration of Debentures................................................................10
        2.8     Persons Entitled to Payment...............................................................11
        2.9     Mutilation, Loss, Theft or Destruction....................................................13
        2.10    Exchanges of Debentures...................................................................13
        2.11    Option of Holder as to Place of Payment...................................................13
        2.12    Trustee Not Bound to Make Inquiries.......................................................14

ARTICLE 3       REDEMPTION AND PURCHASE FOR CANCELLATION OF DEBENTURES....................................14
        3.1     Redemption of Debentures..................................................................14
        3.2     Limitations on Redemption.................................................................14
        3.3     Notice of Redemption......................................................................15
        3.4     Debentures Due on Redemption Dates........................................................15
        3.5     Deposit of Redemption Moneys..............................................................15
        3.6     Failure to Surrender Debentures Called for Redemption.....................................16
        3.7     Cancellation and Destruction of Debentures................................................16
        3.8     Surrender of Debentures for Cancellation..................................................16
        3.9     Purchase of Debentures for Cancellation...................................................16

ARTICLE 4       CONVERSION OF DEBENTURES..................................................................17
        4.1     Conversion Privilege and Conversion Price.................................................17
        4.2     Revival of Right to Convert...............................................................17
        4.3     Manner of Exercise of Right to Convert....................................................18
        4.4     Adjustment of Conversion Price............................................................19
        4.5     No Requirement to Issue Fractional Shares.................................................23
        4.6     Corporation to Reserve Shares.............................................................24
        4.7     Taxes and Charges on Conversion...........................................................24
        4.8     Cancellation of Converted Debentures......................................................24



                                      -i-



                         TABLE OF CONTENTS ... continued



                                                                                                         PAGE
                                                                                                    
        4.9     Legending of Share Certificates...........................................................24
        4.10    Certificate as to Adjustment..............................................................25
        4.11    Notice of Special Matters.................................................................26
        4.12    Protection of Trustee.....................................................................26

ARTICLE 5       COVENANTS OF THE CORPORATION..............................................................26
        5.1     To Pay Principal and Interest.............................................................26
        5.2     Negative Covenants........................................................................27
        5.3     To Carry on Business......................................................................27
        5.4     To Pay Trustee's Remuneration.............................................................27
        5.5     To Provide Financial Statements...........................................................28
        5.6     Not to Extend Time for Payment of Interest................................................28
        5.7     Trustee May Perform Covenants.............................................................28
        5.8     Stock Exchange Listing....................................................................28
        5.9     Securities Laws Compliance................................................................28
        5.10    U.S. Registration.........................................................................29
        5.11    Not to Pay Dividends and Make Capital Distributions.......................................31
        5.12    To Give Notice of Default.................................................................31
        5.13    Keeping of Books..........................................................................31
        5.14    Annual Certificate of Compliance..........................................................31
        5.15    Collateral Agency Agreement and Collateral Documents......................................31

ARTICLE 6       COLLATERAL DOCUMENTS......................................................................31
        6.1     Security..................................................................................31
        6.2     Covenant to Provide Additional Fixed Charges..............................................32
        6.3     Registration and Perfection...............................................................32
        6.4     Legal Opinions............................................................................32
        6.5     Continuing Security.......................................................................32
        6.6     Dealing with Security.....................................................................33
        6.7     Effectiveness.............................................................................33
        6.8     Conflict..................................................................................33
        6.9     Permitted Encumbrances and Indebtedness...................................................33
        6.10    Composite Mortgage........................................................................34
        6.11    Amendments to Security....................................................................34

ARTICLE 7       DEFAULT...................................................................................35
        7.1     Acceleration of Maturity..................................................................35
        7.2     Notice of Event of Default................................................................37
        7.3     Waiver of Default.........................................................................37
        7.4     Enforcement by the Trustee................................................................37
        7.5     No Suits by Debentureholders..............................................................39
        7.6     Application of Moneys by Trustee..........................................................39
        7.7     Distribution of Proceeds..................................................................40
        7.8     Remedies Cumulative.......................................................................41
        7.9     Judgment Against the Corporation..........................................................41
        7.10    Judgment Currency.........................................................................41



                                      -ii-



                         TABLE OF CONTENTS ... continued



                                                                                                         PAGE
                                                                                                    
        7.11    Immunity of Shareholders and Others.......................................................41
        7.12    Trustee Appointed Attorney................................................................42

ARTICLE 8       SATISFACTION AND DISCHARGE................................................................42
        8.1     Cancellation and Destruction..............................................................42
        8.2     Non-Presentation of Debentures............................................................42
        8.3     Repayment of Unclaimed Moneys.............................................................43
        8.4     Discharge.................................................................................43

ARTICLE 9       SUCCESSOR CORPORATIONS....................................................................43
        9.1     Certain Requirements......................................................................43
        9.2     Vesting of Powers in Successor............................................................44

ARTICLE 10      MEETINGS OF DEBENTUREHOLDERS..............................................................44
        10.1    Right to Convene Meeting..................................................................44
        10.2    Notice of Meetings........................................................................44
        10.3    Chairman..................................................................................45
        10.4    Quorum....................................................................................45
        10.5    Power to Adjourn..........................................................................45
        10.6    Show of Hands.............................................................................45
        10.7    Poll......................................................................................46
        10.8    Voting....................................................................................46
        10.9    Regulations...............................................................................46
        10.10   Persons Entitled to Attend Meetings.......................................................47
        10.11   Powers Exercisable by Extraordinary Resolution............................................47
        10.12   Meaning of "Extraordinary Resolution".....................................................49
        10.13   Powers Cumulative.........................................................................50
        10.14   Minutes...................................................................................50
        10.15   Instruments In Writing....................................................................51
        10.16   Binding Effect of Resolutions.............................................................51
        10.17   Evidence of Rights of Debentureholders....................................................51

ARTICLE 11      NOTICES...................................................................................51
        11.1    Notice to Corporation and Trustee.........................................................51
        11.2    Notice to Debentureholders................................................................52

ARTICLE 12      CONCERNING THE TRUSTEE....................................................................53
        12.1    No Conflict of Interest...................................................................53
        12.2    Replacement of Trustee....................................................................53
        12.3    Duties of Trustee.........................................................................54
        12.4    Reliance Upon Declarations................................................................54
        12.5    Evidence and Authority to Trustee.........................................................54
        12.6    Officers' Certificate as Evidence.........................................................56
        12.7    Experts, Advisers and Agents..............................................................56
        12.8    Trustee May Deal in Debentures............................................................56
        12.9    Investment of Moneys Held by Trustee......................................................56
        12.10   Trustee Not Ordinarily Bound..............................................................57
        12.11   Trustee Not Required to Give Security.....................................................57



                                     -iii-



                         TABLE OF CONTENTS ... continued



                                                                                                       PAGE
                                                                                                  
        2.12   Trustee Not to be Appointed Receiver......................................................57
        2.13   Trustee Not Bound to Act on Corporation's Request.........................................57
        2.14   Conditions Precedent to Trustee's Obligations to Act Hereunder............................57
        2.15   Authority to Carry on Business............................................................58
        2.16   Acceptance of Trust.......................................................................58
        2.17   Direction of Trustee's Actions by Holders.................................................58
        2.18   Indemnity.................................................................................59
        2.19   Environmental Indemnity...................................................................59
        2.20   Anti-Money Laundering and Anti-Terrorist Legislation......................................60

ARTICLE 13     SUPPLEMENTAL INDENTURES...................................................................60
        13.1   Supplemental Indenture....................................................................60

ARTICLE 14     EXECUTION AND FORMAL DATE.................................................................61
        14.1   Execution.................................................................................61
        14.2   Formal Date...............................................................................62

SCHEDULE A -   Form of Debenture........................................................................A-1



                                      -iv-



                  THIS INDENTURE made as of the 8th day of October, 2003.

BETWEEN:

                  AMERICAN NATURAL ENERGY CORPORATION, a corporation organized
                  under the laws of the State of Oklahoma (hereinafter called
                  the "CORPORATION"),

                                     - and -

                  COMPUTERSHARE TRUST COMPANY OF CANADA, a trust company having
                  an office in the City of Vancouver, in the Province of British
                  Columbia (hereinafter called the "TRUSTEE"),

WITNESSETH THAT:


         WHEREAS the Corporation is desirous of raising money for its corporate
purposes and with a view to so doing is desirous of creating and issuing the
Debentures provided for by this indenture;

         AND WHEREAS the Corporation, under the laws relating thereto, is duly
authorized to create and issue the Debentures to be issued as herein provided;

         AND WHEREAS all necessary by-laws and resolutions of the directors of
the Corporation have been duly enacted, passed, and/or confirmed and other
proceedings taken and conditions complied with to make the creation and issuance
of the Debentures proposed to be issued hereunder and this indenture and the
other documents and agreements (including the Collateral Agency Agreement and
the Collateral Documents) contemplated herein and the execution thereof legal,
valid and binding on the Corporation in accordance with the laws relating to the
Corporation;

         AND WHEREAS the foregoing recitals are made as representations and
statements of fact by the Corporation and not by the Trustee;

         NOW THEREFORE it is hereby covenanted, agreed and declared as follows:

                                   ARTICLE 1
                                 INTERPRETATION
                                 --------------

1.1      DEFINITIONS
         -----------

         In this indenture and, in the Debentures, unless there is something in
the subject matter or context inconsistent therewith, the expressions following
shall have the following meanings, namely:



         "THIS INDENTURE", "THIS TRUST INDENTURE", "HERETO", "HEREIN", "HEREBY",
         "HEREUNDER", "HEREOF" and similar expressions refer to this indenture
         and not to any particular Article, Section, subsection, paragraph,
         clause, subdivision or other portion hereof and include any and every
         instrument supplemental or ancillary hereto;

         "ADDITIONAL AMOUNTS" has the meaning set forth in Section 2.5;

         "BUSINESS DAY" means a day which is not a Saturday or Sunday or a civic
         or statutory holiday in Vancouver, British Columbia;

         "CHANGE OF CONTROL" of the Corporation will be deemed to have occurred
         at such time as (i) any person or group of related persons for purposes
         of Section 13(d) of the U.S. Exchange Act becomes the beneficial owner
         (as defined under Rule 13d-3 or any successor rule or regulation
         promulgated under the U.S. Exchange Act), directly or indirectly, of
         50% or more of the total voting power of the common shares in the
         capital of the Corporation or (ii) there shall be consummated any
         consolidation or merger of the Corporation in which the Corporation is
         not the continuing or surviving corporation or pursuant to which the
         common shares in the capital of the Corporation would be converted into
         cash, securities or other property, other than a merger or
         consolidation of the Corporation in which the holders of the common
         shares in the capital of the Corporation outstanding immediately prior
         to the consolidation or merger hold, directly or indirectly, at least a
         majority of the common shares in the capital of the surviving
         corporation immediately after such consolidation or merger;

         "COLLATERAL AGENCY AGREEMENT" means the collateral agency agreement
         dated October 8, 2003 being entered into between the Trustee and the
         Collateral Agent, and acknowledged and consented to by the Corporation,
         pursuant to which the Collateral Agent will hold the Security as
         security for the indebtedness and obligations of the Corporation under,
         inter alia, this indenture and the Debentures;

         "COLLATERAL AGENT" means Computershare Trust Company, Inc., a Colorado
         trust company having an office in the City of Golden, in the State of
         Colorado, or its successor or successors for the time being as
         collateral agent under the Collateral Agency Agreement;

         "COLLATERAL DOCUMENTS" means the Mortgage, Collateral Assignment,
         Security Agreement, and Financing Statement dated October 8, 2003
         granted by the Corporation in favour of the Collateral Agent and
         providing a first charge on all assets of the Corporation, including
         (without limitation) oil and gas leases and rights, wells, facilities
         and seismic data;

         "COMMON SHARES" means the shares of Common Stock, par value $0.01, in
         the capital of the Corporation as such shares exist at the date of this
         indenture; provided that in the event of a subdivision, redivision,
         reduction, combination or consolidation thereof, or successive such
         subdivisions, redivisions, reductions, combinations or consolidations
         then, subject to adjustments, if any, having been made in accordance
         with the provisions


                                      -2-



         of Section 4.4, "COMMON SHARES" shall thereafter mean the shares
         resulting from such change, subdivision, redivision, reduction,
         combination or consolidation;

         "CONVERSION PRICE" means the dollar amount for which each Common Share
         may be issued from time to time upon the conversion of Debentures in
         accordance with the provisions of Article 4;

         "CORPORATION" means American Natural Energy Corporation and includes
         any successor corporation to or of the Corporation which shall have
         complied with the provisions of Article 9;

         "CORPORATION'S AUDITORS" or "AUDITORS OF THE CORPORATION" means
         PricewaterhouseCoopers LLP, Chartered Accountants or such other
         independent firm of chartered or certified public accountants as may be
         duly appointed as auditors of the Corporation from time to time;

         "COUNSEL" means a lawyer or firm of lawyers retained or employed by the
         Trustee or retained or employed by the Corporation and acceptable to
         the Trustee;

         "DEBENTURES" means the 8% Convertible Secured Debentures of the
         Corporation issued hereunder and for the time being outstanding;

         "DEBENTUREHOLDERS" or "HOLDERS" means the several persons for the time
         being entered in the registers hereinafter mentioned as holders of
         Debentures;

         "DIRECTOR" means a director of the Corporation for the time being and
         "DIRECTORS" or "BOARD OF directors" means the board of directors of the
         Corporation;

         "EVENT OF DEFAULT" means any event specified in Section 7.1, continued
         for the period of time, if any, therein designated;

         "INDEBTEDNESS" means, for any person, whether recourse is to all or a
         portion of the assets of such person and whether or not contingent, (i)
         every obligation of such person for money borrowed, (ii) every
         obligation of such person evidenced by bonds, debentures, notes or
         similar instruments, (iii) every reimbursement obligation of such
         person with respect to letters of credit, bankers' acceptances or
         similar facilities issued for the account of such person, (iv) every
         obligation of such person issued or assumed as the deferred purchase
         price of property or services (but excluding trade accounts payable or
         accrued liabilities arising in the ordinary course of business), (v)
         every capitalized lease obligation of such person, (vi) every
         obligation of such person with respect to swap or hedging agreements
         (whether related to interest, currency, commodity, equity or otherwise,
         and whether settled by cash, physical delivery or otherwise), and (vii)
         every obligation of the type referred to in clauses (i) through (vi) of
         another, the payment of which such person has guaranteed or is
         otherwise responsible or liable for, directly or indirectly, as
         obligor, guarantor or otherwise;

         "INTEREST PAYMENT DATES" has the meaning set forth in Section 2.1;


                                      -3-



         "OFFICERS' CERTIFICATE" means a certificate signed by the Chairman of
         the Board, the President or any Vice-President and by any other
         Vice-President, the Secretary, the Treasurer, the Controller, an
         Assistant Secretary or an Assistant Treasurer of the Corporation;

         "PERSON" means an individual, a corporation, a company, a partnership,
         a trustee or an unincorporated organization and pronouns have a similar
         extended meaning;

         "RECORD DATE" has the meaning set forth in Section 2.1;

         "REPRESENTATIVE DIRECTOR" means each of Jules Poscente and John J.
         Fleming and, if either of them (or any replacement approved and
         appointed or elected as a director of the Corporation as indicated
         hereinafter) resigns or ceases to be qualified to act as a director of
         the Corporation, such other individual who (i) is approved as a
         replacement director for such resigning or ceasing to qualify director
         by resolution of the Debentureholders, (ii) duly and validly consents
         to act as such, and (iii) is duly and validly appointed or elected as a
         director of the Corporation;

         "SECURITY" has the meaning set forth in Section 6.1;

         "SECURITY INTEREST" means a mortgage, pledge, deposit by way of
         security, charge, hypothec, assignment by way of security, security
         interest, lien (whether statutory, equitable or at common or civil
         law), title retention agreement, lease with option to purchase, a right
         of off-set (if created for the purpose of securing, directly or
         indirectly, indebtedness or other debts or liabilities), and any other
         interest in property or assets, howsoever created or arising, that
         secures payment or performance of an obligation (including a lease
         without option to purchase if the economic effect thereof is to secure
         an obligation other than reasonable rent for the current use of the
         leased property, and a trust, including statutory deemed trusts);

         "SUBSIDIARY" or "SUBSIDIARY CORPORATION" means any person of which more
         than 50% of the outstanding Voting Shares are owned, directly or
         indirectly, by or for the Corporation, provided that the ownership of
         such shares confers the right to elect at least a majority of the board
         of directors (or similar governing body) of such person and includes
         any person in like relation to a Subsidiary;

         "TRUSTEE" means Computershare Trust Company of Canada or its successor
         or successors for the time being as trustee hereunder;

         "U.S. EXCHANGE ACT" means the Securities Exchange Act of 1934, as
         amended, of the United States of America;

         "U.S. SECURITIES ACT" means the Securities Act of 1933, as amended, of
         the United States of America;

         "VOTING SHARES" means shares of capital stock, or other equity
         interests, of any class of any person carrying voting rights under all
         circumstances, provided that, for the purposes of such definition,
         shares or other equity interests which only carry the right to vote


                                      -4-



         conditionally on the happening of an event shall not be considered
         Voting Shares, whether or not such event shall have occurred, nor shall
         any shares or other equity interests be deemed to cease to be Voting
         Shares solely by reason of a right to vote accruing to shares or other
         equity interests of another class or classes by reason of the happening
         of such event; and

         "WRITTEN DIRECTION OF THE CORPORATION" means an instrument in writing
         signed by the Chairman of the Board, the President or a Vice-President
         together with any other Vice-President, the Secretary, the Treasurer,
         the Controller, an Assistant Secretary or an Assistant Treasurer of the
         Corporation.

         Words importing the singular number only shall include the plural and
vice versa and words importing any of the masculine, feminine or neuter genders
shall include the others and words importing persons shall include firms and
corporations and vice versa.

1.2      MEANING OF "OUTSTANDING"
         ------------------------

         Every Debenture certified and delivered by the Trustee hereunder shall
be deemed to be outstanding until it shall be cancelled or delivered to the
Trustee for cancellation or moneys for the payment or redemption thereof shall
have been set aside under Section 3.6 or Section 8.2, as the case may be,
provided that:

         (a)   Debentures which have been partially redeemed, purchased or
               converted shall be deemed to be outstanding only to the extent of
               the unredeemed, unpurchased or unconverted part of the principal
               amount thereof;

         (b)   if a new Debenture has been issued in substitution for a
               Debenture which has been lost, stolen or destroyed, only the
               newly-issued Debenture shall be counted for the purpose of
               determining the aggregate principal amount of Debentures
               outstanding; and

         (c)   for the purposes of any provision of this indenture entitling
               holders of outstanding Debentures to vote, sign consents,
               requisitions or other instruments or take any other action under
               this indenture, or to constitute a quorum for any meeting of
               Debentureholders, Debentures owned directly or indirectly,
               legally or equitably, by the Corporation or any Subsidiary shall
               be disregarded except that:

               (i)   for the purpose of determining whether the Trustee shall be
                     protected in relying on any such vote, consent, requisition
                     or other instrument or action, or on the Debentureholders
                     present or represented at any meeting, only the Debentures
                     which the Trustee knows are so owned shall be so
                     disregarded; and

               (ii)  Debentures so owned which have been pledged in good faith
                     other than to the Corporation or a Subsidiary shall not be
                     so disregarded if the pledgee shall establish to the
                     satisfaction of the Trustee the pledgee's right to vote,
                     and to sign consents, requisitions or other instruments in
                     respect of, such


                                      -5-



                     Debentures in his discretion free from the control of the
                    Corporation or any Subsidiary.

1.3      HEADINGS, ETC.
         --------------

         The division of this indenture into Articles and Sections, the
provision of a table of contents and the insertion of headings are for
convenience of reference only and shall not affect the construction or
interpretation of this indenture or of the Debentures.

1.4      APPLICABLE LAW AND SUBMISSION TO JURISDICTION
         ---------------------------------------------

         This indenture and the Debentures shall be construed in accordance with
the laws of the Province of British Columbia and shall be treated in all
respects as British Columbia contracts.

         Any legal action or proceeding with respect to this indenture or the
Debentures, or actions of the Trustee or the Corporation, may be brought in the
courts of the Province of British Columbia, and the parties hereto submit to the
non-exclusive jurisdiction of the courts of the Province of British Columbia
with respect to all actions and proceedings in respect of this indenture and the
Debentures.

         Each of the Corporation and the Trustee hereby irrevocably waive any
objections, including any objection to the laying of venue or based on the
grounds of forum non convenience which it may now or hereafter have to the
bringing of such action or proceeding in such jurisdiction.

1.5      INVALIDITY AND SEVERABILITY
         ---------------------------

         Any provision hereof which is prohibited or unenforceable shall be
ineffective only to the extent of such prohibition or unenforceability, without
invalidating the remaining provisions hereof.

1.6      SUCCESSORS AND ASSIGNS
         ----------------------

         All covenants and agreements in this indenture by the Corporation shall
bind its successors and assigns, whether expressed or not.

1.7      DAY NOT A BUSINESS DAY
         ----------------------

         In the event that any day on or before which any action is required to
be taken hereunder is not a business day, then such action shall be required to
be taken on or before the requisite time on the next succeeding day that is a
business day.

1.8      CURRENCY
         --------

         All references to currency herein and in the Debentures shall be to
lawful money of the United States of America, unless otherwise expressed.


                                      -6-



1.9      LANGUAGE CLAUSE - ENGLISH
         -------------------------
         The parties hereto have agreed and required that this indenture, the
Debentures and all documents and notices related thereto and/or resulting
therefrom be drawn up in the English language. Les parties aux presentes ont
convenu et demande que la presente acte de fiducie, les debentures et tous les
documents et avis afferents et(ou) en decoulant soient rediges en anglais.

                                   ARTICLE 2
                                 THE DEBENTURES
                                 --------------

2.1      FORM, TERMS AND ISSUE OF DEBENTURES
         -----------------------------------

         The Debentures to be issued hereunder shall consist of and be limited
to the aggregate principal amount of $12,000,000 in lawful money of the United
States of America and shall be designated as "8% CONVERTIBLE SECURED
DEBENTURES". Debentures, to a maximum aggregate principal amount of $12,000,000,
may be executed by the Corporation from time to time and, forthwith after such
execution, shall be delivered to the Trustee and shall be certified by the
Trustee and delivered to or to the order of the Corporation pursuant to a
written direction of the Corporation without the Trustee receiving any
consideration therefor.

         The Debentures shall be dated as of the date of original issue thereof,
shall mature on the 30th day of September, 2005 and shall bear interest (subject
to the provisions of Sections 2.4 and 2.5) from the date of original issue
thereof at the rate of 8% per annum, calculated and payable, after as well as
before maturity, default and judgment, with interest on amounts in default at
the same rate, in equal quarterly amounts on March 31, June 30, September 30 and
December 31 of each year ("INTEREST PAYMENT DATES") and on maturity, with the
first payment due December 31, 2003. Interest payable on the Debentures on any
interest payment date (other than on maturity) shall be payable to the
registered holder of such Debenture on the date (the "RECORD DATE") which is 10
days prior to the applicable interest payment date.

         The principal of the Debentures and interest thereon shall be payable
in lawful money of the United States of America at the principal office of the
Trustee in the City of Vancouver, in the Province of British Columbia.

         The Debentures shall be issued only as fully registered Debentures in
denominations of $1,000 and integral multiples of $1,000. The Debentures and the
certificate of the Trustee endorsed thereon shall be in the English language
substantially in the form set forth in Schedule A hereto, with such insertions,
omissions, substitutions or other variations as shall be required or permitted
by this indenture and may have imprinted or otherwise reproduced thereon such
legend or legends or endorsements, not inconsistent with the provisions of this
indenture, as may be required to comply with any law or with any rules or
regulations pursuant thereto or with any rules or regulations of any securities
exchange or securities regulatory authority or to conform with general usage,
all as may be determined by the officer of the Corporation executing such
Debentures in accordance with Section 2.2 hereof, as conclusively evidenced by
his execution of a Debenture. The Debentures shall bear such distinguishing
letters and numbers as the Trustee may approve. The Debentures may be engraved,
printed or lithographed, or partly in one form and partly in another, as the
Corporation may determine.


                                      -7-



2.2      SIGNATURE OF DEBENTURES
         -----------------------

         The Debentures shall be signed (either manually or by facsimile
signature) by any one of the Chairman of the Board, the President or a Vice of
the Corporation. A facsimile signature upon any of the Debentures shall for all
purposes of this indenture be deemed to be the signature of the person whose
signature it purports to be and to have been signed at the time such facsimile
signature is reproduced. Notwithstanding that any person whose signature, either
manual or in facsimile, may appear on any of the Debentures is not, at the date
of this indenture or at the date of the Debentures or at the date of the
certifying and delivery thereof, the holder of the office indicated, any such
Debentures shall be valid and binding upon the Corporation and entitled to the
benefits of this indenture.

2.3      CERTIFICATION
         -------------

         No Debenture shall be issued or, if issued, shall be obligatory or
shall entitle the holder to the benefits of this indenture, until it has been
certified by or on behalf of the Trustee substantially in the form set out in
Schedule A hereto or in some other form approved by the Trustee. Such
certification on any Debenture shall be conclusive evidence that such Debenture
is duly issued, is a valid obligation of the Corporation and is entitled to the
benefits hereof.

         The certificate of the Trustee signed on the Debentures hereinafter
mentioned shall not be construed as a representation or warranty by the Trustee
as to the validity of this indenture or of the Debentures or as to the issuance
of the Debentures and the Trustee shall in no respect be liable or answerable
for the use made of the Debentures or any of them or the proceeds thereof. The
certificate of the Trustee signed on the Debentures shall, however, be a
representation and warranty by the Trustee that the Debentures have been duly
certified by or on behalf of the Trustee pursuant to the provisions of this
indenture.

2.4      CONCERNING INTEREST
         -------------------

         Every Debenture issued hereunder, whether issued originally or in
exchange for other Debentures, shall bear interest from its date of issue or
from the last interest payment date to which interest shall have been paid or
made available for payment on the outstanding Debentures, whichever shall be the
later.

         Interest on each Debenture will cease to accrue from the maturity date
of such Debenture unless, upon due presentation thereof, payment of principal
and any accrued and unpaid interest is improperly withheld or refused.

2.5      ADDITIONAL AMOUNTS
         ------------------

         All payments made by the Corporation in respect of the Debentures will
be made without withholding or deduction for or on account of any present or
future taxes, duties, assessments, or other governmental charges of any nature
imposed or levied by or on behalf of the United States of America or any
political subdivision or authority thereof or therein having power to tax,
unless the Corporation is required by law or by the interpretation or
administration thereof by the relevant government authority or agency to
withhold or deduct such taxes, duties, assessments, or other governmental
charges. The Corporation will make the required withholding or


                                      -8-



deduction, make payment of the amount so withheld or deducted to the appropriate
government authority and pay any additional amounts that may be necessary to
ensure that the net amounts received by the Debentureholders after the
withholding or deduction (including any withholding or deduction for such
additional amounts and after taking into account any taxes payable in respect of
such additional amounts) equals the respective amounts of principal and interest
which would have been receivable in respect of the Debentures in the absence of
the withholding or deduction ("ADDITIONAL AMOUNTS"). The Corporation shall
furnish to the applicable Debentureholders evidence of payment to the relevant
taxation authority of all amounts so deducted or withheld. No Additional Amounts
shall, however, be payable:

         (a)   to the extent that the taxes, duties, assessments or other
               governmental charges would not have been imposed but for the
               failure of the Debentureholder to comply with any certification,
               identification or other reporting requirements concerning the
               nationality, residence, identity or connection with the United
               States of America of the Debentureholder if:

               (i)   such compliance is required or imposed by law as a
                     precondition to exemption from all or a part of the tax,
                     duty, assessment or other governmental charge; and

               (ii)  at least 30 days prior to the first interest payment date
                     with respect to which this clause (a) will apply, the
                     Corporation has notified the Debentureholder that the
                     Debentureholder will be required to comply with this
                     requirement; provided, however, that this clause (a) shall
                     no longer apply if a Debentureholder subsequently complies
                     with a certification, identification or other reporting
                     requirement (as described above) and under applicable law
                     such compliance satisfies a precondition to exemption from
                     all or a part of the tax, duty, assessment or other
                     governmental charge; or

         (b)   to persons other than purchasers of the Debentures from the
               Corporation at the time of the first issuance of the Debentures.

         If as a result of any payment by the Corporation in respect of the
Debentures, any Debentureholder is required to pay any withholding tax with
respect to such payment to the United States of America or any political
subdivision of authority thereof or therein having power to tax, then the
Corporation will, upon demand by such Debentureholder, indemnify such
Debentureholder for the payment of any such taxes, together with any interest,
penalties and expenses in connection therewith, and for any taxes on such
indemnity payment. All such amounts shall be payable by the Corporation on
demand and shall bear interest at the rate set forth herein calculated from the
date demanded by such holder to the date paid by the Corporation.

         If, following any payment made by the Corporation to any
Debentureholder under the first paragraph above or any indemnity payment made by
the Corporation to any Debentureholder under the second paragraph above, such
Debentureholder shall receive or be granted a refund, credit, allowance or
remission in respect of the taxes or duties resulting in the


                                      -9-



payment thereof and such Debentureholder is able to readily identify such
refund, credit, allowance or remission as being attributable to such taxes or
duties, such Debentureholder shall, to the extent that it can do so without
prejudice to the retention of the amount of such refund, credit, allowance or
remission and without prejudice to the right of such Debentureholder to obtain
any other relief or allowance which may be available to it, reimburse the
Corporation with such amount as such Debentureholder, acting reasonably,
determines to be the amount of money attributable to such refund, credit,
allowance or remission that may be paid by such Debentureholder to leave it
(after such reimbursement) in no worse position than it would have been in had
there been no such deduction or withholding or payment of tax which resulted in
the payment under the first two paragraphs above. Such Debentureholder may
charge to the Corporation (and may deduct from amounts reimbursable to the
Corporation hereunder) a fee reasonably determined by such Debentureholder to
compensate it for any additional effort expended or cost incurred in determining
such credit or remission or allocating it to the Corporation. Notwithstanding
the foregoing, Debentureholders shall be entitled to arrange their tax affairs
as they think fit, and no Debentureholder shall be obligated to disclose to the
Corporation, or any of its agents, any computation made by such Debentureholder
in connection with this paragraph or any information regarding such
Debentureholder's tax status or affairs.

2.6      DEBENTURES TO RANK PARI PASSU
         -----------------------------

         The Debentures may be issued in such amounts, to such persons and on
such terms not inconsistent with the provisions of this indenture, and either at
par or at a discount or at a premium, as the directors may determine. Each
Debenture as soon as issued shall, subject to the terms hereof, be equally and
proportionately entitled to the benefits hereof, as if all of the Debentures had
been issued and negotiated simultaneously.

2.7      REGISTRATION OF DEBENTURES
         --------------------------

         The Corporation shall cause to be kept registers hereinafter referred
to in which shall be entered the names and addresses of the holders of
Debentures and particulars of the Debentures held by them respectively and of
all transfers of Debentures. No transfer of a Debenture shall be valid unless
made on the appropriate register by the holder or his executors or
administrators or other legal representative, or his or their attorney duly
appointed by an instrument in writing in form and execution satisfactory to the
Trustee or other registrar, and upon compliance with such reasonable
requirements as the Trustee or other registrar may prescribe, nor unless such
transfers have been duly noted on such Debenture by the Trustee or other
registrar.

         The registers referred to in this Section 2.7 shall be kept by and at
the principal office of the Trustee in the City of Vancouver, British Columbia
and at such other place or places and by the Trustee or by such other registrar
or registrars, if any, as the Corporation with the approval of the Trustee may
designate from time to time.

         The registers referred to in this Section 2.7 shall at all reasonable
times be open for inspection by the Corporation, by the Trustee and by any
Debentureholder.

         The holder of a Debenture may at any time and from time to time have
such Debenture transferred at any of the places at which a register is kept
pursuant to the provisions of this


                                      -10-



Section 2.7, in accordance with such reasonable regulations as the Trustee or
other registrar may prescribe.

         Neither the Corporation nor the Trustee shall be required (i) to
transfer or exchange any Debentures on the day of any selection by the Trustee
of any Debentures to be redeemed or purchased or during the five preceding
business days or thereafter until after the mailing of any notice of redemption
or purchase; or (ii) to transfer or exchange any Debenture selected or called
for redemption in whole or in part unless upon due presentation thereof such
Debenture or part thereof called for redemption shall not be redeemed.

         As a prior condition to the transfer of a Debenture, each proposed
transferee of a Debenture shall (i) deliver to the Trustee an opinion of counsel
acceptable to the Trustee and the Corporation, or otherwise satisfy the
Corporation, that the Debenture can be transferred without violation of the
registration requirements of the U.S. Securities Act and (ii) deliver to the
Trustee an acknowledgement of being aware that the Debentures are "restricted
securities" as defined under Rule 144 under the U.S. Securities Act and have not
been registered under the U.S. Securities Act or the securities laws of any
state of the United States, that the Corporation has no obligation to register
any of the Debentures under the U.S. Securities Act or the securities laws of
any state of the United States, that the Debentures may not be offered or sold
unless registered in accordance with United States federal securities laws and
all applicable state securities laws or exemptions from such requirements are
available, that the Trustee will not register any transfer of any Debenture not
made pursuant to an available exemption from the registration requirements of
the U.S. Securities Act and that the Debentures shall bear a legend to that
effect.

         Subject to applicable law, none of the Trustee, any registrar for any
of the Debentures and the Corporation shall be charged with notice of or be
bound to see to the execution of any trust, whether expressed, implied or
constructive, in respect of any Debenture and the Trustee or the Corporation may
transfer any Debenture on the direction of the holder thereof, whether named as
trustee or otherwise, as though that person were the beneficial owner thereof.

         Except in the case of the register required to be kept at the City of
Vancouver, British Columbia, the Corporation shall have power at any time to
close any register upon which the registration of any Debenture appears and in
that event it shall transfer the records thereof to another existing register or
to a new register and thereafter such Debentures shall be deemed to be
registered on such existing or new register, as the case may be.

         The Trustee shall, when requested so to do by the Corporation, furnish
the Corporation with a list of names and addresses of the registered holders of
Debentures showing the principal amounts and serial numbers of such Debentures
held by each holder.

2.8      PERSONS ENTITLED TO PAYMENT
         ---------------------------

         The person in whose name any Debenture shall be registered shall be
deemed and regarded as the owner thereof for all purposes of this indenture and
payment of or on account of the principal of such Debentures shall be made only
to or upon the order in writing of such holder thereof and such payment shall be
a good and sufficient discharge to the Trustee and any registrar and to the
Corporation and any paying agent for the amounts so paid.


                                      -11-



         At least four business days prior to each interest payment date (except
for interest payable at maturity or on redemption which may be paid upon
presentation and surrender of such Debentures for payment) the Corporation
either directly or through the Trustee or an agent of the Trustee shall forward
or cause to be forwarded by prepaid post, to the holder at the record date for
such interest payment date, at his address appearing on the appropriate register
hereinbefore mentioned, or in the case of joint holders, to the one whose name
appears first on such register, a cheque for such interest (less any tax
required by law to be deducted) payable to the order of such holder or holders
and negotiable in immediately available funds at par at any of the places at
which interest upon such Debentures is payable. The forwarding of such cheque
shall satisfy and discharge the liability for the interest upon such Debentures
to the extent of the sum or sums represented thereby (plus the amount of any tax
deducted as aforesaid) unless such cheque is not paid on presentation; provided
that in the event of the non-receipt of such cheque by the holder, or the loss
or destruction thereof, the Corporation, upon being furnished with satisfactory
evidence of such non-receipt, loss or destruction and an indemnity reasonably
satisfactory to it, shall issue to such holder a replacement cheque for the
amount of such cheque.

         The registered holder for the time being of any Debenture shall be
entitled to the principal moneys and interest evidenced by such Debenture, free
from all equities or rights of set-off or counterclaim between the Corporation
and the original or any intermediate holder thereof and all persons may act
accordingly and a transferee of a Debenture shall, after an appropriate form of
transfer is lodged with the Trustee or other registrar and upon compliance with
all other conditions in that behalf required by this indenture or by any
conditions contained in such Debenture or by law, be entitled to be entered on
the appropriate register as the owner of such Debenture free from all equities
or rights of set-off or counterclaim between the Corporation and his transferor
or any previous holder thereof, save in respect of equities of which the
Corporation is required to take notice by statute or by order of a court of
competent jurisdiction.

         Delivery to the Corporation by a Debentureholder of a Debenture or the
receipt of such holder for the principal moneys and interest evidenced by such
Debenture respectively shall be a good discharge to the Corporation, which shall
not be bound to enquire into the title of such holder, save as ordered by some
court of competent jurisdiction or as required by statute. Neither the
Corporation, the Trustee nor any registrar shall be bound to see to the
execution of any trust affecting the ownership of any Debenture nor be affected
by notice of any equity that may be subsisting in respect thereof.

         Where Debentures are registered in more than one name the principal
moneys and interest from time to time payable in respect thereof may be paid by
cheque payable to the order of all such holders, failing written instruction
from them to the contrary, and such payment and receipt thereof by such holders
shall be a valid discharge to the Trustee and any registrar and to the
Corporation and any paying agent.

         In the case of the death of one or more joint registered holders, the
principal moneys of and interest on any Debentures may be paid to the surviving
registered holder or holders, as the case may be, whose receipt therefor shall
constitute a valid discharge to the Trustee and any registrar and to the
Corporation and any paying agent.


                                      -12-



2.9      MUTILATION, LOSS, THEFT OR DESTRUCTION
         --------------------------------------

         In case any of the Debentures issued hereunder shall become mutilated
or be lost, stolen or destroyed, the Corporation, in its discretion, may issue,
and thereupon the Trustee shall certify and deliver, a new Debenture upon
surrender and cancellation of the mutilated Debenture, or in the case of a lost,
stolen or destroyed Debenture, in lieu of and in substitution for the same, and
the substituted Debenture shall be in substantially the same form as the
Debenture originally issued and shall be entitled to the benefits of this
indenture equally with all other Debentures issued or to be issued hereunder
without preference or priority one over another. In case of loss, theft or
destruction the applicant for a substituted Debenture shall furnish to the
Corporation and to the Trustee such evidence of ownership and of such loss,
theft or destruction as shall be satisfactory to them in their discretion and
shall also furnish an indemnity satisfactory to them in their discretion. The
applicant shall pay all reasonable expenses incidental to the issuance of any
substituted Debenture.

2.10     EXCHANGES OF DEBENTURES
         -----------------------

         Debentures of any denomination may be exchanged for Debentures of any
other authorized denomination or denominations, any such exchange to be for an
equivalent aggregate principal amount of Debentures. Exchanges of Debentures may
be made at the offices of the Trustee or other registrar where a register is
maintained for such Debentures. Any Debentures tendered for exchange shall be
surrendered to the Trustee or appropriate registrar and shall be cancelled. The
Corporation shall execute and the Trustee shall certify all Debentures necessary
to carry out exchanges as aforesaid. For greater certainty, any such exchange of
Debentures of any denomination for an equivalent aggregate principal amount of
Debentures of any other authorized denomination or denominations is not intended
to be and will not constitute the repayment of the debt obligation evidenced by
the Debenture or the Debentures so exchanged or the issuance of a new debt
obligation.

         Except as herein otherwise provided, in every case of exchange of
Debentures of any denomination or form for other Debentures and for any transfer
of Debentures, the Trustee or other registrar may make a sufficient charge to
reimburse it for any stamp, security transfer taxes or other governmental charge
required to be paid and, in addition, a reasonable charge for its services for
each Debenture exchanged or transferred, and may charge a reasonable sum for
every Debenture issued upon such exchange or transfer, and payment of the said
charges shall be made by the party requesting such exchange or transfer as a
condition precedent thereto.

         Debentures issued in exchange for Debentures which at the time of such
issue have been elected or called for redemption at a later date shall be deemed
to have been selected or called for redemption in the same manner and shall have
noted thereon a statement to that effect.

2.11     OPTION OF HOLDER AS TO PLACE OF PAYMENT
         ---------------------------------------

         Except as herein otherwise provided, all sums which may at any time
become payable, whether at maturity or on a declaration or on redemption or
otherwise, on account of any Debenture or interest thereon shall be payable at
the option of the holder at any of the places at which the principal of and
interest on such Debenture are payable.


                                      -13-



2.12     TRUSTEE NOT BOUND TO MAKE INQUIRIES
         -----------------------------------

         The Trustee, prior to the certification and delivery of any Debentures,
shall not be bound to make any inquiry or investigation as to the correctness of
the matters set out in any of the resolutions, opinions, certificates or other
documents required by the provisions of this indenture, but shall be entitled to
accept and act upon the said resolutions, opinions, certificates and other
documents. The Trustee may nevertheless, in its discretion, require further
proof in cases where it deems further proof desirable.

                                   ARTICLE 3
             REDEMPTION AND PURCHASE FOR CANCELLATION OF DEBENTURES
             ------------------------------------------------------

3.1      REDEMPTION OF DEBENTURES
         ------------------------

         Subject to the provisions of Section 3.2, the Debentures shall be
redeemable prior to maturity, in whole at any time, but not in part, at the
option of the Corporation (in the manner herein provided and in accordance with
and subject to the provisions herein set forth) at prices equal to the principal
amount, together with accrued and unpaid interest on the principal amount of the
Debentures so redeemed to the date fixed for redemption (the applicable price,
including accrued and unpaid interest, at which Debentures may be redeemed being
hereinafter referred to as the "REDEMPTION PRICE").

3.2      LIMITATIONS ON REDEMPTION
         -------------------------

         (a)   Notwithstanding the provisions of Section 3.1, the Debentures
               shall not be redeemable on or prior to October 1, 2004.
               Thereafter, the Debentures will not be redeemable unless the
               Corporation shall have filed with the Trustee, on the day that a
               notice of redemption of the Debentures is first given pursuant to
               Section 3.3, an Officers' Certificate certifying that the
               weighted average price per share for Common Shares on the TSX
               Venture Exchange (or if the Common Shares are not listed on the
               TSX Venture Exchange, on the Toronto Stock Exchange, or if the
               Common Shares are not listed on the Toronto Stock Exchange, on
               such stock exchange on which the Common Shares are listed as may
               be selected for such purpose by the directors or if the Common
               Shares are not so listed then on the over-the-counter market)
               during 20 consecutive trading days ended not more than five
               trading days preceding the date on which such notice of
               redemption is first given was at least 166 2/3% of the Conversion
               Price in effect on the date of the filing of such Officers'
               Certificate.

               The weighted average price shall be determined by dividing the
               aggregate sale price of all Common Shares sold on the said
               exchange or market, as the case may be, during the said 20
               consecutive trading days by the total number of Common Shares so
               sold.

         (b)   Notwithstanding the provisions of Section 3.1 and subsection
               3.2(a), the Debentures will not be redeemable unless the
               registration statement referred to in Section 5.10 with respect
               to the Common Shares issuable on conversion of the


                                      -14-



               Debentures has been declared effective and remains effective at
               the Date of Redemption.

3.3      NOTICE OF REDEMPTION
         --------------------

         Notice of intention to redeem any Debentures shall be given by or on
behalf of the Corporation to the Trustee and to each holder of such Debentures
by letter or circular sent through the ordinary mail, postage prepaid, addressed
to such holder or delivered by hand (or so mailed to certain holders and so
delivered to the other holders) at the holder's last address appearing upon one
of the registers hereinbefore mentioned and mailed not more than 60 days and not
less than 30 days prior to the date specified for redemption, provided that the
accidental omission to mail or deliver any such letter or circular or the
non-receipt of any such letter or circular or the non-receipt of any such letter
or circular by any such holder or holders shall not invalidate or otherwise
prejudicially affect the redemption of such Debentures.

         Every notice of redemption shall specify the redemption date and the
redemption price, the place or places of payment and shall state that if the
Debentures are not presented for redemption on such redemption date all interest
thereon shall cease from and after the said date.

         Every notice sent by post or delivered by hand as aforesaid shall be
deemed to have been given on the day on which it is posted or delivered, as the
case may be.

3.4      DEBENTURES DUE ON REDEMPTION DATES
         ----------------------------------

         Upon notice having been given as aforesaid, all the Debentures so
called for redemption shall thereupon be and become due and payable at the
redemption price (less any tax required by law to be deducted from accrued and
unpaid interest), on the redemption date specified in such notice, in the same
manner and with the same effect as if it were the date of maturity specified in
such Debentures, anything therein or herein to the contrary notwithstanding, and
from and after such redemption date, if the moneys necessary to redeem such
Debentures shall have been deposited as hereinafter provided and affidavits or
other proof satisfactory to the Trustee as to the giving of such notices shall
have been lodged with it, interest upon such Debentures shall cease to accrue
after said date.

         In case any question shall arise as to whether any notice has been
given as above provided and any such deposit made, such question shall be
decided by the Trustee whose decision shall be final and binding upon all
parties in interest.

3.5      DEPOSIT OF REDEMPTION MONEYS
         ----------------------------

         Upon Debentures having been called for redemption as hereinbefore
provided, the Corporation shall deposit with the Trustee or any paying agent to
the order of the Trustee, at least one business day before the redemption date
fixed in the notice of the redemption thereof, such sums as may be sufficient to
pay the redemption price of the Debentures (less any tax required


                                      -15-



to be deducted from accrued and unpaid interest) so to be redeemed together with
the estimated charges and expenses to be incurred in connection with such
redemption. From the sums so deposited the Trustee shall pay or cause to be paid
to the holders of such Debentures so called for redemption, upon surrender of
such Debentures, the principal and interest (less any tax required to be
deducted from accrued and unpaid interest) to which they are respectively
entitled on redemption.

3.6      FAILURE TO SURRENDER DEBENTURES CALLED FOR REDEMPTION
         -----------------------------------------------------

         In case the holder of such Debentures so called for redemption shall
within 30 days from the date fixed for redemption fail so to surrender any of
such holder's Debentures, or shall not within such time accept payment of the
redemption price payable in respect thereof or give such receipt therefor, if
any, as the Trustee may require, such redemption price (less any tax required to
be deducted from accrued and unpaid interest) shall be set aside in trust for
such holder, either in the deposit department of the Trustee or in some
chartered bank in Canada and such setting aside shall for all purposes be deemed
a payment to the Debentureholder of the sum so set aside, and to that extent
such Debentures shall thereafter not be considered as outstanding hereunder and
the Debentureholder shall have no right except to receive payment out of the
moneys so paid and deposited upon surrender and delivery up of his Debenture or
Debentures of the redemption price (less any tax required to be deducted from
accrued and unpaid interest) of such Debenture or Debentures, without further
interest thereon, subject always to the provisions of Section 8.3.

3.7      CANCELLATION AND DESTRUCTION OF DEBENTURES
         ------------------------------------------

         All Debentures so redeemed under this Article and all Debentures
purchased by the Corporation under this Article shall forthwith be delivered to
the Trustee and shall be cancelled by it and no Debentures shall be issued in
substitution therefor.

         All matured Debentures of which the Corporation may be able to regain
possession shall likewise be delivered to the Trustee and cancelled by it and no
Debentures shall be issued in substitution therefor.

3.8      SURRENDER OF DEBENTURES FOR CANCELLATION
         ----------------------------------------

         If the principal moneys due upon any Debenture issued hereunder shall
become payable by redemption or otherwise before the date of maturity thereof,
the person presenting such Debenture for payment must surrender the same for
cancellation, the Corporation nevertheless paying or causing to be paid the
interest accrued and unpaid thereon (computed on a per diem basis if the date
fixed for payment is not an interest due date).

3.9      PURCHASE OF DEBENTURES FOR CANCELLATION
         ---------------------------------------

         At any time when the Corporation is not in default hereunder, it may
purchase and surrender to the Trustee for cancellation (and no Debentures shall
be issued in substitution therefor) all or any of the Debentures by tender
available to all holders alike at any price.

         If, upon an invitation for tenders, more Debentures than the
Corporation is prepared to accept are tendered at the same lowest price, the
Debentures to be purchased by the Corporation will be selected by the Trustee,
in such manner as the Trustee may deem equitable, from the Debentures tendered
by each tendering Debentureholder who tendered at such lowest price. For this
purpose the Trustee may make, and from time to time amend, regulations with
respect to the manner in which Debentures may be so selected and regulations so
made shall be valid and


                                      -16-



binding upon all Debentureholders, notwithstanding the fact that, as a result
thereof, one or more of such Debentures become subject to purchase in part only.
The holder of a Debenture of which a part only is purchased, upon surrender of
such Debenture for payment, shall be entitled to receive, without expense to
such holder, one or more new Debentures for the unpurchased part so surrendered,
and the Trustee shall certify and deliver such new Debenture or Debentures upon
receipt of the Debenture so surrendered.

                                   ARTICLE 4
                            CONVERSION OF DEBENTURES
                            ------------------------

4.1      CONVERSION PRIVILEGE AND CONVERSION PRICE
         -----------------------------------------

         Upon and subject to the provisions and conditions of this Article, the
holder of each Debenture shall have the right, at his option, at any time prior
to the close of business on the earlier of September 29, 2005 or, if such
Debenture is previously called for redemption, the business day immediately
preceding the date fixed for redemption of such Debenture (such time and date in
this Article being referred to as the "TIME OF EXPIRY"), to convert the whole
or, in the case of a Debenture of a denomination in excess of $1,000, any part
which is $1,000 or an integral multiple thereof, of the principal amount of such
Debenture into fully paid and non-assessable Common Shares of the Corporation at
the Conversion Price in effect on the Date of Conversion (as defined in
subsection 4.3(b)).

         Subject to Section 4.4, the Conversion Price shall be $0.45 for each
Common Share to be issued upon the conversion of Debentures, being a conversion
rate of approximately 2,222.2 Common Shares for each $1,000 principal amount of
Debentures.

         Such right of conversion shall extend only to the maximum number of
whole Common Shares into which the aggregate principal amount of the Debenture
or Debentures surrendered for conversion at any one time by the holder thereof
may be converted in accordance with the foregoing provisions of this Section.
Fractional interests in Common Shares shall be adjusted for in the manner
provided in Section 4.5.

         "CLOSE OF BUSINESS" as used in this Article shall mean the normal
closing hour of the office of the Trustee referred to in subsection 4.3(a) at
which such conversion right is being exercised.

         Notice of the expiry of the conversion privileges of the Debentures
shall be given by or on behalf of the Corporation, not more than 60 days and not
less than 30 days prior to the date fixed for the Time of Expiry, in the manner
provided in Section 11.2.

         For greater certainty, only the principal amount of the Debentures
shall be convertible into Common Shares in accordance with the provisions of
this Article.

4.2      REVIVAL OF RIGHT TO CONVERT
         ---------------------------

         If payment of the redemption price or the purchase price of any
Debenture which has been called for redemption or tendered in acceptance of an
offer by the Corporation to purchase Debentures for cancellation is not made, in
the case of a redemption upon due surrender of such


                                      -17-



Debenture or in the case of a purchase on the date on which such purchase is
required to be made, as the case may be, then the right to convert such
Debenture shall revive and continue as if such Debenture had not been called for
redemption or tendered in acceptance of the Corporation's offer, respectively.

4.3      MANNER OF EXERCISE OF RIGHT TO CONVERT
         --------------------------------------

         (a)   The holder of a Debenture desiring to convert such Debenture in
               whole or in part into Common Shares shall surrender such
               Debenture to the Trustee at its principal office in the City of
               Vancouver, British Columbia together with the Conversion Form on
               the back of such Debenture or any other written notice in a form
               satisfactory to the Trustee, in either case duly executed by the
               holder or his executors or administrators or other legal
               representatives or his or their attorney duly appointed by an
               instrument in writing in form and executed in a manner
               satisfactory to the Trustee, exercising his right to convert such
               Debenture in accordance with the provisions of this Article.
               Thereupon such Debentureholder, and subject to payment of all
               applicable stamp or security transfer taxes or other governmental
               charges and compliance with all reasonable requirements of the
               Trustee, his nominee(s) or assignee(s), shall be entitled to be
               entered in the books of the Corporation as at the Date of
               Conversion (or such later date as is specified in subsection
               4.3(b)) as the holder of the number of Common Shares into which
               such Debenture is convertible in accordance with the provisions
               of this Article and, as soon as practicable thereafter, the
               Corporation shall, if requested, deliver to such Debentureholder
               or, subject as aforesaid, his nominee(s) or assignee(s), a
               certificate or certificates for such Common Shares and, if
               applicable, a cheque for any amount payable under Section 4.5.

         (b)   For the purposes of this Article, a Debenture shall be deemed to
               be surrendered for conversion on the date (herein called "DATE OF
               CONVERSION") on which it is so surrendered when the register of
               the Trustee is open and in accordance with the provisions of this
               Article and, in the case of a Debenture so surrendered by post or
               other means of transmission on the date on which it is received
               by the Trustee at its office specified in subsection (a) of this
               Section.

         (c)   Any part of a Debenture may be converted as provided in this
               Article and all references in this indenture to conversion of
               Debentures shall be deemed to include conversion of such parts.

         (d)   Upon a holder of any Debenture exercising his or her right of
               conversion in respect of only a part of a Debenture and
               surrendering such Debenture to the Trustee, the Trustee shall
               cancel the same and shall without charge forthwith certify and
               deliver to the holder a new Debenture or Debentures in an
               aggregate principal amount equal to the unconverted part of the
               principal amount of the Debenture so surrendered.

         (e)   The holder of a Debenture surrendered for conversion in
               accordance with this Section shall be entitled to receive accrued
               and unpaid interest in respect thereof


                                      -18-



               up to the Date of Conversion of such Debenture, and the Common
               Shares issued upon such conversion shall rank only in respect of
               dividends declared in favour of shareholders of record on and
               after the Date of Conversion, from which date they will for all
               purposes be and be deemed to be issued and outstanding as fully
               paid and non-assessable Common Shares.

4.4      ADJUSTMENT OF CONVERSION PRICE
         ------------------------------

         The Conversion Price in effect at any date shall be subject to
adjustment from time to time as follows:

         (a)   If and whenever at any time prior to the Time of Expiry the
               Corporation shall (i) subdivide or redivide the outstanding
               Common Shares into a greater number of shares, (ii) reduce,
               combine or consolidate the outstanding Common Shares into a
               smaller number of shares, or (iii) issue Common Shares of the
               Corporation to the holders of all or substantially all of the
               outstanding Common Shares by way of a stock dividend, the
               Conversion Price in effect on the effective date of such
               subdivision, redivision, reduction, combination or consolidation
               or on the record date for such issue of Common Shares by way of a
               stock dividend, as the case may be, shall in the case of the
               events referred to in (i) and (iii) above be decreased in
               proportion to the number of outstanding Common Shares resulting
               from such subdivision, redivision or dividend, or shall, in the
               case of the events referred to in (ii) above, be increased in
               proportion to the number of outstanding Common Shares resulting
               from such reduction, combination or consolidation. Such
               adjustment shall be made successively whenever any event referred
               to in this subsection (a) shall occur. Any such issue of Common
               Shares by way of a stock dividend shall be deemed to have been
               made on the record date for the stock dividend for the purpose of
               calculating the number of outstanding Common Shares under
               subsections (b), (c) and (g) of this Section 4.4.

         (b)   If and whenever at any time prior to the Time of Expiry the
               Corporation shall fix a record date for the issuance of rights,
               options or warrants to all or substantially all the holders of
               its outstanding Common Shares entitling them, for a period
               expiring not more than 45 days after such record date, to
               subscribe for or purchase Common Shares (or securities
               convertible into or exchangeable for Common Shares) at a price
               per Common Share (or having a conversion or exchange price per
               Common Share) less than 95% of the Current Market Price (as
               defined in subsection 4.4(d)) of a Common Share on such record
               date, the Conversion Price shall be adjusted immediately after
               such record date so that it shall equal the price determined by
               multiplying the Conversion Price in effect on such record date by
               a fraction, of which the numerator shall be the total number of
               Common Shares outstanding on such record date plus a number of
               Common Shares equal to the quotient obtained by dividing the
               aggregate price of the total number of additional Common Shares
               offered for subscription or purchase (or the aggregate conversion
               or exchange price of the convertible or exchangeable securities
               so offered) by such Current Market Price per Common Share, and of
               which the denominator shall be the total number of Common Shares
               outstanding on such record date plus


                                      -19-



               the total number of additional Common Shares offered for
               subscription or purchase (or into which the convertible or
               exchangeable securities so offered are convertible or
               exchangeable). Any Common Shares owned by or held for the account
               of the Corporation shall be deemed not to be outstanding for the
               purpose of any such computation. Such adjustment shall be made
               successively whenever such a record date is fixed. To the extent
               that any such rights, options or warrants are not so issued or
               any such rights, options or warrants are not exercised prior to
               the expiration thereof, the Conversion Price shall be re-adjusted
               to the Conversion Price which would then be in effect if such
               record date had not been fixed or to the Conversion Price which
               would then be in effect based upon the number of Common Shares
               (or securities convertible into or exchangeable for Common
               Shares) actually issued upon the exercise of such rights, options
               or warrants, as the case may be.

         (c)   If and whenever at any time prior to the Time of Expiry the
               Corporation shall fix a record date for the making of a
               distribution to all or substantially all the holders of its
               outstanding Common Shares of (i) shares of any class other than
               Common Shares or (ii) rights, options or warrants (excluding
               those exercisable for 45 days or less) or (iii) evidences of its
               indebtedness or (iv) assets then, in each such case, the
               Conversion Price shall be adjusted immediately after such record
               date so that it shall equal the price determined by multiplying
               the Conversion Price in effect on such record date by a fraction,
               of which the numerator shall be the total number of Common Shares
               outstanding on such record date multiplied by the Current Market
               Price per Common Share on such record date, less the fair market
               value (as determined by the board of directors at the time such
               distribution is authorized, which determination shall be
               conclusive) of such shares or rights, options or warrants or
               evidences of indebtedness or assets so distributed, and of which
               the denominator shall be the total number of Common Shares
               outstanding on such record date multiplied by such Current Market
               Price per Common Share. Any Common Shares owned by or held for
               the account of the Corporation shall be deemed not to be
               outstanding for the purpose of any such computation. Such
               adjustment shall be made successively whenever such a record date
               is fixed. To the extent that such distribution is not so made,
               the Conversion Price shall be readjusted to the Conversion Price
               which would then be in effect if such record date had not been
               fixed or to the Conversion Rate which would then be in effect
               based upon such shares or rights, options or warrants or
               evidences of indebtedness or assets actually distributed, as the
               case may be.

         (d)   For the purpose of any computation under subsections (b) or (c)
               of this Section, the "CURRENT MARKET PRICE" per Common Share at
               any date shall be the weighted average price per share for Common
               Shares for the 20 consecutive trading days ending three trading
               days before such date on the TSX Venture Exchange, or, if the
               Common Shares are not listed thereon, on the Toronto Stock
               Exchange, or if the Common Shares are not listed on the Toronto
               Stock Exchange, on such stock exchange on which the Common Shares
               are listed as may be selected for such purpose by the directors
               or, if the Common Shares are not listed on any stock exchange,
               then on the over-the-counter market. The


                                      -20-



               weighted average price shall be determined by dividing the
               aggregate sale price of all Common Shares sold on the said
               exchange or market, as the case may be, during the said 20
               consecutive trading days by the total number of Common Shares so
               sold.

         (e)   In the case of any reclassification or change (other than a
               change resulting only from consolidation or subdivision) of the
               Common Shares or in case of any amalgamation, consolidation,
               arrangement, reorganization or merger of the Corporation with or
               into any other corporation, or in the case of any sale of the
               properties and assets of the Corporation as or substantially as
               an entirety to any other corporation or other person, or in the
               case of a liquidation, dissolution or winding-up of the
               Corporation, the Conversion Price shall be adjusted so that each
               Debenture shall, after such reclassification, change,
               amalgamation, consolidation, arrangement, reorganization, merger,
               sale, liquidation, dissolution or winding-up, be exercisable for
               the number of shares or the number, kind or amount of other
               securities or property of the Corporation, or such continuing,
               successor or purchaser person, as the case may be, which the
               holder thereof would have been entitled to receive as a result of
               such reclassification, change, amalgamation, consolidation,
               arrangement, reorganization, merger, sale, liquidation,
               dissolution or winding-up, if on the effective date thereof the
               holder had been the holder of the number of Common Shares into
               which the Debenture was convertible prior to the effective date
               of such reclassification, change, amalgamation, consolidation,
               arrangement, reorganization, merger, sale, liquidation,
               dissolution or winding-up. No such reclassification, change,
               amalgamation, consolidation, arrangement, reorganization, merger,
               sale, liquidation, dissolution or winding-up shall be carried
               into effect unless, in the opinion of the board of directors, all
               necessary steps shall have been taken to ensure that the holders
               shall thereafter be entitled to receive such number of shares or
               other securities or property of the Corporation, or such
               continuing, successor or purchasing person, as the case may be,
               subject to adjustment thereafter in accordance with provisions
               similar, as nearly as may be, to those contained in this Section
               4.4. If determined appropriate by the board of directors to give
               effect to or to evidence the provisions of this Section 4.4, the
               Corporation, or such continuing, successor or purchasing person,
               as the case may be, shall, prior to or contemporaneously with any
               such reclassification, change, amalgamation, consolidation,
               arrangement, reorganization, merger, sale, liquidation,
               dissolution or winding-up, enter into an indenture which shall
               provide, to the extent possible, for the application of the
               provisions set forth in this indenture with respect to the rights
               and interests thereafter of the holder of Debentures to the end
               that the provisions set forth in this indenture shall thereafter
               correspondingly be made applicable, as nearly as may reasonably
               be, with respect to any shares or other securities or property to
               which a holder of Debentures is entitled on the exercise of its
               conversion rights thereafter. Any indenture entered into between
               the Corporation and the Trustee pursuant to the provisions of
               this Section 4.4 shall be a supplemental indenture entered into
               pursuant to the provisions of Article 13. Any indenture entered
               into between the Corporation, any successor to the Corporation or
               such purchasing corporation or other person


                                      -21-



               and the Trustee shall provide for adjustments which shall be as
               nearly equivalent as may be practicable to the adjustments
               provided in this Section 4.4 and which shall apply to successive
               reclassifications, changes, amalgamations, consolidations,
               arrangements, reorganizations, mergers, sales, liquidations,
               dissolutions or windings-up.

         (f)   In any case in which this Section 4.4 shall require that an
               adjustment shall become effective immediately after a record date
               for an event referred to herein, the Corporation may defer, until
               the occurrence of such event, issuing to the holder of any
               Debenture converted after such record date and before the
               occurrence of such event the additional Common Shares issuable
               upon such conversion by reason of the adjustment required by such
               event before giving effect to such adjustment; provided, however,
               that the Corporation shall deliver to such holder an appropriate
               instrument evidencing such holder's right to receive such
               additional Common Shares upon the occurrence of the event
               requiring such adjustment and the right to receive any
               distributions made on such additional Common Shares declared in
               favour of holders of record of Common Shares on and after the
               Date of Conversion or such later date as such holder would, but
               for the provisions of this subsection (f), have become the holder
               of record of such additional Common Shares pursuant to subsection
               4.3(b).

         (g)   If and whenever at any time prior to the Time of Expiry the
               Corporation shall issue Common Shares (other than pursuant to
               options outstanding on the date hereof), or rights, options or
               warrants entitling the holder thereof to subscribe for or
               purchase Common Shares, or securities convertible into or
               exchangeable for Common Shares, to any person at a price per
               Common Share (or a subscription, purchase, conversion or exchange
               price per Common Share) less than the then Conversion Price, the
               Conversion Price shall be adjusted immediately after the date of
               such issue so that it shall equal the price determined by
               multiplying the Conversion Price in effect on such date of issue
               by a fraction, of which the numerator shall be the aggregate of
               the total number of Common Shares outstanding on such date of
               issue multiplied by the Conversion Price on such date of issue
               plus the total number of additional Common Shares issued or
               issuable under the rights, options, warrants or convertible or
               exchangeable securities multiplied by the issue, subscription,
               purchase, conversion or exchange price of such additional Common
               Shares, and of which the denominator shall be the aggregate of
               the total number of Common Shares outstanding on such date of
               issue plus the total number of additional Common Shares issued or
               issuable under the rights, options, warrants or convertible or
               exchangeable securities multiplied by the Conversion Price on
               such date of issue. If the Conversion Price is adjusted pursuant
               to this subsection 4.4(g) as a result of an issue of securities,
               then subsections 4.4(b) and (c), if applicable, would not be
               applied to further adjust the Conversion Price in respect of such
               issue of securities.

         (h)   The adjustments provided for in this Section 4.4 are cumulative
               and shall apply to successive subdivisions, redivisions,
               reductions, combinations, consolidations, distributions, issues
               or other events resulting in any adjustment under the


                                      -22-



               provisions of this Section, provided that, notwithstanding any
               other provision of this Section, no adjustment of the Conversion
               Price shall be required unless such adjustment would require an
               increase or decrease of at least 1% in the Conversion Price then
               in effect; provided however, that any adjustments which by reason
               of this subsection (h) are not required to be made shall be
               carried forward and taken into account in any subsequent
               adjustment.

         (i)   No adjustment of the Conversion Price shall be made in respect of
               any event described in subsections (a)(iii), (b) or (c) of this
               Section 4.4 if the holders of the Debentures are allowed to
               participate on substantially the same terms as though they had
               converted their Debentures prior to the applicable record date or
               effective date. A decision by the directors of the Corporation as
               to whether such participation is on substantially the same terms
               shall be final and conclusive.

         (j)   In the event of any question arising with respect to the
               adjustments provided in this Section 4.4, such question shall be
               conclusively determined by a firm of chartered accountants
               appointed by the Corporation and acceptable to the Trustee (who
               may be the Auditors of the Corporation); such accountants shall
               have access to all necessary records of the Corporation and such
               determination shall be binding upon the Corporation, the Trustee,
               and the Debentureholders.

         (k)   If the Corporation shall take any action affecting the Common
               Shares other than action described in this Section 4.4, which in
               the opinion of the board of directors would materially affect the
               rights of Debentureholders, the Conversion Price shall be
               adjusted in such manner and at such time, by action of the board
               of directors as the board of directors in their sole discretion
               may determine to be equitable in the circumstances. Failure of
               the directors to make such an adjustment shall be conclusive
               evidence that they have determined that it is equitable to make
               no adjustment in the circumstances.

4.5      NO REQUIREMENT TO ISSUE FRACTIONAL SHARES
         -----------------------------------------

         The Corporation shall not be required to issue fractional Common Shares
upon the conversion of Debentures pursuant to this Article. If more than one
Debenture shall be surrendered for conversion at one time by the same holder,
the number of whole Common Shares issuable upon conversion thereof shall be
computed on the basis of the aggregate principal amount of such Debentures to be
converted. If any fractional interest in a Common Share would, except for the
provisions of this Section, be deliverable upon the conversion of any principal
amount of Debentures, the Corporation shall, in lieu of delivering any
certificate of such fractional interest, satisfy such fractional interest by
paying to the holder of such surrendered Debenture an amount in lawful money of
the United States of America equal (computed to the nearest cent) to the
appropriate fraction of the value (being the last reported sale price or, if
none, the mean between the closing bid and ask quotations on the TSX Venture
Exchange, or, if the Common Shares are not listed on the TSX Venture Exchange,
on the Toronto Stock Exchange, or if the Common Shares are not listed on the
Toronto Stock Exchange, on such stock exchange on which the Common Shares are
listed, as may be selected for such purpose by the directors or, if the Common
Shares are not listed on any stock exchange, a value determined by the
directors)


                                      -23-



of a Common Share on the business day next preceding the Date of Conversion;
provided that if the value of the fractional interest determined as aforesaid is
less than $10.00, such fractional interest will be cancelled with no
compensation paid in respect thereof.

4.6      CORPORATION TO RESERVE SHARES
         -----------------------------

         The Corporation covenants with the Trustee that it will at all times
reserve and keep available out of its authorized Common Shares, solely for the
purpose of issue upon conversion of Debentures as in this Article provided, such
number of Common Shares as shall then be issuable upon the conversion of all
outstanding Debentures. The Corporation covenants with the Trustee that all
Common Shares which shall be so issuable shall, when issued, be duly and validly
issued as fully paid and non-assessable.

4.7      TAXES AND CHARGES ON CONVERSION
         -------------------------------

         The Corporation will from time to time promptly pay or make provision
satisfactory to the Trustee for the payment of any and all taxes and charges
which may be imposed by the laws of Canada or any province thereof (except
income tax, if any) which shall be payable with respect to the issuance or
delivery to the holders of Debentures, upon the exercise of their right to
conversion, of Common Shares of the Corporation pursuant to the terms of the
Debentures and of this indenture.

4.8      CANCELLATION OF CONVERTED DEBENTURES
         ------------------------------------

         All Debentures converted in whole or in part under the provisions of
this Article shall be forthwith delivered to and cancelled by the Trustee and,
subject to the provisions of Section 4.3(d), no Debenture shall be issued in
substitution therefor.

4.9      LEGENDING OF SHARE CERTIFICATES
         -------------------------------

         The share certificates representing Common Shares issued under this
Article shall have the following legends affixed thereto:

         (a)   for any Common Shares issued on or before the date which is four
               months and one day after the date of issue of the Debentures
               under which the Common Shares are issued:

                     "UNLESS PERMITTED UNDER CANADIAN SECURITIES LEGISLATION,
                     THE HOLDER OF THE SECURITIES SHALL NOT TRADE THE SECURITIES
                     BEFORE [FOUR MONTHS AND ONE DAY AFTER THE DATE OF ISSUE OF
                     THE DEBENTURES UNDER WHICH THE COMMON SHARES ARE ISSUED]."

               and

                     "WITHOUT THE PRIOR WRITTEN APPROVAL OF THE TSX VENTURE
                     EXCHANGE (THE "EXCHANGE") AND COMPLIANCE WITH ALL
                     APPLICABLE SECURITIES LEGISLATION, THE SECURITIES
                     REPRESENTED BY THIS CERTIFICATE MAY NOT


                                      -24-



                     BE SOLD, TRANSFERRED, HYPOTHECATED OR OTHERWISE TRADED ON
                     OR THROUGH THE FACILITIES OF THE EXCHANGE OR OTHERWISE IN
                     CANADA OR TO OR FOR THE BENEFIT OF A CANADIAN RESIDENT
                     BEFORE [FOUR MONTHS AND ONE DAY AFTER THE DATE OF ISSUE OF
                     THE DEBENTURES UNDER WHICH THE COMMON SHARES ARE ISSUED]."

         (b)   for any Common Shares issued before a registration statement with
               respect to the issue of Common Shares pursuant to the Debentures
               is declared effective by the United States Securities and
               Exchange Commission:

                     "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
                     REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933,
                     AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAW. NO
                     INTEREST THEREIN MAY BE SOLD, DISTRIBUTED, ASSIGNED,
                     OFFERED, PLEDGED OR OTHERWISE TRANSFERRED OR DISPOSED OF
                     WITHOUT (A) AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH
                     ACT AND ANY OTHER APPLICABLE UNITED STATES STATE OR FEDERAL
                     SECURITIES LAWS COVERING ANY SUCH TRANSACTION OR (B) AN
                     EXEMPTION FROM REGISTRATION (BASED ON RECEIPT BY THE
                     CORPORATION OF AN ACCEPTABLE LEGAL OPINION STATING THAT
                     SUCH TRANSACTION IS EXEMPT FROM REGISTRATION, IF SO
                     REQUESTED BY THE CORPORATION) OR (C) THE CORPORATION
                     OTHERWISE SATISFYING ITSELF THAT SUCH TRANSACTION IS EXEMPT
                     FROM REGISTRATION."

4.10     CERTIFICATE AS TO ADJUSTMENT
         ----------------------------

         The Corporation shall from time to time immediately after the
occurrence of any event which requires an adjustment or readjustment as provided
in Section 4.4, deliver an Officers' Certificate to the Trustee specifying the
nature of the event requiring the same and the amount of the adjustment
necessitated hereby and setting forth in reasonable detail the method of
calculation and the facts upon which such calculation is based, which Officers'
Certificate and the amount of the adjustment specified therein shall be verified
by an opinion of a firm of chartered accountants appointed by the Corporation
and acceptable to the Trustee (who may be the Auditors of the Corporation) and,
when approved by the Trustee, shall be conclusive and binding on all parties in
interest. When so approved, the Corporation shall, except in respect of any
subdivision, redivision, reduction, combination or consolidation of the Common
Shares, forthwith give notice to the Debentureholders in the manner provided in
Section 11.2 specifying the event requiring such adjustment or readjustment and
the results thereof, including the resulting Conversion Price; provided that, if
the Corporation has given notice under Section 4.11 covering all the relevant
facts in respect of such event and if the Trustee approves, no such notice need
be given under this Section 4.10.


                                      -25-



4.11     NOTICE OF SPECIAL MATTERS
         -------------------------

         The Corporation covenants with the Trustee that so long as any
Debenture remains outstanding, it will give notice to the Trustee, and to the
Debentureholders in the manner provided in Section 11.2, of its intention to fix
a record date for any event referred to in Sections 4.4(a), (b) or (c) (other
than the subdivision, redivision, reduction, combination or consolidation of its
Common Shares) which may give rise to an adjustment in the Conversion Price,
and, in each case, such notice shall specify the particulars of such event and
the record date and the effective date for such event; provided that the
Corporation shall only be required to specify in such notice such particulars of
such event as shall have been fixed and determined on the date on which such
notice is given. Such notice shall be given not less than 10 days in each case
prior to such applicable record date.

4.12     PROTECTION OF TRUSTEE
         ---------------------

         Subject to Section 12.3, the Trustee:

         (a)   shall not at any time be under any duty or responsibility to any
               Debentureholder to determine whether any facts exist which may
               require any adjustment in the Conversion Price, or with respect
               to the nature or extent of any such adjustment when made, or with
               respect to the method employed in making the same;

         (b)   shall not be accountable with respect to the validity or value
               (or the kind or amount) of any Common Shares or of any shares or
               other securities or property which may at any time be issued or
               delivered upon the conversion of any Debenture; and

         (c)   shall not be responsible for any failure of the Corporation to
               make any cash payment or to issue, transfer or deliver Common
               Shares or share certificates upon the surrender of any Debenture
               for the purpose of conversion, or to comply with any of the
               covenants contained in this Article.

                                   ARTICLE 5
                          COVENANTS OF THE CORPORATION
                          ----------------------------

         So long as any Debenture remains outstanding, the Corporation hereby
covenants and agrees, with the Trustee for the benefit of the Trustee and the
Debentureholders as follows:

5.1      TO PAY PRINCIPAL AND INTEREST
         -----------------------------

         The Corporation will duly and punctually pay or cause to be paid to
every Debentureholder the principal of and interest accrued on the Debentures of
which such Debentureholder is the holder, on the dates, at the places, and in
the manner provided herein and in the Debentures.


                                      -26-



5.2      NEGATIVE COVENANTS
         ------------------

         (a)   Except with the prior approval of the Debentureholders by
               extraordinary resolution, the Corporation will not incur any
               Indebtedness; provided that, subject to the other provisions of
               this indenture, the Corporation shall be entitled to incur
               unsecured Indebtedness of up to $2,000,000 aggregate principal
               amount.

         (b)   The Corporation will not create, nor permit to exist, any
               Security Interest on any of its assets or property; provided that
               the provisions of this subsection 5.2(b) shall not apply to or
               operate to prevent the creation of:

               (i)   Security Interests, not related to Indebtedness, incurred
                     or arising by operation of law or incidental to the
                     ownership and operation of property or assets, so long as
                     the Corporation is not in default of the secured obligation
                     or liability; or

               (ii)  a Security Interest on any specific property in favour of a
                     government or any political subdivision, department agency
                     or instrumentality thereof to secure the performance of any
                     covenant or obligation to or in favour of or entered into
                     at the request of any such authorities where such Security
                     Interest is required pursuant to any contract, statute,
                     order or regulation, so long as the Corporation is not in
                     default of the covenant or obligation;

               and provided further that it is understood that the foregoing
               proviso shall not constitute in any manner a subordination of the
               Security to such permitted Security Interests.

5.3      TO CARRY ON BUSINESS
         --------------------

         The Corporation will itself or through its Subsidiaries carry on its
business in accordance with ordinary industry practice and, subject to the other
provisions of this indenture, will do or cause to be done all things necessary
to preserve and keep in full force and effect its corporate existence, and will
not consolidate, amalgamate or merge with any other corporation or transfer its
undertaking and property as an entirety or substantially as an entirety to any
other person, except in compliance with the provisions of Article 8; provided,
however, that nothing herein contained shall prevent the Corporation from
ceasing to carry on any portion of its business (but not substantially all of
its business) or from ceasing to operate any premises or property if it shall be
advisable and in the best interests of the Corporation.

5.4      TO PAY TRUSTEE'S REMUNERATION
         -----------------------------

         The Corporation will pay the Trustee reasonable remuneration for its
services as Trustee hereunder and will repay to the Trustee on demand all moneys
which shall have been paid by the Trustee in and about the execution of the
trusts hereby created, with interest, if demanded by the Trustee, from 15 days
following the date of receipt by the Corporation of the invoice from the Trustee
to the Corporation in respect of such expenditure until repayment, and such
moneys and the interest thereon, including the Trustee's remuneration, shall be
payable out of any funds coming into the possession of the Trustee in priority
to any of the Debentures or interest thereon.


                                      -27-



The said remuneration shall continue payable until the trusts hereof be finally
wound up and whether or not the trusts of this indenture shall be in course of
administration by or under the direction of a court of competent jurisdiction.

5.5      TO PROVIDE FINANCIAL STATEMENTS
         -------------------------------

         The Corporation will furnish to the Trustee, and will send to the
Debentureholders upon receipt of written request for same, a copy of all
financial statements, and the report, if any, of the Corporation's Auditors
thereon, which is furnished to holders of Common Shares. The Trustee shall have
no obligation to review or analyze any such information or to evaluate the
performance or condition of the Corporation.

5.6      NOT TO EXTEND TIME FOR PAYMENT OF INTEREST
         ------------------------------------------

         In order to prevent any accumulation after maturity of unpaid interest,
the Corporation will not directly or indirectly extend or assent to the
extension of time for payment of any interest upon any Debentures and it will
not, directly or indirectly, be or become a party to or approve any such
arrangement by purchasing or funding any interest on Debentures or in any other
manner. In case the time for the payment of any such interest shall be so
extended, whether or not such extension is by or with the consent of the
Corporation, notwithstanding anything herein or in the Debentures contained,
such interest shall not be entitled in case of default hereunder to the benefits
of this indenture except subject to the prior payment in full of all principal
and interest on Debentures the payment of which has not been so extended.

5.7      TRUSTEE MAY PERFORM COVENANTS
         -----------------------------

         If the Corporation shall fail to perform any covenant on its part
herein contained, the Trustee may in its discretion, but (subject to Section
7.2) need not, notify the Debentureholders of such failure or itself may perform
any of said covenants capable of being performed by it and, if any such covenant
requires the payment or expenditure of money, it may make such payment or
expenditure with its own funds, or with money borrowed by or advanced to it for
such purposes, but shall be under no obligation so to do; and all sums so
expended or advanced shall be repayable by the Corporation in the manner
provided in Section 5.4, but no such performance or payment shall be deemed to
relieve the Corporation from any default hereunder.

5.8      STOCK EXCHANGE LISTING
         ----------------------

         The Corporation shall take all such steps and actions and do all such
things as may be required to maintain the listing and posting for trading of the
Common Shares of the Corporation on a recognized Canadian stock exchange.

5.9      SECURITIES LAWS COMPLIANCE
         --------------------------

         (a)   The Corporation shall remain a reporting issuer, and not in
               default of any filing or other requirement, under the securities
               laws of British Columbia, Alberta and Ontario.


                                      -28-



         (b)   The Corporation shall remain in compliance with all required
               filings under and other requirements of the U.S. Exchange Act and
               the U.S. Securities Act.

5.10     U.S. REGISTRATION
         -----------------

         The Corporation agrees as follows:

         (a)   The Corporation agrees that as promptly as practicable after the
               Closing it will, at its expense, prepare and file under the U.S.
               Securities Act one or more registration statement(s) with respect
               to the Common Shares issuable on conversion of the Debentures,
               (herein such Common Shares issuable on conversion of the
               Debentures are referred to as the "REGISTRABLE Securities") in
               accordance with the then applicable law and regulations and
               practices of the U.S. Securities and Exchange Commission (the
               "COMMISSION"). The Corporation will use its best efforts to cause
               such registration statement(s) to be declared effective as
               promptly as possible, and shall use its best efforts to maintain
               the effectiveness of the registration statement(s) under the U.S.
               Securities Act for a period of not less than two years following
               the date of Closing with respect to the shares issuable on
               conversion of the Debentures, plus a number of days equal to the
               number of days, if any, during which the right of holders of
               Registrable Securities to offer and sell such Registrable
               Securities shall have been suspended.

         (b)   Any Debentureholder whose securities shall be included in the
               Corporation's registration(s) under the U.S. Securities Act
               pursuant to subsection (a) of this Paragraph 5.10 shall furnish
               to the Corporation such information regarding his holdings of
               Registrable Securities to be registered and the proposed manner
               of distribution thereof as the Corporation may request in writing
               and as shall be required in connection with any registration,
               qualification or compliance referred to in subsection (a) of this
               Paragraph 5.10 and shall otherwise co-operate with the
               Corporation in connection with such registration, qualification
               or compliance. The Corporation, at its expense, will furnish to
               holders of Registrable Securities such number of prospectuses,
               offering circulars or other documents incident to any
               registration, qualification or compliance referred to in this
               Paragraph 5.10 as such holders from time to time reasonably may
               request, and will indemnify and defend each such holder and each
               underwriter of Registrable Securities being sold by any such
               holder (and any person who controls such holder or underwriter
               within the meaning of Section 15 of the Act) against all claims,
               losses, damages, liabilities and expenses resulting from any
               untrue statement or alleged untrue statement of a material fact
               contained therein (or in any related registration statement,
               notification or the like) or from any omission or alleged
               omission to state therein a material fact required to be stated
               therein or necessary to make the statements therein not
               misleading, except insofar as the same may have been based upon
               information furnished in writing to the Corporation by such
               holder or underwriter expressly for use therein, and with respect
               to such information furnished to the Corporation, such holder
               will indemnify and defend the Corporation against all claims,
               losses, damages, liabilities and expenses resulting from any
               untrue statement or alleged untrue statement of a material fact
               contained


                                      -29-



               therein or any omission or alleged omission to state a material
               fact required to be stated or necessary to make the information
               not misleading.

         (c)   The Corporation shall, at its expense, (i) notify the Trustee and
               the Debentureholders promptly after it shall receive notice
               thereof, of the time when the registration statement(s) has(have)
               become effective or any supplement to any prospectus forming a
               part of the registration statement(s) has been filed, (ii) notify
               the Trustee and the Debentureholders promptly of any request by
               the Commission for the amending or supplementing of the
               registration statement(s) or prospectus(es) or additional
               information, (iii) prepare and file with the Commission, promptly
               upon request by a holder of Registrable Securities, any amendment
               or supplement to the registration statement(s) which, in the
               opinion of counsel for the holder and counsel for the
               Corporation, may be necessary or available in connection with the
               distribution of the Registrable Securities, (iv) prepare and file
               with the Commission, and promptly notify the Trustee, the
               Debentureholders and holders of Registrable Securities of, any
               amendment or supplement to the registration statement(s) or
               related prospectus(es) as may be necessary to correct any
               statement or omission, if at any time when a prospectus relating
               to the Registrable Securities is required to be delivered under
               the U.S. Securities Act, any event shall have occurred as a
               result of which any such prospectus would include an untrue
               statement of a material fact or omit to state any material fact
               necessary to make the statements therein not misleading; (v) in
               case the holder of Registrable Securities is required to deliver
               a prospectus, at a time when the prospectus then in effect may no
               longer be used under the U.S. Securities Act, prepare promptly
               upon request such amendment or amendments to the registration
               statement(s) and such prospectus or prospectuses as may be
               necessary to permit compliance with the requirements of Section
               10 of the U.S. Securities Act; (vi) advise the Trustee, the
               Debentureholders and holders of Registrable Securities promptly
               after it shall receive notice or obtain knowledge thereof of the
               issuance of any stop order by the Commission suspending the
               effectiveness of the registration statement(s) or the initiation
               or threatening of any proceeding for that purpose and promptly
               use its best efforts to prevent the issuance of any stop order or
               to obtain its withdrawal if such stop order should be issued;
               (vii) furnish to the Trustee, the Debentureholders and holders of
               Registrable Securities as soon as available copies of the
               registration statement(s) and each preliminary or final
               prospectus, or supplement required to be prepared, pursuant to
               this Paragraph 5.10, all in such quantities as may from time to
               time be reasonably requested; and (viii) if any of the
               Corporation's Common Shares are then listed on any securities
               exchange, the Corporation will cause all shares covered by the
               registration statement(s) to be listed on such exchange(s).
               Notwithstanding anything herein contained, the Corporation shall
               not be obligated to pay any underwriting or brokers' discounts or
               commissions applicable to the holder's Registrable Securities or
               fees or disbursements of counsel to the selling shareholders.

         (d)   The rights to registration of the Registrable Securities may be
               transferred or assigned by the holder of Registrable Securities
               to any transferee or assignee of


                                      -30-



               the Registrable Securities subject to such transferee or assignee
               agreeing to be bound by the terms of this Section 5.10.

5.11     NOT TO PAY DIVIDENDS AND MAKE CAPITAL DISTRIBUTIONS
         ---------------------------------------------------

         The Corporation shall not, without the prior approval of the holders of
Debentures:

         (a)   declare or pay any dividends (other than stock dividends in
               Common Shares of the Corporation) on any shares of the
               Corporation; or

         (b)   call for redemption or purchase for cancellation or make any
               capital distribution with respect to any shares of the
               Corporation.

5.12     TO GIVE NOTICE OF DEFAULT
         -------------------------

         The Corporation shall notify the Trustee immediately upon the
occurrence of any Event of Default hereunder.

5.13     KEEPING OF BOOKS
         ----------------

         The Corporation will keep or cause to be kept proper books of record
and account, in which full and correct entries shall be made of all financial
transactions and the assets and business of the Corporation in accordance with
generally accepted accounting principles.

5.14     ANNUAL CERTIFICATE OF COMPLIANCE
         --------------------------------

         The Corporation shall deliver to the Trustee, within 120 days after the
end of each calendar year, an Officer's Certificate certifying that after
reasonable investigation and inquiry, the Corporation has complied with all
covenants, conditions or other requirements contained in this indenture, the
non-compliance with which could, with the giving of notice, lapse of time or
otherwise, constitute an Event of Default hereunder, or if such is not the case,
setting forth with reasonable particulars the circumstances of any failure to
comply and steps taken or proposed to be taken to eliminate such circumstances
and remedy such Event of Default, as the case may be.

5.15     COLLATERAL AGENCY AGREEMENT AND COLLATERAL DOCUMENTS
         ----------------------------------------------------

         The Corporation shall promptly fulfill and satisfy all of its covenants
and obligations under the Collateral Agency Agreement and the Collateral
Documents.

                                   ARTICLE 6
                              COLLATERAL DOCUMENTS
                              --------------------

6.1      SECURITY
         --------

         To secure the due and punctual payment of principal and interest on the
Debentures and all other amounts owing, outstanding and payable hereunder and
under the Debentures, the Corporation shall execute and deliver the Collateral
Documents (collectively, and as added to or amended from time to time pursuant
to the provisions of this indenture, the "SECURITY") to the


                                      -31-



Collateral Agent or the Trustee, as directed by the Trustee, as and by way of
continuing collateral security, and shall keep and maintain the same in full
force and effect for so long as any amounts are owing hereunder, under the
Debentures, under the Collateral Agency Agreement or under the Security.

         Any or all of the Security may be held by the Trustee directly, or by
the Collateral Agent on behalf of the Trustee, and the Trustee is hereby
authorized to enter into the Collateral Agency Agreement with the Collateral
Agent to give effect hereto. The Corporation shall execute and deliver to the
Trustee and the Collateral Agent an acknowledgement and consent in respect of
the Collateral Agency Agreement in form and substance acceptable to the Trustee.
Any power or authority conferred herein to the Trustee in respect of Security
held by the Collateral Agent may be exercised by the Collateral Agent at the
direction and under the supervision of the Trustee.

6.2      COVENANT TO PROVIDE ADDITIONAL FIXED CHARGES
         --------------------------------------------

         Upon written request by the Trustee, which request may be made at any
time and from time to time, the Corporation shall execute and deliver in favour
of the Trustee or the Collateral Agent, as directed by the Trustee, fixed and
specific charges over any assets or property of the Corporation acquired after
the dates of the Collateral Documents, all of which shall form part of the
Security. All of the foregoing shall be prepared (in form and substance
satisfactory to the Trustee and the Collateral Agent), executed, delivered and
registered at the expense of the Corporation.

6.3      REGISTRATION AND PERFECTION
         ---------------------------

         The Corporation shall register and perfect the Security in all
jurisdictions in which any property forming part of the collateral subject
thereto is situate. The Corporation shall further take such action and execute
and deliver to the Trustee and the Collateral Agent such agreements,
conveyances, deeds, financing statements, UCC filings and other documents and
instruments as the Trustee or the Collateral Agent may request for the purpose
of establishing, perfecting, preserving and protecting the Security, in each
case satisfactory in form and substance to the Trustee and the Collateral Agent.

6.4      LEGAL OPINIONS
         --------------

         The Corporation shall cause favourable legal opinions (satisfactory in
form and substance to the Trustee and the Collateral Agent) in respect of the
Security and the Security Interests created thereby, and the ranking thereof, to
be delivered to the Trustee and the Collateral Agent in respect of the validity
and enforceability thereof, and the registration and perfection of the Security
Interests created thereby.

6.5      CONTINUING SECURITY
         -------------------

         Each item or part of the Security shall for all purposes be treated as
a separate and continuing collateral security and shall be deemed to have been
given in addition to and not in place of any other item or part of the Security
or any other security now held or hereafter acquired by the Trustee, the
Collateral Agent or any Debentureholder. No item or part of the Security shall
be merged or be deemed to have been merged in or by this indenture, the


                                      -32-



Debentures, the Collateral Agency Agreement or any documents, instruments or
acknowledgements delivered hereunder, any simple contract debt or any judgment
and any realization of or steps taken under or pursuant to any security,
instrument or agreement shall be independent of and not create a merger with any
other right available to any the Trustee, the Collateral Agent or any
Debentureholder under any security, instruments or agreements held by the
Trustee, the Collateral Agent or such Debentureholder or at law or in equity.

6.6      DEALING WITH SECURITY
         ---------------------

         The Trustee may grant extensions of time or other indulgences, take and
give securities (including the Security or any part thereof), accept
compositions, grant releases and discharges and otherwise deal with the
Corporation and other parties and with securities (including the Security and
each part thereof) as the Trustee may, based on the advice of Counsel, see fit,
provided the Trustee is of the opinion, based on the advice of Counsel, that any
such action is not prejudicial to the interests of the Debentureholders.

6.7      EFFECTIVENESS
         -------------

         The Security hereby contemplated or required to be created shall be
effective, and the undertakings as to the Security herein or in any document
hereunder shall be continuing, whether the moneys hereby or thereby secured or
any part thereof shall be advanced before or after or at the same time as the
creation of any such Security or before or after or upon the date of execution
of any amendments to this indenture.

6.8      CONFLICT
         --------

         In the event of any conflict between the terms of this indenture and
the Security, the provisions of this indenture shall prevail to the extent
necessary to remove such conflict.

6.9      PERMITTED ENCUMBRANCES AND INDEBTEDNESS.
         ----------------------------------------

         None of:

         (a)   the fact that the Corporation is permitted to create, assume or
               suffer to exist any permitted Security Interest or permitted
               Indebtedness;

         (b)   the fact that any representation, warranty or covenant herein may
               make an exception for the existence of any permitted Security
               Interest or permitted Indebtedness; or

         (c)   the fact that the Security Interests created pursuant to the
               Security may be stated to be subject to, or are not required to
               rank in priority to, permitted Security Interests;

shall, in and of themselves, in any manner, nor in any cause or proceeding,
directly or indirectly, be taken to constitute a subordination of any Security
Interest created pursuant to the Security to any permitted Security Interests or
to any other Security Interest or other obligation whatsoever, or that the
Indebtedness under this indenture, the Debentures or the Security is in any way


                                      -33-



subordinate or junior in right of payment to any permitted Indebtedness, it
being the intention of the parties that all Security Interests created pursuant
to the Security shall at all times rank as first priority Security Interests in
priority to permitted Security Interests and all other Security Interests or
other obligations whatsoever.

6.10     COMPOSITE MORTGAGE
         ------------------

         Each item of the Security is a composite mortgage and security
agreement covering the property of the Corporation located in the various states
of the United States of America and elsewhere and each item of the Security
shall be a separate mortgage and security agreement enforceable against the
Corporation without regard to the application of the Security to portions of the
property of the Corporation located in other jurisdictions. All provisions
thereof shall be applicable separately to the portions of the property located
in each separate jurisdiction with the same effect as if a separate mortgage and
security agreement with respect thereto had been executed and delivered. Upon
request of the Trustee, the Corporation shall prepare at its expense a separate
mortgage and security agreement covering the portion of the property located in
any such jurisdiction or jurisdictions, such separate mortgage and security
agreement to be substantially in the form of the Security except for such
modifications as shall be required by the fact that such mortgage and security
agreement relates only to the property of the Corporation located in such
jurisdiction or jurisdictions or as may be required by the Trustee in connection
therewith. The Corporation hereby agrees to execute and deliver to the Trustee
and, if directed by the Trustee, the Collateral Agent, all such separate
mortgage and security agreements which may be so requested in form and substance
satisfactory to the Trustee and the Collateral Agent, and, at the request of the
Trustee, but at the expense of the Corporation, the Corporation shall record,
register and file, and keep recorded, registered and filed, such separate
mortgage and security agreements to the extent required hereby, so as to make
the same valid, binding and enforceable obligations of the Corporation and to
make effective and perfect the Security Interests created by thereby and by the
Security.

6.11     AMENDMENTS TO SECURITY
         ----------------------

         The Security and the Collateral Agency Agreement shall not be amended,
except:

         (a)   with the prior approval of the Debentureholders by extraordinary
               resolution passed as provided in Article 10; or

         (b)   if the amendments are, in the opinion of the Trustee, based on
               the advice of Counsel, not prejudicial to the interests of the
               Debentureholders; or

         (c)   where necessary to evidence the succession, or successive
               successions, of other persons as the Collateral Agent; or

         (d)   as set forth in Section 6.2.


                                      -34-



                                    ARTICLE 7
                                     DEFAULT
                                     -------

7.1      ACCELERATION OF MATURITY
         ------------------------

         Upon the happening of any one or more of the following events, namely:

         (a)   if the Corporation makes default in payment of the principal of
               any Debenture when the same becomes due and payable under any
               provision hereof or of the Debentures;

         (b)   if the Corporation makes default in payment of any interest due
               on any Debenture and any such default continues for a period of
               10 days;

         (c)   if a decree or order of a court having jurisdiction in the
               premises is entered adjudging the Corporation a bankrupt or
               insolvent under any bankruptcy, insolvency or analogous laws, or
               issuing sequestration or process of execution against, all or
               substantially all of the property of the Corporation, or
               appointing a receiver of, or of substantially all of the property
               of, the Corporation, or ordering the winding-up or liquidation of
               its affairs, and any such decree or order continues unstayed and
               in effect for a period of 30 days;

         (d)   if a resolution is passed for the winding-up or liquidation of
               the Corporation except in the course of carrying out or pursuant
               to a transaction in respect of which the conditions of Section
               9.1 are duly observed and performed or if the Corporation
               institutes proceedings to be adjudicated a bankrupt or insolvent,
               or consents to the institution of bankruptcy or insolvency
               proceedings against it under any bankruptcy, insolvency or
               analogous laws, or consents to the filing of any such petition or
               to the appointment of a receiver of, or of any substantial part
               of, the property of the Corporation or makes a general assignment
               for the benefit of creditors, or admits in writing its inability
               to pay its debts generally as they become due or takes corporate
               action in furtherance of any of the aforesaid purposes;

         (e)   if the Corporation fails to make any payment of principal or
               interest on any Indebtedness in an amount greater than $250,000
               in respect of which the Corporation is liable when the same
               becomes due and beyond any period of grace provided with respect
               thereto;

         (f)   if any event or circumstance occurs under an agreement or
               instrument relating to Indebtedness of the Corporation in an
               amount greater than $250,000 which could permit a person to
               declare such Indebtedness or any part thereof to become due prior
               to the stipulated date for repayment thereof or maturity, and
               such event or circumstance shall not be remedied or cured, or
               waived by the holders of such Indebtedness, within 30 days after
               such event or circumstance shall have occurred;


                                      -35-



         (g)   if the Corporation shall neglect to observe or perform any other
               covenant or condition herein contained, or contained in the
               Collateral Agency Agreement or the Collateral Documents, on its
               part to be observed or performed and, after notice in writing has
               been received by the Corporation from the Trustee specifying such
               default and requiring the Corporation to put an end to the same
               (which said notice may be given by the Trustee, in its
               discretion, and shall be given by the Trustee upon receipt of a
               request in writing signed by the holders of not less than 25% in
               principal amount of the Debentures then outstanding), the
               Corporation shall fail to make good such default within a period
               of 30 days, unless the Trustee (having regard to the subject
               matter of the default) shall have agreed to a longer period, and
               in such event, within the period agreed to by the Trustee;

         (h)   if there is a Change of Control of the Corporation (as determined
               by the Trustee, based on the advice of Counsel); or

         (i)   if there ceases at any time to be two Representative Directors on
               the board of directors of the Corporation, and any of the
               following occurs:

               (i)   a Representative Director or the Representative Directors
                     have so ceased to be directors of the Corporation as a
                     result of a resolution passed or an election of directors
                     approved by the shareholders of the Corporation; or

               (ii)  the Corporation fails to give notice to the Trustee and the
                     Debentureholders that one or more Representative Directors
                     has ceased to be a director of the Corporation within five
                     days after the date such person ceased to be such a
                     director; or

               (iii) the Corporation fails to appoint or elect an individual,
                     who has been approved as a replacement director by
                     resolution of the Debentureholders and who has consented to
                     act as such, to fill a vacancy in such two Representative
                     Directors' positions within five days of such resolution
                     being passed by the Debentureholders and notice thereof
                     being given to the Corporation;

then in each and every such event the Security shall become enforceable and the
Trustee may in its discretion and shall upon receipt of a request in writing
signed by the holders of not less than 25% in principal amount of the Debentures
then outstanding, subject to the provisions of Section 7.3, by notice in writing
to the Corporation declare the principal of and interest on all Debentures then
outstanding and all other moneys outstanding hereunder to be due and payable and
the same shall forthwith become immediately due and payable to the Trustee,
anything therein or herein to the contrary notwithstanding, and the Corporation
shall forthwith pay to the Trustee for the benefit of the Debentureholders the
principal of, accrued and unpaid interest and such other moneys, together with
interest at the rate borne by the Debentures on such principal, interest and
such other moneys from the date of the said declaration until payment is
received by the Trustee, all less any tax required by law to be deducted from
interest payments. Such payment when made shall be deemed to have been made in
discharge of the Corporation's


                                      -36-



obligation hereunder and any moneys so received by the Trustee shall be applied
in the manner provided in Section 7.6.

7.2      NOTICE OF EVENT OF DEFAULT
         --------------------------

         If an Event of Default shall occur and be continuing the Trustee shall,
within 30 days after it becomes aware of the occurrence of such Event of
Default, give notice of such Event of Default to the Debentureholders in the
manner provided in Section 11.2, provided that, notwithstanding the foregoing,
unless the Trustee shall have been requested to do so by the holders of at least
25% of the principal amount of the Debentures then outstanding, the Trustee
shall not be required to give such notice if the Trustee in good faith shall
have determined that the withholding of such notice would not be prejudicial to
the Debentureholders and shall have so advised the Corporation in writing.

7.3      WAIVER OF DEFAULT
         -----------------

         Upon the happening of any Event of Default hereunder:

         (a)   the holders of more than 50% of the principal amount of the
               Debentures then outstanding shall have the power (in addition to
               the powers exercisable by extraordinary resolution as hereinafter
               provided) by requisition in writing to instruct the Trustee to
               waive any Event of Default and to cancel any declaration made by
               the Trustee pursuant to Section 7.1 and the Trustee shall
               thereupon waive the Event of Default and cancel such declaration,
               upon such terms and conditions as shall be prescribed in such
               requisition; and

         (b)   the Trustee, so long it has not become bound to declare the
               principal of and interest on the Debentures then outstanding to
               be due and payable, or to obtain or enforce payment of the same,
               shall have power to waive any Event of Default if, in the
               Trustee's opinion, the same shall have been cured or adequate
               satisfaction made therefor, and in such event to cancel any such
               declaration theretofore made by the Trustee in the exercise of
               its discretion, upon such terms and conditions as the Trustee may
               deem advisable;

provided that no act or omission either of the Trustee or of the
Debentureholders in the premises shall extend to or be taken in any manner
whatsoever to affect any subsequent Event of Default or the rights resulting
therefrom.

7.4      ENFORCEMENT BY THE TRUSTEE
         --------------------------

         Subject to the provisions of Section 7.3 and to the provisions of any
extraordinary resolution that may be passed by the Debentureholders, in case the
Corporation shall fail to pay to the Trustee, forthwith after the same shall
have been declared to be due and payable under Section 7.1, the principal of and
interest on all Debentures then outstanding, together with any other amounts due
hereunder, the Trustee may in its discretion and shall upon receipt of a request
in writing signed by the holders of not less than 25% in principal amount of the
Debentures then outstanding, and upon being indemnified to its reasonable
satisfaction against all costs, expenses and liabilities to be incurred, proceed
in its name as Trustee hereunder or in the name of the


                                      -37-



Collateral Agent or otherwise to obtain or enforce payment of the said principal
of and interest on all the Debentures then outstanding together with any other
amounts due hereunder, and to enforce and to realize on, and to cause the
Collateral Agent to enforce and to realize on, the Security Interests
constituted by the Security, by such proceedings authorized by this indenture
and the Security or by law or equity as the Trustee in such request shall have
been directed to take, or if such request contains no such direction, or if the
Trustee or the Collateral Agent shall act without such request, then by such
proceedings authorized by this indenture and the Security or by suit at law or
in equity as the Trustee or the Collateral Agent shall deem expedient.

         The Trustee shall be entitled and empowered, either in its own name or
as trustee of an express trust, or as attorney-in-fact for the holders of the
Debentures, or in any one or more of such capacities, to file (or cause the
Collateral Agent to file) such proof of debt, amendment of proof of debt, claim,
petition or other document as may be necessary or advisable in order to have the
claims of the Trustee, the Collateral Agent and of the holders of the Debentures
allowed in any insolvency, bankruptcy, liquidation or other judicial proceedings
relative to the Corporation or its creditors or relative to or affecting its
property, or to enforce the Security. The Trustee is hereby irrevocably
appointed (and the successive respective holders of the Debentures by taking and
holding the same shall be conclusively deemed to have so appointed the Trustee)
the true and lawful attorney-in-fact of the respective holders of the Debentures
with authority to make and file in the respective names of the holders of the
Debentures or on behalf of the holders of the Debentures as a class, subject to
deduction from any such claims of the amounts of any claims filed by any of the
holders of the Debentures themselves, any proof of debt, amendment of proof of
debt, claim, petition or other document in any such proceedings and to receive
payment of any sums becoming distributable on account thereof, and to execute
any such other papers and documents and to do and perform any and all such acts
and things for and on behalf of such holders of the Debentures, as may be
necessary or advisable in the opinion of the Trustee, in order to have the
respective claims of the Trustee, the Collateral Agent and of the holders of the
Debentures against the Corporation or its property allowed in any such
proceeding and to receive payment of or on account of such claims; provided,
however, that nothing contained in this indenture shall be deemed to give to the
Trustee, unless so authorized by extraordinary resolution, any right to accept
or consent to any plan of reorganization or otherwise by action of any character
in such proceeding to waive or change in any way any right of any
Debentureholder.

         The Trustee shall also have power at any time and from time to time to
institute and to maintain, and to cause the Collateral Agent to institute and to
maintain, such suits and proceedings as it may be advised shall be necessary or
advisable to preserve and protect its interests and the interests of the
Debentureholders.

         All rights of action hereunder and under the Security may be enforced
by the Trustee or the Collateral Agent without the possession of any of the
Debentures or the production thereof on the trial or other proceedings relating
thereto. Any such suit or proceeding instituted by the Trustee or the Collateral
Agent shall be brought in the name of the Trustee as trustee of an express trust
or in the name of the Collateral Agent as agent for such Trustee, and any
recovery of judgment shall be for the rateable benefit of the holders of the
Debentures subject to the provisions of this indenture and the Security. In any
proceeding brought by the Trustee or the Collateral Agent (and also any
proceeding in which a declaratory judgment of a court may be


                                      -38-



sought as to the interpretation or construction of any provision of this
indenture or the Security, to which the Trustee or the Collateral Agent shall be
a party) the Trustee and the Collateral Agent shall be held to represent all the
holders of the Debentures, and it shall not be necessary to make any holders of
the Debentures parties to any such proceeding.

7.5      NO SUITS BY DEBENTUREHOLDERS
         ----------------------------

         No holder of any Debenture shall have any right to institute any
action, suit or proceedings at law or in equity for the purpose of enforcing
payment of the principal of or interest on the Debentures or for the execution
of any trust or power hereunder or under the Security or for the appointment of
a liquidator or receiver or for a receiving order under any bankruptcy,
insolvency or analogous laws or to have the Corporation wound up or to file or
prove a claim in any liquidation or bankruptcy proceeding or for any other
remedy hereunder, unless (a) such holder shall previously have given to the
Trustee written notice of the happening of an Event of Default hereunder; and
(b) the Debentureholders by extraordinary resolution (as hereinafter defined) or
by written instrument signed by the holders of at least 25% in principal amount
of the Debentures then outstanding shall have made a request to the Trustee and
the Trustee and the Collateral Agent shall have been afforded reasonable
opportunity either themselves to proceed to exercise the powers hereinbefore
granted or to institute an action, suit or proceeding in their name for such
purpose; and (c) the Debentureholders or any of them shall have furnished to the
Trustee, when so requested by the Trustee, sufficient funds and security and
indemnity satisfactory to it against the costs, expenses and liabilities to be
incurred therein or thereby; and (d) the Trustee or the Collateral Agent shall
have failed to act within a reasonable time after such notification, request and
offer of indemnity; and such notification, request and offer of indemnity are
hereby declared in every such case, at the option of the Trustee, to be
conditions precedent to any such proceeding.

7.6      APPLICATION OF MONEYS BY TRUSTEE
         --------------------------------

         Except as herein otherwise expressly provided, any moneys received by
the Trustee or the Collateral Agent from the Corporation pursuant to the
foregoing provisions of this Article, or as a result of legal or other
proceedings or from any trustee in bankruptcy or liquidator of the Corporation,
shall be applied, together with any other moneys in the hands of the Trustee or
the Collateral Agent available for such purpose, as follows:

         (a)   first, in payment or in reimbursement to the Trustee and the
               Collateral Agent of their compensation, costs, charges, expenses,
               borrowings, advances or other moneys furnished or provided by or
               at the instance of the Trustee or the Collateral Agent in or
               about, the execution of the trusts under, or otherwise in
               relation to, this indenture and the Security, with interest
               thereon as herein provided;

         (b)   second, but subject as hereinafter in this Section 7.6 provided,
               in payment, rateably and proportionately to the holders of
               Debentures, of the principal of and accrued and unpaid interest
               and interest on amounts in default on the Debentures and other
               amounts payable hereunder which shall then be outstanding in the
               priority of principal first, then accrued and unpaid interest,
               then interest on amounts in default and then any such other
               amounts payable hereunder, unless


                                      -39-



               otherwise directed by extraordinary resolution and in that case
               in such order or priority as between principal, interest and
               other amounts as may be directed by such resolution; and

         (c)   third, in payment of the surplus, if any, of such moneys to the
               Corporation or its assigns;

provided, however, that no payment shall be made pursuant to clause (b) above in
respect of the principal, interest or other amounts payable on any Debenture
held, directly or indirectly, by or for the benefit of the Corporation or any
Subsidiary (other than any Debenture pledged for value and in good faith to a
person other than the Corporation or any Subsidiary but only to the extent of
such person's interest therein) except subject to the prior payment in full of
the principal, interest and other amounts payable on all Debentures which are
not so held.

7.7      DISTRIBUTION OF PROCEEDS
         ------------------------

         Payments to holders of Debentures pursuant to clause (b) of Section 7.6
shall be made as follows:

         (a)   at least 15 days notice of every such payment shall be given in
               the manner provided in Section 11.2 specifying the time when and
               the place or places where the Debentures are to be presented and
               the amount of the payment and the application thereof as between
               principal, interest and any other amounts;

         (b)   payment of any Debenture shall be made upon presentation thereof
               at any one of the places specified in such notice and any such
               Debenture thereby paid in full shall be surrendered, otherwise a
               memorandum of such payment shall be endorsed thereon; but the
               Trustee may in its discretion dispense with presentation and
               surrender for endorsement in any special case upon such indemnity
               being given as it shall deem sufficient;

         (c)   from and after the date of payment specified in the notice,
               interest shall accrue only on the amount owing on each Debenture
               after giving credit for the amount of the payment specified in
               such notice unless the Debenture in respect of which such amount
               is owing be duly presented on or after the date so specified and
               payment of such amount be not made; and

         (d)   the Trustee shall not be bound to apply or make any partial or
               interim payment of any moneys coming into its hands if the amount
               so received by it, after reserving thereout such amount as the
               Trustee may think necessary to provide for the payments mentioned
               in subsection 7.6(a), is insufficient to make a distribution of
               at least 2% of the aggregate principal amount of the outstanding
               Debentures, but it may retain the money so received by it and
               invest or deposit the same as provided in Section 12.9 until the
               money or the investments representing the same, with the income
               derived therefrom, together with any other moneys for the time
               being under its control shall be sufficient for the said purpose
               or until it shall consider it advisable to apply the same in the
               manner hereinbefore set forth. The foregoing shall, however, not
               apply to a final payment in distribution hereunder.


                                      -40-



7.8      REMEDIES CUMULATIVE
         -------------------

         No remedy herein conferred upon or reserved to the Trustee, or upon or
to the holders of Debentures, is intended to be exclusive of any other remedy,
but each and every such remedy shall be cumulative and shall be in addition to
every other remedy given hereunder or now existing or hereafter to exist by law
or by statute.

7.9      JUDGMENT AGAINST THE CORPORATION
         --------------------------------

         The Corporation covenants and agrees with the Trustee that, in case of
any judicial or other proceedings to enforce the rights of the Debentureholders,
judgment may be rendered against it in favour of the Debentureholders or in
favour of the Trustee, as trustee for the Debentureholders, or in favour of the
Collateral Agent, as agent for the Trustee, for any amount which may remain due
in respect of the Debentures and the interest thereon and any other moneys owing
hereunder.

7.10     JUDGMENT CURRENCY
         -----------------

         (a)   If for the purposes of obtaining judgment in any court it is
               necessary to convert all or any part of any amount due under the
               Debentures or to the Trustee hereunder in any currency (the
               "Original Currency") into another currency (the "Other
               Currency"), then the Corporation, to the fullest extent that it
               may effectively do so, agrees that the rate of exchange used
               shall be that at which, in accordance with normal banking
               procedures, the Trustee could purchase the Original Currency with
               the Other Currency in the principal relevant market on a Business
               Day immediately preceding the day on which any such judgment, or
               any relevant part thereof, is paid or otherwise satisfied.

         (b)   The obligation of the Corporation in respect of any sum due
               hereunder or under the Debentures in the Original Currency shall,
               notwithstanding any judgment in any Other Currency, be discharged
               only to the extent that on the Business Day following receipt by
               a party of any sum adjudged to be so due in such Other Currency
               or of any other sum in any Other Currency the Trustee may, in
               accordance with normal banking procedures, purchase the Original
               Currency with such Other Currency. If the amount of the Original
               Currency so purchased is less than the sum originally due to the
               Debentureholders or the Trustee, as the case may be, in the
               Original Currency, the Corporation shall, as a separate
               obligation, and notwithstanding any such judgment, indemnify the
               Debentureholders or the Trustee, as the case may be, against such
               loss, and if the amount of the Original Currency so purchased
               exceeds the sum originally due to the Debentureholders or the
               Trustee, as the case may be, the Debentureholders or the Trustee,
               as the case may be, shall remit such excess to the Corporation.

7.11     IMMUNITY OF SHAREHOLDERS AND OTHERS
         -----------------------------------

         The Debentureholders and the Trustee hereby waive and release any
right, cause of action or remedy now or hereafter existing in any jurisdiction
against any past, present or future incorporator, shareholder, director, officer
or agent of the Corporation or of any successor


                                      -41-



company for the payment of the principal of or interest on any of the Debentures
or on any covenant, agreement, representation or warranty by the Corporation
herein or in the Debentures contained.

7.12     TRUSTEE APPOINTED ATTORNEY
         --------------------------

         The Corporation hereby irrevocably appoints the Trustee to be the
attorney of the Corporation in the name and on behalf of the Corporation to
execute any instruments and do any acts and things which the Corporation ought
to execute and do, and has not executed or done, under the covenants and
provisions contained in this indenture and generally to use the name of the
Corporation in the exercise of all or any of the powers hereby conferred on the
Trustee, with full powers of substitution and revocation.

                                   ARTICLE 8
                           SATISFACTION AND DISCHARGE
                           --------------------------

8.1      CANCELLATION AND DESTRUCTION
         ----------------------------

         All matured Debentures shall forthwith after payment thereof be
delivered to the Trustee and cancelled by it. All Debentures cancelled or
required to be cancelled under this or any other provision of this indenture
shall be destroyed by the Trustee and if required by the Corporation the Trustee
shall furnish to it a destruction certificate setting out the designating
numbers of the Debentures so destroyed.

8.2      NON-PRESENTATION OF DEBENTURES
         ------------------------------

         In case the holder of any Debenture shall fail to present the same for
payment on the date on which the principal thereof becomes payable either at
maturity or otherwise or shall not accept payment on account thereof and give
such receipt therefor and for any interest thereon or represented thereby, if
any, as the Trustee may require:

         (a)   the Corporation shall be entitled to pay to the Trustee and
               direct it to set aside; or

         (b)   in respect of moneys in the hands of the Trustee which may or
               should be applied to the payment of the Debentures, the
               Corporation shall be entitled to direct the Trustee to set aside;

the principal moneys or the interest, as the case may be, in trust for the
holder of such Debenture, either in the deposit department of the Trustee or in
some chartered bank in Canada, to be paid to such holder, with no interest
thereon, upon due presentation or surrender thereof in accordance with the
provisions of this indenture; and thereupon the principal moneys and any
interest payable on or represented by each Debenture in respect whereof such
moneys have been set aside shall be deemed to have been paid and the holder
thereof shall thereafter have no right in respect thereof except that of
receiving payment of the moneys so set aside, by the Trustee upon due
presentation and surrender thereof, subject always to the provisions of Section
8.3.


                                      -42-



8.3      REPAYMENT OF UNCLAIMED MONEYS
         -----------------------------

         Subject to applicable law, any moneys set aside under Sections 3.6 or
8.2 and not claimed by and paid to holders of Debentures as provided in Sections
3.6 or 8.2 within six years after the date of such setting aside shall be repaid
to the Corporation by the Trustee on demand and thereupon the Trustee shall be
released from all further liability with respect to such moneys and thereafter
the holders of the Debentures in respect of which such moneys were so repaid to
the Corporation shall have no rights in respect thereof except to obtain payment
of the moneys due thereon from the Corporation up to such time as the right to
proceed against the Corporation for recovery of such moneys has become statute
barred under the laws of the Province of British Columbia.

8.4      DISCHARGE
         ---------

         The Trustee shall at the request of the Corporation release and
discharge this indenture, the Collateral Agency Agreement and the Security and
execute and deliver such instruments as it shall be advised by Counsel are
requisite for that purpose and to release the Corporation from its covenants
herein and therein contained (other than the provisions relating to the
indemnification of the Trustee and the Collateral Agent), upon proof being given
to the reasonable satisfaction of the Trustee that (i) the principal of and
interest (including interest on amounts in default, if any) on all the
Debentures and all other moneys payable hereunder, under the Collateral Agency
Agreement and under the Security have been paid or satisfied, or (ii) all the
Debentures having matured or having been duly called for redemption, payment of
the principal of and interest (including interest on amounts in default, if any)
on such Debentures and of all other moneys payable hereunder, under the
Collateral Agency Agreement and under the Security has been duly and effectually
provided for in accordance with the provisions hereof, or (iii) all the
Debentures have been converted into Shares, or (iv) by reason of one of the
events set forth in (i), (ii) and (iii) aforesaid having occurred with respect
to all Debentures in aggregate, no Debentures are outstanding.

                                   ARTICLE 9
                             SUCCESSOR CORPORATIONS
                             ----------------------

9.1      CERTAIN REQUIREMENTS
         --------------------

         The Corporation shall not enter into any transaction (including by way
of reconstruction, reorganization, consolidation, amalgamation, arrangement,
merger, liquidation, dissolution, winding-up, transfer, sale or otherwise)
whereby all or substantially all of its undertaking, property and assets would
become the property of any other person, or, in the case of any such
amalgamation or merger, of the continuing corporation resulting therefrom,
unless:

         (a)   such transaction is approved by extraordinary resolution of the
               Debentureholders as set forth in Article 10;

         (b)   such other person or continuing corporation (herein called
               "SUCCESSOR CORPORATION") is a corporation incorporated under the
               laws of the United States of America or Canada or one of its
               states or provinces, as the case may be;


                                      -43-



         (c)   the Successor Corporation shall execute, prior to or
               contemporaneously with the consummation of such transaction, such
               instruments, if any, as are in the opinion of counsel to the
               Trustee necessary or advisable to evidence the assumption by the
               Successor Corporation of liability for the due and punctual
               payment of all the Debentures, interest thereon and all other
               monies payable hereunder, the covenant of the Successor
               Corporation to pay the same and the agreement of the Successor
               Corporation to observe and perform all the covenants and
               obligations of the Corporation under this indenture;

         (d)   such transaction, in the opinion of Counsel, shall be upon such
               terms as to substantially preserve and not impair any of the
               rights and powers of the Trustee or the Debentureholders
               hereunder; and

         (e)   no condition or event shall exist in respect of the Successor
               Corporation at the time of such transaction or after giving full
               effect thereto which constitutes or would constitute an Event of
               Default hereunder.

9.2      VESTING OF POWERS IN SUCCESSOR
         ------------------------------

         Whenever the conditions of Section 9.1 have been duly observed and
performed the Successor Corporation shall possess and from time to time may
exercise each and every right and power of the Corporation under this indenture
in the name of the Corporation or otherwise and any act or proceeding by any
provision of this indenture required to be done or performed by any directors or
officers of the Corporation may be done and performed with like force and effect
by the directors or officers of such Successor Corporation.

                                   ARTICLE 10
                          MEETINGS OF DEBENTUREHOLDERS
                          ----------------------------

10.1     RIGHT TO CONVENE MEETING
         ------------------------

         The Trustee or the Corporation may at any time and from time to time
and the Trustee shall on receipt of a written request of the Corporation or a
written request signed by the holders of not less than 25% in principal amount
of the Debentures then outstanding and upon being indemnified to its reasonable
satisfaction by the Corporation or by the Debentureholders signing such request
against the costs which may be incurred in connection with the calling and
holding of such meeting, convene a meeting of the Debentureholders. In the event
of the Trustee failing within 30 days after receipt of any such request and such
indemnity to give notice convening a meeting, the Corporation or such
Debentureholders, as the case may be, may convene such meeting. Every such
meeting shall be held in the City of Vancouver or at such other place as may be
approved or determined by the Trustee.

10.2     NOTICE OF MEETINGS
         ------------------

         At least 15 days notice of any meeting shall be given to the
Debentureholders in the manner provided in Section 11.2 and a copy thereof shall
be sent by post to the Trustee, unless the meeting has been called by it, and to
the Corporation, unless the meeting has been called by it. Such notice shall
state the time when and the place where the meeting is to be held and shall


                                      -44-



state the business to be transacted thereat and it shall not be necessary for
any such notice to set out the terms of any resolution to be proposed or any of
the provisions of this Article. The accidental omission to give notice of a
meeting to any holder of Debentures shall not invalidate any resolution passed
at any such meeting.

10.3     CHAIRMAN
         --------

         Some person, who need not be a Debentureholder, nominated in writing by
the Trustee shall be chairman of the meeting and if no person is so nominated,
or if the person so nominated is not present within 15 minutes from the time
fixed for the holding of the meeting, the Debentureholders present in person or
by proxy shall choose some person present to be chairman.

10.4     QUORUM
         ------

         Subject to the provisions of Section 10.12, at any meeting of the
Debentureholders a quorum shall consist of Debentureholders present in person or
by proxy and representing at least 25% in principal amount of the outstanding
Debentures. If a quorum of the Debentureholders shall not be present within 30
minutes from the time fixed for holding any meeting, the meeting, if summoned by
the Debentureholders or pursuant to a request of the Debentureholders, shall be
dissolved but in any other case the meeting shall be adjourned to the same day
in the next week (unless such day is a non-business day in which case it shall
be adjourned to the next following business day thereafter) at the same time and
place and no notice shall be required to be given in respect of such adjourned
meeting. At the adjourned meeting the Debentureholders present in person or by
proxy shall form a quorum and may transact the business for which the meeting
was originally convened notwithstanding that they may not represent 25% of the
principal amount of the outstanding Debentures. Any business may be brought
before or dealt with at an adjourned meeting which might have been brought
before or dealt with at the original meeting in accordance with the notice
calling the same. No business shall be transacted at any meeting unless the
required quorum be present at the commencement of business.

10.5     POWER TO ADJOURN
         ----------------

         The chairman of any meeting at which a quorum of the Debentureholders
is present may with the consent of the holders of a majority in principal amount
of the Debentures represented thereat, adjourn any such meeting and no notice of
such adjournment need be given except such notice, if any, as the meeting may
prescribe.

10.6     SHOW OF HANDS
         -------------

         Every question submitted to a meeting shall, subject to Section 10.7,
be decided in the first place by a majority of the votes given on a show of
hands. At any such meeting, unless a poll is duly demanded as herein provided, a
declaration by the chairman that a resolution has been carried or carried
unanimously or by a particular majority or lost or not carried by a particular
majority shall be conclusive evidence of the fact. The chairman of any meeting
shall be entitled, both on a show of hands and on a poll, to vote in respect of
the Debentures, if any, held by him.


                                      -45-



10.7     POLL
         ----

         On every extraordinary resolution, and on any other question submitted
to a meeting when demanded by the chairman or by one or more Debentureholders or
proxies for Debentureholders, a poll shall be taken in such manner and either at
once or after an adjournment as the chairman shall direct. Questions other than
extraordinary resolutions shall, if a poll be taken, be decided by the votes of
the holders of a majority in principal amount of the Debentures represented at
the meeting and voted on the poll.

10.8     VOTING
         ------

         On a show of hands every person who is present and entitled to vote,
whether as a Debentureholder or as proxy for one or more Debentureholders or
both, shall have one vote. On a poll each Debentureholder present in person or
represented by a proxy duly appointed by an instrument in writing shall be
entitled to one vote in respect of each $1,000 principal amount of Debentures of
which he shall then be the holder. A proxy need not be a Debentureholder. In the
case of joint registered holders of a Debenture, any one of them present in
person or by proxy at the meeting may vote in the absence of the other or
others; but in case more than one of them be present in person or by proxy, they
shall vote together in respect of the Debentures of which they are joint
registered holders.

10.9     REGULATIONS
         -----------

         The Trustee, or the Corporation with the approval of the Trustee, may
(for the purpose of enabling the holders of Debentures to be represented and
vote at any such meeting by proxy and for the purpose of enabling the lodging of
such proxies at some place or places other than the place where the meeting is
to be held) from time to time make and from time to time vary or revoke such
regulations as it shall from time to time think fit providing for and governing:

         (a)   the voting by proxy by holders of Debentures and the form of the
               instrument appointing a proxy, which shall be in writing, and the
               manner in which the same shall be executed and the production of
               the authority of any person signing on behalf of a
               Debentureholder;

         (b)   the deposit of instruments appointing proxies at such place as
               the Trustee, the Corporation or the Debentureholder convening the
               meeting, as the case may be, may, in the notice convening the
               meeting, direct and the time, if any, before the holding of the
               meeting or any adjournment thereof by which the same shall be
               deposited; and

         (c)   the deposit of instruments appointing proxies at some approved
               place or places other than the place at which the meeting is to
               be held and enabling particulars of such instruments appointing
               proxies to be mailed or sent by telecopier before the meeting to
               the Corporation or to the Trustee at the place where the same is
               to be held and for the voting of proxies so deposited as though
               the instruments themselves were produced at the meeting.


                                      -46-



         Any regulations so made shall be binding and effective and the votes
given in accordance therewith shall be valid and shall be counted. Save as such
regulations may provide, the only persons who shall be recognized at any meeting
as the holders of any Debentures, or as entitled to vote or be present at the
meeting in respect thereof, shall be registered holders of Debentures.

10.10    PERSONS ENTITLED TO ATTEND MEETINGS
         -----------------------------------

         The Corporation and the Trustee, by their respective officers and
directors, and the legal advisers of the Corporation, the Trustee and any
Debentureholder may attend any meeting of the Debentureholders, but shall have
no vote as such.

10.11    POWERS EXERCISABLE BY EXTRAORDINARY RESOLUTION
         ----------------------------------------------

         In addition to the powers conferred upon them by any other provisions
of this indenture or by law, a meeting of the Debentureholders shall have the
following powers exercisable from time to time by extraordinary resolution:

         (a)   power to sanction any modification, abrogation, alteration,
               compromise or arrangement of the rights of the Debentureholders
               or the Trustee against the Corporation, or against its property,
               whether such rights arise under this indenture, the Debentures,
               the Collateral Agency Agreement, the Collateral Documents or
               otherwise;

         (b)   power to assent to any modification of or change in or addition
               to or omission from the provisions contained in this indenture,
               any Debenture, the Collateral Agency Agreement or the Collateral
               Documents which shall be agreed to by the Corporation and to
               authorize the Trustee to concur in and execute any indenture
               supplemental hereto or authorize the Collateral Agent to concur
               in and execute any supplemental to the Collateral Agency
               Agreement or the Collateral Documents, embodying any
               modification, change, addition or omission;

         (c)   power to sanction any scheme or plan for the reconstruction or
               reorganization of the Corporation or for the consolidation,
               amalgamation or merger of the Corporation with any other
               corporation or for the sale, leasing, transfer or other
               disposition of the undertaking, property and assets of the
               Corporation or any part thereof;

         (d)   power to direct or authorize the Trustee or the Collateral Agent
               to exercise any power, right, remedy or authority given to it by
               this indenture, the Collateral Agency Agreement or the Collateral
               Documents in any manner specified in any such extraordinary
               resolution or to refrain from exercising any such power, right,
               remedy or authority;

         (e)   power to waive and direct the Trustee to waive any default
               hereunder or cancel any declaration made by the Trustee pursuant
               to Section 7.1 either unconditionally or upon any condition
               specified in such extraordinary resolution;


                                      -47-



         (f)   power to restrain any Debentureholder from taking or instituting
               any suit, action or proceeding for the purpose of enforcing
               payment of the principal of or interest on the Debentures, or for
               the execution of any trust or power hereunder;

         (g)   power to direct any Debentureholder who, as such, has brought any
               action, suit or proceeding to stay or discontinue or otherwise
               deal with the same upon payment, if the taking of such suit,
               action or proceeding shall have been permitted by Section 7.5, of
               the costs, charges and expenses reasonably and properly incurred
               by such Debentureholder in connection therewith;

         (h)   power to assent to any compromise or arrangement with any
               creditor or creditors or any class or classes of creditors,
               whether secured or otherwise, and with holders of any shares or
               other securities of the Corporation;

         (i)   power to appoint a committee with power and authority (subject to
               such limitations, if any, as may be prescribed in the resolution)
               to exercise, and to direct the Trustee to exercise, on behalf of
               the Debentureholders, such of the powers of the Debentureholders
               as are exercisable by extraordinary or other resolution as shall
               be included in the resolution appointing the committee. The
               resolution making such appointment may provide for payment of the
               expenses and disbursements of and compensation to such committee.
               Such committee shall consist of such number of persons as shall
               be prescribed in the resolution appointing it and the members
               need not be themselves Debentureholders. Every such committee may
               elect its chairman and may make regulations respecting its
               quorum, the calling of its meetings, the filling of vacancies
               occurring in its number and its procedure generally. Such
               regulations may provide that the committee may act at a meeting
               at which a quorum is present or may act by minutes signed by the
               number of members thereof necessary to constitute a quorum. All
               acts of any such committee within the authority delegated to it
               shall be binding upon all Debentureholders. Neither the committee
               nor any member thereof shall be liable for any loss arising from
               or in connection with any action taken or omitted to be taken by
               them in good faith;

         (j)   power to authorize the distribution in specie of any shares,
               bonds, debentures or other securities or obligations or cash or
               other consideration received hereunder or the use or disposal of
               the whole or any part of such shares, bonds, debentures or other
               securities or obligations or cash or other consideration in such
               manner and for such purpose as may be deemed advisable and
               specified in such extraordinary resolution;

         (k)   power to authorize the Trustee or any other person or persons to
               bid at any sale of the Corporation's properties or assets or any
               part thereof and to borrow the moneys required to make any
               deposit at said sale or pay the balance of the purchase price and
               to hypothecate, mortgage, pledge, charge, cede and transfer the
               property or assets so purchased as security for the repayment of
               the moneys so borrowed and interest thereon, or itself, himself
               or themselves, as the case may be, to advance such moneys in
               which event it, he or they shall have a lien upon


                                      -48-



               the property or assets so purchased for the amount so advanced
               and interest thereon) and to hold any property or assets so
               purchased (subject to any hypothec, mortgage, pledge, charge or
               lien to secure any moneys so borrowed or advanced) in trust for
               all the holders of the Debentures outstanding at the time of such
               sale pro rata in proportion to the amounts due to them thereon
               respectively for principal and interest before such sale, and to
               sell, transfer and convey the whole or any part or parts of the
               property or assets so purchased for such consideration in cash or
               in the shares, bonds, debentures or other securities or
               obligations of any company formed or to be formed, or partly in
               cash and partly in such securities or obligations, and upon such
               terms and conditions as may be determined by such extraordinary
               resolution of the Debentureholders and, subject to such terms and
               conditions, to dispose of such cash, shares, bonds, debentures or
               other securities or obligations pursuant to the provisions of
               subsection (j) of this Section 10.11, and until the sale,
               transfer or conveyance of the whole of such property or assets so
               purchased to maintain and operate such part of said property and
               assets as has not been disposed of, and for such purposes to
               borrow moneys and to hypothecate, mortgage, pledge, charge and
               cede and transfer the property and assets so purchased, or any
               part thereof, as security for the repayment of the moneys so
               borrowed, with interest thereon, or itself, himself or
               themselves, as the case may be, to advance such moneys (in which
               event it, he or they shall have a lien or charge upon the
               property and assets so purchased for the amounts so advanced and
               interest thereon) and otherwise deal with such property and
               assets and the proceeds of any sale, transfer or conveyance
               thereof as the Debentureholders may by such extraordinary
               resolution direct;

         (l)   power to remove the Trustee from office and to appoint a new
               Trustee or Trustees and power to require the Trustee to remove
               the Collateral Agent from office and to appoint a new Collateral
               Agent;

         (m)   power to sanction the exchange of the Debentures for or the
               conversion thereof into shares, bonds, debentures or other
               securities or obligations of the Corporation or of any company
               formed or to be formed;

         (n)   power, notwithstanding Section 5.6, to authorize the Corporation
               and the Trustee to grant extensions of time for payment of
               interest on any of the Debentures, whether or not the interest
               the payment in respect of which is extended, is at the time due
               or overdue; and

         (o)   power to amend, alter or repeal any extraordinary resolution
               previously passed or sanctioned by the Debentureholders or by any
               committee appointed pursuant to subsection 10.11(i).

10.12    MEANING OF "EXTRAORDINARY RESOLUTION"
         -------------------------------------

         (a)   The expression "EXTRAORDINARY RESOLUTION" when used in this
               indenture means, subject as hereinafter in this Article provided,
               a resolution proposed to be passed as an extraordinary resolution
               at a meeting of Debentureholders (including an


                                      -49-



               adjourned meeting) duly convened for the purpose and held in
               accordance with the provisions of this Article at which, subject
               to Section 10.12(b), the holders of not less than 50% in
               principal amount of the Debentures then outstanding are present
               in person or by proxy and passed by the favourable votes of the
               holders of not less than 66 2/3% of the principal amount of
               Debentures represented at the meeting and voted on a poll upon
               such resolution.

         (b)   If, at any such meeting, the holders of not less than 50% in
               principal amount of the Debentures outstanding are not present in
               person or by proxy within 30 minutes after the time appointed for
               the meeting, then the meeting, if convened by or on the
               requisition of Debentureholders, shall be dissolved, but in any
               other case it shall stand adjourned to such date, being not less
               than 10 nor more than 60 days later, and to such place and time
               as may be appointed by the chairman. Not less than 10 days notice
               shall be given of the time and place of such adjourned meeting in
               the manner provided in Section 11.2. Such notice may be given
               prior to the convening of the original meeting, in anticipation
               of no quorum being present thereat, in which event it shall state
               that it is to have effect only if the original meeting is
               adjourned for lack of a quorum. Such notice shall state that at
               the adjourned meeting the Debentureholders present in person or
               by proxy shall form a quorum but it shall not be necessary to set
               forth the purposes for which the meeting was originally called or
               any other particulars. At the adjourned meeting the
               Debentureholders present in person or by proxy shall form a
               quorum and may transact the business for which the meeting was
               originally convened and a resolution proposed at such adjourned
               meeting and passed by the requisite vote as provided in
               subsection (a) of this Section shall be an extraordinary
               resolution within the meaning of this indenture, so long as the
               holders of not less than 25% in principal amount of the
               Debentures then outstanding are present in person or by proxy at
               such adjourned meeting.

         (c)   Votes on an extraordinary resolution shall always be given on a
               poll and no demand for a poll on an extraordinary resolution
               shall be necessary.

10.13    POWERS CUMULATIVE
         -----------------

         It is hereby declared and agreed that any one or more of the powers in
this indenture stated to be exercisable by the Debentureholders by extraordinary
resolution or otherwise may be exercised from time to time and the exercise of
any one or more of such powers from time to time shall not be deemed to exhaust
the rights of the Debentureholders to exercise the same or any other such power
or powers thereafter from time to time.

10.14    MINUTES
         -------

         Minutes of all resolutions and proceedings at every meeting as
aforesaid shall be made and duly entered in books to be from time to time
provided for that purpose by the Corporation, and any such minutes as aforesaid,
if signed by the chairman of the meeting at which such resolutions were passed
or proceedings had, or by the chairman of the next succeeding meeting of the
Debentureholders, shall be prima facie evidence of the matters therein stated
and, until the


                                      -50-



contrary is proved, every such meeting, in respect of the proceedings of which
minutes shall have been made, shall be deemed to have been duly held and
convened, and all resolutions passed thereat or proceedings taken thereat to
have been duly passed and taken.

10.15    INSTRUMENTS IN WRITING
         ----------------------

         All actions which may be taken and all powers that may be exercised by
the Debentureholders at a meeting held as hereinbefore in this Article provided
may also be taken and exercised by the holders of 66 2/3% of the principal
amount of all the outstanding Debentures by an instrument in writing signed in
one or more counterparts and the expression "EXTRAORDINARY RESOLUTION" when used
in this indenture shall include an instrument so signed.

10.16    BINDING EFFECT OF RESOLUTIONS
         -----------------------------

         Every resolution and every extraordinary resolution passed in
accordance with the provisions of this Article at a meeting of Debentureholders
shall be binding upon all the Debentureholders, whether present at or absent
from such meeting, and every instrument in writing signed by Debentureholders in
accordance with Section 10.15 shall be binding upon all the Debentureholders,
whether signatories thereto or not, and each and every Debentureholder and the
Trustee (subject to the provisions for its indemnity herein contained) shall be
bound to give effect accordingly to every such resolution, extraordinary
resolution and instrument in writing.

10.17    EVIDENCE OF RIGHTS OF DEBENTUREHOLDERS
         --------------------------------------

         Any request, direction, notice, consent or other instrument which this
indenture may require or permit to be signed or executed by the Debentureholders
may be in any number of concurrent instruments of similar tenor and may be
signed or executed by such Debentureholders in person or by attorney duly
appointed in writing. Proof of the execution of any such request or other
instrument or of a writing appointing any such attorney or (subject to the
provisions of this Article with regard to voting at meetings of
Debentureholders) of the holding by any person of Debentures shall be sufficient
for any purpose of this indenture if made in the following manner, namely, the
fact and date of execution by any person of such request or other instrument or
writing may be proved by the certificate of any notary public, or other officer
authorized to take acknowledgements of deeds to be recorded at the place where
such certificate is made, that the person signing such request or other
instrument in writing acknowledged to him the execution thereof, or by an
affidavit of a witness of such execution or in any other manner which the
Trustee may consider adequate.

         The Trustee may, nevertheless, in its discretion require further proof
in cases where it deems further proof desirable or may accept such other proof
as it shall consider proper.

                                   ARTICLE 11
                                     NOTICES
                                     -------

11.1     NOTICE TO CORPORATION AND TRUSTEE
         ---------------------------------

         (a)   Notices to the Corporation and the Trustee may be delivered:


                                      -51-



               (i)   personally by leaving them with the party, or at the
                     offices of the party, to whom they are addressed at that
                     party's address hereinafter given, and notices so served
                     shall be deemed to have been received by the addressee
                     thereof on the day of delivery, unless actually delivered
                     on a day which is not a business day or after 4:00 p.m. on
                     the day of delivery, in which case notice shall be deemed
                     to be received on the next ensuing business day;

               (ii)  by telecopier, or any other like method by which a message
                     may be sent directed to the party to whom they are to be
                     delivered at that party's address hereinafter given, and
                     notices so sent shall be deemed to have been received by
                     the addressee thereof on the business day next ensuing
                     after the day of sending; and

               (iii) by mailing them first class registered post, postage
                     prepaid, to the party to whom they are to be delivered, in
                     which case notices mailed shall be deemed (in the absence
                     of general postal disruption) to be received by the
                     addressee thereof on the fifth business day following the
                     day of mailing thereof.

         (b)   The address of each of the parties to this indenture shall be as
               follows:

               (i)   to the Corporation:

                     American Natural Energy Corporation
                     7030 South Yale, Suite 404
                     Tulsa, Oklahoma
                     U.S.A. 74136

                     Telecopy: (918) 481-1473
                     Attention: President

               (ii)  to the Trustee:

                     Computershare Trust Company of Canada
                     510 Burrard Street, 3rd Floor,
                     Vancouver, British Columbia
                     V6C 3B9

                     Telecopy: (604) 685-4079
                     Attention: Manager, Corporate Trust

         (c)   Any party to this indenture may change its address by notice
               delivered in accordance with this indenture.

11.2     NOTICE TO DEBENTUREHOLDERS
         --------------------------

         Except as herein otherwise expressly provided, all notices to be given
hereunder with respect to the Debentures shall be deemed to be validly given to
the holders of Debentures if


                                      -52-



delivered or if sent through the ordinary post, postage prepaid, by letter or
circular addressed to such holders at their post office addresses appearing in
any of the registers hereinbefore mentioned. Any notice so delivered or served
by post shall be deemed to have been given or served on the day upon which it is
delivered or posted as aforesaid. Any accidental error, omission or failure in
giving or in delivering or mailing any such notice or the inability of the
Corporation to give or mail any notice due to anything beyond the reasonable
control of the Corporation or the non-receipt of any such notice by the
Debentureholder or holders shall not invalidate or otherwise prejudicially
affect any action or proceeding founded thereon.

         All notices with respect to any jointly owned Debenture may be given to
whichever one of the holders thereof (if more than one) is named first in the
registers hereinbefore mentioned, and any notice so given shall be sufficient
notice to all holders of and persons interested in such Debenture.

                                   ARTICLE 12
                             CONCERNING THE TRUSTEE
                             ----------------------

12.1     NO CONFLICT OF INTEREST
         -----------------------

         The Trustee represents to the Corporation and the Debentureholders that
at the date of execution and delivery by it of this indenture there exists no
material conflict of interest in the role of the Trustee as a fiduciary
hereunder but if, notwithstanding the provisions of this Section 12.1, such a
material conflict of interest exists, the validity and enforceability of this
indenture, and the securities issued hereunder shall not be affected in any
manner whatsoever by reason only that such material conflict of interest exists
but the Trustee shall, within 90 days after ascertaining that it has a material
conflict of interest, either eliminate such material conflict of interest or
resign in the manner and with the effect specified in Section 12.2.

12.2     REPLACEMENT OF TRUSTEE
         ----------------------

         The Trustee may resign its trust and be discharged from all further
duties and liabilities hereunder by giving to the Corporation three months
notice in writing or such shorter notice as the Corporation may accept as
sufficient. If at any time a material conflict of interest exists in the
Trustee's role as a fiduciary hereunder the Trustee shall, within 90 days after
ascertaining that such a material conflict of interest exists, either eliminate
such material conflict of interest or resign in the manner and with the effect
specified in this Section. The validity and enforceability of this indenture and
of the Debentures issued hereunder shall not be affected in any manner
whatsoever by reason only that such material conflict of interest exists. In the
event of the Trustee resigning or being removed or being dissolved, becoming
bankrupt, going into liquidation or otherwise becoming incapable of acting
hereunder, the Corporation shall forthwith appoint a new Trustee unless a new
Trustee has already been appointed by the Debentureholders; failing such
appointment by the Corporation, the retiring Trustee or any Debentureholder may
apply to a Judge of the Supreme Court of British Columbia, on such notice as
such Judge may direct, for the appointment of a new Trustee but any new Trustee
so appointed by the Corporation or by the Court shall be subject to removal as
aforesaid by the Debentureholders. Any new Trustee appointed under any provision
of this Section shall be a corporation authorized to carry on business of a
trust company in the Province of British Columbia. On any new


                                      -53-



appointment the new Trustee shall be vested with the same powers, rights, duties
and responsibilities as if it had been originally named herein as Trustee.

         Any company into which the Trustee may be merged or with which it may
be consolidated or amalgamated or any company resulting from any merger,
consolidation or amalgamation to which the Trustee shall be a party, shall be
the successor trustee under this indenture and under the Collateral Agency
Agreement without the execution of any instrument or any further act.
Nevertheless, upon the written request of the successor Trustee or of the
Corporation, the Trustee ceasing to act shall execute and deliver an instrument
assigning and transferring to such successor Trustee, upon the trusts herein
expressed, all the rights, powers and trusts of the Trustee so ceasing to act,
and shall duly assign, transfer and deliver all property and money held by such
Trustee to the successor Trustee so appointed in its place. Should any deed,
conveyance or instrument in writing from the Corporation be required by any new
Trustee for more fully and certainly vesting in and confining to it such
estates, properties, rights, powers and trusts, then any and all such deeds,
conveyances and instruments in writing shall on request of said new Trustee, be
made, executed, acknowledged and delivered by the Corporation.

12.3     DUTIES OF TRUSTEE
         -----------------

         In the exercise of the rights, duties and obligations prescribed or
conferred by the terms of this indenture, the Trustee shall act honestly and in
good faith with a view to the best interests of the Debentureholders and shall
exercise that degree of care, diligence and skill that a reasonably prudent
trustee would exercise in comparable circumstances.

12.4     RELIANCE UPON DECLARATIONS
         --------------------------

         In the exercise of its rights, duties and obligations hereunder the
Trustee may, if acting in good faith, rely, as to the truth of the statements
and accuracy of the opinions expressed therein, upon statutory declarations,
opinions, reports or certificates furnished pursuant to any covenant, condition
or requirement of this indenture or required by the Trustee to be furnished to
it in the exercise of its rights and duties hereunder, if the Trustee examines
such statutory declarations, opinions, reports or certificates and determines
that they comply with Section 12.5, if applicable, and with any other applicable
requirements of this indenture.

12.5     EVIDENCE AND AUTHORITY TO TRUSTEE
         ---------------------------------

         The Corporation shall furnish to the Trustee evidence of compliance
with the conditions precedent provided for in this indenture relating to any
action or step required or permitted to be taken by the Corporation or the
Trustee under this indenture or as a result of any obligation imposed under this
indenture, including without limitation, the certification and delivery of
Debentures hereunder, the satisfaction and discharge of this indenture and the
taking of any other action to be taken by the Trustee at the request of or on
the application of the Corporation, forthwith if and when (a) such evidence is
required by any other Section of this indenture to be furnished by the Trustee
in accordance with the terms of this Section 12.5 or (b) the Trustee, in the
exercise of its rights and duties under this indenture, gives the Corporation
written notice requiring it to furnish such evidence in relation to any
particular action or obligation specified in such notice.


                                      -54-



         Such evidence shall consist of:

         (a)   a statutory declaration or certificate made by the Chairman of
               the Board, the President, a Vice-President or the Treasurer of
               the Corporation stating that any such condition precedent has
               been complied with in accordance with the terms of this
               indenture;

         (b)   in the case of a condition precedent compliance with which is, by
               the terms of this indenture made subject to review or examination
               by a solicitor, an opinion of Counsel that such condition
               precedent has been complied with in accordance with the terms of
               this indenture; and

         (c)   in the case of any such condition precedent compliance with which
               is subject to review or examination by auditors or accountants,
               an opinion or report of the Auditors of the Corporation whom the
               Trustee for such purposes hereby approves, that such condition
               precedent has been complied with in accordance with the terms of
               this indenture.

         Whenever such evidence relates to a matter other than the certification
and delivery of Debentures and the satisfaction and discharge of this indenture,
and except as otherwise specifically provided herein, such evidence may consist
of a report or opinion of any solicitor, auditor, accountant, engineer or
appraiser or any other person whose qualifications give authority to a statement
made by him, provided that if such report or opinion is furnished by a director,
officer or employee of the Corporation it shall be in the form of a statutory
declaration. Such evidence shall be, so far as appropriate, in accordance with
the immediately preceding paragraph of this Section.

         Each statutory declaration, certificate, opinion or report with respect
to compliance with a condition precedent provided for in this indenture shall
include (a) a statement by the person giving the evidence that he has read and
is familiar with those provisions of this indenture relating to the condition
precedent in question, (b) a brief statement of the nature and scope of the
examination or investigation upon which the statements or opinions contained in
such evidence are based, (c) a statement that, in the belief of the person
giving such evidence, he has made such examination or investigation as is
necessary to enable him to make the statements or give the opinions contained or
expressed therein, and (d) a statement whether in the opinion of such person the
conditions precedent in question have been complied with or satisfied.

         The Corporation shall furnish to the Trustee annually, and at any other
reasonable time if the Trustee so requires, its certificate that the Corporation
has complied with all covenants, conditions or other requirements contained in
this indenture, the non-compliance with which would, with the giving of notice
or the lapse of time, or both, or otherwise, constitute an Event of Default, or
if such is not the case, specifying the covenant, condition or other requirement
which has not been complied with and giving particulars of such non-compliance.
The Corporation shall, whenever the Trustee so requires, furnish the Trustee
with evidence by way of statutory declaration, opinion, report or certificate as
specified by the Trustee as to any action or step required or permitted to be
taken by the Corporation or as a result of any obligation imposed by this
indenture.


                                      -55-



12.6     OFFICERS' CERTIFICATE AS EVIDENCE
         ---------------------------------

         Except as otherwise specifically provided or prescribed by this
indenture, whenever in the administration of the provisions of this indenture
the Trustee shall deem it necessary or desirable that a matter be proved or
established prior to taking or omitting any action hereunder, the Trustee, if
acting in good faith, may rely upon an Officers' Certificate.

12.7     EXPERTS, ADVISERS AND AGENTS
         ----------------------------

         The Trustee may:

         (a)   in relation to these presents act on the opinion or advice of or
               information obtained from any solicitor, auditor, valuer,
               engineer, surveyor, appraiser or other expert, whether obtained
               by the Trustee or by the Corporation, or otherwise, and may
               employ such assistants as may be necessary to the proper
               discharge of its duties and may pay proper and reasonable
               compensation for all such legal and other advice or assistance as
               aforesaid; and

         (b)   employ such agents and other assistants as it may reasonably
               require for the proper discharge of its duties hereunder, and may
               pay reasonable remuneration for all services performed for it
               (and shall be entitled to receive reasonable remuneration for all
               services performed by it) in the discharge of the trusts hereof
               and compensation for all disbursements, costs and expenses made
               or incurred by it in the discharge of its duties hereunder and in
               the management of the trusts hereof. Any solicitors employed or
               consulted by the Trustee may, but need not be, solicitors for the
               Corporation.

12.8     TRUSTEE MAY DEAL IN DEBENTURES
         ------------------------------

         Subject to Section 12.2, the Trustee may, in its personal or other
capacity, buy, sell, lend upon and deal in the Debentures and generally contract
and enter into financial transactions with the Corporation or otherwise, without
being liable to account for any profits made thereby.

12.9     INVESTMENT OF MONEYS HELD BY TRUSTEE
         ------------------------------------

         Unless otherwise provided in this indenture, any moneys held by the
Trustee which under the trusts of this indenture may or ought to be invested or
which may be on deposit with the Trustee or which may be in the hands of the
Trustee may be invested and reinvested in the name or under the control of the
Trustee in securities in which, under the laws of the Province of British
Columbia, trustees are authorized to invest trust moneys, provided that such
securities are expressed to mature within two years after their purchase by the
Trustee, and unless and until the Trustee shall have declared the principal of
and interest on the Debentures to be due and payable, the Trustee shall so
invest such moneys at the request of the Corporation.

         Pending the investment of any moneys as hereinbefore provided, such
moneys may be deposited in the name of the Trustee in any chartered bank in
Canada or, with the consent of the Corporation, in the deposit department of the
Trustee or any other loan or trust company


                                      -56-



authorized to accept deposits under the laws of Canada or any province thereof
at the rate of interest then current on similar deposits.

         Unless and until the Trustee shall have declared the principal of and
interest on the Debentures to be due and payable, the Trustee shall pay over to
the Corporation all interest received by the Trustee in respect of any
investments or deposits made pursuant to the provisions of this Section.

12.10    TRUSTEE NOT ORDINARILY BOUND
         ----------------------------

         Except as otherwise specifically provided herein, the Trustee shall
not, subject to Section 12.3, be bound to give notice to any person of the
execution hereof, nor to do, observe or perform or see to the observance or
performance by the Corporation of any of the obligations herein imposed upon the
Corporation or of the covenants on the part of the Corporation herein contained,
nor in any way to supervise or interfere with the conduct of the Corporation's
business, unless the Trustee shall have been required to do so in writing by the
holders of not less then 25% of the aggregate principal amount of the Debentures
then outstanding or by any extraordinary resolution of the Debentureholders
passed in accordance with the provisions contained in Article 10, and then only
after it shall have been funded and indemnified to its satisfaction against all
actions, proceedings, claims and demands to which it may render itself liable
and all costs, charges, damages and expenses which it may incur by so doing.

12.11    TRUSTEE NOT REQUIRED TO GIVE SECURITY
         -------------------------------------

         The Trustee shall not be required to give any bond or security in
respect of the execution of the trusts and powers of this indenture or otherwise
in respect of the premises.

12.12    TRUSTEE NOT TO BE APPOINTED RECEIVER
         ------------------------------------

         The Trustee and any person related to the Trustee shall not be
appointed a receiver or receiver and manager or liquidator of all or any part of
the assets or undertaking of the Corporation.

12.13    TRUSTEE NOT BOUND TO ACT ON CORPORATION'S REQUEST
         -------------------------------------------------

         Except as in this indenture otherwise specifically provided, the
Trustee shall not be bound to act in accordance with any direction or request of
the Corporation or of the directors until a duly authenticated copy of the
instrument or resolution containing such direction or request shall have been
delivered to the Trustee, and the Trustee shall be empowered to act upon any
such copy purporting to be authenticated and believed by the Trustee to be
genuine.

12.14    CONDITIONS PRECEDENT TO TRUSTEE'S OBLIGATIONS TO ACT HEREUNDER
         --------------------------------------------------------------

         The obligation of the Trustee to commence or continue any act, action
or proceeding for the purpose of enforcing the rights of the Trustee and of the
Debentureholders hereunder shall be conditional upon the Debentureholders
furnishing, when required by notice in writing by the Trustee, sufficient funds
to commence or continue such act, action or proceeding and indemnity reasonably
satisfactory to the Trustee to protect and hold harmless the Trustee against the
costs,


                                      -57-



charges and expenses and liabilities to be incurred thereby and any loss and
damage it may suffer by reason thereof.

         None of the provisions contained in this indenture shall require the
Trustee to expend or risk its own funds or otherwise incur financial liability
in the performance of any of its duties or in the exercise of any of its rights
or powers unless funded and indemnified as aforesaid.

         The Trustee may, before commencing or at any time during the
continuance of any such act, action or proceeding, require the Debentureholders
at whose instance it is acting to deposit with the Trustee the Debentures held
by them for which Debentures the Trustee shall issue receipts.

12.15    AUTHORITY TO CARRY ON BUSINESS
         ------------------------------

         The Trustee represents to the Corporation that at the date of execution
and delivery by it of this indenture it is authorized to carry on the business
of a trust company in the Province of British Columbia but if, notwithstanding
the provisions of this Section 12.15, it ceases to be so authorized to carry on
business, the validity and enforceability of this indenture and the securities
issued hereunder shall not be affected in any manner whatsoever by reason only
of such event but the Trustee shall, within 90 days after ceasing to be
authorized to carry on the business of a trust company in the Province of
British Columbia either become so authorized or resign in the manner and with
the effect specified in Section 12.2.

12.16    ACCEPTANCE OF TRUST
         -------------------

         The Trustee hereby accepts the trusts in this indenture declared and
provided for and agrees to perform the same upon the terms and conditions herein
set forth and to hold all rights, privileges and benefits conferred hereby, by
the Security, by the Collateral Agency Agreement and by law in trust for the
various persons who shall from time to time be Debentureholders, subject to all
the terms and conditions herein set forth.

12.17    DIRECTION OF TRUSTEE'S ACTIONS BY HOLDERS
         -----------------------------------------

         If and so long, as all of the following conditions shall be met: (a)
there shall be no more than five holders of Debentures; and (b) the Trustee
shall not have received notice from any holder of Debentures of an Event of
Default hereunder; then, notwithstanding any other provision hereof to the
contrary, the Trustee shall only perform such non-discretionary duties as are
specifically set forth in this indenture but shall not be obligated to take any
other action hereunder except as may be requested from time to time in writing
by the holders of not less than 66 2/3% in principal amount of the Debentures at
the time outstanding; the making of any decision or judgment, giving of any
approval or consent, or exercise of any power, which would otherwise be within
the discretion of the Trustee under the provisions hereof to make, give or
exercise, or not to make, give or exercise, shall only be done upon the written
instructions of the holders of not less than 66 2/3% in principal amount of the
Debentures at the time outstanding; and copies of all certificates, notices,
reports and other communications given by the Corporation to the Trustee shall
be given to each Debentureholder, and the Trustee shall not be required to
examine any such certificate, notice, report or other communication or be on
notice of the contents thereof.


                                      -58-



12.18    INDEMNITY
         ---------

         Without limiting any protection or indemnity of the Trustee under any
other provision hereof, or otherwise at law, the Trustee shall be indemnified by
the Corporation from and against any and all liabilities, losses, damages,
penalties, claims, actions, suits, costs, expenses and disbursements, including
reasonable legal or adviser fees and disbursements, of whatever kind and nature
which may at any time be imposed on, incurred by or asserted against such
Trustee in connection with the performance of their duties and obligations
hereunder, other than such liabilities, losses, damages, penalties, claims,
actions, suits, costs, expenses and disbursements arising by reason of the gross
negligence or fraud of such Trustee. This provision shall survive the
resignation or removal of each Trustee, and the termination of this indenture.

12.19    ENVIRONMENTAL INDEMNITY
         -----------------------

         (a)   Subject to subsection 12.19(c), the Corporation hereby
               indemnifies the Debentureholders, the Trustee and the Collateral
               Agent, their respective directors, officers, employees, and
               agents, and all of their successors and assigns (collectively,
               the "INDEMNIFIED PARTIES") against any loss, expenses, claim,
               liability or asserted liability (including strict liability and
               including costs and expenses of abatement and remediation of
               spills or releases or releases of contaminants and including
               liabilities of the Indemnified Parties to third parties
               (including governmental agencies) in respect of bodily injuries,
               property damage, damage to or impairment of the environment or
               any other injury or damage and including liabilities of the
               Indemnified Parties to third parties for the third parties'
               foreseeable and unforeseeable consequential damages) incurred as
               a result of:

               (i)   the administration of the trust created hereby; and

               (ii)  the exercise by the Trustee of any rights or obligations
                     hereunder or by the Collateral Agent of its rights or
                     obligations under the Collateral Agency Agreement or the
                     Security;

               which result from or relate, directly or indirectly, to the
               breach or alleged breach of any environmental laws by the
               Corporation.

         (b)   For purposes of this Section 12.19, "LIABILITY" shall include (i)
               liability of an Indemnified Party for costs and expenses of
               abatement and remediation of spills and releases of contaminants,
               (ii) liability of an Indemnified Party to a third party to
               reimburse the third party for bodily injuries, property damages
               and other injuries or damages which the third party suffers,
               including (to the extent, if any, that the Indemnified party is
               liable therefor) foreseeable and unforeseeable consequential
               damages suffered by the third party, and (iii) liability of the
               Indemnified Party for damage to or impairment of the environment.

         (c)   In no event shall the Corporation be liable to indemnify an
               Indemnified Party against any loss, expense, claims, liability or
               asserted liability to the extent resulting from the gross
               negligence or wilful misconduct of the Indemnified Party.


                                      -59-



12.20    ANTI-MONEY LAUNDERING AND ANTI-TERRORIST LEGISLATION
         ----------------------------------------------------

         (a)   The Corporation hereby represents to the Trustee that any account
               to be opened by, or interest to held by, the Trustee in
               connection with this indenture, for or to the credit of such
               party, either (i) is not intended to be used by or on behalf of
               any third party; or (ii) if it is intended to be used by or on
               behalf of a third party, the Corporation will complete and
               execute forthwith a declaration, in form satisfactory to the
               Trustee, as to the particulars of such third party.

         (b)   The Trustee shall retain the right not to act and shall not be
               liable for refusing to act if, due to a lack of information or
               for any other reason whatsoever, the Trustee, in its sole
               judgement, determines that such act might cause it to be in
               non-compliance with any applicable anti-money laundering or
               anti-terrorist legislation, regulation or guideline. Further,
               should the Trustee, in its sole judgment, determine at any time
               that its acting under this indenture has resulted in its being in
               non-compliance with any applicable anti-money laundering or
               anti-terrorist legislation, regulation or guideline, then it
               shall have the right to resign on 10 days written notice to the
               Corporation, provided (i) that the Trustee's written notice shall
               describe the circumstances of such non-compliance; and (ii) that
               if such circumstances are rectified to the Trustee's satisfaction
               within such 10 day period, then such resignation shall not be
               effective.

                                   ARTICLE 13
                             SUPPLEMENTAL INDENTURES
                             -----------------------

13.1     SUPPLEMENTAL INDENTURE
         ----------------------

         From time to time the Trustee and, when authorized by a resolution of
the directors, the Corporation, may, and they shall when required by this
indenture, execute, acknowledge and deliver by their proper officers deeds,
indentures or other agreements supplemental hereto or to the Collateral Agency
Agreement, which thereafter shall form part hereof or thereof, and may direct
the Collateral Agent to execute, acknowledge and deliver by its proper officers
agreements supplemental to the Collateral Agency Agreement and the Collateral
Documents for any one or more of the following purposes:

         (a)   adding to the covenants and agreements of the Corporation herein
               or therein contained for the protection of the holders of the
               Debentures or providing for Events of Default in addition to
               those herein or therein specified;

         (b)   making such provisions not inconsistent with this indenture or
               the Collateral Agency Agreement as may be necessary or desirable
               with respect to matters or questions arising hereunder or
               thereunder, including the making of any modifications in the form
               of the Debentures which do not affect the substance thereof and
               which, in the opinion of the Trustee, it may be expedient to
               make, provided that the Trustee shall be of the opinion, based on
               advice of counsel, that such provisions and modifications will
               not be prejudicial to the interests of the Debentureholders;


                                      -60-



         (c)   evidencing the succession, or successive successions, of other
               corporations to the Corporation and the covenants of and
               obligations assumed by any such successor in accordance with the
               provisions of this indenture and the Collateral Agency Agreement;

         (d)   giving effect to any extraordinary resolution passed as provided
               in Article 10;

         (e)   making such amendments to this indenture as may be necessary to
               qualify this indenture under the United States Trust Indenture
               Act, if such qualification is necessary, provided that the
               Trustee shall be of the opinion, based on advice of counsel that
               such amendments will not be prejudicial to the interests of the
               Debentureholders; and

         (f)   for any other purpose not inconsistent with the terms of this
               indenture.

         The Trustee may also, without the consent or concurrence of the
Debentureholders, by supplemental indenture or otherwise, concur with the
Corporation in making any changes or corrections in this indenture, the
Collateral Agency Agreement or the Collateral Documents which it shall have been
advised by Counsel are required for the purpose or curing or correcting any
ambiguity or defective or inconsistent provisions or clerical omissions or
mistakes or manifest errors contained herein or in any deed or indenture
supplemental or ancillary hereto or thereto, provided that in the opinion of the
Trustee, acting on the advice of Counsel, the rights of the Trustee and of the
Debentureholders are in no way prejudiced thereby.

                                   ARTICLE 14
                            EXECUTION AND FORMAL DATE
                            -------------------------

14.1     EXECUTION
         ---------

         This indenture may be simultaneously executed in several counterparts,
each of which when so executed shall be deemed to be an original and such
counterparts together shall constitute one and the same instrument.


                                      -61-



14.2     FORMAL DATE
         -----------

         For the purpose of convenience this indenture may be referred to as
bearing formal date of October 8, 2003, irrespective of the actual date of
execution hereof.

         IN WITNESS whereof the parties hereto have executed these presents
under their respective corporate seals and the hands of their proper officers in
that behalf.


                                        AMERICAN NATURAL ENERGY
                                        CORPORATION


                                        Per:
                                             --------------------------------
                                                                             c/s


                                        Per:
                                             --------------------------------


                                        COMPUTERSHARE TRUST COMPANY
                                        OF CANADA


                                        Per:
                                             --------------------------------
                                                                             c/s


                                        Per:
                                             --------------------------------


                                      -62-



                      SCHEDULE A to the annexed Indenture dated as of the 8th
                      day of October, 2003 between AMERICAN NATURAL ENERGY
                      CORPORATION and COMPUTERSHARE TRUST COMPANY OF CANADA, as
                      Trustee.

UNLESS PERMITTED BY CANADIAN SECURITIES LEGISLATION, THE HOLDER OF THIS
DEBENTURE SHALL NOT TRADE THE DEBENTURE OR ANY PART HEREOF BEFORE [FOUR MONTHS
AND ONE DAY AFTER DATE OF ISSUE OF THE DEBENTURES].

THIS DEBENTURE AND THE SHARES ISSUABLE ON CONVERSION THEREOF HAVE NOT BEEN
REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED, OR ANY
APPLICABLE STATE SECURITIES LAW. NO INTEREST THEREIN MAY BE SOLD, DISTRIBUTED,
ASSIGNED, OFFERED, PLEDGED OR OTHERWISE TRANSFERRED OR DISPOSED OF WITHOUT (A)
AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH ACT AND ANY OTHER APPLICABLE
UNITED STATES STATE OR FEDERAL SECURITIES LAWS COVERING ANY SUCH TRANSACTION OR
(B) AN EXEMPTION FROM REGISTRATION (BASED ON RECEIPT BY THE CORPORATION OF AN
ACCEPTABLE LEGAL OPINION STATING THAT SUCH TRANSACTION IS EXEMPT FROM
REGISTRATION, IF SO REQUESTED BY THE CORPORATION) OR (C) THE CORPORATION
OTHERWISE SATISFYING ITSELF THAT SUCH TRANSACTION IS EXEMPT FROM REGISTRATION.

NO. SPECIMEN                                                   $
                                                                 ---------------

                       AMERICAN NATURAL ENERGY CORPORATION
               (organized under the laws of the State of Oklahoma)


                        8% CONVERTIBLE SECURED DEBENTURE


                             DUE SEPTEMBER 30, 2005


American Natural Energy Corporation (hereinafter referred to as the
"CORPORATION") for value received hereby promises to pay to the registered
holder hereof on September 30, 2005 (being the maturity date) or on such earlier
date as the principal amount hereof may become due in accordance with the
provisions of the Indenture hereinafter mentioned, on presentation and surrender
of this Debenture, the sum of _________________________________ Dollars in
lawful money of the United States of America at the principal office of the
Trustee in the City of Vancouver, British Columbia, and to pay interest on the
principal amount hereof at a rate of 8% per annum from the date of issue, or
from the last interest payment date on which interest has been paid or made
available for payment on the outstanding Debentures, whichever is later, at the
said place, at the holder's option, in like money, calculated and payable
quarterly in equal quarterly amounts on March 31, June 30, September 30 and
December 31 in each year (an "INTEREST PAYMENT DATE"), the first payment to fall
due on December 31, 2003, and should the Corporation at any time make default in
the payment of any principal or interest, to pay interest on the amount in
default at the same rate, in like money, at such place, and quarterly on the
same dates. Interest on this Debenture for any interest payment date (except on
maturity) will be payable to the registered holder of the Debenture at the close
of business on the date (the "RECORD DATE") which is 10 days before the interest
payment date. As interest on this Debenture becomes due, the Corporation, either
directly or through the Trustee or an agent of the Trustee (except in case of
payment at maturity or on redemption at which time payment of interest may be
made upon surrender of this Debenture), shall, at least four business days prior
to each interest payment date, forward or cause to be forwarded by prepaid post
to the registered


                                       A-1



address of the registered holder of this Debenture on the record date for such
interest payment date, or in the case of joint holders to the registered address
of whichever of such joint holders is named first in the registers referred to
hereafter, a cheque for such interest, less any tax required by law to be
deducted, payable to the order of such holder or holders and negotiable at par
at the place at which interest upon this Debenture is payable. The forwarding of
such cheque shall satisfy and discharge the liability for interest upon this
Debenture to the extent of the sum represented thereby (plus the amount of any
tax deducted as aforesaid) unless such cheque is not paid on presentation.

This Debenture is one of the 8% Convertible Secured Debentures (herein referred
to as the "DEBENTURES") in the aggregate principal amount of up to $12,000,000
in lawful money of the United States of America issued under a trust indenture
(herein referred to as the "INDENTURE") dated as of October 8, 2003 and made
between the Corporation and Computershare Trust Company of Canada, as Trustee,
to which Indenture and all instruments supplemental thereto or in implementation
thereof reference is hereby made for a description of the rights of the holders
of the said Debentures, of the Corporation and of the Trustee and of the terms
and conditions upon which the Debentures are issued and held, all to the same
effect as if the provisions of the Indenture and such instruments supplemental
thereto or in implementation thereof were herein set forth, to all of which
provisions the holder of this Debenture, by acceptance hereof, assents.

The Debentures are issuable as fully registered Debentures in denominations of
$1,000 and any integral multiples of $1,000. The Debentures of any authorized
denomination may be exchanged, as provided in the Indenture, for Debentures of
an equal aggregate principal amount in any other authorized denomination or
denominations.

This Debenture is convertible, at the option of the holder hereof, upon
surrender of this Debenture at the principal office of the Trustee in the City
of Vancouver, British Columbia at any time up to the close of business on
September 29, 2005 or on the business day immediately preceding the date
specified for redemption of this Debenture, whichever is earlier, into fully
paid and non-assessable Common Shares of the Corporation (the "COMMON SHARES"),
as constituted on October 8, 2003 (with payment of interest accrued hereon and
without adjustment for dividends on Common Shares issuable upon conversion) at a
Conversion Price of U.S.$0.45 per Common Share, all subject to the terms and
conditions and in the manner set forth in the Indenture. The Indenture makes
provision for the adjustment of the Conversion Price in certain events.

This Debenture may be redeemed at the option of the Corporation on the terms and
conditions set out in the Indenture at the redemption prices therein set out,
provided that this Debenture is not redeemable on or prior to September 30,
2004, and is not redeemable thereafter unless, among other conditions, the
Corporation shall have filed with the Trustee, on the day that notice of
redemption of this Debenture is first given, an Officers' Certificate certifying
that the weighted average price per share at which Common Shares have traded on
the TSX Venture Exchange (or elsewhere in accordance with the Indenture) during
20 consecutive trading days ended not more than 5 trading days preceding the
date on which such notice of redemption is given was at least 166 2/3% of the
Conversion Price in effect on the date of the filing of such Officers'
Certificate.

The indebtedness evidenced by this Debenture and by all other Debentures now or
hereinafter certified and delivered under the Indenture is secured pursuant to
security held by a collateral agent for the Trustee pursuant to the provisions
of a Collateral Agency Agreement dated


                                      A-2



October 8, 2003 between the Trustee and the Collateral Agent, and acknowledged
and consented to by the Corporation.

The right is reserved to the Corporation, subject to the terms and conditions
set out in the Indenture, to purchase Debentures at any time or times by tender
made available to all Debentureholders.

The principal hereof may also become or be declared due before stated maturity
on the conditions, in the manner, with the effect and at the time set forth in
the Indenture.

The Indenture contains provisions for the holding of meetings of
Debentureholders and rendering resolutions passed at such meetings and provides
that instruments in writing signed by the holders of a specified majority of
Debentures outstanding shall be binding upon all Debentureholders, subject to
the provisions of the Indenture.

This Debenture may only be transferred upon compliance with the conditions
prescribed in the Indenture, on one of the registers to be kept at the offices
of the Trustee in the City of Vancouver, British Columbia and at such other
place or places, if any, and by such other registrar or registrars, if any, as
the Corporation with the approval of the Trustee may designate, by the
registered holder hereof or his executors or administrators or other legal
representatives, or his or their attorney duly appointed by an instrument in
writing in form and execution satisfactory to the Trustee, and upon compliance
with such reasonable requirements as the Trustee or other registrar may
prescribe.

This Debenture shall be construed in accordance with the laws of the Province of
British Columbia and shall be treated in all respects as a British Columbia
contract.

This Debenture shall not become obligatory for any purpose until it shall have
been certified by or on behalf of the Trustee under the Indenture.

IN WITNESS WHEREOF AMERICAN NATURAL ENERGY CORPORATION has caused this Debenture
to be signed by the President of the Corporation as of ________________, 200__.


                                        AMERICAN NATURAL ENERGY
                                        CORPORATION


                                        Per:
                                             -----------------------------------
                                             President


                                      A-3



================================================================================
- --------------------------------------------------------------------------------


                              TRUSTEE'S CERTIFICATE

This Debenture is one of the 8% Convertible Secured Debentures, referred to in
the Indenture within mentioned.


                                        COMPUTERSHARE TRUST COMPANY
                                        OF CANADA


                                        Per:
                                             -----------------------------------


                      Date of Certification:
                                             -----------------------------------


- --------------------------------------------------------------------------------

       (No writing on this panel except by the Trustee or other Registrar)


NUMBER OF    DATE OF         PRINCIPAL    IN WHOSE NAME    SIGNATURE OF TRUSTEE
DEBENTURE    REGISTRATION    AMOUNT($)    REGISTERED        OR OTHER REGISTRAR
================================================================================

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------


                                       A-4



                                 CONVERSION FORM
                                 ---------------

TO:      AMERICAN NATURAL ENERGY CORPORATION

The undersigned registered holder of the within Debenture hereby irrevocably
elects to convert the said Debenture (or $_________ principal amount thereof)
into Common Shares of American Natural Energy Corporation in accordance with the
terms of the Indenture referred to in the said Debenture and directs that the
Common Shares issuable and deliverable upon the conversion be issued and
delivered to the person indicated below. (If Common Shares are to be issued in
the name of a person other than the holder, all requisite transfer taxes must be
tendered by the undersigned.)

*        If less than the full principal amount of the within Debenture is to be
         converted, indicate in the space provided the principal amount (which
         must be $1,000 or integral multiples thereof) to be converted.

Dated _______________                   ________________________________________
                                        (SIGNATURE OF REGISTERED HOLDER)
                                        If shares are to be issued in the name
                                        of a person other than the holder, the
                                        signature must be guaranteed by a
                                        chartered bank, a trust company, or a
                                        member of an approved signature
                                        guarantee medallion program].

Name
         -----------------------------------------------------------------------

Address
         -----------------------------------------------------------------------
      (Print name and address in which Common Shares issued on conversion
                   are to be issued, delivered and registered)


                                       A-5



                                  TRANSFER FORM
                                  -------------

FOR VALUE RECEIVED the undersigned sells, assigns and transfers unto

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                 Please print or typewrite name and address and
                       social insurance number of assignee

- --------------------------------------------------------------------------------

$_______________ principal amount of the within Debenture of American Natural
Energy Corporation and hereby irrevocably constitutes and appoints
__________________________ Attorney to transfer the said Debenture on the
registers of the 8% Convertible Secured Debentures due September 30, 2005 of the
said Corporation, with full power of substitution in the premises. It is
understood that any transfer or attempted transfer of this Debenture is invalid
and unenforceable until the Acknowledgement of Assignee in the form below has
been signed by the assignee, as a precondition to the transfer of this
Debenture.


Dated _______________                   ________________________________________
                                        (SIGNATURE OF REGISTERED HOLDER)
                                        The signature of the registered holder
                                        of the within Debenture to the foregoing
                                        assignment must be guaranteed by a
                                        chartered bank, a trust company, or a
                                        member firm of an approved signature
                                        guarantee medallion program].


                           ACKNOWLEDGEMENT OF ASSIGNEE
                           ---------------------------

The undersigned Assignee of this Debenture, or part thereof, as referred to in
the above Transfer Form hereby acknowledges that it is aware that the Debentures
are "restricted securities" as defined under Rule 144 under the U.S. Securities
Act and have not been registered under the U.S. Securities Act or the securities
laws of any State of the United States, that the Corporation has no obligation
to register any of the Debentures under the U.S. Securities Act or the
securities laws of any state of the United States, that the Debentures may not
be offered or sold in the United States unless registered in accordance with
United States federal securities laws and all applicable state securities laws
or exemptions from such requirements are available, that the Trustee will not
register any transfer of any Debenture not made pursuant to an available
exemption from the registration requirements of the U.S. Securities Act and that
the Debentures shall bear a legend to that effect. If the above transfer of the
Debenture is accompanied by an assignment of the Subscription Agreement with the
Corporation in respect of the Debenture, or any interest therein, or of any of
the rights arising thereunder, the undersigned Assignee of the Debenture agrees
to be bound by the terms and conditions of such Subscription Agreement

Dated   ______________                  ________________________________________
                                        SIGNATURE OF ASSIGNEE


                                       A-6