Document:

AGREEMENT

BETWEEN:                  TIREX CANADA R&D INC., located 3828 St-Patrick St.
                          Montreal, Quebec H4E 1A4 represented herein by its
                          president, John Threshie Jr, who is duly authorized
                          for the purposes hereof:

                          hereinafter referred to as "the Business";

AND:                      FRANCOIS LAFORTUNE, PH.D., domiciled at 5755 boul.
                          Payer, Saint-Hubert, Quebec J3Y 1K4:

                          hereinafter referred to as "the Consultant";

THE PARTIES AGREE:

PURPOSE

>>       The purpose of this agreement is to establish the terms and conditions
         of the contract between the Consultant and the Business in a spirit of
         mutual cooperation and advancement.

RESPONSIBILITIES

>>       Responsibilities will include but not be limited by the following:

         -    Assisting the Company in writing up and filing technical R&D
              project reports for current or potential funding agencies (Revenue
              Canada, SDI, Recyc-Quebec, etc.)

         -    Coordinating R&D project efforts in the developing of crumb rubber
              based applications (extrusion, thermoplastics, etc.)

         -    Assisting the Company in acquiring all necessary permits
              pertaining to its activities

         -    Representing Tirex with public agencies (e.g. government
              authorities, Recyc-Quebec in the area of scrap tire management,
              inter alia by

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              ensuring that customers of Tirex in Quebec and elsewhere are able
              to derive maximum benefits under the terms of the financial
              assistance programs in place in the regions in question

              working to facilitate supply to recyclers in Quebec, or at least
              to minimize barriers to supply (e.g. association being formed
              which may create a monopoly that could inhibit access to tires by
              new recyclers)

         -    conduct strategic technological monitoring in the field of scrap
              tires, both in North America and elsewhere in the world, dealing
              inter alia with technologies for transforming tires into crumb
              rubber, both cryogenically and at ambient temperature, new
              applications, leading trends concerning the types of crumb rubber
              in demand, chemical or radiation surface treatment methods to
              devulcanize rubber, emerging alternative methods, new markets for
              crumb rubber, combinations with plastics or with other polymer
              resins

         -    performing any other duties that the Business may consider
              appropriate

FINANCIAL TERMS AND CONDITIONS

>>       The Consultant's salary will be 260 US$ per working day (min. 7 hrs per
         day)

>>       Fee structure:

         May 15, 2000 - December 31, 2000: 100% TXMC stock @ 65% of market value

         January 1, 2001 and then on:      50% monthly lump sum fees
                                           50% TXMC stock @ 65% of market value

         Note: Stock will be acquired through option issuance or will be
         registered ("S8")

>>       Financial terms and conditions will reviewed January 1, 2001

>>       The Consultant shall be reimbursed on a monthly basis by the Business
         for expenses incurred by him. Usual traveling expenses shall include
         living and rental expenses, where applicable, and gas, for which the
         Consultant shall be reimbursed at the rate of $0.34/km

>>       Conference, book + periodical subscription expenses (amounts to be
         discussed).

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<PAGE>

PERSONAL PROJECTS

>>       Possibility of remaining or getting involved in personal projects that
         will not adversely affect Tirex' competitive position or infringe
         Tirex' intellectual property rights; in addition, F. Lafortune's
         involvement in those personal projects should not interfere with other
         Tirex' current assignments.

RESPONSIBILITIES OF THE CONSULTANT

>>       The Consultant undertakes to perform his duties diligently and in
         accordance with industry standards and, where applicable, by engaging
         qualified personnel.

>>       The Consultant undertakes not to disclose any information of a
         confidential nature that might adversely affect the Business's
         competitive position or infringe the Business's intellectual property
         rights.

>>       In the event that a contract proposal is developed by the Consultant
         with a firm other than the Business in the field of scrap tires, the
         Consultant will first submit the proposal to the Business for approval.

CONTRACT DOCUMENTS

>>       This agreement and any other document referred to herein, and any duly
         agreed amendment to the said documents, shall comprise the complete
         agreement between the parties and shall be binding on them. Any oral
         agreement which is not set out herein shall be deemed to be void and of
         no effect, and any amendment hereto shall be made in writing.

PLACE OF THE AGREEMENT

>>       For the purposes hereof and of the performance of this agreement, it
         shall be deemed to have been made and entered into in the City of
         Montreal, in the Judicial District of Montreal, in the province of
         Quebec, and it shall be subject to the laws of Quebec.

COMING INTO FORCE AND TERM OF THE CONTRACT

>>       This agreement shall come into force when it has been signed by all the
         parties.

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>>       This agreement shall be valid for a period of one year. The parties may
         agree to amendments to this agreement, by mutual agreement. Unless
         notice of non-renewal is given two months before the expiry of this
         agreement, it shall be renewed automatically.

>>       If it becomes necessary, for valid reason, for the Business to
         terminate this contract, the Consultant shall receive compensation
         equivalent to two months' fees.

IN WITNESS WHEREOF, THE PARTIES HAVE SIGNED THE ORIGINALS OF THIS AGREEMENT.

                                                     THE BUSINESS

                                                     Per:

                                                     this

                                                     THE CONSULTANT

                                                     Per:

                                       4AGREEMENT

         WHEREAS, The Tirex Corporation (the "Company") and Lawrence Culliford
(the "Consultant") believe it is in their mutual best interest to clarify
certain rights and obligations concerning the Consultant's assistance to the
Company in its efforts to market its technology known as the "TCS Plants"

         IT IS HEREBY AGREED, that

         1.   Consultant shall provide marketing data regarding the European
Countries and shall provide recommendations as to pricing, potential
manufacturing opportunities and other relevant information as required by the
Company.

         2.   The Consultant shall continue to refer potential customers to the
Company and shall consult with the Company regarding marketing techniques and
methods in the European market.

         3.   Consultant shall devote such time as determined by the President
of the Company.

         4.   The Company shall issue 200,000 shares of the Company's Common
Stock to the Consultant for his past efforts and as an incentive for continuing
his to work with and on behalf of the Company.

         5.   Any additional stock issuance, commission, salary or other
compensation to be paid to the consultant shall be negotiated separately when
the parties agree that circumstances are such that it is in the best interest of
the parties to do so.

         6.   The effective date of this Agreement shall be August 28, 2000.

                                             THE TIREX CORPORATION

                                             BY: /s/ LAWRENCE CULLIFORD
                                                -------------------------------
                                                President

                                                -------------------------------
                                                LAWRENCE CULLIFORD

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                                                                    EXHIBIT 10.2

                                OTC AMERICA, INC.

                             SUBSCRIPTION AGREEMENT

OTC America, Inc.
Randy L. Phillips                         Total Shares Subscribed For: 2,000,000
600 17th Street, Suite 950 South
Denver, CO 80202

Dear Mr. Phillips;

         The undersigned hereby subscribes to purchase 2,000,000 Shares of
$.0001 par value common stock (the "Securities") of OTC AMERICA, INC.
("Company") in exchange for 2,500,000 Shares of Series A Preferred Stock which
are to be canceled upon issuance of the Securities purchased hereby.

         1. Purchase. Subject to the terms and conditions hereof, the
undersigned hereby irrevocably agrees to exchange for the Securities set forth
on the signature page hereof and tenders herewith the number of shares of Series
A Preferred Stock set forth on the signature page hereof.

         2. Disclosure Documents. The undersigned acknowledges receipt of the
Company's 10KSB and 10QSB as filed with the Securities and Exchange Commission
and has read these disclosure documents which are incorporated herein by this
reference.

         3. Representations and Warranties. The undersigned hereby makes the
following representations and warranties to the Company:

         (a)   The undersigned is the sole and true party in interest and is not
               purchasing for the benefit of any other person;

         (b)   The undersigned has consulted with the advisor(s) named on the
               signature page, if any (such advisor(s) are hereinafter
               collectively referred to as the "Investor Representative");

         (c)   The undersigned and/or the Investor Representative have read and
               analyzed, are familiar with and have retained copies of this
               Subscription Agreement and other related documents, including all
               of the documents incorporated by reference, copies of which were
               delivered to me/us. The undersigned understands that all books,
               records and documents of the Company relating to this investment
               have been and remain available for inspection by the undersigned
               and/or the Investor Representative upon reasonable notice. The
               undersigned confirms that all documents requested by the
               undersigned and/or the Investor Representative have been made
               available, and

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               that the undersigned has been supplied with all of the additional
               information concerning this investment that has been requested.
               In making a decision to purchase the Securities, the undersigned
               has relied exclusively upon information provided by the Company
               in writing or found in the books, records or documents of the
               Company;

         (d)   The undersigned and/or Investor Representative have such
               knowledge and experience in financial and business matters that
               they are capable of an evaluation of the merits and risks of this
               investment;

         (e)   The undersigned and the Investor Representative, if any, are
               aware that an investment in the Company is highly speculative and
               subject to substantial risks. The undesigned is capable of
               bearing the high degree of economic risk and burdens of this
               venture, including, but not limited to, the possibility of a
               complete loss, the lack of a public market and limited
               transferability of the Securities, which make the liquidation of
               this investment impossible for the indefinite future;

         (f)   The offer to exchange the Securities was directly communicated to
               the undersigned and the Investor Representative by such a manner
               that the undersigned was able to ask questions of and receive
               answers from the Company or a person acting on their behalf
               concerning the terms and conditions of this transaction. At no
               time was the undersigned or the Investor Representative presented
               with or solicited by or through any leaflet, public promotional
               meeting, television advertisement or any other form of general
               advertising otherwise than in connection and concurrently with
               such communicated offer;

         (g)   The undersigned, if a corporation, partnership, trust or other
               entity, is authorized and duly empowered to purchase and hold the
               Securities, has its principal place of business at the address
               set forth on the signature page and has not been formed for the
               specific purpose of acquiring the Securities;

         (h)   The Securities are being acquired solely for the undersigned's
               own account, for investment, and are not being purchased with a
               view to resale, distribution, subdivision or fractionalization
               thereof;

         (i)   The undersigned understands that the Securities have not been
               registered under the Securities Act of 1933, as amended (the
               "Act"), or any state securities laws, in reliance upon exemptions
               from registration for non-public offerings. The undersigned
               understands that the Securities or any interest therein may not
               be, and agrees that the Securities or any interest therein, will
               not be resold or otherwise disposed of by the undersigned unless
               the Securities are subsequently registered under the Act and
               under appropriate state securities laws or unless the Company
               receives an opinion of counsel satisfactory to it that an
               exemption from registration is available;

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         (j)   The undersigned and the Investor Representative have been
               informed of and understand the following:

               (1)  The Company, as it is being restructured, has only a limited
                    financial or operating history;

               (2)  There are substantial restrictions on the transferability of
                    the Securities;

               (3)  No federal or state agency has made any finding or
                    determination as to the fairness for public investment, nor
                    any recommendation nor endorsement, of the Securities.

         (k)   None of the following information has ever been represented,
               guaranteed or warranted to either the undersigned or the Investor
               Representative, expressly or by implication by any broker, the
               Company or agent or employee of the foregoing, or by any other
               person;

               (1)  The approximate or exact length of time that the undersigned
                    will be required to remain an investor in the Company;

               (2)  The percentage of profit and/or amount of type of
                    consideration, profit or loss to be realized, if any, as a
                    result of an investment in the Company;

               (3)  That the past performance or experience of the management or
                    associates, agents, affiliates or employees or any other
                    person will in any way indicate or predict economic results
                    in connection with the operation of the Company of the
                    return on the investment.

         (l)   The information set forth in that certain Accredited Investor
               Declaration executed by the undersigned is true, correct and
               complete;

         (m)   The undersigned has not distributed any information relating to
               this investment to anyone other than the Investor Representative,
               if any, and no other person except the Investor Representative
               has used this information;

         (n)   The undersigned hereby agrees to indemnify the management of the
               Company and holds the Company harmless from and against any and
               all liability, damage, cost or expense incurred on account of or
               arising out of:

               (1)  Any inaccuracy in the declarations, representations and
                    warranties hereinabove set forth;

               (2)  The disposition of any Securities of the undersigned,
                    contrary to the foregoing declarations, representations and
                    warranties;

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               (3)  Any action, suit or proceeding based upon:

                    (i)  the claim that said declarations, representations or
                         warranties were inaccurate or misleading or otherwise
                         cause for obtaining damages or redress from the Company
                         or its Management; or

                    (ii) the disposition of any of the Securities or any part
                         thereof.

         4. Transferability. The undersigned agrees not to transfer or assign
the obligations or duties contained in this Subscription Agreement or any of the
undersigned's interest herein.

         5. Regulation D. Notwithstanding anything herein to the contrary, every
person or entity who, in addition to or in lieu of the undersigned, is deemed to
be a "purchaser" pursuant to Regulation D promulgated under the Securities Act
of 1933 or any state law, does hereby make and join in making all of the
covenants, representations and warranties made by the undersigned.

         6. Investor Representative(s) Relationship with the Company or its
Management. The undersigned acknowledges that the undersigned has been advised
that the following relationship exists by and between the Investor
Representative named below (including the Investor Representative's affiliates)
and the management, the Company or an affiliate of either of them:

            Not Applicable.

         7. Acceptance. Execution and delivery of this Subscription Agreement
and tender of the payment in accordance with Paragraph 1 above shall constitute
an irrevocable offer to purchase the Securities indicated, which offer may be
accepted or rejected by the Company in their sole discretion for any cause or
for no cause. Acceptance of this offer by the Company shall be indicated by the
execution hereof by management.

         8. Binding Agreement. The undersigned agrees that the undersigned may
not cancel, terminate or revoke this Subscription Agreement or any agreement of
the undersigned made hereunder, and that this Subscription Agreement shall
survive the death or disability of the undersigned and shall be binding upon the
heirs, successors, assigns, executors, administrators, guardians, conservators
or personal representatives of the undersigned.

         9. Incorporation by Reference. The identities of any Investor
Representative of the undersigned and the statement of the number of Securities
subscribed and related information set forth on the signature page are
incorporated as integral terms of this Agreement.

         10. Investment Documents. The Company commits by accepting your
subscription to deliver to you not later than 30 days from the date of closing
certificates representing the number of shares of the Securities subscribed for
and which have been accepted by the Company.

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         IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement on the Date set forth on the signature page.

         The undersigned desires to take title in the Securities as follows
(check one):

          _____(a)  Individual (one signature required on Page 6);

          _____(b)  Husband and Wife as community property (one signature
                    required on Page 6 if interest held in one name, i.e.,
                    managing spouse; two signatures required on Page 6 if
                    interest held in both names);

          _____(c)  Joint Tenants with right of survivorship (both parties
                    must sign on Page 6)

          _____(d)  Tenants in common (both parties must sign on Page 6);

          _____(e)  Trust (Trustee(s) must sign on Page 8);

          _____(f)  Partnership (general partner(s) must sign on Page 10);

          _____(g)  Corporation (authorized office must sign on Page 12).

         The exact spelling of names(s) under which title to the Securities
shall be taken is (please print): Dixon Family Remainder Trust

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                             SUBSCRIPTION AGREEMENT

                                 SIGNATURE PAGE
                               FOR TRUST INVESTORS

Total Shares subscribed:        #2,000,000         Exchange for 2,500,000 Shares
                                                   of Series A Preferred Stock
                                                   of OTC America, Inc.

Name(s) of Investor Representatives

------------------------------                    ------------------------------
Name                                                          Address

------------------------------                    ------------------------------
Name                                                          Address

------------------------------                    ------------------------------
Name                                                          Address

Dixon Family Remainder Trust
--------------------------------------------------------------------------------
Name of Trust (Please print or type)

Robert C. Dixon
--------------------------------------------------------------------------------
Name of Trustee (Please print or type)

        12/24/96
--------------------------------------------------------------------------------
Date Trust was formed

By /s/ Robert C. Dixon
  -----------------------------
   Robert C. Dixon, Trustee

Taxpayer Identification Number:
                               ---------------

Trustee's Address:         PO Box 100
                           Palmer Lake, CO 80133
                           Attention: Robert C. Dixon

Executed at 2:45 p.m. Colorado, this 10th day of June, 2000.

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SUBSCRIPTION ACCEPTED:

OTC AMERICA, INC.

 /s/ Randy L. Phillips
---------------------------
By:    Randy L. Phillips,
       President
Date:  June 16, 2000

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