Document:

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                                                                   Exhibit 10.16

                                                                 EXECUTABLE COPY

                           STOCK TRANSFER AGREEMENT*

            This Stock Transfer Agreement (the "AGREEMENT") dated as of this
fourteenth day of July, 2000 (the "Effective Date"), is entered into by and
among Vastera, Inc., a Delaware corporation ("VASTERA"), Vastera Solution
Services Corporation, a Delaware corporation and a wholly-owned subsidiary of
Vastera ("SSC") and Ford Motor Company, a Delaware corporation ("FORD").

            WHEREAS, Vastera and Ford have been discussing certain arrangements
regarding Ford's and Vastera's import/export customs service operations;

            WHEREAS, in connection with such discussions, SSC and Ford are, as
of the date hereof, executing the Related Agreements; and

            WHEREAS, Vastera has agreed to issue to SSC certain of its shares of
common stock, par value $0.01 per share (the "COMMON STOCK") and SSC has agreed
to transfer such shares to Ford as consideration for the execution and delivery
by Ford of this Agreement and the Related Agreements;

            NOW, THEREFORE, in consideration of the foregoing premises, the
mutual promises and covenants contained herein, and for other good and valuable
consideration, the receipt and sufficiency of which are here acknowledged, the
parties hereto agree as follows:

      1.    Transfer of the Common Stock.

            1.1.  Agreement of Transfer. (a) Subject to the terms and conditions
set forth in this Agreement and upon the basis of the representations,
warranties and covenants contained in this Agreement, Ford agrees to acquire
from SSC and SSC agrees to transfer to Ford at Closing, free and clear of any
Encumbrances whatsoever, the greater of (i) 5,333,333 shares of the Common Stock
of Vastera and (ii) 20% of the Common Stock of Vastera calculated on a fully
diluted basis as of the Closing. The shares of Common Stock to be purchased by
Ford are herein referred to as the "SHARES."

                  (b)   In exchange for the Shares, Ford shall execute and
delivery to SSC the Related Agreements.

                  (c)   The parties to the Additional Agreements shall execute
and deliver the Additional Agreements.

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* Portions of this document have been omitted, with the precise position of
these omissions marked with an asterisk, pursuant to a request for confidential
treatment and such omitted portions have been filed separately with the U.S.
Securities and Exchange Commission.

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            1.2   Closing; Delivery of Common Stock.

                  (a)   The closing (the "CLOSING") for the acquisition and
transfer of the Shares shall take place within five (5) business days following
satisfaction of the conditions to Closing set forth in this Agreement or the
written waiver thereof by the party entitled to the benefit of such conditions.

                  (b)   At the Closing and subject to the terms and conditions
herein, SSC shall deliver to Ford one or more certificates representing the
number of Shares of Common Stock to be received by Ford which Ford is purchasing
from SSC upon delivery to SSC of the Related Agreements, fully executed by Ford.

      2.    Conditions of SSC's Obligations at Closing.

      The obligation of SSC to transfer the Shares to Ford is subject to the
satisfaction, on or before the Closing, of the following conditions unless any
such conditions are waived in writing by SSC:

      2.1   Related Agreements and Additional Agreements. Ford shall have
delivered to SSC the Related Agreements and the Additional Agreements that have
been fully executed by Ford.

      2.2.  Representations and Warranties True at Closing. The representations
and warranties made by Ford in Section 7 of this Agreement shall be true,
complete and correct in all material respects on and as of the Closing with the
same effect as though such representations and warranties had been made on and
as of the date of this Agreement (except in the case of any representation or
warranty that by its terms is made solely as of a specific date, which need be
accurate only as of such date).

      2.3.  Covenant Compliance. Ford shall have performed or complied with in
all material respects their agreements and covenants contained in this Agreement
and the Related Agreements to be performed or complied with at or prior to the
Closing.

      2.4   HSR Act. Any waiting period applicable to the purchase and sale of
the Shares under the HSR Act shall have terminated or expired.

      2.5   No Adverse Change. On the Closing Date, the Business shall not have
been or then be materially adversely affected in any way as a result of any
casualty or disaster, accident, labor dispute, exercise of the power of eminent
domain or other governmental act or any other fortuitous event, act of God or
the public enemy, nor shall have there occurred any material adverse change in
the Business.

      2.6   Litigation. No suit, action or other proceeding shall be pending or
threatened before any court or governmental agency seeking to restrain, prohibit
or to obtain damages or other relief in connection with this Agreement or the
Related

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Agreements or the consummation of the transactions contemplated hereby or
thereby and there shall have been no investigation or inquiry made or commenced
by any governmental agency in connection with this Agreement or the Related
Agreements or the transactions contemplated by hereby or thereby.

      2.7   Business Combination Accounting Treatment. Vastera shall have
received written approval or concurrence from the SEC of its treatment of the
transaction contemplated hereby and the transactions contemplated by the Related
Agreements as a business combination applying the purchase method of accounting
under GAAP. This condition shall be deemed waived by Vastera in the event that
no such written approval or concurrence has been received by Vastera within
sixty (60) days of the Effective Date.

      3.    Conditions of Ford's Obligations at Closing.

      The obligation of Ford to acquire the Shares is, at its option, subject to
the satisfaction, at Closing, of the following conditions unless any such
conditions are waived in writing by Ford:

      3.1   Related Agreements and Additional Agreements. SSC shall have
delivered to Ford the Related Agreements and the Additional Agreements that have
been fully executed bythe parties to such Related Agreements and Additional
Agreements other than Ford.

      3.2   Representations and Warranties True at Closing. The representations
and warranties made by SSC and by Vastera in Section 6 of this Agreement shall
be true, complete and correct in all material respects on and as of the Closing
with the same effect as though such representations and warranties had been made
on and as of such date (except in the case of any representation or warranty
that by its terms is made solely as of a specific date, which need be accurate
only as of such date).

      3.3   Covenant Compliance. SSC and Vastera shall have performed or
complied with in all material respects their agreements and covenants contained
in this Agreement and the Related Agreements to be performed or complied with at
or prior to Closing.

      3.4   Corporate Proceedings. All corporate and other proceedings required
to be taken by SSC or Vastera in connection with the transactions contemplated
by this Agreement and the Related Agreements and all documents incident thereto
shall be satisfactory in form and substance to Ford and Ford shall have received
all such counterpart originals or certified or other copies of such documents as
it shall reasonably request.

      3.5   Secretary's Certificate. SSC shall have delivered to Ford copies of
each of the following, in each case certified as of the Closing Date by the
Secretary of SSC all resolutions of SSC's board of directors authorizing the
execution, delivery and

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performance of this Agreement and the Related Agreements and the transfer and
delivery of the Shares and a certification that all such resolutions are in full
force and effect.

      3.6   Receipt of Certificates. SSC shall have delivered to Ford
certificates representing the Shares endorsed in blank or with accompanying
stock powers duly signed, and such other instruments or documents as Ford shall
reasonably request to transfer good and marketable title to all of the Shares in
Ford free, clear and discharged of all Encumbrances.

      3.7   HSR Act. Any waiting period applicable to the purchase and sale of
the Shares under the HSR Act shall have terminated or expired.

      3.8   No Adverse Change. On the Closing Date, the business and properties
of Vastera shall not have been or then be materially adversely affected in any
way as a result of any casualty or disaster, accident, labor dispute, exercise
of the power of eminent domain or other governmental act or any other fortuitous
event, act of God or the public enemy, nor shall have there occurred any
material adverse change in the business, financial position, or results of
operations of Vastera.

      3.9   Litigation. No suit, action or other proceeding shall be pending or
threatened before any court or governmental agency seeking to restrain, prohibit
or to obtain damages or other relief in connection with this Agreement or the
Related Agreements or the consummation of the transactions contemplated hereby
or thereby and to the knowledge of Vastera and SSC there shall have been no
investigation or inquiry made or commenced by any governmental agency in
connection with this Agreement or Related Agreements or the transactions
contemplated hereby or thereby.

      3.10  Opinion of Counsel. Ford shall have been furnished with an opinion
of counsel to Vastera and SSC dated as of the Closing Date with respect to
certain matters of Delaware law, in form and substance reasonably satisfactory
to Ford.

      3.11  Business Combination Accounting Treatment. Vastera shall have
received written approval or concurrence from the SEC of its treatment of the
transaction contemplated hereby and the transactions contemplated by the Related
Agreements as a business combination applying the purchase method of accounting
under GAAP. This condition shall be deemed waived by Ford in the event that no
such written approval or concurrence has been received by Vastera within sixty
(60) days of the Effective Date.

      All documents referred to in this Section 3 to be executed and delivered
to Ford shall be reasonably satisfactory in form and substance to Ford.

      4.    Covenants of Ford.

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            4.1   Limitation on Acquiring Additional Stock. (a) Except as
otherwise provided in this Agreement, Ford agrees that from the closing date
of the IPO until July 1, 2004 (the "Market Standstill Period") under no
circumstance will it acquire additional shares of Vastera Common Stock if
such acquisition would cause the total number of shares held by Ford to
exceed twenty-seven and one half percent (27.5%) of Vastera's issued and
outstanding Common Stock (the "Market Standstill Percentage"), unless Ford
first receives the written consent of Vastera's Board of Directors; provided
that this obligation shall not apply to the acquisition by Ford of any shares
of Vastera common stock obtained pursuant to any dividend in kind
distribution or any other distribution or transaction which does not require
the payment of consideration by Ford.

            (b) If Ford breaches its market standstill obligation contained
in subsection 4.1(a) and as a result of such breach, Ford's holdings of
Vastera issued and outstanding Common Stock exceeds twenty-seven and one half
percent (27.5%) of the issued and outstanding Common Stock of Vastera but
does not exceed thirty percent (30.0%) of the same, then Vastera will have the
right but not the obligation to purchase such number of shares of Vastera
Common Stock held by Ford as will reduce Ford's ownership interest to
twenty-seven and one half percent (27.5%) of the then outstanding shares of
Vastera Common Stock (taking such purchase into effect). The price per share
to be paid by Vastera any time it exercises its purchase right hereunder
shall be the lesser of (i) the price at which Vastera first sells shares to
the public in connection with its IPO, as contained in Vastera's final
prospectus or (ii) the lowest price per share paid by Ford in any open market
or private sales transaction.

            (c) If Ford breaches its market standstill obligation contained
in subsection 4.1(a) and as a result of such breach, Ford's holdings of
Vastera issued and outstanding Common Stock exceeds thirty percent (30.0%) of
the issued and outstanding Common Stock of Vastera, then Vastera shall have
the right but not the obligation to purchase such number of shares of Vastera
Common Stock held by Ford as will reduce Ford's ownership interest to
twenty-five percent (25.0%) of the then outstanding shares of Vastera Common
Stock (taking such purchase into effect). The price per share to be paid by
Vastera any time it exercises its purchase right hereunder shall be the
lesser of (i) the price at which Vastera first sells shares to the public in
connection with its IPO, as contained in Vastera's final prospectus or (ii)
the lowest price per share paid by Ford in any open market or private sales
transaction.

            (d) Notwithstanding the market standstill provisions contained in
subsection 4.1(a) to the contrary, Vastera acknowledges that if, during the term
of the Market Standstill Period: (i) Vastera enters into an agreement with a
third party permitting such third party to acquire an ownership percentage that
exceeds Ford's Market Standstill Percentage, Ford's Market Standstill Percentage
will immediately be adjusted upward to equal that of such third party; and (ii)
if any third party, by way of direct purchase from Vastera, open market purchase
or any combination thereof acquires an ownership percentage that exceeds Ford's
Market Standstill Percentage, the terms and conditions of subsection 4.1(a)
shall immediately terminate and be of no further force or effect. In addition,
if Vastera breaches the terms and conditions of Related Agreements, the terms
and conditions of subsection 4.1(a) shall immediately terminate and be of no
further force or effect.

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            4.2   Limitation on Sale of Shares. For so long as Ford holds at
least 10% of the Common Stock on a fully diluted basis, Ford will have the
right to sell the Shares pursuant to a registration statement only in
accordance with the following schedule: (i) up to 10% of the initial number
of Shares acquired pursuant to this Agreement (the "INITIAL SHARES") on or
after six (6) months following the closing date of the IPO ; (ii) up to 20%
of the Initial Shares on or after twelve (12) months following the closing
date of the IPO; (iii) up to 70% of the Initial Shares on or after
twenty-four (24) months following closing date of the IPO; (iv) up to 85% of
the Initial Shares on or after thirty-six (36) months following closing date
of the IPO; (v) no limitation on or after forty-eight (48) months following
the closing date of the IPO. The number of Shares that can be sold shall be
adjusted for any stock splits, stock dividends or other events affecting the
capitalization of Vastera.

            4.3.  Termination of Market Standstill and Limitations on Ford
Sales. If either (i) Vastera postpones or otherwise delays proceeding with its
IPO beyond the period ending 90 days after the Effective Date, and the reason or
reasons underlying Vastera's decision to postpone proceeding with such IPO are
not reasonably based upon market conditions and factors, or (ii) Vastera has not
consummated the initial sale of shares of its Common Stock pursuant to its IPO
within 18 months of the Effective Date (regardless of market conditions), then
the terms and conditions contained in clauses (iv) and (v) of subsection 4.2
shall terminate and Ford shall be entitled to sell 100% of the Initial Shares at
anytime following the second anniversary of the closing date of the IPO;
provided however, that if following termination of the terms and conditions of
clauses (iv) and (v) pursuant to this section 4.3(a), Ford desires to increase
its ownership percentage in Vastera above the Market Standstill Percentage then
in effect, then any offer by Ford to purchase issued and outstanding shares of
Vastera common stock must be extended to all of Vastera's stockholders that hold
issued and outstanding shares of Vastera common stock. If Ford does not extend
such offer to all such stockholders, then Ford shall remain bound by the terms
and conditions of Section 4.1.

            4.4.  Survival. The covenants contained in Subsections 4.1 and 4.2
shall survive the Closing.

            4.5   Breach of Representations and Warranties. Ford shall not take
any action that would breach or cause to be inaccurate any of the
representations and warranties set forth in Section 7. Promptly after becoming
aware of the occurrence of or the pending or threatened occurrence of any event
that would cause or constitute such a breach or inaccuracy, Ford shall give
detailed written notice thereof to Vastera and SSC and shall use its diligent
efforts to prevent or remedy such breach or inaccuracy promptly.

      5.    Covenants of SSC and Vastera.

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            5.1.  Observer Rights. Upon the execution of this Agreement, Ford
shall have the right to designate one representative (the "FORD OBSERVER") who
shall have the right to (i) attend each meeting of the Board of Directors of
Vastera, (ii) receive all notices of the time and place of any such meeting in
the same manner and at the same time as notice is sent to the directors or
committee members and (iii) receive copies of all notices, reports, minutes,
consents and other documents at the time and in the manner as they are provided
to the Board of Directors of Vastera; provided however, such representative
shall have no right to call a vote, prevent a vote, or vote on matters presented
or discussed at any meetings of the Board of Directors of Vastera. The right of
Ford to designate the Ford Observer shall terminate in the event that Ford's
share of Vastera Common Stock is less than * of Vastera's total equity on a
fully diluted basis.

            5.2   Survival. The covenants contained in Subsection 5.1 shall
survive the Closing.

            5.3   Breach of Representations and Warranties. Vastera shall not
take any action that would breach or cause to be inaccurate any of the
representations and warranties set forth in Section 6. Promptly after becoming
aware of the occurrence of or the pending or threatened occurrence of any event
that would cause or constitute such a breach or inaccuracy, Vastera shall give
detailed written notice thereof to Ford and shall use its diligent efforts to
prevent or remedy such breach or inaccuracy promptly.

      6.    Representations and Warranties of Vastera and SSC. Vastera and SSC
each hereby represents and warrants to Ford as follows, except as set forth on
the attached disclosure schedules, that:

            6.1   Organization. Vastera and each subsidiary is a corporation
duly organized, validly existing, and in good standing under the laws of the
State of Delaware. Vastera and each subsidiary is qualified and authorized to
transact business and is in good standing as a foreign corporation in each
jurisdiction in which the nature of its business or properties requires it to be
so qualified, the failure of which must have a material adverse effect on
Vastera to constitute a breach of this representation.

            6.2   Authorization. Each of Vastera and SSC has full corporate
power and authority to enter into this Agreement and the Related Agreements to
which it is a party, to perform its obligations hereunder and thereunder, and to
consummate the transactions contemplated hereby and thereby. Vastera and SSC
each has taken all necessary and appropriate corporate action with respect to
the execution and delivery of this Agreement and the Related Agreements. No
other corporate proceedings on the part of either Vastera or SSC are necessary
to authorize this Agreement or the Related Agreements or to consummate the
transactions so contemplated hereby and thereby, including approval by any
creditors of Vastera or SSC. This Agreement and each Related Agreement
constitutes valid and binding obligations of Vastera and SSC (to the

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* This portion of the document has been omitted pursuant to a request for
confidential treatment and such portion has been filed separately with the U.S.
Securities and Exchange Commission.

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extent either is a party thereto), enforceable in accordance with its respective
terms except as limited by applicable bankruptcy, insolvency, moratorium,
reorganization, or other laws affecting creditors' rights and remedies
generally.

            6.3   Subsidiaries. Except as set forth in the attached Schedule
6.3, Vastera has no subsidiaries. Vastera does not (i) own of record or
beneficially, directly or indirectly, (A) any shares of capital stock or
securities convertible into capital stock of any other corporation or (B) any
participating interest in any partnership, joint venture or other non-corporate
business enterprise or (ii) control, directly or indirectly, any other entity.

            6.4   Capitalization. (a) The authorized capital stock of Vastera
(immediately prior to the Closing) will consist of 29,197,589 shares of capital
stock, consisting of: (i) 20,000,000 shares of Common Stock, and (ii) 9,197,589
shares of preferred stock, $.01 par value per share (the "PREFERRED STOCK"). Of
the 20,000,000 authorized shares of Common Stock, 4,421,794 shares are issued
and outstanding. The 9,197,589 shares of Preferred Stock are designated by
series and number consisting of: (i) 807,000 shares of Series A Preferred Stock,
of which 800,000 shares are issued and outstanding and 7,000 shares are reserved
for issuance upon exercise of an outstanding warrant; (ii) 173,000 shares of
Series B Preferred Stock, of which 104,208 shares are issued and outstanding and
4,511 shares are reserved for issuance upon exercise of certain warrants; (iii)
2,329,259 shares of Series C Preferred Stock, of which 2,310,813 shares are
issued and outstanding and 18,446 shares are reserved for issuance upon exercise
of certain warrants; (iv) 405,488 shares of Series C-1 Preferred Stock, of which
357,011 shares are issued and outstanding; (v) 3,004,512 shares of Series D
Preferred Stock, of which 2,973,749 shares are issued and outstanding and 30,763
shares are reserved for issuance upon exercise of certain warrants; (vi) 631,608
shares of Series D-1 Preferred Stock, of which 196,980 shares are issued and
outstanding and 385,505 shares are reserved for issuance upon exercise of
certain warrants; and (vii) 1,846,722 shares of Series E Preferred Stock, of
which 1,569,577 shares are issued and outstanding. All of the issued and
outstanding shares of Common Stock and Preferred Stock have been duly authorized
and validly issued and are fully paid and nonassessable. Except as set forth on
Schedule 6.4 or provided in this Agreement or in the Certificate of
Incorporation, (i) no subscription, warrant, option, convertible security or
other right (contingent or otherwise) to purchase or acquire any shares of
capital stock of Vastera is authorized or outstanding, (ii) there is no
commitment of Vastera to issue any subscription, warrant, option, convertible
security or other such right or to issue or distribute to holders of any shares
of its capital stock any evidences of indebtedness or assets of Vastera, and
(iii) Vastera has no obligation (contingent or otherwise) to purchase, redeem or
otherwise acquire any shares of its capital stock or any interest therein or to
pay any dividend or make any other distribution in respect thereof. Except as
set forth on Schedule 6.4, as provided in the Second Amended and Restated
Investors' Rights Agreement dated as of November 24, 1998, as amended from time
to time (the "INVESTORS' RIGHTS AGREEMENT") attached hereto as Exhibit A or as
provided in this Agreement or in the Certificate of Incorporation, no person or
entity is entitled to (i) any preemptive or similar right with respect to the

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issuance of any capital stock of Vastera or (ii) any rights with respect to the
registration of any capital stock of Vastera under the Securities Act of 1933,
as amended (the "SECURITIES ACT"). All of the issued and outstanding shares of
Common Stock and Preferred Stock have been offered, issued and sold by Vastera
in compliance with applicable Federal and state securities laws. To the best of
Vastera's knowledge, other than as set forth in the Second Amended and Restated
Right of First Refusal and Co-Sale Agreement, dated as of November 24, 1998, as
amended from time to time (the "CO-SALE AGREEMENT") attached hereto as Exhibit B
no stockholder of Vastera has granted options or other rights to purchase any
shares of Common Stock from such stockholder.

            (b)   As of the Closing Date, after giving effect to the Closing,
Ford shall be the record owner of the greater of (i) 5,333,333 shares of the
Common Stock of Vastera and (ii) 20% of the Common Stock of Vastera calculated
on a fully diluted basis as of the Closing. Exhibit I sets forth those Persons
who are or shall be record owner of at least 5% of the Common Stock of Vastera
calculated on a fully diluted basis as of the Closing.

            6.5   Issuance of Shares. The issuance of the Shares to SSC was duly
authorized by all necessary corporate action on the part of the Vastera, and the
Shares so issued and delivered to SSC are duly and validly issued, fully paid
and non-assessable.

            6.6   Ownership of Shares. SSC is the record and beneficial owner
of, and has good and marketable title free and clear of any Encumbrances to the
Shares. Upon transfer to Ford of certificates representing the Shares, Ford will
be the absolute owner of such Shares free, clear and discharged of and from any
Encumbrances.

            6.7   Governmental Consents. No consent, approval, order or
authorization of, or registration, qualification, designation, declaration or
filing with, any governmental authority is required on the part of Vastera or
SSC in connection with (i) the execution and delivery of this Agreement, (ii)
the issuance or transfer of the Shares, (iii) the other transactions to be
consummated at the Closing, as contemplated by this Agreement, provided,
however, that in connection with provision (ii) of this Section 6.7 the
following are required: (a) requisite filings with the appropriate state
securities authorities, which Vastera hereby covenants to make on a timely basis
and (b) such filings as shall have been made prior to and shall be effective on
and as of the Closing or within the prescribed time period following Closing.
Assuming the accuracy of the representations and warranties of Ford in Section 7
of this Agreement, the transfer of the Shares to Ford will be exempt from
applicable Federal and state securities registration requirements.

            6.8   Financial Statements. Vastera has delivered to Ford (i) a
complete and correct copy of the audited balance sheet of Vastera and its
Subsidiaries as of December 31, 1999 and as of December 31, 1998 and the related
statements of

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operations and cash flows for the fiscal years then ended, compiled by Vastera
(the "AUDITED FINANCIAL STATEMENTS") and (ii) a complete and correct copy of the
unaudited balance sheet of Vastera (the "STUB PERIOD BALANCE SHEET") as of March
31, 2000 (the "STUB PERIOD BALANCE SHEET Date") and the related statements of
operations and cash flows for the three-month periods then ended, compiled by
Vastera (the "STUB PERIOD FINANCIAL STATEMENTS" and together with the Audited
Financial Statements, the "FINANCIAL STATEMENTS"). The Financial Statements are
complete and correct, are in accordance with the books and records of Vastera
and present fairly the financial condition and results of operations of Vastera,
as of the dates and for the periods indicated. The Audited Financial Statements
have been prepared in accordance with generally accepted accounting principles,
consistently applied. The Stub Period Financial Statements have been prepared
for the internal use of management and may not be in accordance with generally
accepted accounting principles because of the absence of footnotes normally
contained therein and are subject to normal year-end audit adjustments which in
the aggregate will not be material.

            6.9   Absence of Liabilities. Except as disclosed on Schedule 6.9,
neither Vastera nor any of its Subsidiaries has any material liabilities and
material contingent liabilities which are not disclosed, or adequately provided
for, in the Financial Statements, with the exception of liabilities incurred in
the ordinary course of business subsequent to the Stub Period Balance Sheet Date
which do not have, either in any individual case or in the aggregate, a material
adverse effect on Vastera's or its Subsidiaries' assets, liabilities, financial
condition, operation or prospects. Except as disclosed on Schedule 6.9, since
the Stub Period Balance Sheet Date, there has been no material adverse change in
the condition, financial or otherwise, net worth or results of operations of
Vastera and its Subsidiaries, other than changes occurring in the ordinary
course of business which changes have not, individually or in the aggregate, had
a material adverse effect on the business, prospects, properties or condition,
financial or otherwise, of Vastera.

            6.10  Agreements; Action. Except as set forth on Schedule 6.10,
there are no agreements, understandings, instruments, contracts, proposed
transactions, judgments, orders, writs or decrees to which Vastera or any of its
Subsidiaries is a party or, to its knowledge, is bound which may involve (i)
obligations (contingent or otherwise) of, or payments to, Vastera or any of its
Subsidiaries in excess of $100,000 (other than obligations of, or payments to,
Vastera or any of its Subsidiaries arising from purchase or sale agreements
entered into in the ordinary course of business), (ii) the license of any
patent, copyright, trade secret or other proprietary right to or from Vastera or
any of its Subsidiaries (other than licenses arising from the purchase of "off
the shelf" or other standard products), (iii) provisions restricting or
affecting the development, manufacture or distribution of Vastera's or any of
its Subsidiaries' products or services, or (iv) indemnification by Vastera or
any of its Subsidiaries with respect to infringements of proprietary rights
(other than indemnification obligations arising from purchase or sale agreements
entered into the ordinary course of business).

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            6.11  Compliance. Each of Vastera and its Subsidiaries has, in all
material respects, complied with all laws, regulations and orders applicable to
its present and proposed business, except where the failure to be in compliance
with such laws, regulations or orders would not have a material adverse effect
on the business, operations or condition of Vastera or any of its Subsidiaries.
There is no term or provision of any material mortgage, indenture, contract,
agreement or instrument to which Vastera or any of its Subsidiaries is a party
or by which it is bound, or, to the best knowledge of Vastera, of any provision
of any state or Federal judgment, decree, order, statute, rule or regulation
applicable to or binding upon Vastera or any of its Subsidiaries, that
materially adversely affects or, so far as Vastera may now foresee, in the
future is reasonably likely to materially adversely affect, the business,
prospects, condition, affairs or operations of Vastera or any of its
Subsidiaries, properties or assets. To the best of the knowledge of Vastera, no
employee of Vastera or any of its Subsidiaries is in violation of any contract
or covenant (either with Vastera or with another entity) relating to employment,
patent, other proprietary information disclosure, non-competition, or
non-solicitation. Vastera and its Subsidiaries have all necessary permits,
licenses and other authorizations required to conduct their business as
conducted and Vastera and its Subsidiaries have been operating their business
pursuant to and in compliance with the terms of all such permits, licenses and
other authorizations, except where the failure to obtain such permit, license or
authorization or their non-compliance has not and could not reasonably be
expected to have a material adverse effect on the business operations or
conditions of Vastera and its Subsidiaries.

            6.12  Books and Records. The minute books of Vastera contain
complete and accurate records of all meetings and other corporate actions of its
stockholders and its Board of Directors and committees thereof. The stock ledger
of Vastera is complete and reflects all issuances, transfers, repurchases and
cancellations of shares of capital stock of Vastera.

            6.13  Litigation. Except as set forth in the attached Schedule 6.13
for all representations and warranties in this Section 6.13, there is no (i)
action, suit, claim, proceeding or investigation pending or, to the best of
Vastera's knowledge, threatened against or affecting Vastera or its
Subsidiaries, at law or in equity, or (ii) governmental inquiry pending or, to
the best of Vastera's knowledge, threatened against or affecting Vastera or its
Subsidiaries, and to the best of Vastera's knowledge there is no basis for any
of the foregoing. Neither Vastera nor any of its Subsidiaries is not in default
with respect to any order, writ, injunction or decree known to or served upon
Vastera or any of its Subsidiaries of any court or of any Federal, state,
municipal or other governmental department, commission, board, bureau, agency or
instrumentality, domestic or foreign. There is no action or suit by Vastera or
its Subsidiaries pending, threatened or contemplated against others.

            6.14  Patents, Trademarks, Etc. Each of Vastera and its Subsidiaries
owns or possesses licenses or other rights to use all intellectual property
necessary or desirable to the conduct of its business as conducted, and no claim
is pending or threatened to the effect that the operations of Vastera or any of
its Subsidiaries infringe

                                       11
<PAGE>

upon or conflict with the asserted rights of any other Person under any
intellectual property, and there is no basis for any such claim (whether or not
pending or threatened). No claim is pending or, to the best of Vastera's
knowledge, threatened to the effect that any such intellectual property owned or
licensed by Vastera or its Subsidiaries, or which Vastera or its Subsidiaries
otherwise have the right to use, is invalid or unenforceable by Vastera or any
of its Subsidiaries, and, to the best of Vastera's knowledge, there is no basis
for any such claim (whether or not pending or threatened).

            6.15  Taxes. Except as set forth in the attached Schedule 6.15,
Vastera and each of its Subsidiaries has filed all tax returns, Federal, state,
county and local, required to be filed by it, and each of Vastera and its
Subsidiaries has paid all taxes shown to be due by such returns as well as all
other taxes, assessments and governmental charges which have become due or
payable, including without limitation, all taxes which Vastera is obligated to
withhold from amounts owing to employees, creditors and third parties. Each of
Vastera and its Subsidiaries has established adequate reserves for all taxes
accrued but not yet payable. The Federal income tax returns of Vastera and each
of its Subsidiaries have never been audited by the Internal Revenue Service. No
deficiency assessment with respect to or proposed adjustment of Vastera's or any
of its Subsidiaries' Federal, state, county or local taxes is pending or, to the
best of Vastera's knowledge, threatened. There is no tax lien (other than for
current taxes not yet due and payable), whether imposed by any Federal, state,
county or local taxing authority, outstanding against the assets, properties or
business of Vastera or its Subsidiaries. Neither Vastera nor any of its present
or former stockholders has ever filed an election pursuant to Section 1362 of
the Internal Revenue Code of 1986, as amended, that Vastera be taxed as an S
corporation.

            6.16. Assets; Real Property.

            (a)   Except as set forth in the attached Schedule 6.16(a) Vastera
and each of its Subsidiaries has good and marketable title to, or a valid
leasehold interest in, the properties and assets used by it, located on its
premises or shown on The Financial Statements or acquired thereafter, free and
clear of all Encumbrances, except for properties and assets disposed of in the
ordinary course of business since the date of The Financial Statements and
except for Encumbrances disclosed on The Financial Statements and liens for
current property taxes not yet due and payable. Vastera and each of its
Subsidiaries owns, or has a valid leasehold interest in, all assets and
properties necessary for the conduct of its business as conducted.

            (b)   Neither Vastera nor any of its Subsidiaries has and never has
had, any ownership interest, security interest or other interest of any kind in
any real property whatsoever with the exception of real property leases for
office space.

            6.17. Contracts; No Defaults. Neither Vastera nor any of its
Subsidiaries is in default with respect to the performance of any of its
obligations under any agreements material to Vastera and its Subsidiaries,
including but not limited to,

                                       12
<PAGE>

employment agreements, agreements involving performance of services or delivery
of goods or materials to or by Vastera or its Subsidiaries, and each lease,
rental, license and conditional sale agreement affecting any real or personal
property used, owned or licensed by Vastera or its Subsidiaries, agreements
relating to intellectual property used, owned or licensed by Vastera or its
Subsidiaries, and other agreements to which Vastera or its Subsidiaries is a
party or is bound, in each case if the agreement involves the payment of
$100,000 or more in either a single payment or over a twelve-month period. Each
such agreement is in full force and effect and is valid and enforceable in
accordance with its terms.

            6.18. Employees. To the best knowledge of Vastera or SSC, no
executive or key employee of Vastera or any of its Subsidiaries or any group of
employees of Vastera or any of its Subsidiaries has any plans to terminate
employment with Vastera or any of its Subsidiaries. Neither Vastera or any of
its Subsidiaries, nor to the best of Vastera's knowledge, any of its employees
is subject to any noncompete, nondisclosure, confidentiality, employment,
consulting or similar agreements relating to, affecting or in conflict with the
present business activities of Vastera or any of its Subsidiaries. Neither
Vastera nor any of its Subsidiaries is a party to or bound by any collective
bargaining agreement, nor has it experienced any strikes, grievances, claims of
unfair labor practices or other collective bargaining disputes and no activity
or claims have been threatened.

            6.19. ERISA. Vastera's plans or trusts and the plans or trusts of
its Subsidiaries are all in compliance with ERISA and the Internal Revenue Code
of 1986.

            6.20. Offering. Subject to the truth of the representations and
warranties of Ford contained in Section 7 hereof, the transfer of the Shares is
exempt from the registration requirements of the Securities Act of 1933, as
amended.

            6.21. Related Party Transactions. Except as set forth in the
attached Schedule 6.21, no employee, officer or director of Vastera or any of
its Subsidiaries, or member of the immediate family of any of them, is indebted
to Vastera or any of its Subsidiaries, nor is Vastera or any of its Subsidiaries
indebted (or committed to make loans or extend or guarantee credit) to any of
them. No employee, officer or director of Vastera or any of its Subsidiaries, or
member of the immediate family of any of them, has any direct or indirect
ownership interest in any Person with which Vastera or any of its Subsidiaries
is affiliated or with which Vastera has a business relationship, or any Person
that competes with Vastera or any of its Subsidiaries. No employee, officer or
director of Vastera or any of its Subsidiaries, or member of the immediate
family of any of them, is, directly or indirectly, interested in any material
agreement with Vastera or any of its Subsidiaries.

            6.22  Disclosures. Neither this Agreement nor any exhibit hereto,
nor any report, certificate or instrument furnished to Ford in connection with
the transactions contemplated by this Agreement, when read together, contains or
will contain any material misstatement of fact or omits or will omit to state a
material fact necessary to

                                       13
<PAGE>

make the statements contained herein or therein not misleading. Vastera knows of
no information or fact that has or would have a material adverse effect on the
business, prospects or condition (financial or otherwise) of Vastera that has
not been disclosed to Ford in writing.

      7.    Representations and Warranties of Ford. Ford represents and warrants
to Vastera as follows, except as set forth on the attached disclosure schedules,
that:

            7.1   Organization; Good Standing; Power. Ford is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Delaware.

            7.2   Authorization of Ford. Ford has full power and authority to
enter into this Agreement and the Related Agreements to which it is a party, to
perform its obligations hereunder and thereunder, and to consummate the
transactions contemplated hereby and thereby. Ford has taken all necessary and
appropriate corporate action with respect to the execution and delivery of this
Agreement and the Related Agreements. No other corporate proceedings on the part
of Ford are necessary to authorize this Agreement or to consummate the
transactions so contemplated hereby including approval by any creditors of Ford.
This Agreement and each Related Agreement constitutes valid and binding
obligations of Ford, enforceable in accordance with their terms except as
limited by applicable bankruptcy, insolvency, moratorium, reorganization, or
other laws affecting creditors' rights and remedies generally.

            7.3   Investment Intent. Ford is acquiring the Shares for its own
account for investment and not with a view to, or for sale or other disposition
in connection with, any distribution thereof, nor with any present intention of
selling or otherwise disposing of the same.

            7.4.  Investment Experience; Accredited Investor Status. Ford is an
informed and sophisticated investor, and has sufficient knowledge and experience
in business and financial matters to permit it to evaluate the merits and risks
of an investment in Vastera. Ford is an "accredited investor" as defined in
Regulation D promulgated under the Securities Act. Ford acknowledges that the
Shares are being issued and sold under exemptions from registration provided in
the Securities Act and under applicable state securities laws and, therefore,
cannot be sold unless subsequently registered under the Securities Act or
applicable state securities laws or an exemption from such registrations is
available. Accordingly, Ford represents and warrants that it is able to bear the
economic risk of any investment in the Shares.

            7.5.  Information. Ford represents that it has had the opportunity
to ask questions and receive answers concerning the Shares and to obtain
whatever information concerning Vastera as has been requested by Ford in order
to make its investment decision.

                                       14
<PAGE>

            7.6   Conduct of Business. At all times, Ford has conducted the
Business diligently in the ordinary course thereof.

            7.7   Undisclosed Liabilities, Releases and Waivers. There are no
debts, liabilities or obligations with respect to which the assets of the
Business that are being acquired by SSC are subject, whether liquidated,
unliquidated, accrued, absolute, contingent, or otherwise other than in the
ordinary course of business.

            7.8   Compliance with Laws. To Ford's knowledge, Ford has complied
and is in compliance with all applicable foreign, federal, state, and local
laws, statutes, licensing requirements, rules, and regulations, and judicial or
administrative decisions applicable to the Business where the failure to so
comply could have a material adverse effect on the results of operations or
financial condition of the Business.

            7.9   Consents. Except for the requirements of the HSR Act or as set
forth on Schedule 7.9, no consent, approval, order or authorization of, or
registration, qualification, designation, declaration or filing with, any
governmental authority is required on the part of Ford in connection with (i)
the execution and delivery of this Agreement or (ii) the transactions to be
consummated at the Closing, as contemplated by this Agreement.

            7.10  Restrictive Documents or Orders. Ford is not a party to or
bound under any agreement, contract, order, judgment, writ, rule regulation or
decree, or any similar restriction not of general application which reasonably
could be expected to materially adversely affect, (i) the continued operation by
SSC of the Business after the Closing on substantially the same basis as the
Business was theretofore operated (assuming that SSC and Vastera have received
all requisite consents and are qualified and authorized to operate the Business
in each jurisdiction in which the nature of the Business requires it to be so
qualified), or (ii) the consummation of the transactions contemplated by this
Agreement.

            7.11  Absence of Change. Since March 31, 2000, there has been no
material adverse change in the condition of the Business, financial or
otherwise, other than changes occurring in the ordinary course of business which
changes have not, individually or in the aggregate, had a materially adverse
effect on the Business.

            7.12  Litigation. Except as set forth on Schedule 7.12, there is no
(i) action, suit, claim, proceeding or investigation pending or, to Ford's
knowledge, threatened against or affecting the operation of the Business by
Ford, at law or in equity, or (ii) governmental inquiry pending or, to Ford's
knowledge, threatened against or affecting the operation of the Business by
Ford. Ford is not in default with respect to any order, writ, injunction or
decree known to or served upon Ford relating to the Business of any court or of
any Federal, state, municipal or other governmental department, commission,
board, bureau, agency or instrumentality, domestic or foreign.

                                       15
<PAGE>

            7.13  No Conflict or Default. Neither the execution and delivery of
this Agreement, nor compliance with the terms and provisions hereof and thereof,
including without limitation, the consummation of the transactions contemplated
hereby and thereby, will violate any statute, regulation, or ordinance of any
governmental authority, or conflict with or result in the breach of any term,
condition, or provision of its Articles of Incorporation or Bylaws, as presently
in effect, or of any agreement, deed, contract, mortgage, indenture, writ,
order, decree, legal obligation, or instrument to which Ford is a party or by
which it is or may be bound, or constitute a default (or an event which, with
the lapse of time or the giving of notice, or both, would constitute a default)
thereunder.

      8.    Survival of Representations and Warranties. Except as expressly
provided elsewhere herein, all representations and warranties contained herein
shall survive the execution and delivery of this Agreement and the closing of
the transactions contemplated hereby for a period of two years.

      9.    Financial Statements. The audited financial statements of the
Business are attached hereto as Exhibit G. Ford makes no representations as to
the accuracy of such financial statements.

      10.   Dispute Resolution. If a material breach occurs or a dispute arises
between the parties relating to this Agreement, the following procedure shall be
implemented in lieu of litigation, except that either party may seek injunctive
relief from a court where appropriate in order to maintain the status quo while
this procedure is being followed:

      (a)   The parties shall hold a meeting promptly, attended by persons with
            decision-making authority regarding the dispute, to attempt in good
            faith to negotiate a resolution of the dispute; provided, however,
            that no such meeting shall be deemed to vitiate or reduce the
            obligations and liabilities of the parties hereunder or be deemed a
            waiver by a party hereto of any remedies to which such party would
            otherwise be entitled hereunder.

      (b)   If within thirty (30) days after such meeting the parties have not
            succeeded in negotiating a resolution of the dispute, they agree to
            submit the dispute to mediation in accordance with the then current
            Model Procedure for Mediation of Business Disputes of the Center for
            Public Resources and to bear equally the costs of the mediation.

      (c)   The parties will jointly appoint a mutually acceptable mediator,
            seeking assistance in such regard from the Center for Public
            Resources if they have been unable to agree upon such appointment
            within twenty (20) days from the conclusion of the negotiation
            period.

      (d)   The parties agree to participate in good faith in the mediation and
            negotiations related thereto for a period of thirty (30) days. If
            the parties are not successful in resolving the dispute through the
            mediation, then the

                                       16
<PAGE>

            parties agree to submit the matter to binding arbitration or a
            private adjudicator.

      (e)   Mediation or arbitration shall take place in Pittsburgh,
            Pennsylvania unless otherwise agreed by the parties. Equitable
            remedies shall be available in any arbitration. Punitive damages
            shall not be awarded. This Section is subject to the Federal
            Arbitration Act, 9 U.S.C.A. Section 1 et seq.

      (f)   In the event of arbitration, the parties agree that the award of the
            arbitrator shall be (1) the sole and exclusive remedy between them
            regarding any claims, counterclaims, or issues presented to the
            arbitrator; (2) final and subject to no judicial review; and (3)
            made and shall promptly be payable in U.S. dollars free of any tax,
            deduction, or offset. The parties further agree that any costs,
            fees, or taxes incident to enforcing the award shall, to the maximum
            extent permitted by law, be charged against the party resisting such
            enforcement. The parties hereto agree that judgment on the
            arbitration award may be entered and enforced in any court of
            competent jurisdiction. Each party shall, except as otherwise
            provided herein, be responsible for its own costs, including legal
            fees, incurred in the course of any arbitration proceedings. The
            fees of the arbitrator shall be divided evenly between the parties.

      11.   Notices. All notices, requests, consents, and other communications
under this Agreement shall be in writing and shall be delivered by hand, by
recognized overnight courier service or mailed by first class certified or
registered mail, return receipt requested, postage prepaid:

            If to Vastera, at Vastera, Inc., 45025 Aviation Drive, Suite 200,
Dulles, VA 20166, Attention: President, or at such other address or addresses as
may have been furnished in writing by Vastera to Ford, with a copy to Brian D.
Henderson, Esq., Brobeck, Phleger & Harrison LLP, 701 Pennsylvania Avenue, N.W.,
Washington, D.C. 20004;

            If to Ford, at One American Road, Dearborn, Michigan 48126,
Attention: Secretary, or at such other address or addresses as may have been
furnished to Vastera in writing by Ford, with a copy to Ford Motor Company,
Office of the General Counsel, One American Road, WHQ Suite 320, Dearborn,
Michigan 48126, Attention: Assistant General Counsel --Transactions.

            Notices provided in accordance with this Section 10 shall be deemed
delivered upon personal delivery, one business day after delivery to a
recognized overnight courier service or two business days after deposit in the
mail.

      12.   Miscellaneous.

                                       17
<PAGE>

            12.1  Entire Agreement. This Agreement embodies the entire agreement
and understanding between the parties hereto with respect to the subject matter
hereof and supersedes all prior agreements and understandings relating to such
subject matter.

            12.2  Amendments and Waivers. Except as otherwise expressly set
forth in this Agreement, any term of this Agreement may be amended and the
observance of any term of this Agreement may be waived (either generally or in a
particular instance and either retroactively or prospectively), with the written
consent of Vastera and Ford. Any amendment or waiver effected in accordance with
this Section 12 shall be binding upon each of Ford and Vastera. No waivers of or
exceptions to any term, condition or provision of this Agreement, in any one or
more instances, shall be deemed to be, or construed as, a further or continuing
waiver of any such term, condition or provision.

            12.3. Counterparts. This Agreement may be executed in two
counterparts, each of which shall be deemed an original, but all of which, when
taken together, shall constitute one and the same instrument.

            12.4. Headings. The headings of the sections, subsections, and
paragraphs of this Agreement have been added for convenience only and shall not
be deemed to be a part of this Agreement.

            12.5. Severability. The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision.

            12.6. Governing Law. This Agreement shall be governed by and
construed in accordance with the laws of the State of Delaware.

            12.7. In connection with this Agreement, Ford and Vastera have
executed a Parent Guaranty, attached hereto as Exhibit H.

            12.8. Definitions. The following terms as used in this Agreement
shall have the meanings specified below:

      "ADDITIONAL AGREEMENTS" means the Registration Rights Agreement and the
New Co-Sale Agreement.

      "BUSINESS" means the assets and rights transferred by Ford to Vastera
pursuant to the Related Agreements and all liabilities arising from or
associated with the Related Agreements, but specifically excluding any earnings
deficit associated with the Business prior to the date hereof.

      "ENCUMBRANCE" means any claim, charge, lease, covenant, easement,
encumbrance, security interest, lien, option, pledge, right of others, mortgage,
hypothecation, conditional sale, or restriction (whether on voting, sale,
transfer, disposition, or otherwise), whether imposed by agreement,
understanding, law, equity,

                                       18
<PAGE>

or otherwise, except for any restrictions on transfer generally arising under
any applicable federal or state securities law.

      "GAAP" means U.S. generally accepted accounting principals.

      "HSR ACT" means the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended, and the related regulations and published interpretations.

      "IPO" means the initial underwritten public offering of shares of
Vastera's Common Stock, with an aggregate offering price of no less than
$20,000,000.

      "NEW CO-SALE AGREEMENT" means the Co-Sale Agreement, as amended only to
include Ford as an "Investor" (as such term is defined in the Co-Sale Agreement)
that will be executed by the Parties as of the date of Closing.

      "RELATED AGREEMENTS" means

            (a)   The License Agreement, dated as of the date hereof, and
            attached hereto as Exhibit C.

            (b)   The Employee Transfer Agreement, dated as of the date hereof,
            and attached hereto as Exhibit D.

            (c)   The Employee Secondment Agreement, dated as of the date
            hereof, and attached hereto as Exhibit E.

      "REGISTRATION RIGHTS AGREEMENT" means the agreement in the form of the
Third Amended and Restated Investors' Rights Agreement, that is (attached hereto
as Exhibit F) that will be executed by the Parties as of the date of Closing.

      "SEC" means the United States Securities and Exchange Commission.

      "TO FORD'S KNOWLEDGE" means the actual knowledge of Gary Boone, Manager,
Global Customs and the knowledge that he should have had acting as a reasonably
prudent manager in his capacity as Manager, Global Customs.

            12.8  Successors and Assigns. The provisions of this Agreement shall
be binding upon, and inure to the benefit of, the respective successors,
assigns, heirs, executors and administrators of the parties hereto.

                           [SIGNATURE PAGE TO FOLLOW]

                                       19
<PAGE>

      IN WITNESS WHEREOF, the undersigned have hereunto set their hands to this
Stock Issuance Agreement as of the day and year first above written.

                                           VASTERA, INC.

                                           By:  /s/ Arjun Rishi
                                               --------------------------------

                                           VASTERA SOLUTION SERVICES CORPORATION

                                           By:  /s/ Arjun Rishi
                                               --------------------------------

                                           FORD MOTOR COMPANY

                                           By:  /s/ Frank Taylor
                                               --------------------------------

                                       20<PAGE>

                                                                   Exhibit 10.18

                                                                 EXECUTABLE COPY

                    SALARIED EMPLOYEE SECONDMENT AGREEMENT*

              This Secondment Agreement (the "Agreement") is made effective on
July 14, 2000 (the "Effective Date"), between Vastera Solutions Services
Corporation, a Delaware corporation with offices at 45025 Aviation Drive, Suite
200, Dulles, Virginia 20166 ("Vastera"), and Ford Motor Company, a Delaware
corporation, with offices at The American Road, Dearborn, Michigan 48121
("Ford"). Vastera and Ford referred to herein individually as a "Party" and
collectively as the "Parties".

                                    RECITALS

       A.     Vastera is engaged in the business of providing solutions for
global trade management to clients ("Business");

       B.     Pursuant to the terms of a Stock Transfer Agreement among Ford,
Vastera and Vastera, Inc. dated as of July 14, 2000, Vastera acquired
substantially all of the assets related to the operation of Ford's customs
operations;

       C.     Vastera plans to offer, or cause its Affiliates to offer, about
120 of the 135 employees who are engaged in providing custom services to Ford or
its Affiliates ("Ford Customs Employees") employment with Vastera or its
Affiliates over phased periods in order to assist Vastera in conducting the
Business. Ford Customs Employees who decline Vastera's offer of employment will
remain Ford Customs Employees but will be seconded to Vastera for a limited
term, and then be transitioned back to Ford.

       D.     This Agreement sets forth the terms and conditions for seconding
the U.S. based Ford Customs Employees ("U.S. Ford Customs Employees").

              NOW, THEREFORE, in consideration of the premises and mutual
promises herein made, and for other good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, the Parties agree as follows:

       1.     TERM. The term of this Agreement shall commence on the Effective
Date and shall terminate on December 31, 2002. ("Term"). During the Term, this
Agreement may be terminated only upon mutual agreement between the Parties or by
a material breach by either Party after reasonable notice and an opportunity to
cure the breach.

       2.     ASSIGNMENT OF U.S. FORD CUSTOMS EMPLOYEES.

--------
* Portions of this document have been omitted, with the precise position of
these omissions marked with an asterisk, pursuant to a request for confidential
treatment and such omitted portions have been filed separately with the U.S.
Securities and Exchange Commission.

CONFIDENTIAL

<PAGE>

                                      2

       2.1    EMPLOYEE CENSUS. Attachment A attached hereto sets forth a list of
       the U.S. Ford Customs Employees to be seconded to Vastera as of the
       Effective Date, together with their base salary rate, any other targeted
       or mandatory cash compensation, including without limitation, bonus
       levels (based on 2000 target bonus range), job classification, FCG status
       (as defined below) and scheduled rotation date and social security number
       where applicable ("Seconded Employees"). The period during which Seconded
       Employees are seconded to Vastera is referred to as the "Assigned
       Period". During the Assigned Period, Ford shall make available to Vastera
       the services of the Seconded Employees, on a full-time or part-time
       basis.

       2.2    VASTERA EMPLOYMENT. Seconded Employees may resign employment with
       Ford according to Ford's policies. In the event of such resignation, Ford
       will cooperate with Vastera in searching for and identifying appropriate
       candidates for Vastera to hire to fill such positions. Vastera shall have
       the right to hire any Seconded Employee and Ford shall not interfere with
       Vastera's attempt to hire any Seconded Employee. If a Seconded Employee
       desires to accept Vastera's offer of employment, Ford shall terminate
       such employee on a date mutually agreed by the Parties. In such event,
       the Seconded Employee shall be removed from Attachment A on Vastera's
       hire date.

       2.3    REPATRIATION TO FORD. Except as provided below or in Section 4.2,
       prior to *, no Seconded Employee shall be repatriated to Ford. In the
       event that there is an advancement, promotional or other career
       development opportunity available for a Seconded Employee, and upon
       mutual agreement between the Parties, a Seconded Employee may be released
       from this Agreement and repatriated to Ford on a mutually agreeable date,
       and Attachment A shall be modified accordingly. Notwithstanding anything
       herein to the contrary, any Seconded Employee who is in the Ford College
       Graduate Program ("FCG") as of the Effective Date shall be repatriated to
       Ford on the scheduled rotation date and Attachment A shall be modified
       accordingly. Nothing herein contained shall preclude Vastera from making
       an offer of employment to a FCG. On or after *, if Ford wishes to remove
       a Seconded Employee from Attachment A for placement at Ford, Ford shall
       give Vastera prior written notice of its request for such removal
       whereupon Ford and Vastera shall meet in good faith to determine the
       timing of such removal after consideration of each Party's mutual needs,
       such as Vastera's ability to replace the Seconded Employee and the timing
       of Ford's placement opportunities. Once a date is mutually agreed, the
       Seconded Employee shall be removed from Attachment A on the date the
       Seconded Employee is repatriated to Ford.

----------
* This portion of the document has been omitted pursuant to a request for
confidential treatment and such portion has been filed separately with the U.S.
Securities and Exchange Commission.

CONFIDENTIAL

<PAGE>

                                       3

       3.     LIAISONS. Each of Ford and Vastera shall appoint a liaison for
purposes of administering the terms of this Agreement. The names of the liaisons
shall be attached hereto as Attachment B. Either Party may change its liaison by
giving notice thereof to the other Party, and substituting a new Attachment B.
The Liaisons, by way of example but not limited to the following, will
coordinate benefit questions, leave requests, disciplinary issues, performance
concerns and personnel matters.

       4.     EMPLOYER MATTERS.

       4.1    EMPLOYER DEFINITION. Ford shall be the employer of the Seconded
       Employees for all purposes and Vastera shall not be considered the
       employer for any purpose. Ford will instruct Seconded Employees to
       conform to Vastera policies while at Vastera facilities regarding safety
       and health, personal and professional conduct (including the wearing of
       an identification badge or personal protective equipment and adhering to
       plan regulations and general safety practices or procedures) generally
       applicable to such facilities, which rules and regulations Vastera will
       provide upon request, and otherwise conduct themselves in a businesslike
       manner. Seconded Employees also shall be subject at all times to Ford's
       policies and procedures. During the Assigned Period, Ford shall retain
       responsibility for all payments and benefits due to the Seconded
       Employees in connection with their work relating to the Business and
       pro-rated for part-time seconded employment, including but not limited to

       (i)    the payment of Seconded Employees' base salary or other components
       of pay (less any applicable withholding or other taxes or any amounts
       deducted from such wages pursuant to normal payroll practices of Ford);

       (ii)   the provision of all other employee benefits generally provided by
       Ford to other non-represented Seconded Employees; (iii) payment of all
       federal, state, or local taxes withheld or otherwise required to be paid
       with respect thereto, and (iv) the liability for statutory benefits,
       including workers' compensation.

       4.2    EMPLOYER RIGHTS. Ford shall have the right to terminate any of the
       Seconded Employees. Ford shall have the right to change the salary and
       job classification of the Seconded Employees upon reasonable notice to
       Vastera. Although Ford shall remain responsible for performance
       management and personnel development, Vastera and its management shall
       have the right to assign to, and structure work for, Seconded Employees.
       *. This procedure shall be accelerated or modified because of an
       emergency situation or if the circumstances otherwise warrant. Ford shall
       request Vastera to provide

----------
* This portion of the document has been omitted pursuant to a request for
confidential treatment and such portion has been filed separately with the U.S.
Securities and Exchange Commission.

CONFIDENTIAL

<PAGE>

                                       4

       information or documents with respect to the Seconded Employees job
       performance and other matters, and Vastera shall cooperate with Ford in
       providing such information or documents.

       4.3    EMPLOYER REPRESENTATIONS. Ford represents and warrants that for
       the Assigned Period, (i) the Seconded Employees shall be paid by Ford on
       a salaried basis and be exempt from the wage and hour requirements of the
       Fair Labor Standards Act ("FLSA") and any other similar or comparable
       statute, law, ordinance, rule or regulation, whether federal, state or
       local, (ii) shall not be subject to any collective bargaining agreement,
       and (iii) shall be subject to Ford's annual Compensation Planning process
       as set forth in Ford's policies and procedures.

       4.4    ACKNOWLEDGMENT, NON-DISCLOSURE AND CONFIDENTIALITY AGREEMENT.
       Seconded Employees shall be required to execute the Acknowledgment,
       Non-Disclosure and Confidentiality Agreement attached hereto as
       Attachment C. The Non-Disclosure and Confidentiality Agreement shall
       contain the same terms as are contained in the agreement that employees
       of Vastera are required to sign. In the event a U.S. Ford Customs
       Employee refuses to sign the Acknowledgment, Non-Disclosure and
       Confidentiality Agreement, the Parties shall discuss whether the U.S.
       Ford Customs Employee shall be seconded or continue to be seconded under
       the terms of this Agreement.

       5.     PAYROLL AND RELATED SERVICES. During the Assigned Period, Ford
shall provide payroll processing services for its Seconded Employees including,
but not limited to, the following: bi-weekly or monthly payroll, quarterly and
annual payroll tax deductions and filings, including deductions and payments for
income and Social Security tax requirements under local, state and federal laws;
personnel record maintenance, insurance withholdings; employee verification;
retirement plan processing and annual W-2 forms. Upon reasonable request or as
needed, Ford will provide assurances that all proper payments and reporting
requirements have been made.

       6.     EMPLOYEE BENEFIT PLANS.

       6.1    IDENTIFICATION OF PLANS. During the Assigned Period, Ford shall
       cover the Seconded Employees under the same employee benefit and fringe
       benefit plans and arrangements generally offered to other salaried
       employees of Ford at the same time, and the Seconded Employees shall
       continue to accrue benefits under such plans. Seconded Employees shall be
       ineligible to participate in any employee benefit plan or fringe benefit
       program sponsored by Vastera. Requests for leave, reasonable
       accommodation and other benefits provided by Ford policies or by federal,
       state or local law will be coordinated through the Ford Liaison. Ford
       reserves the right to modify, terminate or suspend any plan applicable to
       any of the Seconded Employees.

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<PAGE>

                                       5

       6.2    ADMINISTRATION OF PLANS. During the Assigned Period, Ford shall
       maintain, administer and manage all employee benefit and fringe benefit
       plans and arrangements offered to the Seconded Employees.

       7.     REIMBURSEMENT. Ford shall be reimbursed monthly for the direct
wage and benefit costs for the Seconded Employees. For purposes of this Section
7, reimbursements for "direct wage and benefit costs" shall include:

              (i)    The base monthly salary, and any other type of cash
                     compensation paid by Ford to the Seconded Employees for
                     work performed during the Assigned Period, such as
                     overtime, bonuses, moving allowance, and any other cash
                     compensation not included in the Standard Monthly Group
                     Fringe cost (defined below), provided, however, that
                     reimbursement for the base monthly salary of a Seconded
                     Employee shall be limited to no more * increase over the
                     previous year's base monthly salary;

              (ii)   A per-employee Standard Monthly Group Fringe cost equal to
                     * of each Seconded Employee's base monthly salary wage;

              (iii)  A per-employee Standard Monthly General Overhead Expense
                     equal to * of each Seconded Employee's base monthly salary
                     but only with respect to a Seconded Employee who continues
                     to occupy Ford's owned or leased facilities from the
                     Effective Date until March 31, 2001;

              (iv)   Expenses incurred by Ford with respect to each Seconded
                     Employee which is not included in (i) through (iii) above
                     that arise as a result of the Seconded Employee's work for
                     Vastera, such as reserves for any workers' compensation
                     claims arising out of a work accident while the Seconded
                     Employee was performing work for Vastera during the
                     Assigned Period;

              (v)    Reasonable and necessary travel and business related
                     expenses incurred by Ford in furtherance of Vastera
                     business and paid or reimbursed to a Seconded Employee by
                     Ford as authorized by Ford's standard travel and business
                     expense reimbursement policy; and

              (vi)   All assessments, premiums or other taxes incurred and paid
                     by Ford with respect to the Seconded Employees.

       8.     PAYMENT. Within fifteen (15) days after the end of each
calendar month during the Assigned Period, Ford shall render an invoice to
Vastera in such form and containing such detail as Vastera shall reasonably
require, for direct wage and benefit costs which Ford has incurred with
respect to the Seconded Employees and which were not previously invoiced.
This amount shall be payable to Ford by the fifteenth day of the following
month. Vastera shall have a right to audit the

----------
* This portion of the document has been omitted pursuant to a request for
confidential treatment and such portion has been filed separately with the U.S.
Securities and Exchange Commission.

CONFIDENTIAL

<PAGE>

                                       6

invoices and related records of Ford upon reasonable notice during normal
business hours, at a place mutually agreed by the Parties.

       9.     WORKERS' COMPENSATION AND UNEMPLOYMENT INSURANCE. Ford shall
continue to provide Workers' Compensation and Unemployment Compensation coverage
for all of the Seconded Employees at all times during the term of this
Agreement.

       10.    WORK ENVIRONMENT.

       10.1   COMPLIANCE WITH ALL HEALTH AND SAFETY LAWS. The Parties shall
       comply with all applicable, national, federal, state and local health and
       safety laws, regulations, ordinances, directives, and rules for Seconded
       Employees working on their respective premises.

       10.2   COMPLIANCE WITH EMPLOYMENT LAWS. The Parties shall comply with all
       applicable national, federal, state and local employment laws, including,
       but not limited to, wage and hour, overtime, discrimination laws, and/or
       local ordinances.

       11.    STAFFING OF VASTERA FOREIGN AFFILIATES. In the event Vastera or an
Affiliate forms another Affiliate for the purpose of conducting the Business in
a country other than the United States ("Vastera Foreign Affiliate"), if
requested by Vastera, Ford agrees to use its commercially reasonable efforts to
cause any of its Affiliates that do business in the same country or region
("Ford Foreign Affiliates"), or where appropriate under national law, will
recommend to the Ford Foreign Affiliate, to enter into a secondment arrangement
with the Vastera Foreign Affiliate with respect to certain employees of the Ford
Foreign Affiliate who refuse offers of Vastera employment, on terms and
conditions substantially similar to the terms expressed in this Secondment
Agreement, modified only to reflect variances in local law. For purposes of
Section 7, REIMBURSEMENT, the per-employee Standard Monthly Group fringe cost
shall be determined with reference to Ford's Standard Group Monthly Fringe cost
with respect to such country, where applicable, or a comparable statement of
labor costs and expressed as a percentage of base monthly salary. For purposes
of this Agreement, "Affiliate" means any individual, partnership, corporation,
limited liability company, trust, or other entity directly or indirectly,
through one or more intermediaries, controlling, controlled by or, under common
control with a Party.

       12.    INTELLECTUAL PROPERTY ASSIGNMENT

       12.1   ASSIGNMENT. Seconded Employees are employees of Ford. As a result,
       all intellectual property rights in inventions, that are conceived or
       first reduced to practice, and in original works of authorship created by
       each of them, during the period of their employment with Ford and that
       relate to Ford's business, are the property of Ford under the terms of
       their employment agreements and by law. Under this Agreement, Ford agrees
       to assign to Vastera all of Ford's intellectual

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<PAGE>

                                       7

       property rights in any inventions conceived or first reduced to practice
       and in original works of authorship created by any of the Seconded
       Employees, during the period each is seconded and that relate to
       Vastera's business. Such assignment or rights shall not preempt,
       supersede or otherwise interfere with Ford practicing rights received
       under license from Vastera in accordance with other agreements between
       the Parties. Ford further agrees to execute all assignment and other
       transfer documents as may be necessary to cause the above assignment of
       intellectual property rights to be legally formalized. All such documents
       shall be prepared by Vastera at Vastera's expense, and provided to Ford
       with at least thirty (30) days notice.

       12.2   FORD'S IP WARRANTY. Ford warrants that it has the right to make
       the assignment to Vastera of intellectual property rights in the
       inventions and works of authorship created by Seconded Employees.

       12.3   WARRANTY DISCLAIMER AND LIMITATION OF LIABILITY.

       (A)    EXCEPT TO THE EXTENT OF THE WARRANTY MADE ABOVE, FORD MAKES NO
       OTHER REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF
       EXAMPLE BUT NOT OF LIMITATION, FORD MAKES NO REPRESENTATIONS OR
       WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. FORD
       SHALL IN NO EVENT BE LIABLE TO VASTERA, ITS SUCCESSORS, OR A THIRD PARTY
       FOR ANY DAMAGES, WHETHER DIRECT OR INDIRECT, SPECIAL OR GENERAL,
       CONSEQUENTIAL OR INCIDENTAL, ARISING FROM ANY LOSS CLAIMED AS A RESULT OF
       VASTERA'S USE OF THE INTELLECTUAL PROPERTY RIGHTS ASSIGNED HEREUNDER .

       (B)    FORD MAKES NO WARRANTY OR REPRESENTATION THAT THE INTELLECTUAL
       PROPERTY RIGHTS ASSIGNED HEREUNDER CAN BE USED FOR ANY PARTICULAR
       FUNCTION OR THAT VASTERA HAS THE ABILITY TO USE THEM. FORD ASSUMES NO
       RESPONSIBILITY FOR THE SAFETY, QUALITY, DESIGN, SPECIFICATIONS,
       COMPLETENESS, ACCURACY OR OTHER CHARACTERISTICS OF THE PERFORMANCE,
       OUTPUT OR END PRODUCT RESULTING FROM THE USE OF THE INTELLECTUAL PROPERTY
       RIGHTS ASSIGNED HEREUNDER.

       (C)    EXCEPT TO THE EXTENT OF THE WARRANTY PROVIDED ABOVE, NOTHING
       CONTAINED HEREIN SHALL BE CONSTRUED AS CONFERRING BY IMPLICATION,
       ESTOPPEL OR OTHERWISE THE INDEMNIFICATION OF VASTERA BY FORD AGAINST ANY
       CLAIM OF INFRINGEMENT OF OTHER THIRD PARTY INTELLECTUAL PROPERTY RIGHTS,
       WHETHER OR NOT THE EXERCISE OF ANY RIGHT GRANTED HEREIN NECESSARILY
       EMPLOYS OR

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<PAGE>

                                       8

       REQUIRES THE PRACTICE OF ANY SUCH EXISTING OR SUBSEQUENTLY CREATED THIRD
       PARTY INTELLECTUAL PROPERTY RIGHTS.

       13.    INDEMNITY.

       13.1   COMPANY INDEMNITY. Vastera shall indemnify Ford against and agrees
       to hold it harmless from any and all damage, loss, claim, liability and
       expense (including without limitation, reasonable attorneys' fees and
       expense in connection with any action, suit or proceeding brought against
       Ford) incurred or suffered by Ford arising out of (i) breach of any
       agreement made by Vastera hereunder with respect to the Seconded
       Employees or (ii) employment claims of the Seconded Employees or Vastera
       employees that arise during the Assigned Period based on conditions at
       Vastera over which Vastera has sole control or any actions of Vastera or
       Vastera employees acting under Vastera's authority, direction or control
       with respect to the Seconded Employees.

       13.2   EMPLOYER INDEMNITY. Ford shall indemnify Vastera against and
       agrees to hold it harmless from any and all damage, loss, claim,
       liability and expense (including without limitation, reasonable
       attorneys' fees and expenses in connection with any action, suit or
       proceeding brought against Vastera) incurred or suffered by Vastera
       arising out of (i) breach of any agreement made by Ford with respect to
       the Seconded Employees; (ii) employment, payroll or other claims of
       Seconded Employees based on any action or omission on the part of Ford or
       any employee of Ford, including any Seconded Employee, except where the
       Seconded Employee was under Vastera's authority, direction or control; or
       (iii) any claim by Seconded Employees (or their dependents or
       beneficiaries), to the Pension Benefit Guaranty Corporation ("PBGC"), the
       Department of Labor ("DOL"), or Internal Revenue Service ("IRS"), or
       comparable federal or national agencies in the United States, arising out
       of or in connection with the operation, administration, funding or
       termination of any of the employee benefit plans or programs applicable
       to the Seconded Employees that arise prior to, during or after the
       Assigned Period.

       13.3   INDEMNIFICATION PROCEDURES. With respect to a Party's indemnity
       obligations hereunder with respect to third-party claims, the following
       procedures shall apply:

              (a)    NOTICE. Promptly after receipt by any entity entitled to
                     indemnification hereunder of notice of the commencement or
                     threatened commencement of any civil, criminal,
                     administrative, or investigative action or proceeding
                     involving a claim in respect of which the indemnitee will
                     seek indemnification pursuant to the terms and conditions
                     herein, the indemnitee shall notify the indemnitor of such
                     claim in writing. No failure to so notify an indemnitor
                     shall relieve it of its obligations under this Agreement
                     except to the extent that it can demonstrate damages

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<PAGE>

                                       9

                     attributable to such failure. Within fifteen (15) days
                     following receipt of written notice from the indemnitee
                     relating to any claim, but no later than ten (10) days
                     before the date on which any response to a complaint or
                     summons is due, the indemnitor shall notify the indemnitee
                     in writing if the indemnitor acknowledges its
                     responsibilities and obligations with respect to such
                     indemnification and elects to assume control of the defense
                     and settlement of that claim (a "Notice of Election").

              (b)    PROCEDURE FOLLOWING NOTICE OF ELECTION. If the indemnitor
                     delivers a Notice of Election relating to any claim within
                     the required notice period, the indemnitor shall be
                     entitled to have sole control over the defense and all
                     negotiations for the compromise or settlement of such
                     claim; provided that (i) the indemnitee shall be entitled
                     to participate in the defense of such claim and to employ
                     counsel at its own expense to assist in the handling of
                     such claim, and (ii) the indemnitor shall obtain the prior
                     written approval of the indemnitee before entering into any
                     settlement of such claim or ceasing to defend against such
                     claim. The indemnitor shall not be required to indemnify
                     the indemnitee for any amount paid or payable by the
                     indemnitee in the settlement of any claim for which the
                     indemnitor has delivered a timely Notice of Election if
                     such amount was agreed to without the written consent of
                     the indemnitor.

              (c)    PROCEDURE WHERE NO NOTICE OF ELECTION IS DELIVERED. If the
                     indemnitor does not deliver a Notice of Election relating
                     to any claim within the required notice period, the
                     indemnitee shall have the right to defend the claim in such
                     manner as it may deem appropriate, at the cost and expense
                     of the indemnitor. The indemnitor shall promptly reimburse
                     the indemnitee for all such costs and expenses.

       14.    DISPUTE RESOLUTION. If a dispute arises between the Parties
relating to this Agreement, the following procedure shall be implemented except
that either Party may seek injunctive relief from a court where appropriate in
order to maintain the status quo while this procedure is being followed:

       14.1   INITIAL MEETING. The Parties shall hold a meeting promptly,
       attended by persons with decision-making authority regarding the dispute,
       to attempt in good faith to negotiate a resolution of the dispute;
       provided, however, that no such meeting shall be deemed to vitiate or
       reduce the obligations and liabilities of the Parties or be deemed a
       waiver by a Party hereto of any remedies to which such Party would
       otherwise be entitled hereunder.

       14.2   MEDIATION. If within thirty (30) days after such meeting the
       Parties have not succeeded in negotiating a resolution of the dispute,
       they agree to submit the dispute to mediation in accordance with the
       then-current Model Procedure for

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<PAGE>

                                       10

       Mediation of Business Disputes of the Center for Public Resources and to
       bear equally the costs of the mediation.

       14.3   APPOINTMENT OF MEDIATOR. The Parties will jointly appoint a
       mutually acceptable mediator, seeking assistance in such regard from the
       Center for Public Resources if they have been unable to agree upon such
       appointment within twenty (20) days from the conclusion of the
       negotiation period.

       14.4   ARBITRATION. The Parties agree to participate in good faith in the
       mediation and negotiations related thereto for a period of thirty (30)
       days . If the Parties are not successful in resolving the dispute through
       the mediation, then the Parties agree to submit the matter to binding
       arbitration or a private adjudicator.

       14.5   GENERAL PROCEDURE. Mediation or arbitration shall take place in
       Pittsburgh, Pennsylvania unless otherwise agreed by the Parties.
       Equitable remedies shall be available in any arbitration. Punitive or
       exemplary damages shall not be awarded. This Section is subject to the
       Federal Arbitration Act, 9 U.S.C.A. Section 1 ET SEQ.

       14.6   ARBITRATION PROCEDURE. In the event of arbitration, the Parties
       agree that the award of the arbitrator shall be (1) the sole and
       exclusive remedy between them regarding any claims, counterclaims, or
       issues presented to the arbitrator; (2) final and subject to no judicial
       review; and (3) made and shall promptly be payable in U.S. dollars free
       of any tax, deduction, or offset. The Parties further agree that any
       costs, fees, or taxes incident to enforcing the award shall, to the
       maximum extent permitted by law, be charged against the Party resisting
       such enforcement. The Parties hereto agree that judgment on the
       arbitration award may be entered and enforced in any court of competent
       jurisdiction. Each Party shall, except as otherwise provided herein, be
       responsible for its own costs, including legal fees, incurred in the
       course of any arbitration proceedings. The fees of the arbitrator shall
       be divided evenly between the Parties.

       15.    MISCELLANEOUS.

       15.1   FORCE MAJEURE. Either Party's delay or failure to perform (except
       for a Party's payment obligation) shall be excused for so long as, and to
       the extent that, it is prevented from performing any of its obligations
       under this Agreement, in whole or in part, as a result of delays caused
       by fire, flood, earthquake, elements of nature or acts of God, riots,
       civil disorders, rebellions or revolutions in any country, or any other
       cause beyond the reasonable control of such Party (a "Force Majeure
       Event"). The non-performing Party shall promptly notify the other Party
       of the circumstances causing its delay or failure to perform and of its
       plan and efforts to implement a workaround solution. For as long as such
       circumstances prevail, the Party whose performance is delayed or hindered
       shall continue to use reasonable efforts to minimize the length and
       effect of

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                                       11

       delays and shall re-commence performance after the cessation of the Force
       Majeure Event.

       15.2   BINDING NATURE AND ASSIGNMENT. This Agreement shall be binding on
       the Parties hereto and their respective successors and assigns. Except as
       otherwise provided in this Agreement, neither Party shall assign this
       Agreement or delegate such Party's obligations hereunder without the
       prior written consent of the other, except that either Party may assign
       this Agreement without the consent of the other Party to an entity that
       acquires all, or substantially all, of the business of the assigning
       Party (provided that such entity is not a competitor of the other Party).

       15.3   ENTIRE AGREEMENT, AMENDMENT, WAIVER. This Agreement, including the
       Attachments referred to herein and attached hereto constitutes the entire
       agreement between the Parties with respect to the subject matter hereof
       and supersedes all prior agreements, whether written or oral, with
       respect to the subject matter contained in this Agreement. No amendment
       or modification or waiver of a breach of any term or condition of this
       Agreement shall be valid unless in a writing signed by each of the
       Parties. The failure of a Party to enforce, or the delay by either of
       them in enforcing, any of their respective rights under this Agreement
       will not be deemed a continuing waiver or a modification of any rights
       hereunder and a Party may, within the time provided by applicable law and
       consistent with the provisions of this Agreement, commence appropriate
       legal proceedings to enforce any or all of its rights.

       15.4   NOTICES. All notices, requests, demands, and determinations under
       this Agreement (other than routine operational communications), shall be
       in writing and shall be deemed duly given (i) when delivered by hand,
       (ii) one (1) day after being given to an express, overnight courier with
       a reliable system for tracking delivery, or (iii) six (6) calendar days
       after the day of mailing, when mailed by United States mail, registered
       or certified mail, return receipt requested, postage prepaid, and
       addressed as follows:

       In the case of Ford:        Ford Motor Company
                                   One American Road, 11th Floor
                                   Dearborn, Michigan 48126
                                   Attention:  Vice President, Material Planning
                                    and Logistics

       With copies to:             Ford Motor Company
                                   One American Road
                                   Dearborn, Michigan 48126
                                   Attention:  Assistant Tax Officer, Corporate
                                    Finance

                                   Ford Motor Company

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<PAGE>

                                       12

                                   Office of the General Counsel
                                   One American Road, WHQ Suite 320
                                   Dearborn, Michigan 48126
                                   Attention:  Assistant General Counsel --
                                    Transactions

       In the case of Vastera:     Vastera Solutions Services Corporation
                                   45025 Aviation Drive
                                   Suite 200
                                   Dulles, Virginia 20190-5602
                                   Attention:  General Counsel

       With copies to:             Vastera, Inc.
                                   45025 Aviation Drive
                                   Dulles, Virginia 20190-5602
                                   Attention:  Vastera designated Liaison

       Any Party may from time to time change its address or designee for
       notification purposes by giving the other prior written notice of the new
       address or designee and the date upon which it will become effective.

       15.5   COUNTERPARTS. This Agreement may be executed in several
       counterparts, all of which taken together shall constitute one single
       agreement between the Parties hereto.

       15.6   SEVERABILITY. In the event that any provision of this Agreement
       conflicts with the law under which this Agreement is to be construed or
       if any such provision is held invalid by an arbitrator or a court with
       jurisdiction over the Parties, such provision shall be deemed to be
       restated to reflect as nearly as possible the original intentions of the
       Parties in accordance with applicable law. The remainder of this
       Agreement shall remain in full force and effect.

       15.7   CONSENTS AND APPROVAL. Except where expressly provided as being in
       the discretion of a Party, where agreement, approval, acceptance,
       consent, or similar action by either Party is required under this
       Agreement, such action shall not be unreasonably delayed or withheld.

       15.8   SURVIVAL. Any provision of this Agreement which contemplates
       performance or observance after any termination or expiration of this
       Agreement (in whole or in party) shall survive any termination or
       expiration of this Agreement and continue in full force and effect.

       15.9   THIRD PARTY BENEFICIARIES. This Agreement is entered into solely
       between, and may be enforced only by, Ford and Vastera. This Agreement
       shall not be deemed to create any rights in third parties, including
       employees, suppliers and

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<PAGE>

                                       13

       customers of a Party, or to create any obligations of a Party to any such
       third parties.

       15.10  CHOICE OF LAW. This Agreement and performance under it shall be
       governed by and construed in accordance with the laws of the State of
       Michigan without regard to its choice of law principles.

       15.11  NEGOTIATED TERMS. The Parties agree that the terms and conditions
       of this Agreement are the result of negotiations between the Parties and
       that this Agreement shall not be construed in favor of or against any
       Party by reason of the extent to which any Party or its professional
       advisors participated in the preparation of this Agreement.

       15.12  TITLES AND HEADINGS. Titles and headings of Sections of this
       Agreement are for convenience only and will not affect the construction
       of any provision of this Agreement.

       15.13  NO INDIVIDUAL AUTHORITY. Neither Party shall, without the express,
       prior written consent of the other Party, take any action for or on
       behalf of or in the name of the other Party, assume, undertake, or enter
       into any commitment, debt, duty or obligation binding upon the other
       Party, except for actions taken pursuant to agreements entered into
       between such Party or its Affiliates and any other Party.

       15.14  PARENT GUARANTY. In connection with this Agreement, Ford and
       Vastera, Inc. have executed a Parent Guaranty, attached hereto as
       Attachment D.

       16.    HSR ACT. Both Parties' obligations under this Agreement are
subject to the termination or expiration of any HSR Act waiting period
applicable to the Stock Transfer Agreement among Ford, Vastera and Vastera, Inc.
dated as of even date herewith. "HSR Act" is defined as the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended, and the related regulations and
published interpretations.

       17.    SEC. Both Parties' obligations under this Agreement are subject to
the receipt by Vastera of written approval or concurrence from the United States
Securities and Exchange Commission of its treatment of the transactions
contemplated by the Stock Transfer Agreement among Ford, Vastera, and Vastera,
Inc. dated as of even date herewith as a business combination applying the
purchase method of accounting under generally accepted accounting principles,
provided that the foregoing condition precedent shall be deemed waived by both
Parties in the event that no such written approval or concurrence has been
received by Vastera within sixty (60) days of the Effective Date.

              IN WITNESS WHEREOF, the Parties hereto have duly executed this
Agreement as of the day and year first above written.

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<PAGE>

                                       14

FORD MOTOR COMPANY                  VASTERA SOLUTIONS SERVICES

                                                      CORPORATION

By: /s/ Frank Taylor                By: /s/ Arjun Rishi
   ----------------------------        -------------------------------

Title:                              Title:
      -------------------------           ----------------------------

CONFIDENTIAL

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