Document:

FIRST AMENDMENT TO
                                   LINE LETTER

          This  FIRST  AMENDMENT TO LINE LETTER, dated as of May _____, 2000, is
between  RZB  FINANCE  LLC ("RZB") and PENN OCTANE CORPORATION (the "Borrower").

                               W I T N E S S E T H
                               -------------------

          WHEREAS, RZB and the Borrower are parties to a Line Letter dated as of
October  14,  1997  and modified by a letter dated October 21, 1999 (as amended,
the  "Line  Letter";  capitalized terms used herein having the meanings ascribed
thereto  in  the  Line  Letter  unless  otherwise  defined  herein);

          WHEREAS, the Line Letter provides for a $10,000,000 uncommitted credit
facility  (the  "Uncommitted  Credit  Facility);

          WHEREAS,  the  Borrower  as  requested  that  RZB increase the maximum
amount  of  the  Uncommitted Credit Facility, and the Borrower and RZB desire to
amend  the  Line  Letter  in  other  respects;

          NOW,  THEREFORE,  the  parties  hereto  hereby  agree  as  follows:

          SECTION  1.     AMENDMENT.
                          ----------

          1.     The  Line  Letter is hereby amended, effective on the Effective
Date  referred  to  in  Section  2  hereof,  as  follows:

          (a)     Upon  execution  and  delivery  of the Participation Agreement
between  RZB  and  Bayerische  Hypo-und Vereinsbank Aktiengesellschaft, New York
Branch  ("HVB") (the "Participation Agreement"), the Uncommitted Credit Facility
shall  increase  to  Twenty  Million  Dollars  ($20,000,000).

          (b)     Notwithstanding  the  Participation  Agreement,  the  Borrower
shall  be  permitted,  except  as  otherwise  expressly  provided  in this First
Amendment  to  Line Letter, to send all notices, request and documents solely to
RZB  and not to HVB, and to act on instruction, requests and directions from RZB
alone.  The  Borrower acknowledges that pursuant to the Participation Agreement:
(i)  each  Loan  and  L/C  shall  be made or issued (as the case may be) only if
approved by both RZB and HVB in accordance with the Participation Agreement, and
(ii)  either  RZB  or  HVB  shall have the right to cause RZB to make any demand
under  Section  4  of  the  Line Letter.  RZB hereby agrees that if the Borrower
shall  make  payment  to  RZB  in  accordance  with the Line Letter and the Loan
Documents  of  amounts payable to RZB thereunder, including, without limitation,
payments  to  RZB  which RZB is obligated to pay to HVB under the Line Letter or
the  Participation

<PAGE>
Agreement,  the  Borrower  shall  have not further obligation to HVB even if RZB
fails  to  pay  any such amount to HVB, provided that if any such payment to RZB
must  be  disgorged  or  returned by RZB in connection with any bankruptcy case,
similar  to  proceeding  or  otherwise,  the  Borrower's  obligation  shall  be
reinstated  as  if  such  returned  payment  had  never  been  paid  to  RZB.

          (c)     (i)     The  Borrower  shall  simultaneously deliver to HVB at
the  following  address  a  copy  of each request for a Loan or L/C given to RZB
pursuant  to  Section 3 of the Line Letter and all financial statements, notices
and  reports delivered to RZB pursuant to or in connection with the Line Letter:

             Bayerische  Hypo-und  Vereinsbank
             Aktiengesellschaft,  New  York  Branch
             150  East  42nd  Street
             New  York,  New  York  10017-4679
             Attn:  Mr.  John  Coussa,  Managing  Director
             Telecopies  No.  (212)  672-5592

together with all such documents and information relating to such request as HVB
shall  require.  The Borrower expressly consents to RZB's delivery to HVB of any
documents  and  information  relating  to  the  Borrower now or hereafter in the
possession  of  RZB.

          (ii)     Notwithstanding anything to the contrary contained herein, in
the  Line  Letter  or in any other Loan Document, including, without limitation,
the  General  Security Agreement dated October 17, 1997 between the Borrower and
RZB:

     (A)     Provided  that  no  Event  of Default under any Loan Document shall
have  occurred  and  be  continuing,  no event that with the giving of notice or
lapse  of  time  or  both  would  constitute such an Event of Default shall have
occurred  and  be continuing and no demand for payment of any obligations of the
Borrower  shall  have been made by RZB, RZB shall, upon request of the Borrower,
execute  and  deliver  an agreement reasonable satisfactory to RZB subordinating
RZB's  mortgage  lien  and security interest on the land, buildings and fixtures
(but  no  other  assets  contained  thereon  or  therein)  constituting  (x) the
Borrower's  terminal  in  Brownsville, Texas and (y) the Borrower's pipeline, to
any  mortgage  line and security interest of a third party unaffiliated with the
Borrower  (the  "New Lender") which secures financing provided by the New Lender
to  the Borrower after the date hereof.  Such agreement shall contain a covenant
by  the  New  Lender  to  transport  at no cost to RZB from such terminal and/or
through  such  pipeline  all  inventory  of  the  Borrower financed by RZB.  The
foregoing is not a consent by RZB to any additional financing or indebtedness of
the  Borrower.

     (B)     In the event the Borrower intends to obtain additional financing or
incur  additional  indebtedness, the Borrower shall notify RZB and request RZB's
consent.  RZB  agrees  to  consider  such  request,  but  the Borrower expressly
acknowledges  and  agrees  that:  (x)  RZB shall have such sole discretion after
consultation  with HVB to grant or deny such consent or impose conditions on the

<PAGE>
grant  of such consent, (y) so long as the Participation Agreement is in effect,
RZB cannot grant such consent without HVB's approval and (z) neither RZB nor HVB
has  committed  or  agreed  to  grant  such  consent,  and such consent shall be
effective  only  if  in  writing  and  executed  by  RZB.

     (d)  The following is added after Section 5 of the Line Letter:

          "All  payments  of  principal,  interest, and other sums in connection
with  this  letter  agreement,  the  Loans  and  L/C's  or  in  respect  of  the
participation  of  HVB shall be made by the Borrower to RZB or by RZB to HVB, as
applicable, free and clear of, and without deduction or withholding for, any and
all  present and future taxes, levies, duties or withholdings of any kind or, if
any  deduction  or  withholding  from  any amount payable hereunder or under any
other  Loan  Document or in respect of the participation of HVB or in connection
herewith  or therewith shall be legally required, such amount shall be increased
by the Borrower as may be necessary so that after making all required deductions
or  withholdings  (including deductions or withholdings applicable to additional
amounts payable under this paragraph 5) RZB or HVB shall receive an amount equal
to the amount to would have received had no such deductions or withholdings been
required.  The  Borrower  shall  pay to RZB promptly upon HVB's request, and RZB
shall  promptly  pay to HVB, any amount payable to HVB pursuant to the preceding
sentence,  but  RZB  shall have no liability to pay any such increased amount to
HVB  which  is  not  received  by  RZB  from  the  Borrower."

          (e)     Section  9  (c) of the Line Letter is amended by (i) adding in
the  section  line,  after  "RZB",  the  words "and HVB", and (ii) adding in the
fourth  line,  after  "Note,"  the  words  "The  Participation  Agreement,".

          (f)     Section  9  (d)  of  the  Line Letter is hereby amended in its
entirety  to  read  as  follows:

               "(d)     (i)     If  RZB  or  HVB  shall have determined that the
applicability  of  the  any  law,  rule,  regulation  or  guideline (domestic or
foreign)  adopted  (whether  before  or  after  the  date hereof) pursuant to or
arising  out  of  the  July  1988  report  of  the  Basle  Committee  on Banking
Regulations  and  Supervisory  Practices  entitled "International Convergence of
Capital  Measurement  and  Capital  Standards",  or  the adoption after the date
hereof  of  any  other law, rule, regulations or guideline (domestic or foreign)
regarding  capital  adequacy,  or  any changes in any of the foregoing or in the
enforcement  or  interpretation or administration of any of the foregoing by any
court  or  any governmental authority, central bank or comparable agency charged
with  the enforcement or interpretation or administration thereof, or compliance
by  RZB  or  HVB or any corporation or other entity which directly or indirectly
controls  RZB  or  HVB  (each  such  corporation  or other entity is hereinafter
referred  to  as a "Controlling Person") (or any lending office of RZB or HVB or
any  Controlling  Person),  with  any  request  or  directive  regarding capital
adequacy  (whether or not having the force of law) of any such court, authority,
central  bank or comparable agency, has or would have the effect of reducing the
rate  of return on RZB's or HVB's (as the case may be) capital or on the capital
of a Controlling Person, if any, as a consequence of its issuance or maintenance

<PAGE>
of any L/C or its obligations (if any) under this Agreement or the Participation
Agreement  to  a  level  below  that which RZB or HVB or such Controlling Person
could  have  achieved but for such applicability, adoption, change or compliance
(taking  into consideration RZB's or HVB's (as the case may be) policies and the
policies  of  such  Controlling  Person  with respect to capital adequacy) by an
amount deemed by RZB or HVB to be material, then, upon demand by RZB or HVB, the
                                            -----
Borrower  shall  pay  to  RZB  from time to time as specified by RZB or HVB such
additional  amount  or amounts as will compensate RZB or HVB or such Controlling
Person for any such reduction suffered.  Any such amount paid to RZB relating to
HVB or a Controlling Person of HVB shall be promptly paid by RZB to HVB pursuant
to  the  Participation  Agreement  between  them.

          (ii)     If  any  change  in  law,  rule,  regulations  or  guideline
(domestic  or  foreign)  or in the enforcement, interpretation or administration
thereof  by  any court or any governmental authority, central bank or comparable
agency  charged  with  the interpretation or administration thereof shall at any
time  (A)  impose,  modify  or  deem  applicable any reserve, special deposit or
similar  requirement (including, without limitation, pursuant to Regulation D of
the  Board of Governors of the Federal Reserve System) against letters of credit
issued  by  RZB or participation therein purchased by HVB or (B) subject letters
of  credit  issued  by  RZB  or  participation  therein  purchased by HVB to any
assessment or other cost imposed by the Federal Deposit Insurance Corporation or
any successor thereto or (C) impose on RZB or HVB any other or similar condition
regarding  this  Agreement  or  any  L/C  or  the  Participation  Agreement, the
obligations  (if  any)  of  RZB  hereunder  or  the obligations of HVB under the
Participation  Agreement  and the result of any event referred to in clause (A),
(B)  or  (C)  above  shall be to increases the cost to RZB or HVB of agreeing to
issue,  issuing  or  maintaining  or  confirming  any  L/C or making, funding or
maintaining  (or  agreeing  to  fund  or  maintain) drawings under any L/C or of
participating  in  any  L/C  or  to reduce any accounts receivable by RZB or HVB
hereunder  or by HVB under Participation Agreement by an amount which RZB or HVB
shall  deem  to  be  material  (Which increase in cost or reduction shall be the
result  of the reasonable allocation by RZB or HVB of the aggregate of such cost
increases or reductions resulting from such events), then, upon demand by RZB or
                                                     ----
HVB,  the Borrower shall pay to RZB from time to time as specified by RZB or HVB
(as  the  case may be), such additional amount or amounts as will compensate RZB
or  HVB  (as  the  case  may  be)  for such increased cost from the date of such
change.  Any  such  amount paid to RZB relating to HVB shall be promptly paid by
RZB to HVB pursuant to the Participation Agreement between them.  The Borrower's
obligation  to  pay  compensation  contained  in  the  subsection  (ii) shall be
applicable  as  well  to  any  amount  RZB may be obligated to pay any financial
institution  which  confirms or advises any L/C and which incurs or is subjected
to  any  increased  cost  or  reduction of amounts receivable as a result of the
imposition,  modification  or applicability of any such reserve, special deposit
or  similar requirement, the subjecting of L/C's to any such assessment or other
costs,  or  the  imposition  of  any  such  other  or  similar  condition.

          (iii)     The  provisions  of  this  subsection  (d) shall survive the
termination  of  this  Agreement.

<PAGE>
          (iv)     RZB or HVB shall notify the Borrower within 3 months after it
becomes  aware of its right to claim any amount under paragraphs (d) (i) or (ii)
above,  provided  that (A) if such lender fails to so notify the Borrower within
        --------
such  3  month period, such lender shall not be entitled to claim any additional
amounts  pursuant  to  this  subsection for any period ending on a date which is
prior  to  3  months  before  such  notification  plus  any additional period of
retroactive  effect  of  the  law,  rule, regulation or guideline referred to in
paragraph  (d)  (i)  or  (ii)  above, and (B) neither RZB nor HVB shall have any
right  to  assert  a claim for any amount under paragraphs (d) (i) or (ii) after
the  date  which  is 3 months after payment in full of all Loans, obligations in
respect  of  L/C's  and  other obligations hereunder and the termination of this
Agreement."

          (e)     The  following  new Section 9 (j) is added to the Line Letter:

          "(j)     No  Claim  may  be  made  by the Borrower or any other person
against RZB or HVB or the officers, directors, employees or agents of RZB or HVB
for  any  special, indirect, punitive or consequential damages in respect of any
claim  for breach of contract or any other theory of liability arising out of or
related  to  the transactions contemplated by this Agreement, any obligations of
the  Borrower  and/or  any  of  the  collateral,  or  any act, omission or event
occurring  in connection therewith, and the Borrower hereby waives, releases and
agrees  not  to  sue  upon  any  claim  for  any  such  damages."

          (f)     The following is added to the end of Section 9 (f) of the Line
Letter:

          "HVB  shall  have  a  right  of  set-off and banker's lien to the same
extent  as  if its participation under the Participation Agreement were a direct
loan  to  the  Borrower."

          SECTION  2.  EFFECTIVENESS  OF  AMENDMENT.
                       -----------------------------

          This  First  amendment  shall  become  effective  on  the  date  (the
"Effective Date") on which the following conditions precedent shall be fulfilled
to  the  satisfaction  of  RZB:

          RZB  shall  have  received  this  First Amendment duly executed by all
parties  hereto,  a  replacement  Promissory  Note  in  the  maximum  amount  of
$20,000,000,  amendments  to  the  Deeds  of  Trust  previously  executed by the
Borrower  reflecting  the  increase in the Uncommitted Credit Facility, and such
corporate  authorization  documents  a  RZB  may  request.

          SECTION  3.  EFFECT  OF AMENDMENT; RATIFICATION: REPRESENTATIONS; ETC.
                       ---------------------------------------------------------

               (a) On and after the date hereof, when counterparts of this First
Amendment  shall  have  been  executed  by  all  parties  hereto, (i) this First

<PAGE>
Amendment  shall  be  a part of the Line Letter, (ii) all references to the Line
Letter  in the Line Letter and the other Loan Documents shall be deemed to refer
to  the Line Letter as amended by this First Amendment, and (iii) the term "this
Agreement"  and  the  words "hereof", "herein", "hereunder" and words of similar
import,  as  used  in  the  Line  Letter,  shall mean the Line Letter as amended
hereby.

               (b)     Except  as  expressly  set  forth  herein,  this  First
Amendment  shall  not constitute an amendment, waiver or consent with respect to
any  provision  of  the  Line Letter, as amended hereby, and the Line Letter, as
amended  hereby,  and all other Loan Documents are hereby ratified, approved and
confirmed  in all respects.  The Borrower expressly acknowledges and agrees that
it  has  no  defense,  counterclaim,  right  of  setoff or the claim under or in
connection with the Line Letter or the Loan Documents as of the date hereof that
would  reduce  or  impair  its  obligations  thereunder.

               (c)     In  order  to  induce  RZB  to  enter  into  this  First
Amendment,  the  Borrower  represents  and warrants to RZB that before and after
giving  effect  to  the  execution  and  delivery  of  this  First  Amendment:

               (i)     the  representations  and warranties set forth in section
                       8 of the line letter and in the other Loan Documents  are
                       true  and correct.

               (ii)    no  Event of Default under the General Security Agreement
                       executed  by  the Borrower, event under Section 13 of the
                       Continuing  Agreement  for Letters  of Credit executed by
                       the  Borrower or event or condition that, with the Giving
                       of  notice  or  passage of time or both, would constitute
                       such an event of Default  or  other  event  has  occurred
                       and  is  continuing.

               (iii)   This First Amendment has  been  duly  authorized  by  all
                       necessary corporate action of the Borrower, has been duly
                       executed and delivered by the Borrower and is  the  valid
                       and  binding obligation of the Borrower, enforceable  in
                       accordance  with  its  terms.

          SECTION  4.  NEW  YORK  LAW.
                        --------------

          This  First  Amendment  shall  be  construed  in  accordance  with the
governed  by the laws of the State of New York, with out regard to the conflicts
of  laws  principles  of  said  State.

          SECTION  5.  SEVERABILITY.
                       -------------

          If  any  provision  hereof  is  invalid  and  unenforceable  in  any
jurisdiction,  then,  to  the  fullest  extent  permitted  by law, (i) the other
provisions hereof shall remain in full force and effect in such jurisdiction and
shall be liberally construed in order to carry out the intentions of the parties
hereto as nearly as may be possible, and (ii) the invalidity or unenforceability
of  any  provision  hereof  in any jurisdiction shall not affect the validity or
enforceability  of  such  provision  in  any  other  jurisdiction.

          SECTION  6.  COUNTERPARTS.
                       -------------

          This  First  Amendment  may  be  executed  by  the  parties  hereto
individually  or  in any combination, in one or more counterparts, each of which
shall be an original and all of which shall together constitute one and the same
amendment.  Signatures  of  the  parties  may  appear  on separate counterparts.

          IN  WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  First
Amendment  to  be  duly  executed  as  of  the day and year first above written.

                                                  PENN  OCTANE  CORPORATION

                                                  By:
                                                     ---------------------------

                                                  By:
                                                     ---------------------------

                                                  RZB  FINANCE  LLC

                                                  By:
                                                     ---------------------------

                                                  By:
                                                     ---------------------------

          The  undersigned has executed the Guaranty and Agreement dated October
14,  1997  (the  "Guaranty").  The  undersigned hereby consents to the foregoing
First  Amendment, ratifies the Guaranty executed by him and confirms that all of
his  obligations  under  such  Guaranty  are  and shall remain in full force and
effect, notwithstanding such First Amendment, and shall apply to all obligations
and liabilities under the Line Letter and the Loan Documents, as amended by such
First  Amendment.

                                                  ------------------------------
                                                  Jerome  Richter

<PAGE><PAGE>

                                                                   EXHIBIT 10.18

                       CONFIDENTIAL TREATMENT REQUESTED

                                    [LOGO]
                             SourcingLink.net(TM)

                              SERVICES AGREEMENT

     This Services Agreement (the "Agreement") is entered into as of March 29,
2000, and effective as of March 31, 2000 (the "Start Date"), by and between
SourcingLink.net, Inc., a Delaware corporation, with its principal place of
business at 16855 West Bernardo Drive, Suite 260, San Diego, California, 92127
USA ("SNET") and Carrefour S.A., a corporation organized in the country of
France, with its Carrefour headquarters located at 6, avenue Raymond Poincare,
BP 419.16-75769, Paris Cedex 16, France ("Carrefour," and together with SNET,
the "parties," each individually, a "party").

                                R E C I T A L S

     A.  Carrefour is the largest international retailer of general merchandise
and intends to implement and utilize the Internet based application services of
GlobalNetXchange ("GNX") to facilitate its merchandise sourcing needs.

     B.  SNET is engaged in the business of developing and providing Internet
based merchandise sourcing solutions and services.

     C.  Carrefour desires to engage SNET to provide support services related to
Carrefour's use and application of GNX technology and services as set forth
herein, and SNET desires to provide such services.

                               A G R E E M E N T

     NOW, THEREFORE, in consideration of the covenants hereinafter stated, the
parties agree as follows:

     1.  Services of SNET.  Upon the terms and subject to the conditions
         ----------------
contained herein, SNET agrees to provide the services as set forth on Schedule A
annexed hereto (the "Services").  The Services shall be provided in accordance
with the provisions of this Agreement and Schedule A.  Schedule A includes (i) a
statement of the scope of the work to be performed and (ii) a schedule of
compensation.  Schedule A may include such additional terms and conditions as
the parties may wish to include and may be modified from time to time by mutual
agreement of the parties.  As part of the Services, SNET shall be responsible
for maintaining and updating Schedule A.

<PAGE>

     2.   Support Obligations of Carrefour. Upon the terms and subject to the
          --------------------------------
conditions contained herein, Carrefour agrees to provide SNET the support
services as set forth on Schedule B annexed hereto (the "Carrefour Support
Obligations") to enable SNET to perform the Services.  The Carrefour Support
Obligations shall be provided in accordance with the provisions of this
Agreement and Schedule B, which includes a statement of the scope of support
obligations to be performed by Carrefour.

     3.   Compensation.
          ------------

          3.01 Service Fees.  Upon the terms and subject to the conditions
               ------------
contained herein, Carrefour agrees to pay to SNET, in consideration of the
Services set forth on Schedule A, the compensation set forth on Schedule A.

          3.02 Expenses.  Payment for expenses incurred by SNET in performance
               --------
of the Services shall be made as set forth on Schedule A.  Such expenses shall
be limited to reasonable out-of-pocket expenses necessarily and actually
incurred by SNET in the performance of the Services hereunder, provided that:
(i) the expenses have been detailed and submitted on a form reasonably
acceptable to Carrefour for review and approval and (ii) if requested by
Carrefour, SNET shall submit supporting documentation in addition to the
approved expense form.

     4.   Other Agreements.
          ----------------

          4.01 GNX Service Agreement.  Carrefour shall use its reasonable best
               ---------------------
efforts to cause GNX to enter into servicing agreements for the performance of
services by SNET similar to the Services set forth on Schedule A, provided that
SNET is performing its obligations hereunder to the reasonable satisfaction of
Carrefour. Carrefour's obligation set forth in this Section 4 shall terminate
upon termination of this Agreement pursuant to Section 6 below.

          4.02 Software Licensing Agreement.  Carrefour shall enter into a
               ----------------------------
Software Licensing Agreement with SNET provided, however, that such Software
Licensing Agreement shall be (i) reasonably satisfactory to both parties and
(ii) on terms and conditions reasonably similar to those terms and conditions
set forth in the form of agreement attached hereto as Exhibit A.  If such
agreement has not been consummated by the date of this Agreement, then Carrefour
and SNET each hereby agrees to use its best efforts to consummate such agreement
expeditiously, with an expectation that such consummation shall occur within 90
to 120 days of the date hereof.

     5.   Term and Renewal.  This Agreement shall commence on the Start Date and
          ----------------
shall continue in full force and effect for an initial term of three years,
unless and until terminated in accordance with the provisions of this Agreement
or Schedule A.  Upon expiration of the initial three-year term, this Agreement
may be renewed by mutual agreement of the parties upon terms mutually
satisfactory to both parties.

     6.   Termination. This Agreement may be terminated only in accordance with
          -----------
the following:

                                       2
<PAGE>

          6.01 Schedule A.  The Agreement may be terminated in accordance with
               ----------
the relevant provisions, if any, included in Schedule A.

          6.02 Nonpayment.  If SNET has not received payment of any amount
               ----------
payable by Carrefour under this Agreement by its due date, and if SNET still has
not received such payment within fifteen business days after receipt by
Carrefour of written notice of such nonpayment, SNET may terminate this
Agreement by delivery of written notice of termination to Carrefour.  If SNET
terminates this Agreement pursuant to this Section 6.02, then Carrefour shall
pay to SNET the minimum amounts of compensation payable to SNET pursuant to
Section 3.01 and Schedule A hereof for the remainder of the full three year term
from such date of cancellation.

          6.03 Material Breach.  In the event of any material breach of any term
               ---------------
or provision of this Agreement by either party, then the non-breaching party may
cancel this Agreement after receipt by the party in breach of 30 days prior
written notice thereof; provided, however, that this Agreement shall not
terminate at the end of the 30 days notice period if the party in breach has
cured the breach to the reasonable satisfaction of the other party prior to the
expiration of the thirty day period.

          6.04 Bankruptcy.  Either party may terminate this Agreement upon
               ----------
receipt of written notice to the other party if either party is adjudicated
bankrupt, files a voluntary petition of bankruptcy, makes a general assignment
for the benefit of creditors, is unable to meet its obligations in the normal
course of business as they fall due or if a receiver is appointed on account of
insolvency.

          6.05 Effect of Termination. Except to the extent as otherwise provided
               ---------------------
in Section 6.02 hereof, upon any termination of this Agreement, SNET shall be
entitled to receive payment, pursuant to Section 3and Schedule A hereof, for
Services rendered through the end of the month in which the date of termination
occurs.

          6.06 Receipt of Written Notice.  For the purposes of this Section 6,
               -------------------------
receipt of any written notice may be confirmed orally between the parties
through appropriate representatives of the parties, including their legal
counsel.

     7.   Vendor Rating Services.  Carrefour hereby agrees to meet with
          ----------------------
representatives of SNET or its designees to evaluate SNET's Vendor Rating
Services for potential inclusion in GNX products and services; it being
acknowledged and agreed to by the parties that such inclusion shall be at the
sole discretion of GNX.

     8.   Termination of Letter Agreement.  SNET and Carrefour mutually agree to
          -------------------------------
terminate, and do hereby terminate effective as of the date of this Agreement,
the letter agreement by and between SNET and Carrefour, dated as of December 9,
1999 (the "Letter Agreement"); provided that such termination shall only be
effective upon receipt by SNET of payment on all unpaid invoices charged to
Carrefour for services performed by SNET prior the date of this Agreement
related to the Letter Agreement.  Upon termination of the Letter Agreement, and
as an express and material condition of this Agreement, each party hereby
releases and forever discharges any claims, demands, actions, damages and
liabilities, known and unknown, that each such party ever had, now has or
hereinafter may have against the other party arising from the Letter Agreement.

                                       3
<PAGE>

     9.   Logos. Carrefour shall use its reasonable best efforts to cause GNX to
          -----
list and display SNET's SourcingLink logo on the GNX website Partnership Page.

     10.  Joint Press Release. SNET and Carrefour shall issue joint press
          -------------------
release regarding this Agreement.

     11.  Proprietary Rights. Unless otherwise expressly provided in Schedule
          ------------------
A hereof, all work performed pursuant to paragraph 1(c)(ii) of Schedule A
hereto, and all materials and products developed for Carrefour by SNET pursuant
to paragraph 1(c)(ii) of Schedule A hereto, are the property of SNET, and all
title and interest therein shall vest in SNET.  To the extent that title to any
such works may not, by operation of law, vest in SNET, all right, title and
interest therein, including, without limitation, all copyrights, trade secrets,
trademarks, trade names, patents and other proprietary rights, are hereby
irrevocably assigned to SNET.  Carrefour agrees to give SNET reasonable
assistance, at Carrefour's expense, to perfect the rights defined hereunder.
Any and all inventions, discoveries, processes, methods, designs and know-how,
whether or not copyrightable or patentable, which SNET may conceive or make
either alone or in conjunction with others, during the term of this Agreement,
shall be the sole and exclusive property of SNET; and Carrefour, whenever
requested to do so by SNET or any subsidiary and/or affiliate thereof, and
without further compensation or consideration, shall promptly execute any and
all applications, assignments and other instruments which SNET shall deem
necessary in order to apply for and obtain copyrights and/or letters patent of
the United States and of foreign countries for said inventions and discoveries,
and in order to assign and convey to SNET the sole and exclusive right, title
and interest in and to said inventions, discoveries, processes, methods, designs
and know-how, or any applications, copyrights, or patents thereof.

Unless otherwise expressly provided in Schedule A hereof, all work performed
pursuant to paragraphs 1(a), 1(b) 1(c)(i) and 1(d) of Schedule A hereto, and all
materials and products developed for Carrefour by SNET pursuant to paragraphs
1(a), 1(b) 1(c)(i) and 1(d) of Schedule A hereto, are the property of Carrefour,
and all title and interest therein shall vest in Carrefour. To the extent that
title to any such works may not, by operation of law, vest in Carrefour, all
right, title and interest therein, including, without limitation, all
copyrights, trade secrets, trademarks, trade names, patents and other
proprietary rights, are hereby irrevocably assigned to Carrefour. SNET agrees to
give Carrefour reasonable assistance, at Carrefour's expense, to perfect the
rights defined hereunder. Carrefour hereby grants SNET the right to use any such
works or their derivatives for the purpose of assisting other GNX retailers and
their suppliers to participate and operate on the GNX

                                       4
<PAGE>

     12.  Confidentiality.  SNET acknowledges that it will receive information
          ---------------
and trade secrets designated by Carrefour as confidential in the course of the
performance of the Services, and Carrefour acknowledges that it may receive
information and trade secrets designated by SNET as confidential in the course
of the performance of the Services ("Confidential Information"). SNET and
Carrefour each hereby agrees to maintain the secrecy, and to cause their
employees to maintain the secrecy, of the other's Confidential Information and
each hereby agrees not to use it except in performing the Services and not to
disclose it to anyone who does not have a need to know it any Confidential
Information to perform under this Agreement. Confidential Information shall not
include any information which is publicly available at the time of disclosure or
subsequently becomes publicly available through no fault of the recipient party
or is rightfully acquired by the recipient party from a third party who is not
in breach of an agreement to keep such information confidential.  Upon
termination of this Agreement, each party shall turn over to the other party all
documents, papers and other matter in its possession or under its control that
contain or relate to such Confidential Information.  Each party acknowledges
that its disclosure of any Confidential Information of the other will give rise
to irreparable injury to the other party and/or its subsidiaries or the owner of
such information, for which monetary damages are incapable of repairing.
Accordingly, each party may seek and obtain injunctive relief against the breach
or threatened breach of the foregoing undertakings, in addition to any other
legal remedies which may be available.  Each party acknowledges and agrees that
the covenants contained herein are necessary for the protection of legitimate
business interests and are reasonable in scope and content.

     13.  Non-Solicitation.  During the term of this Agreement and for one year
          ----------------
thereafter, each party hereby agrees that it will not solicit or make offers of
employment or enter into consulting relationships with employees or consultants
of the other party.

     14.  Assignment.  This Agreement shall be binding upon the party's
          ----------
respective successors and assigns.  Neither party may assign any of its
obligations hereunder without the prior written consent of the other which may
be withheld in such party's sole discretion; provided that Carrefour may assign
its rights and obligations under this Agreement to a subsidiary or an affiliate.

     15.  Notices.  All notifications and communications hereunder shall be in
          -------
writing and shall be hand delivered, sent by registered mail return receipt
requested, sent by overnight delivery service or by confirmed facsimile
transmission to the party receiving such communication to the applicable address
set forth below or such other address as may be specified to the other party in
writing:

     To SNET:
     -------

     SourcingLink.net
     16855 West Bernardo Drive
     Suite 260
     San Diego, California, 92127 USA
     Attn. Sean Maloy
     Facsimile: 858-385-8997

     With a copy to:

                                       5
<PAGE>

     Stradling, Yocca, Carlson & Rauth
     660 Newport Center Drive
     Suite 1600
     Newport Beach, California, 92127 USA
     Attn. Bruce Feuchter
     Facsimile: 949-725-4100

     To Carrefour:
     ------------

     Carrefour
     6, avenue Raymond Poincare
     BP 419.16-75769
     Paris Cedex 16 France
     Attn. Jeremy Hollows
           Bruce Johnson
     Facsimile: 011-33-15-5731079

     With a copy to:

     Clifford Chance Rogers & Wells LLP
     Two Hundred Park Avenue
     New York, New York 10166-0153 USA
     Attn. Patrick D. Canavan
     Facsimile: 212-878-8375

     16.  Governing Law.  This Agreement shall be governed by and construed in
          -------------
accordance with the laws of the State of Delaware.  Carrefour and SNET hereby
consent and agree that the United States will have exclusive jurisdiction over
any legal action or proceeding arising out of or relating to this Agreement, and
each party consents to the in personam jurisdiction of such courts for the
purpose of any such action or proceeding.  Each party hereby waives all rights
it has or which may hereafter arise to contest such exclusive jurisdiction of
the United States.

     17.  Modifications.  No modification, amendment, supplement to or waiver of
          -------------
this Agreement or to the Schedules attached hereto shall be binding upon the
parties unless made in writing and duly signed by both parties.

     18.  Severability.  In the event any one or more of the provisions of this
          ------------
Agreement or of the Schedules is held to be invalid or otherwise unenforceable,
the enforceability of the remaining provisions shall be unimpaired.

     19.  Waiver.  A failure of either party to exercise any rights provided for
          ------
herein shall not be deemed to be a waiver of any further right hereunder.

                                       6
<PAGE>

     20.  Complete Agreement.  This Agreement and the Schedules attached hereto
          ------------------
set forth the entire understanding of the parties as to the subject matter
herein and therein.

     21.  Attorneys' Fees.  In the event of any dispute arising hereunder the
          ---------------
prevailing party shall be entitled to recover all legal fees and expenses
reasonably incurred as a result of such dispute.

     22.  Surviving Sections.  All provisions of the following sections shall
          ------------------
survive the termination of this Agreement: 6, 11, 12, 13, 15, 16, 18, 19, 20,
and 21.

          IN WITNESS WHEREOF, the parties have executed this Services Agreement
as of the date first above written.

                                     SOURCINGLINK.NET, INC.

                                      /s/ Sean Maloy
                                     -------------------------------------------
                                     By:  Sean Maloy
                                     Its: President and Chief Executive Officer

                                    CARREFOUR S.A.

                                      /s/ Jeremy Hollows
                                     -------------------------------------------
                                     By:  Jeremy Hollows
                                     Its: Director - Information Systems

                                       7
<PAGE>

                                   Schedule A
                                   ----------

     1.   Statement of the scope of the work to be performed by SNET (the
          ---------------------------------------------------------------
"Services").  The Services shall include the following duties:
 --------

          (a)  SNET shall provide training to merchandise buyers of Carrefour
               designed to teach them to successfully use and apply the GNX
               internet based, merchandise sourcing services and technologies
               (the "GNX Technology").

          (b)  SNET shall provide training, both on-line and off-line, to
               merchandise suppliers of Carrefour designed to teach them to
               successfully use and apply the GNX Technology.

          (c)  SNET shall assist Carrefour's buyers and merchandise suppliers to
               create merchandise catalogs that conform to and are compatible
               with the technological standards of the GNX Technology and (ii)
               SNET may utilize and modify its own Catalog Creation Tools and
               other technology to accomplish this service.

          (d)  SNET shall develop customized software for Carrefour, as
               necessary, to support and facilitate the Services listed in (a)
               through (c) above, and shall upon development promptly deliver to
               Carrefour the source and object code for such customized
               software.

          (e)  SNET shall provide telephone technical support for its Services
               to Carrefour's merchandise buyers and suppliers and Carrefour, in
               English, [*] or such other times as may be mutually agreed to by
               the parties.

          (f)  SNET shall provide such other reasonable services as mutually
               agreed to by the parties. Ownership of any materials, including
               but not limited to software code and documentation, developed
               pursuant to this provision shall be as agreed.

          [*]

     2.   Schedule of compensation.
          ------------------------

          (a)  Service Fees.  The compensation to be paid by Carrefour to SNET
               ------------
               for the performance of the Services shall be based on an hourly
               rate, subject to certain aggregate minimums as described by the
               following:

               Hourly Billable Rate: [*] for each hour of Services performed,
                                     with the exact rate dependent on the level
                                     of experience of the service provider (the
                                     "Service Fees"). For example, a service
                                     provider of customer support would likely
                                     be billed at a rate of [*], while a service
                                     provider related to manager support would
                                     likely be billed at a rate of [*]. The
                                     Service Fees shall be due and payable
                                     according to the terms of their
                                     corresponding invoices.

               Monthly Minimum:      A minimum of $200,000 U.S. shall be paid to
                                     SNET every month during the term of this
                                     Agreement (the "Monthly

* Portions omitted pursuant to request for confidential treatment.

                                       8
<PAGE>

                              Minimum"), with the first payment due on the Start
                              Date, which shall represent the minimum monthly
                              amount of Service Fees payable for the Service
                              performed during the applicable month regardless
                              of the actual number of hours of Services
                              performed for such month. The Service Fees
                              incurred and payable may total more than the
                              Monthly Minimum in any given month. Service Fees
                              accrued in excess of the Monthly Minimum for such
                              month based on actual hours shall be reconciled
                              quarterly on a month-by-month basis (i.e., an
                              excess over the monthly minimum in one month may
                              not be used to offset a shortfall in Services Fees
                              for another month) and paid within thirty days of
                              the end of such quarter. [*]

               Term Minimum:  A minimum of $9,000,000 U.S. shall be paid to SNET
                              over the course of the first three years of this
                              Agreement, starting from the Start Date,
                              regardless of the actual number of hours of
                              Services performed for such three-year period. The
                              Service Fees may total more than $9,000,000 over
                              the three-year period. The shortfall, if any, of
                              the $9,000,000 term minimum over the amount of
                              Service Fees actually paid over the three-year
                              period shall be reconciled and paid within thirty
                              days of the expiration of such three-year period.

          (b)  Expenses.  Carrefour shall reimburse SNET for all reasonable out
               --------
               of pocket expenses, including by way of example, travel and
               communication expenses, within thirty days of billing as provided
               by Section 2 of this Agreement. Such expenses shall be no greater
               than the actual direct costs incurred by SNET, except that SNET
               may include a reasonable amount of its own administration
               expenses associated with such actual direct costs [*]. Such
               reimbursements shall not be regarded or included in the amount of
               Service Fees or related minimums as provided in subparagraph (a)
               above.

* Portions omitted pursuant to request for confidential treatment.

                                       9
<PAGE>

                                  Schedule B
                                  ----------

     1.   Statement of the scope of support obligations to be performed by
          ----------------------------------------------------------------
Carrefour. In anticipation and consideration of the Services rendered by SNET,
---------
Carrefour shall provide the following support services to SNET ("Carrefour's
Support Obligations"):

     (a)  Carrefour shall provide, or shall use its reasonable best efforts to
          cause GNX to provide, training to SNET personnel on Carrefour's
          practices and procedures regarding its use or intended use of the GNX
          Technology, including how to create merchandise catalogs that conform
          to and are compatible with the technological standards of the GNX
          Technology.

     (b)  Carrefour shall provide, or shall use its reasonable best efforts to
          cause GNX to provide, to SNET such documentation, technological
          standards and specifications, and other similar information reasonably
          requested by SNET to facilitate its performance of the Services.

     (c)  Carrefour shall provide SNET a 90-day rolling work schedule setting
          forth an estimate of the number of hours and detailed descriptions of
          the Services to be performed by SNET over such 90-day period. The
          first schedule shall be provided within 15 calendar days from the
          Start Date, and thereafter, an updated schedule shall be provided on a
          monthly basis.

                                       10

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