Document:

<PAGE>   1
                                                                    EXHIBIT 10.2

                                   EXHIBIT "A"

                               DATED June 28, 2001

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

                              CHU THOMAS YAN CHUEN

                                  In favour of

                          DIGITAL WORLD FINANCE LIMITED

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

                                DEED OF GUARANTEE

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

J. Chan, Yip, So & Partners
Solicitors & Notaries
31 New Henry House                  Tel     :        2877 8800
10 Ice House Street                 Fax     :        2877 8119
Central                             Ref     :        L4612/2001/JWLY
Hong Kong
<PAGE>   2
                                    I N D E X

<TABLE>
<CAPTION>
CLAUSE                                                                  PAGE
------                                                                  ----
<S>         <C>                                                         <C>
   1        Interpretation                                                1

   2        Guarantee                                                     3

   3        Warranties                                                    3

   4        Undertakings                                                  5

   5        Nature of Guarantee                                           6

   6        Liability of Guarantor                                        6

   7        Primary Obligation and Indemnity                              8

   8        Settlement                                                    9

   9        Payments                                                      9

  10        Waiver                                                       10

  11        Counter-Security                                             10

  12        Subrogation                                                  10

  13        Assignment                                                   11

  14        Remedies, etc.                                               11

  15        Partial Invalidity                                           11

  16        No Waiver                                                    12

  17        Counterparts                                                 12

  18        Communications                                               12

  19        Governing Law and Jurisdiction                               13
</TABLE>
<PAGE>   3
THIS GUARANTEE is made on June 28, 2001

BY

CHU THOMAS YAN CHUEN, holder of Hong Kong Identity Card No. E184420(6), of Flat
B, 1st Floor, Tower II, Ruby Court, 55 South Bay Road, Hong Kong (the
"Guarantor")

IN FAVOUR OF DIGITAL WORLD FINANCE LIMITED, a company incorporated and
registered in Hong Kong having its registered office at Room 2001, 20th Floor,
Hong Kong Diamond Exchange Building, 8-10 Duddell Street, Central, Hong Kong
(the "Lender").

WHEREAS:

(A)  By a loan agreement dated June 28, 2001 (the "AGREEMENT") made between
Supply Chain Services Limited (the "BORROWER") and the Lender the Lender has
agreed to make available to the Borrower a loan facility in the principal amount
of HK$2,000,000.00.

(B)  It is a condition of the Agreement that the Guarantor execute this
Guarantee in favour of the Lender.

NOW THIS GUARANTEE WITNESSES as follows:

1.   INTERPRETATION

1.1  Subject as otherwise provided in this Guarantee, terms and expressions
defined in Section (1) of Schedule 1 to the Agreement shall have the same
meanings when used in this Guarantee and the provisions of Section(2) of
Schedule 1 to the Agreement shall apply to the interpretation of this Guarantee.

1.1  In this Guarantee unless the context otherwise requires:

     (a)  references to Clause(s) and Recital(s) are references to clause(s) and
          recital(s) of this Guarantee;

     (b)  the words "herein", "hereof", "hereunder" and words of similar import
          shall be construed as references to this Guarantee as whole and not to
          the particular provision in which the relevant reference appears;

     (c)  references to (or to any specific provision of) this Guarantee or any
          other document shall be construed as references to this Guarantee,
          that provision or that document as amended, modified or supplemented
          from time to time;

     (d)  references to any ordinance, enactment, rule, law, directive or
          regulation include such ordinance, enactment, rule, law, directive or
          regulation as modified, consolidated, extended or re-enacted and
          include subsidiary legislation made thereunder;

     (e)  references to writing shall include typewriting, printing,
          lithography, photography, telecopier and telex messages and any mode
          of reproducing words in legible and non-transitory form;

     (f)  references to "party" and "parties" shall be construed as references
          to a party or the parties to this Guarantee and its or their
          respective permitted successor(s), assign(s) and personal
          representative(s);
<PAGE>   4
     (g)  references to a "month" shall be construed as references to a period
          commencing on a day in calendar month and ending on the corresponding
          day in the next calendar month or, if there is none, ending on the
          last day of the next calendar month;

     (h)  references to time shall be construed as references to Hong Kong time
          unless otherwise stated; and

     (i)  words herein importing the singular shall include the plural and vice
          versa and words importing any gender shall include all genders and
          words importing "person" shall include any individual, company,
          corporation, firm, partnership, joint venture, association or trust
          (in each case, whether or not having a separate legal personality).

1.2  In the Guarantee clause headings and the index are inserted for reference
     only and shall not affect construction or interpretation of this Guarantee.

1.3  In construing this Guarantee:

     (a)  the rule known as the ejusdem generis rule shall not apply and
          accordingly general words introduced by the word "other" shall not be
          given a restrictive meaning by reason of the fact that they are
          preceded by words indicating a particular class of acts, matters or
          things and

     (b)  general words shall not be given a restrictive meaning by reason of
          the fact that they are followed by particular examples intended to be
          the general words.

2.   GUARANTEE

2.1  In consideration of the Lender agreeing, at the request of the Guarantor,
to make available the facility to the Borrower upon and subject to the terms and
conditions of the Agreement, the Guarantor irrevocably and unconditionally
guarantees to and in favour of the Lender the due and punctual performance and
observance of and compliance with all covenants, agreements, conditions and
provisions expressed or implied on the part of the Borrower to be performed,
observed or complied with under the Agreement (all of which are, in this
Guarantee, collectively called the "Guaranteed Obligations").

2.2  The Guarantor irrevocable and unconditionally undertakes to and in favour
of the Lender that if for any reason the Borrower does not pay any sum payable
by it under the Agreement when due (whether on the normal due date, on
acceleration or otherwise), the Guarantor will, unconditionally and irrevocably,
forthwith upon demand, pay the relevant amount and interest on any amount so
demanded until paid in full (as well after as before judgment) at the same rate
and calculated in the same manner as is provided for in Clauses 7 and 8 of the
Agreement.

3.   WARRANTIES

3.1  The Guarantor represents and warrants to and for the benefit of the Lender
     that:

     (a)  the Guarantor has the full legal capacity to enter into, exercise his
          rights and perform and comply with his obligations under this
          Guarantee;

     (b)  the entry into, exercise of the rights and/or performance of or
          compliance with the obligations under this Guarantee by the Guarantor
          do not and will not violate (as the case may be):

          (i)   any law, regulation, directive, judgment or order to which the
                Guarantor is subject; or

          (ii)  any agreement to which the Guarantor is a party or which is
                binding on him or his assets:

     (c)  all action, conditions, approvals, including, but without limitation,
          all governmental and other official consents, licences, approvals and
          authorization, and things required under the laws of Hong Kong to be
          taken, fulfilled and done in order:

          (i)   to enable the Guarantor lawfully to enter into, exercise his
                rights and perform and comply with the obligations under this
                Guarantee;
<PAGE>   5
          (ii)  to ensure that those obligations are legal, valid and
                enforceable in accordance with their terms; and

          (iii) to make this Guarantee admissible in evidence,

     have been fulfilled and performed properly and truthfully in strict
     compliance with any applicable laws;

     (d)  it is not necessary in order to ensure the legality, validity,
          enforceability, admissibility in evidence or priority of this
          Guarantee that it be filed, recorded or enrolled with any court or
          authority anywhere or that any stamp duty, registration or similar tax
          be paid on or in relation to it;

     (e)  this Guarantee constitutes (or, as and when it is executed, will
          constitute) legal, valid and binding obligations of the Guarantor
          enforceable in accordance with its terms and there are no approvals
          required in respect of this Guarantee which have not been and are not
          in full force and effect;

     (f)  except for High Court Action No. 1400 of 2001 no litigation,
          arbitration or administrative proceeding is current, pending or
          threatened :

          (i)   to restrain the entry into, exercise of the rights and/or
                performance or enforcement of or compliance with the obligations
                under this Guarantee by the Guarantor; or

          (ii)  which has or could have a material adverse effect on the
                Guarantor or on the financial condition or the ability of the
                Guarantor to make any payment when due or to perform any of his
                other obligations in accordance with this Guarantee; or

          (iii) which has or could have a material adverse effect on the
                legality, validity or enforceability of this Guarantee;

     (g)  without prejudice to Clause 3.1(b), the Guarantor is not in default or
          breach of any of his obligations under any agreement to which he is a
          party which default or breach has or could have a material adverse
          effect on his ability to make any payment when due or to perform any
          of his other obligations in accordance with this Guarantee.

4.   UNDERTAKINGS

     The Guarantor irrevocably and unconditionally undertakes to and with the
     Lender that for so long as he has any liability (contingent or actual)
     under this Guarantee:

     (a)  the Guarantor will obtain and promptly renew from time to time and
          maintain in full force and effect and comply with the conditions and
          restrictions (if any) imposed in, or in connection with all consents,
          permits and approvals (whether governmental or otherwise) in respect
          of this Guarantee and do, or cause to be done, all other acts and
          things which may from time to time be necessary to ensure that this
          Guarantee and his obligations hereunder remain in full force and
          effect and continue to be legal, valid and enforceable in accordance
          with its terms and admissible in evidence;

     (b)  the Guarantor will promptly advise the Lender upon becoming aware of :

          (i)   any breach of this Guarantee; or

          (ii)  any factor having a material adverse effect which may inhibit,
                impair or delay the Guarantor in the performance of his
                obligations under this Guarantee;

     (c)  the Guarantor will at all times comply with any law or directive and
          any conditions of any consent relating to this Guarantee;

     (d)  the Guarantor will comply with his obligations under this Guarantee;

     (e)  the Guarantor shall pay all his Indebtedness and shall perform all his
          other contractual obligations not specified herein duly and promptly
          in accordance with the particular agreements to which he is a party or
          by which his properties or assets are bound;

     (f)  the Guarantor will ensure that his obligations under this Guarantee at
          all times rank at least pari passu with all his unsecured obligations,
          except for

<PAGE>   6
          Indebtedness and obligations mandatorily preferred by law and not by
          contract; and

     (g)  the Guarantor will pay and discharge all taxes for which he is liable
          (whether in Hong Kong or elsewhere), including without limitation any
          taxes assessed against any of his assets, prior to the date after
          which penalties attach for failure to pay, except to the extent that
          such taxes are being contested in good faith, adequate reserves having
          been set aside for the payment thereof and will make timely filings of
          all tax returns and governmental reports required to be filed or
          submitted under any applicable laws or regulations.

5.   NATURE OF GUARANTEE

5.1  This Guarantee is and shall be a continuing guarantee, shall be held by the
Lender as a continuing security for the Guaranteed Obligations and shall remain
in full force and effect until the Guaranteed Obligations have been paid and
discharged in full, notwithstanding any liquidation, composition, insolvency,
administration, bankruptcy, death or other incapacity of the Guarantor or any
other person.

5.2  This Guarantee is in addition to, and not in substitution for, and shall
not merge with or otherwise affect or prejudice or be affected or prejudiced by
any other security, guarantee, indemnity, lien, power, right or remedy which the
Lender may now or at any time hereafter hold or take or be entitled to.

6.   LIABILITY OF GUARANTOR

6.1  Subject as otherwise provided in this Guarantee, the liability of the
Guarantor under this Guarantee shall be and shall not be impaired, affected,
reduced or discharged by reason of:

     (a)  any time, indulgence, waiver or consent at any time given to, or any
          compromise or composition entered into or made with any of the
          Covenantors or any other person or any other release (conditional or
          otherwise) of the Borrower or the Guarantor or any other person;

     (b)  any amendment, variation, supplement or novation, to or of the Loan
          Documents, or any other security guarantee, indemnity, lien, power,
          right or remedy (including, but not limited to, any increase in the
          principal amount of the Facility, the amount of interest payable or
          the applicable interest rate, the amount of any costs, fees or charges
          payable under the Loan Documents and any other variation of the
          liability of the Covenantors thereunder) (whether or not the change
          effected by such amendment, variation, supplement or novation is
          material);

     (c)  the making or the absence of any demand on the Borrower or the
          Guarantor or any person for payment in respect of the Guaranteed
          Obligations;

     (d)  the enforcement or absence of enforcement of, the release of, or the
          failure or neglect to recover monies by the realization of, the
          security constituted by this Guarantee or any other security,
          guarantee, indemnity, lien, power, right or remedy;

     (e)  any defect, irregularity or deficiency in any provision of the Loan
          Documents or any other security, guarantee, indemnity, lien, power,
          right or remedy, or the obligations of any party hereunder being or
          becoming terminated, invalid, illegal or unenforceable at any time
          and/or for any reason;

     (f)  any party thereto not being bound by the terms of the Loan Documents
          or any other security, guarantee, indemnity, lien, power, right or
          remedy, whether as a result of any failure to execute, or any
          deficiency in the execution of, the necessary powers or any irregular
          or improper exercise thereof;

     (g)  any right of the Guarantor to set-off amounts due to him form the
          Lender against the Guaranteed Obligations;

     (h)  the insolvency, bankruptcy, dissolution, winding-up, liquidation,
          amalgamation, reconstruction, reorganization, change in constitution,
          death or incapacity of any of the Covenantors or any other person; or
<PAGE>   7
          (i)  any other act, omission, event or thing whatsoever which but for
               this provision would or might afford an equitable defence to a
               surety or otherwise operate to discharge, impair or affect the
               obligations or liabilities of the guarantor hereunder.

6.2  The Lender may release, discharge, waive, vary or compromise or grant time
in respect the liabilities and obligations of the Guarantor under this Guarantee
without thereby prejudicing or affecting the obligations and liabilities of the
Guarantor under any of the other documents in respect of the Guaranteed
Obligations.

7.   PRIMARY OBLIGATION AND INDEMNITY

7.1  The Guarantor unconditionally and irrevocably agrees to pay all costs and
expenses including but not limited to legal fees (on a full indemnity basis)
arising out of or in connection with the recovery or attempted recovery by
Lender of monies due to it under the Guarantee.

7.2  As a separate and independent stipulation and without prejudice to any
other provision of this Guarantee, the Guarantor hereby unconditionally and
irrevocably covenants:

     (a)  that any sum expressed to be payable to the Lender under the Loan
          Documents but which is for any reason (whether or not now existing and
          whether or not now known or becoming known to any party to the Loan
          Documents) not recoverable from the Guarantor on the basis of a
          guarantee or otherwise shall nevertheless be recoverable from the
          Guarantor as if he were the sole principal debtor in respect thereof
          and any such sum shall be paid by him to the Lender on demand and the
          Guarantor shall indemnify the Lender in respect of any loss arising as
          a result of non-payment of the same;

     (b)  that, if any obligation or purported obligation of the Guarantor under
          this Guarantee should be or become wholly or in part invalid or
          unenforceable or terminated for any reason whatsoever, the Guarantor
          shall nevertheless be liable in respect of such obligation or
          purported obligation as if the same were wholly valid and enforceable
          and continuing irrespective of whether such invalidity or
          unenforceability or termination or any related fact or circumstance
          was known or ought to have been known to the Lender; and

     (c)  that the Guarantor will indemnify and keep the Lender fully
          indemnified against all damages, losses, costs and expenses suffered,
          sustained or incurred by the Lender as a result of any failure of the
          Guarantor to carry out any such obligation or purported obligation.

7.3  For the avoidance of doubt, the provisions, of Clause 6 shall also apply to
this clause 7.

8.   SETTLEMENT

     Any release, settlement, assignment, payment or discharge between the
Guarantor, the Borrower and the Lender shall be conditional upon no security,
disposition or payment to the Lender in respect of the Guaranteed Obligations by
the Guarantor or any other person being avoided or set aside or ordered to be
surrendered, paid away, refunded or reduced by virtue of any provision, law or
enactment relating to bankruptcy, insolvency, liquidation, winding-up,
composition or arrangement for the time being in force or for any other reason
whatsoever and the Lender shall be entitled to recover from the Guarantor the
value which the Lender placed upon such security or disposition or the amount of
such payment as if such release, settlement or discharge had not occurred.

9.   PAYMENTS

9.1  All amounts payable by the Guarantor under this Guarantee shall be paid to
the Lender in such manner and in such currency or currencies as the Lender may
require in the relevant demand.

9.2  All amounts payable by the Guarantor under this guarantee shall be made
without any withholding on account of any taxes and without set-off or
counterclaim or any restriction, condition or deduction whatsoever. If the
Guarantor is compelled by law to make any deduction or withholding, the
Guarantor will promptly pay to the Lender such additional amount as will result
in the net amount
<PAGE>   8
received by the Lender being equal to the full amount which would have been
receivable had there been no deduction or withholding.

9.3  Any amount received or recovered by the Lender from the Guarantor under
this Guarantee in a currency other than the currency (the "Account Currency") in
which payment has been demanded pursuant hereto (whether as a result of, or of
the enforcement of, a judgment or order of a court, tribunal or authority of any
jurisdiction) shall only constitute a discharge to the Guarantor to the extent
of the amount in the Account Currency which the Lender is able to purchase with
the amounts so received or recovered in that other currency on the date of that
receipt or recovery (or, if it is not practicable to make the purchase on that
date, on the first date on which it is practicable to do so) being equal to what
the Lender should have received under this Guarantee should the amount be paid
in the Account Currency. If that amount is less than the amount due to or
claimed by the Lender in the Account Currency the Guarantor shall indemnify the
Lender against any loss sustained by the Lender and such indemnification shall
give rise to an independent and separate claim and cause of action against the
Guarantor.

10.  WAIVER

     The Guarantor waives any right to require that, prior to any claim under or
enforcement of this Guarantee, (a) proceedings be taken first against the
Borrower or any other person or (b) any action be taken to realise or enforce
any or all other security, guarantee, indemnity, lien, power, right or remedy.

11.  COUNTER-SECURITY

11.1 The Guarantor warrants to the Lender that he has not taken and covenants
with the Lender that he will not take from the Borrower, without the prior
consent of the Lender, any form of security, either directly or indirectly and
whether merely personal or involving a charge on any property of the Borrower in
respect of his liabilities under this Guarantee.

11.2 Any such security now held or hereafter taken without the prior consent of
the Lender shall be held on trust for the Lender as security for the discharge
of the Guaranteed Obligations and the relevant documents shall be deposited with
the Lender.

12.  SUBROGATION

12.1 So long as the Guarantor has any liability (contingent or actual) under
     this Guarantee:

     (a)  any right of the Guarantor, by reason or in respect of the performance
          of his obligations under this Guarantee, to be indemnified by the
          borrower or to take the benefit of or enforce any security or other
          guarantee or indemnity held in respect of al or any part of the
          Guaranteed Obligations shall be exercised and enforced by the
          Guarantor only in such manner and on such terms as the Lender may
          require; and

     (b)  any amount received or recovered by the Guarantor as a result of any
          exercise of any such right shall be held in trust for the Lender and
          immediately paid to the Lender.

12.2 The Guarantor will refrain from exercising any rights against the Borrower
in competition with the Lender unless and until the Guaranteed Obligations shall
have been discharged in full except that the Guarantor any (and shall if so
required by the Lender) prove in a winding-up or bankruptcy, or participate in
any competition with any creditor, of the Borrower for claims against the
Borrower on condition that the Guarantor holds the benefit of such claims upon
trust to pay amounts recovered thereunder to the Lender until the Guaranteed
Obligations have been fully discharged.

13.  ASSIGNMENT

     This Guarantee shall be binding on the Guarantor and ensure to the benefit
to the Lender and its successors and assigns except that the Guarantor shall
not, and shall not be entitled to, assign or transfer any of his rights,
benefits or obligations hereunder without the prior consent of the Lender.

14.  REMEDIES, ETC.
<PAGE>   9
14.1 Time shall be of the essence of this Guarantee, but no failure or delay on
the part of the Lender to exercise or enforce any right, remedy, power or
privilege hereunder will operate as a waiver thereof, nor will any single or
partial or defective exercise of any right, remedy or privilege preclude any
other or further exercise or enforcement thereof or the exercise of any other
right, remedy or privilege. Subject as otherwise provided in this Guarantee, no
act or conduct or negotiation on the part or on behalf of the Lender shall in
any way preclude it from exercising any right, remedy, power or privilege
hereunder or constitute a suspension or any variation of any such right, remedy,
power or privilege. Any consent required to be given under any provision hereof
may be given subject to such conditions as the Lender may specify. Any waiver or
consent shall be effective only in the instance and for the purpose for which it
is given. Subject as otherwise provided in this Guarantee, the rights, remedies,
powers and privileges herein provided are cumulative, may be exercised as often
as the Lender considers appropriate and are not exclusive of any rights,
remedies, powers or privileges provided by law.

14.2 No provision hereof may be amended waived discharged or terminated orally,
but only by an instrument in writing signed by or on behalf of the party against
whom enforcement of the amendment waiver discharge or termination is sought. No
breach of or default under any of the provisions of this Guarantee may be waived
or discharged except by an instrument in writing signed by or on behalf of the
party against whom enforcement of such waiver or discharge is sought.

15.  PARTIAL INVALIDITY

     If any term, condition or provision of this Guarantee is held to be a
violation of any applicable law, statute or regulation it shall be deemed to be
deleted from this Guarantee and shall be of no force and effect and this
Guarantee shall remain in full force and effect as if that term, condition or
provision had not originally been contained in this Guarantee. Notwithstanding
the foregoing, in the event of any such deletion the parties shall negotiate in
good faith in order to agree the terms of a mutually acceptable and satisfactory
alternative provision in place of the provisions so deleted.

16.  NO WAIVER

     Time shall be of the essence of this guarantee but no failure or delay on
the part of either party to require performance by the other party of any
provision of this Guarantee will operate as a waiver thereof. Subject as
otherwise provided in this Guarantee, any waiver by either party of any breach
of any provision in this Guarantee shall not be construed as a waiver of any
continuing or succeeding breach of such provision a waiver of the provision
itself or a waiver of any right under this Guarantee. Any waiver or consent
shall be effective only in the instance and for the purpose for which it is
given.

17.  COUNTERPARTS

     This Guarantee may be executed in any number of counterparts or duplicates
each of which shall be an original, but the counterparts or duplicates shall
together constitute one and the same instrument.

18.  COMMUNICATIONS

18.1 Any notice report request demand consent approval or other communication
(collectively the "Communication") required to be served or given under this
Guarantee shall be in English and shall be deemed duly served or given if
delivered personally or sent by facsimile or by prepaid registered post (airmail
in the case of an address for service outside Hong Kong) to the addressee at the
address or facsimile number set out on the first page of this Guarantee or at
such other address or facsimile number the party to be served may have notified
in writing for the purpose of this Clause.

18.2 Any Communication so given shall be deemed to have been served 48 hours
after posting to an address in Hong Kong or, where served by airmail, seven(7)
days after posting to an address outside Hong Kong or, where served by
facsimile, on the next day after the day on which it was dispatched (reckoned at
the place of dispatch). In proving the service of any Communication, it will be
sufficient to prove that the envelope containing the Communication was duly
stamped addressed and placed in the post or delivered or left at the current
address if delivered personally and,
<PAGE>   10
in the case of a facsimile, that the Communication was duly dispatched to the
facsimile number of the addressee given above or subsequently notified the
purpose of this Guarantee.

19.  GOVERNING LAW AND JURISDICTION

19.1 This Guarantee shall be governed by and construed in all respects in
accordance with the laws of Hong Kong.

19.2 In relation to any legal action or proceedings to enforce this Guarantee or
arising out of or in connection with this Guarantee (the "proceedings") each of
the parties irrevocably submits to the non-exclusive jurisdiction of the Hong
Kong courts and waives any objection to proceedings in those courts on the
ground of venue or on the ground that the proceedings have been brought in an
inconvenient forum.

19.3 These submissions shall not affect the right of any of either party to take
proceedings in any other jurisdiction nor shall the taking of proceedings in any
jurisdiction preclude either party from taking proceedings in any other
jurisdiction.

     IN WITNESS WHEREOF the Guarantor has duly executed this Guarantee on the
date first above written.
<PAGE>   11
SIGNED SEALED AND      )
DELIVERED by           )
CHU THOMAS YAN CHUEN   )  /s/ Chu Thomas Yan Chuen
in the presence of :   )  /s/ Jerry W.L. Yip

Witness    :     Jerry W.L. Yip
Address    :     31 New Henry House, 10 Ice House Street, Central, Hong Kong
Occupation :     Solicitor, Hong Kong SAR<PAGE>   1
                                                                    EXHIBIT 10.3

THIS LOAN AGREEMENT is made on the 30th day of June 2001.

BETWEEN

1)   SUPPLY CHAIN SERVICES LIMITED, whose registered office is situated at 31
     New Henry House, 10 Ice House Street, Central, Hong Kong (the "Borrower");
     and

2)   GI-TECH DEVELOPMENTS LIMITED, whose registered office is situated at 31 New
     Henry House, 10 Ice House Street, Central, Hong Kong (the "Lender"); and

WHEREAS:-

1)   The Lender is a shareholder of Supply Chain Services Inc. which is a
     company incorporated in the United States of America and holding
     beneficially 100% issued and paid-up share capital of Supply Chain Services
     Limited, a company which is incorporated in Hong Kong and holding
     beneficially the entire issued and paid-up share capital of the Borrower.

2)   The Borrower is presently indebted to the Lender in the sum of
     HK$1,962,424.52 (the "Indebtedness") over the period from April 01, 2001 to
     June 30, 2001.

NOW THIS LOAN AGREEMENT WITNESSETH AND IT IS HEREBY AGREED as follows:-

1.   INTERPRETATION

1.1  Words importing the singular number only shall include the plural and vice
     vera and words importing any gender shall include every gender and words
     importing persons shall include firms and corporations.

1.2  References to Clauses shall (save where otherwise expressly stated) be
     construed as references to the Clauses of this Subordination Agreement.
     Clause headings are inserted for convenience of reference only and shall be
     ignored in the interpretation of this Loan Agreement.
<PAGE>   2
2.   TERMS OF THE LOAN

2.1  The Borrower and the Lender acknowledge to and agree with each other that
     for so long as the Indebtedness remains outstanding, this Loan Agreement
     and all the terms, covenants, conditions and stipulations herein contained
     will continue, and the Indebtedness is and shall be subject to the
     following terms and conditions:-

          a)   the Indebtedness shall be subject to payment of interest at 2%
               above Hong Kong prime rate;

          b)   the Indebtedness shall be repayable or repaid in whole on or
               before August 30, 2001, except in the event of any proceedings
               analogous to the winding-up, liquidation or dissolution of the
               Borrower; and

          c)   the Indebtedness is and shall remain unsecured by any mortgage,
               charge, debenture or other security of any kind over the whole or
               any part of the assets of the Borrower and is not and shall not
               be capable of becoming subject to any right of set-off or
               counterclaim.

2.2  Neither the Lender nor the Borrower shall (without prior written consent of
     the other party) assign or purport to assign the Indebtedness to any third
     party.

3.   ASSIGNABILITY

3.1  This Loan Agreement is not capable of assignment in whole or in part except
     with prior consents in writing of the Borrower and the Lender.

4.   NOTICES

4.1  All notices and other communications required to be made or given under the
     terms of this Loan Agreement or in connection herewith shall be given by or
     made to the parties hereto in writing and delivered by hand or by
     registered mail or by facsimile, and shall be addressed to the appropriate
     party at the address set out in this Loan Agreement or to such other
     address as such party hereto may from time to time designate to the other
     in writing.

4.2  Any notice, request, demand or other communications given or made shall be
     deemed to have been received in the case of communications in writing and
     delivered by hand on the date of delivery against written receipt, in the
     case written communications sent by registered mail on the date which is 2
     business days in the case of local mail or 8 business days in the case of
     overseas mail after the mailing thereof, and in case of a facsimile the
     same day after the date of dispatch thereof provided that a "successful
     transmission" receipt is obtained.

5.   MISCELLANEOUS

5.1  All costs and expenses of and incidental to the preparation of this Loan
     Agreement shall be borne by the Borrower.
<PAGE>   3
5.2  Any provision of this Loan Agreement prohibited by or unlawful or
     unenforceable under any applicable law actually applied by any court of
     competent jurisdiction shall, to the extent required by such law, be
     severed from this Loan Agreement and rendered ineffective so far as is
     possible without modifying the remaining provisions of this be waived, they
     are hereby waived by the parties hereto to the full extent permitted by
     such law to the intent that this Loan Agreement shall be valid and binding
     agreement enforceable in accordance with its terms.

5.3  No modification, variation or amendment of this Loan Agreement shall be
     effective unless such modifications, variations or amendment is in writing
     and has been signed by or on behalf of both the parties hereto.

5.4  This Loan Agreement shall be governed by and construed and interpreted in
     all respects in accordance with the laws of Hong Kong, and the parties
     hereto hereby irrevocably submit to the non-exclusive jurisdiction of the
     Hong Kong courts.

IN WITNESS whereof the parties hereto have duly executed this Loan Agreement on
the day and year first herein before written.

THE BORROWER

SEALED with the COMMON SEAL of      )
SUPPLY CHAIN SERVICES LIMITED       )
And SIGNED by                       ) /s/ Chu Pauline Wai Man
                                    )
in presence of:                     ) /s/ Lydia Tsang
                                    )
                                    )

THE LENDER

SEALED with the COMMON SEAL of      )
GI-TECH DEVELOPMENTS LIMITED        )
And SIGNED by                       ) /s/ Chu Thomas Yan Chuen
                                    )
in presence of:                     ) /s/ Lydia Tsang
                                    )
                                    )

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