<PAGE>



                                                                    Exhibit 4.25




THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS.
THESE SECURITIES MAY NOT BE SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF IN THE
ABSENCE OF REGISTRATION, OR THE AVAILABILITY OF EXEMPTION FROM REGISTRATION,
UNDER THE SECURITIES ACT OF 1933, AS AMENDED, BASED ON AN OPINION LETTER OF
COUNSEL SATISFACTORY TO THE COMPANY OR A NO-ACTION LETTER FROM THE SECURITIES
AND EXCHANGE COMMISSION.


                                                     Non-Plan Option No. 2001-13


                         OPTION TO PURCHASE COMMON STOCK
                                       OF
                              STONEPATH GROUP, INC.


         This certifies that, for value received, BROWN SIMPSON PARTNERS I, LTD.
("Holder"), is entitled, subject to the terms set forth below, to purchase from
STONEPATH GROUP, INC. (the "Company"), a Delaware corporation, that number of
shares of the Common Stock of the Company (the "Shares") as are set forth in
Section 2 below, commencing on the Vesting Date identified on Schedule A hereto
(the "Vesting Date"), with the Notice of Exercise attached hereto duly executed,
and simultaneous payment therefore in lawful money of the United States or for
other consideration permitted herein, at the Exercise Price as set forth in
Section 2 below. The number, character and Exercise Price of the Shares are
subject to adjustment as provided below.

         1. Term of Option. Subject to compliance with the vesting provisions
identified at Section 2.3 hereafter, this Option shall be exercisable, in whole
or in part, during the term (the "Term") commencing on the Vesting Date and
ending on the Option Termination Date identified on Schedule A hereto (the
"Option Termination Date") and shall be void thereafter.

         2. Exercise Price, Number of Shares and Vesting Provisions.

                  2.1 Exercise Price. The Exercise Price at which this Option
may be exercised and pursuant to which Shares of the Company's Common Stock may
be purchased shall, on a per Share basis, be identified on Schedule A hereto, as
adjusted pursuant to Section 11 hereof.

                  2.2 Number of Shares. The number of shares of the Company's
Common Stock, $.001 par value per share ("Common Stock") which may be purchased
pursuant to this Option shall be as identified on Schedule A hereto, as adjusted
pursuant to Section 11 hereof.


<PAGE>


                  2.3 Vesting. The Options granted hereunder shall vest in the
manner identified on Schedule A attached hereto.

         3. Exercise of Option.

                  (a) The Option exercise price of each share purchased pursuant
to an Option shall be paid in full at the time of each exercise (the "Payment
Date") of the Option (i) in cash; (ii) by delivering to the Company a notice of
exercise with an irrevocable direction to a broker-dealer registered under the
Securities Act of 1933, as amended (the "Securities Act") to sell a sufficient
portion of the Shares and deliver the sale proceeds directly to the Company to
pay the exercise price; (iii) in the discretion of the "Option Administrator"
(defined as either the Company's Board of Directors or its Compensation
Committee, if comprised of a majority of non-employee directors), through the
delivery to the Company of previously-owned shares of Common Stock having an
aggregate "Fair Market Value" (as defined) equal to the Option exercise price of
the Shares being purchased pursuant to the exercise of the Option; provided,
however, that Shares of Common Stock delivered in payment of the Option price
must have been held by the Holder for at least six (6) months in order to be
utilized to pay the Option price; (iv) in a cashless method by an election of
the Holder to have the Company withhold Shares otherwise issuable to the Holder
having a Fair Market Value equal to the Option exercise price of the Shares
being purchased pursuant to the exercise of the Option; or (v) in the discretion
of the Option Administrator, through any combination of the payment procedures
set forth in subsections (i)-(iv) above.

                           (i)      the "Fair Market  Value" of the Shares shall
be (i) if the Company's Common Stock is listed on any established stock exchange
or a national market system, including without limitation the National Market or
SmallCap Market of The Nasdaq Stock Market, its Fair Market Value shall be the
closing sales price for such stock (or the closing bid, if no sales were
reported) as quoted on such exchange or system for the last market trading day
prior to the time of determination, as reported in The Wall Street Journal or
such other source as the Option Administrator deems reliable; (ii) if the Common
Stock is regularly traded on the Nasdaq OTC Bulletin Board, or a comparable
automated quotation system, its Fair Market Value shall be the mean between the
high bid and low asked prices for the Common Stock on the last market trading
day prior to the day of determination; or (iii) in the absence of an established
market for the Common Stock, the Fair Market Value thereof shall be determined
in good faith by the Option Administrator.

                  (b) The purchase rights represented by this Option are
exercisable by the Holder in whole or in part, at any time, or from time to
time, by the surrender of this Option and the Notice of Exercise annexed hereto
duly completed and executed on behalf of the Holder, at the office of the
Company (or such other office or agency of the Company as it may designate by
notice in writing to the Holder at the address of the Holder appearing on the
books of the Company).

                  (c) This Option shall be deemed to have been exercised
immediately prior to the close of business on the date of its surrender for
exercise as provided above, and the person entitled to receive the shares of


<PAGE>


Common Stock issuable upon such exercise shall be treated for all purposes as
the holder of record of such Shares as of the close of business on such date. As
promptly as practicable on or after such date and in any event within ten (10)
days thereafter, the Company at its expense shall issue and deliver to the
person or persons entitled to receive the same a certificate or certificates for
the number of Shares issuable upon such exercise. In the event that this Option
is exercised in part, the Company at its expense will execute and deliver a new
Option of like tenor exercisable for the number of Shares for which this Option
may then be exercised.

         4. No Fractional Shares or Scrip. No fractional shares or scrip
representing fractional shares shall be issued upon the exercise of this Option.
In lieu of any fractional share to which the Holder would otherwise be entitled,
the Company shall make a cash payment equal to the Exercise Price multiplied by
such fraction.

         5. Replacement of Option. On receipt of evidence reasonably
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Option and, in the case of loss, theft or destruction, on delivery of an
indemnity agreement reasonably satisfactory in form and substance to the Company
or, in the case of mutilation, on surrender and cancellation of this Option, the
Company at its expense shall execute and deliver, in lieu of this Option, a new
Option of like tenor and amount.

         6. Rights of Stockholder. Except as otherwise contemplated herein, the
Holder shall not be entitled to vote or receive dividends or be deemed the
holder of Common Stock or any other securities of the Company that may at any
time be issuable on the exercise hereof for any purpose, nor shall anything
contained herein be construed to confer upon the Holder, as such, any of the
rights of a stockholder of the Company or any right to vote for the election of
directors or upon any matter submitted to stockholders at any meeting thereof,
or to give or withhold consent to any corporate action (whether upon any
recapitalization, issuance of stock, reclassification of stock, change of par
value, or change of stock to no par value, consolidation, merger, conveyance or
otherwise) or to receive notice of meetings, or to receive dividends or
subscription rights or otherwise until the Option shall have been exercised as
provided herein.

         7. Transfer of Option.

                  7.1 Non-Transferability. No Option shall be assignable or
transferable other than by the laws of descent and distribution. During the
lifetime of the Holder, an Option shall be exercisable only by the Holder or, in
the event of the Holder's incapacity, by the Holder's legal guardian or legal
representative.

                  7.2 Exchange of Option Upon a Transfer. On surrender of this
Option for exchange, properly endorsed, the Company at its expense shall issue
to or on the order of the Holder a new Option or Options of like tenor, in the
name of the Holder or as the Holder (on payment by the Holder of any applicable
transfer taxes) may direct, of the number of shares issuable upon exercise
hereof.


<PAGE>


                  7.3 Compliance with Securities Laws; Restrictions on
Transfers; Registration Rights.

                           (a) The Holder of this Option, by acceptance hereof,
acknowledges that this Option and the Shares to be issued upon exercise hereof
are being acquired solely for the Holder's own account and not as a nominee for
any other party, and for investment (unless such Shares are subject to resale
pursuant to an effective prospectus), and that the Holder will not offer, sell
or otherwise dispose of this Option or any Shares to be issued upon exercise
hereof except under circumstances that will not result in a violation of
applicable federal and state securities laws. Upon exercise of this Option, the
Holder shall, if requested by the Company, confirm in writing, in a form
satisfactory to the Company, that the shares of Common Stock so purchased are
being acquired solely for the Holder's own account and not as a nominee for any
other party, for investment (unless such shares are subject to resale pursuant
to an effective prospectus), and not with a view toward distribution or resale.

                           (b) Neither this Option nor any share of Common Stock
issued upon exercise of this Option may be offered for sale or sold, or
otherwise transferred or sold in any transaction which would constitute a sale
thereof within the meaning of the Securities Act, unless (i) such security has
been registered for sale under the Securities Act and registered or qualified
under applicable state securities laws relating to the offer an sale of
securities, or (ii) exemptions from the registration requirements of the
Securities Act and the registration or qualification requirements of all such
state securities laws are available and the Company shall have received an
opinion of counsel satisfactory to the Company that the proposed sale or other
disposition of such securities may be effected without registration under the
Securities Act and would not result in any violation of any applicable state
securities laws relating to the registration or qualification of securities for
sale, such counsel and such opinion to be satisfactory to the Company.

                           (c) All Shares issued upon exercise hereof shall be
stamped or imprinted with a legend in substantially the following form (in
addition to any legend required by state securities laws).

"THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR ANY APPLICABLE STATE
SECURITIES LAWS. THESE SECURITIES MAY NOT BE SOLD, TRANSFERRED OR OTHERWISE
DISPOSED OF IN THE ABSENCE OF REGISTRATION, OR THE AVAILABILITY OF EXEMPTION
FROM REGISTRATION, UNDER THE SECURITIES ACT OF 1933, AS AMENDED, BASED ON AN
OPINION LETTER OF COUNSEL SATISFACTORY TO THE COMPANY OR A NO-ACTION LETTER FROM
THE SECURITIES AND EXCHANGE COMMISSION."

                           (d) After the Vesting Date, and in all cases before
the Termination Date, the Company will use its best efforts to file with the
Securities and Exchange Commission

<PAGE>



and cause to become effective a registration statement on Form S-8 (or other
form equivalent to register the public reoffer of the Option Shares) covering
the Option Shares issuable upon exercise of this Option.

         8. Reservation and Issuance of Stock; Payment of Taxes.

                  (a) The Company covenants that during the term that this
Option is exercisable, the Company will reserve from its authorized and unissued
Common Stock a sufficient number of shares to provide for the issuance of the
Shares upon the exercise of this Option, and from time to time will take all
steps necessary to amend its Certificate of Incorporation to provide sufficient
reserves of Shares of Common Stock issuable upon the exercise of the Option.

                  (b) The Company further covenants that all Shares of Common
Stock issuable upon the due exercise of this Option will be free and clear from
all taxes or liens, charges and security interests created by the Company with
respect to the issuance thereof, however, the Company shall not be obligated or
liable for the payment of any taxes, liens or charges of Holder, or any other
party contemplated by Section 7, incurred in connection with the issuance of
this Option or the Common Stock upon the due exercise of this Option. The
Company agrees that its issuance of this Option shall constitute full authority
to its officers who are charged with the duty of executing stock certificates to
execute and issue the necessary certificates for the Shares of Common Stock upon
the exercise of this Option. The Common Stock issuable upon the due exercise of
this Option, will, upon issuance in accordance with the terms hereof, be duly
authorized, validly issued, fully paid and non-assessable.

                  (c) Whenever Options are to be issued or exercised under this
Agreement, under circumstances in which the Option Administrator believes that
any federal, state or local tax withholding may be imposed, the Company shall
have the right to require the Holder to promptly remit to the Company an amount
sufficient to satisfy the minimum federal, state and local tax withholding
requirements prior to the delivery of any Options or certificate for Shares or
any proceeds. If a Holder makes a disposition of Shares acquired upon the
exercise of an Incentive Stock Option within either two years after the Option
was granted or one year after its exercise by the Holder, the Holder shall
promptly notify the Company and the Company shall have the right to require the
Holder to pay to the Company an amount sufficient to satisfy federal, state and
local tax withholding requirements.

                  (d) A Holder who is obligated to pay the Company an amount
required to be withheld under applicable tax withholding requirements may pay
such amount (i) in cash; (ii) in the discretion of the Option Administrator,
through the delivery to the Company of previously-owned Shares of Common Stock
having an aggregate Fair Market Value on the date payment is requested by the
Option Administrator equal to the tax obligation provided that the previously
owned shares delivered in satisfaction of the withholding obligations must have
been held by the Holder for at least six (6) months; (iii) in the discretion of
the Option Administrator, through an election to have the Company withhold
shares of Stock otherwise issuable to the Holder having a Fair Market Value on
such date equal to the amount of tax required to be withheld, or (iv) in the
discretion of the Option Administrator, through a combination of the procedures
set forth in subsections (i), (ii) and (iii) of this Section 8(d).


<PAGE>


                  (e) An election by a Holder to have shares of Stock withheld
to satisfy federal, state and local tax withholding requirements pursuant to
Section 8(d) must be in writing and delivered to the Company prior to the date
when such payment is due.

         9. Notices.

                  (a) All notices, advices and communications under this Option
shall be deemed to have been given, (i) in the case of personal delivery, on the
date of such delivery and (ii) in the case of mailing, on the third business day
following the date of such mailing, addressed as follows:

                          If to the Company:

                          Stonepath Group, Inc.
                          2 Penn Center, Suite 605
                          Philadelphia, PA  19102
                          Attention:  Stephen M. Cohen, Esquire, General Counsel

                          and to the Holder:

                          at the address of the Holder appearing on the books
                          of the Company or the Company's transfer agent,
                          if any.

         Either of the Company or the Holder may from time to time change the
address to which notices to it are to be mailed hereunder by notice in
accordance with the provisions of this Section 9.

         10. Amendments.

                  (a) Any term of this Option may be amended with the written
consent of the Company and the Holder. Any amendment effected in accordance with
this Section 10 shall be binding upon the Holder, each future Holder and the
Company.

                  (b) No waivers of, or exceptions to, any term, condition or
provision of this Option, 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.

         11. Adjustments. The number of Shares of Common Stock purchasable
hereunder and the Exercise Price is subject to adjustment from time to time upon
the occurrence of certain events, as follows:

                  (a) If, through or as a result of any merger, consolidation,
sale of all or substantially all of the assets of the Company, reorganization,
recapitalization, reclassification, stock dividend, stock split, reverse stock
split or other similar transaction, the outstanding shares of Stock are

<PAGE>



increased or decreased or are exchanged for a different number or kind of shares
or other securities of the Company, or additional shares or new or different
shares or other securities of the Company or other non-cash assets are
distributed with respect to such shares of Stock or other securities, the Option
Administrator shall make an appropriate or proportionate adjustment in (i) the
number of Stock Options subject to this Option Agreement, and (ii) the exercise
price for each Share subject to any then outstanding Stock Options under this
Agreement, without changing the aggregate exercise price (i.e., the exercise
price multiplied by the number of shares) as to which such Stock Options remain
exercisable. The adjustment by the Administrator shall be final, binding and
conclusive.

                  (b) In the event that, by reason of a corporate merger,
consolidation, acquisition of property or stock, separation, reorganization or
liquidation, the Board of Directors shall authorize the issuance or assumption
of a stock Option or stock Options in a transaction to which Section 424(a) of
the Code applies, then, notwithstanding any other provision of the Plan, the
Administrator may grant an Option or Options upon such terms and conditions as
it may deem appropriate for the purpose of assumption of the old Option, or
substitution of a new Option for the old Option, in conformity with the
provisions of Code Section 424(a) and the rules and regulations thereunder, as
they may be amended from time to time.

                  (c) No adjustment or substitution provided for in this Section
11 shall require the Company to issue or to sell a fractional share under any
Option Agreement or share award agreement and the total adjustment or
substitution with respect to each stock Option and share award agreement shall
be limited accordingly.

                  (d) In the case of (i) the dissolution or liquidation of the
Company, (ii) a merger, reorganization or consolidation in which the Company is
acquired by another person or entity (other than a holding company formed by the
Company), (iii) the sale of all or substantially all of the assets of the
Company to an unrelated person or entity, or (iv) the sale of all of the stock
of the Company to a unrelated person or entity (in each case, a "Fundamental
Transaction"), this Option may be terminated by the Option Administrator, unless
provision is made in connection with the Fundamental Transaction for the
assumption of this Option, or the substitution of such New Options of the
successor entity, with appropriate adjustment as to the number and kind of
shares and, if appropriate, the per share exercise price as provided in
Subsections (a) and (b) of this Section 11. In the event of such termination and
in the event the Option Administrator does not provide for the Cash Payment
described in Subsection (e) of this Section, the Holder shall be notified of
such proposed termination and permitted to exercise for a period of at least
thirty (30) days prior to the date of such termination all Options held by such
Holder which are then exercisable.

                  (e) In the event that the Company shall be merged or
consolidated with another corporation or entity, other than a corporation or
entity which is an "affiliate" of the Company under the terms of which holders
of Stock of the Company will receive upon consummation thereof a cash payment
for each share of Stock of the Company surrendered pursuant to such Business
Combination (the "Cash Purchase Price"), the Option Administrator may provide
that this Option shall terminate upon consummation of such transaction and the


<PAGE>


Holder shall receive, in exchange therefore, a cash payment equal to the amount
(if any) by which (i) the Cash Purchase Price multiplied by the number of shares
of Stock of the Company subject to this Option held by such Holder exceeds (ii)
the aggregate exercise price of such Options.

                  (f) Whenever the Exercise Price or number of shares
purchasable hereunder shall be adjusted pursuant to Section 11 hereof, the
Company shall issue a certificate signed by its Chief Financial Officer setting
forth, in reasonable detail, the event requiring the adjustment, the amount of
the adjustment, the method by which such adjustment was calculated, and the
Exercise Price and number of shares purchasable hereunder after giving effect to
such adjustment, and shall cause a copy of such certificate to be mailed (by
first class mail, postage prepaid) to the Holder of this Option.

         12. Severability. Whenever possible, each provision of this Option
shall be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Option is held to be invalid,
illegal or unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability shall not affect
the validity, legality or enforceability of any other provision of this Option
in such jurisdiction or affect the validity, legality or enforceability of any
provision in any other jurisdiction, but this Option shall be reformed,
construed and enforced in such jurisdiction as if such invalid, illegal or
unenforceable provision had never been contained herein.

         13. Governing Law. The corporate law of the State of Delaware shall
govern all issues and questions concerning the relative rights of the Company
and its stockholders. All other questions concerning the construction, validity,
interpretation and enforceability of this Option and the exhibits and schedules
hereto shall be governed by, and construed in accordance with, the laws of the
State of Delaware, without giving effect to any choice of law or conflict of law
rules or provisions (whether of the State of Delaware or any other jurisdiction)
that would cause the application of the laws of any jurisdiction other than the
State of Delaware.

         14. Jurisdiction. The Holder and the Company agree to submit to
personal jurisdiction and to waive any objection as to venue in the federal or
state courts in the City in which the headquarters of the Company is located.
Service of process on the Company or the Holder in any action arising out of or
relating to this Option shall be effective if mailed to such party at the
address listed in Section 9 hereof.

         15. Corporate Power; Authorization; Enforceable Obligations. The
execution, delivery and performance by the Company of this Agreement: (i) are
within the Company's corporate power; (ii) have been duly authorized by all
necessary or proper corporate action; (iii) are not in contravention of the
Company's certificate of incorporation or by-laws; (iv) will not violate in any
material respect, any law or regulation, including any and all Federal and state
securities laws, or any order or decree of any court or governmental
instrumentality; and (v) will not, in any material respect, conflict with or
result in the breach or termination of, or constitute a default under any
agreement or other material instrument to which the Company is a party or by
which the Company is bound.


<PAGE>


         16. Successors and Assigns. This Option shall inure to the benefit of
and be binding on the respective successors, assigns and legal representatives
of the Holder and the Company.

         17. Entire Agreement; Supercedes Any Prior Arrangements. This Option to
purchase Common Stock is intended to codify in its entirety the Company's
obligation to grant options to the Holder as set forth in a Letter Agreement
between Holder and the Company dated June 30, 2001 (the "Letter Agreement"), and
shall supercede in its entirety the terms of such outstanding arrangements,
letters, agreements or discussions regarding the granting and terms of Options
between the Company and the Holder.

         18. Counterpart Execution. This Agreement may be executed in multiple
counterparts, and delivered by telecopy, each of which shall be deemed an
original but all of which together shall constitute one and the same
instruments.

         IN WITNESS WHEREOF, the Company has caused this Option to be executed
by its officers thereunto duly authorized.

Dated:  As of June 30, 2001




                                            STONEPATH GROUP, INC.


                                            By: /s/ Andrew Panzo
                                                --------------------------------
                                                Andrew Panzo, President







<PAGE>


                               NOTICE OF EXERCISE


TO:      [_____________________________]

         (1) The undersigned hereby elects to purchase _______ shares of Common
Stock of STONEPATH GROUP, INC. pursuant to the terms of the attached Option, and
tenders herewith payment of the purchase price for such shares in full.

         (2) In exercising this Option, the undersigned hereby confirms and
acknowledges that the shares of Common Stock to be issued upon conversion
thereof are being acquired solely for the account of the undersigned and not as
a nominee for any other party, and for investment (unless such shares are
subject to resale pursuant to an effective prospectus), and that the undersigned
will not offer, sell or otherwise dispose of any such shares of Common Stock
except under circumstances that will not result in a violation of the Securities
Act of 1933, as amended, or any state securities laws.

         (3) Please issue a certificate or certificates representing said shares
of Common Stock in the name of the undersigned or in such other name as is
specified below:




                                             ___________________________________
                                             (Name)


                                             ___________________________________
                                             (Name)


___________________________________          ___________________________________
(Date)                                       (Signature)



<PAGE>


                                   Schedule A



1.       Holder:  Brown Simpson Partners I, Ltd.

2.       Grant Date:       June 30, 2001

3.       Termination Date: December 31, 2002

4.       Number of Shares of Common Stock covered by the Option:       100,000

5.       Exercise Price :  $.82

6.       Vesting Date:     Upon the completion of the Company's first
         "Acquisition  Transaction" (as that term is defined in the Letter
         Agreement) after the Grant Date.


                                          STONEPATH GROUP, INC.



                                          By: /s/ Andrew Panzo
                                              ----------------------------------
                                              Authorized Executive Officer