<PAGE>
                             SUBSCRIPTION AGREEMENT

         This Subscription Agreement (the "Agreement") is made and entered into
as of May 28, 2003 by and between Valesc Holdings Inc., a Delaware corporation
(the "Company"), and Edward Kraus, an individual residing at 2605 Woods Lane,
Garland, TX 75044 (the "Subscriber").

         WHEREAS, the Company desires to issue to the Subscriber, and the
Subscriber desires to purchase from the Company, the Company's common stock on
the terms and conditions set forth in this Agreement;

         WHEREAS, the Company and the Subscriber are concurrently executing a
Loan Cancellation Agreement, dated the date hereof (the "Loan Cancellation
Agreement"), pursuant to which the Subscriber will cancel certain amounts owed
by the Company to the Subscriber;

         NOW, THEREFORE, the parties hereby agree as follows:

         1. Agreement to Purchase and Sell the Common Stock . The Company agrees
to issue to the Subscriber, and the Subscriber agrees to purchase from the
Company, at the Closing (as defined below), a total of 53,836 shares of its
common stock, $.0001 par value per share (the "Shares"), for $37,684.93 (the
"Purchase Price"), payable by cancellation of an equivalent amount of the
outstanding loan by the Subscriber to the Company in accordance with the Loan
Cancellation Agreement between the parties executed concurrently herewith.

         2. Closing. The purchase and sale of the Shares will take place at the
offices of Hecht & Associates, P.C., 60 East 42nd Street, Suite 5101, New York,
New York 10165-5101, at 10:00 a.m. E.S.T., on the date first set forth above, or
at such other time and place as the Company and the Subscriber mutually agree
(which time and place are referred to herein as the "Closing"). At the Closing,
the Company will deliver stock certificates to the Subscriber representing the
Shares executed by the Company or its Transfer Agent, against delivery to the
Company by the Subscriber of the Purchase Price in accordance with the Loan
Cancellation Agreement.

         3. Representations, Warranties and Certain Covenants of Subscriber.
The Subscriber hereby represents and warrants to the Company that:

   (a)   Disclosure of Risks. Subscriber is aware that the Company's financial
         condition is not stable: (i) the Company has received a "going concern"
         opinion from its independent auditor with respect to its last fiscal
         year and the Company may receive a subsequent "going concern" opinion
         to be issued in the Company's next audited financial statements; (ii)
         there is no assurance that the Company will be able to successfully
         commercialize any services or products thereby resulting in profits;
         and (iii) an investment in the Company involves a high degree of risk
         and should not be made unless the Subscriber is prepared to, and can
         afford to, lose the entire investment.

   (b)   Investment Experience and Access to Information.  By virtue of, among
         other things, his position as President of the Company's Medex
         subsidiary, Subscriber (i) has sufficient knowledge, sophistication and
         experience in business and finance to capably evaluate



<PAGE>

         information concerning an investment in the Company, (ii) has had an
         opportunity to ask detailed questions and receive satisfactory answers
         from representatives of the Company, including this son Jeremy Kraus,
         the Chairman of the Board and Chief Executive Officer, (iii) has had
         adequate opportunity to request and review any and all documents and
         other information, including the Company's publicly available filings
         with the Securities and Exchange Commission, relevant to Subscriber's
         consideration of investment in the Company, (iv) has otherwise obtained
         sufficient information from the Company to evaluate the merits and
         risks of an investment in the Company; (v) has independently considered
         and discussed such prospective investment with the Subscriber's
         business, legal, tax and financial advisers as to the suitability of
         such investment with respect to the Subscriber's particular financial
         situation, and (vi) on the basis of the foregoing, the Subscriber has
         determined that investment in the Shares is a suitable investment.

   (c)   Dilution and Additional Indebtedness. Subscriber acknowledges that (i)
         the Company may make additional offerings of equity securities in the
         future which may cause Subscriber and other stockholders to experience
         dilution of their respective percentage ownership of the Company, and
         any such securities subsequently offered may have rights, preferences
         or privileges senior to those of the holders of the Shares, (ii) the
         Company may determine that it is necessary to incur additional
         indebtedness to finance its operations, which could restrict the
         Company's operations, and (iii) there can be no assurance that
         additional equity or debt financing will not be required, and if so
         required, that it will be available on terms favorable to the Company,
         if at all.

   (d)   Restricted Securities. Subscriber understands that the Shares are
         characterized as "restricted securities" under the Securities Act of
         1933, as amended (the "Securities Act"), inasmuch as they are being
         acquired from the Company in a transaction not involving a public
         offering and that under the Securities Act and applicable regulations
         thereunder the Shares may be resold without registration under the
         Securities Act only in certain limited circumstances. In this
         connection, the Subscriber represents that it is familiar with Rule
         144, as presently in effect, promulgated by the SEC under the
         Securities Act and understands the resale limitations imposed thereby
         and by the Securities Act. The Subscriber understands that the Company
         is under no obligation to register any of the Shares sold hereunder.

   (e)   Authorization. If the Subscriber is a corporation, partnership, trust
         or estate, the person executing this Agreement on behalf of the
         Subscriber has reached the age of 21 and been duly authorized and is
         duly qualified to execute and deliver this Agreement and all other
         instruments executed and delivered on behalf of such entity; the
         Subscriber is duly organized, validly existing, and in good standing in
         its jurisdiction of organization and has all the requisite power and
         authority to invest in the Shares as provided herein; and an investment
         in the Shares, to Subscriber's knowledge, does not result in any
         violation of, or conflict with any term of the charter, bylaws,
         partnership agreement, trust instrument or other governing document of
         the Subscriber or any other instrument to which it is bound or any law
         or regulation applicable to it.

   (f)   Purchase for Own Account. The Shares to be granted to the Subscriber
         hereunder will be acquired for investment for the Subscriber's own
         account, not as a nominee or agent, and



                                     2

<PAGE>


         not with a view to the public resale or distribution thereof, and the
         Subscriber has no present intention of selling, granting any
         participation in, or otherwise distributing the same.

   (g)   Accredited Investor Status.  Subscriber is an "accredited investor"
         within the meaning of Regulation D promulgated under the Securities
         Act.

   (h)   Further Limitations on Disposition.  Without in any way limiting the
         representations set forth above, the Subscriber further agrees not to
         make any disposition of all or any portion of the Shares, except:

              (i) pursuant to a registration statement under the Securities Act
         covering such disposition; or


              (ii) pursuant to an exemption from registration under the
         Securities Act, including, without limitation, Rule 144, Rule 144A or
         Regulation S thereunder.

   (i)   Legend. It is understood that the certificates evidencing the Shares
         will bear the legend set forth below:


                  THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE UNITED
                  STATES SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES
                  COMMISSION OF ANY STATE, OR UNDER THE SECURITIES ACT OF 1933,
                  AS AMENDED (THE "ACT"). THESE SECURITIES ARE RESTRICTED AND
                  MAY NOT BE OFFERED, RESOLD, PLEDGED OR TRANSFERRED EXCEPT AS
                  PERMITTED UNDER THE ACT PURSUANT TO AN EFFECTIVE REGISTRATION
                  STATEMENT OR AN EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS.


         The legend set forth above shall be removed by the Company from any
         stock certificate evidencing common stock upon delivery to the Company
         of an opinion by counsel reasonably satisfactory to the Company that a
         registration statement under applicable securities laws is at that time
         in effect with respect to the legended security or that such security
         can be freely transferred in a public sale without such a registration
         statement being in effect and that such transfer will not jeopardize
         the exemption or exemptions from registration pursuant to which the
         Company issued the common stock.

   (j)   No Reliance on Oral Statements.  Subscriber, in purchasing the Shares,
         is not relying on any oral representations, promises or statements made
         by the Company, or any officer, director, employee, agent or attorney
         of the Company.

   (k)   Transferee Undertaking. In connection with any disposition of all or
         any portion of the Shares permitted under this Agreement, the
         Subscriber shall obtain an undertaking from each offeree or purchaser
         of the Shares pursuant to which the offeree or purchaser shall
         represent and warrant the following:

                  (i) purchaser understands that the Shares have not been
                  registered under the Securities Act and that, if in the future
                  it decides to offer, sell, pledge or otherwise



                                   3

<PAGE>


                  transfer such Shares, such Shares may be offered, sold,
                  pledged or otherwise transferred only (A) to a person whom the
                  seller reasonably believes is a qualified institutional buyer
                  in a transaction meeting the requirements of Rule 144A, (B) in
                  an offshore transaction pursuant to and in compliance with
                  Regulation S, (C) pursuant to an exemption from registration
                  under the Securities Act provided by Rule 144, if available,
                  or (D) pursuant to a registration statement under the
                  Securities Act covering such disposition, in all cases in
                  accordance with all applicable securities laws of any state of
                  the United States.

                  (ii) purchaser understands that the Shares will contain a
                  legend to the following effect unless the Company determines
                  such legend is not necessary under applicable laws:


                  "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE U.S.
                  SECURITIES ACT OF 1933, AS AMENDED, AND SUCH SECURITIES MAY
                  NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT
                  (1) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A
                  QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A
                  UNDER SUCH ACT IN A TRANSACTION MEETING THE REQUIREMENTS OF
                  RULE 144A, (2) IN AN OFFSHORE TRANSACTION PURSUANT TO
                  REGULATION S UNDER SUCH ACT, OR (3) PURSUANT TO AN EXEMPTION
                  FROM REGISTRATION UNDER SUCH ACT PROVIDED BY RULE 144, IF
                  AVAILABLE, IN EACH CASE IN ACCORDANCE WITH ANY APPLICABLE
                  SECURITIES LAWS OF ANY STATE OF THE UNITED STATES."


                  (iii) If the offeree or transferee is a qualified
                  institutional buyer as defined in Rule 144A of the Securities
                  Act, that it is aware that the sale to it is being made in
                  reliance on Rule 144A and it is acquiring the Shares for its
                  own account or for the account of a qualified institutional
                  buyer.

   (l)   Survival. The foregoing representations and warranties are true and
         accurate as of the date hereof, shall be true and accurate as of the
         date of the acceptance hereof by the Company and shall survive
         thereafter, including after any termination of this Agreement. If such
         representations and warranties shall not be true and accurate in any
         respect, the Subscriber will, prior to such acceptance, given written
         notice of such fact to the Company specifying which representations and
         warranties are not true and accurate and the reasons therefor.

   (m)   Investment Letter.  Subscriber shall have completed and delivered an
         Investment Letter as of the date of the Closing in the form attached
         hereto as Exhibit A.

            4. Indemnification. The Subscriber acknowledges that he or she
   understands the meaning and legal consequences of the representations and
   warranties contained herein, and the Subscriber hereby agrees to indemnify
   and hold harmless the Company, and each person, if any, who controls the
   Company, within the meaning of Section 15 of the Securities Act and all
   representatives and agents of the Company, including, but not limited to,
   counsel to the Company, against any and all loss, liability, claim, damage
   and expense whatsoever (including,



                                    4

<PAGE>


but not limited to, any and all expenses reasonably incurred in investigating,
preparing or defending against any litigation commenced or threatened or any
claim whatsoever) arising out of or based upon any false representation or
warranty or breach or failure by the Subscriber to comply with any covenant or
agreement made by the Subscriber herein or in any other document furnished by
the Subscriber to any of the foregoing in connection with this transaction.

         5. Conditions.

         (a) Subscriber's ownership interest in the Company shall be governed
solely in accordance with Delaware General Corporation Law, the Company's
Certificate of Incorporation and the Company's By-laws, each as in effect and
as may be amended from time-to-time.

         (b) The Subscriber agrees not to transfer or assign this Agreement, or
any of its interest herein or in the Company, and further agrees, except as
provided herein, that the assignment and transferability of the Shares acquired
pursuant hereto shall be allowed only in accordance with applicable law.

         6. Revocation.  The Subscriber agrees that he or she will not cancel,
terminate, or revoke this Agreement or any agreement made hereunder and that
this Agreement shall survive the death or disability of the Subscriber.

         7. Acceptance of Subscription. Execution of this Agreement by the
Subscriber constitutes an offer by the Subscriber to subscribe for the number of
Shares specified on the signature page hereto. If this offer is rejected for any
reason, the Subscriber's subscription documents shall be returned to the
Subscriber as promptly as practicable and the Company and the Subscriber shall
have no further obligations to each other, other than the obligation of the
Company to return the Subscriber's funds to such Subscriber.

         8.       General Provisions.

         (a) Investigation. It shall be no defense to an action for breach of
this Agreement that the Subscriber or its agents have (or have not) made
investigations into the affairs of the Company or that the Company could not
have known of the misrepresentation or breach of warranty.

         (b) Successors and Assigns.  The terms and conditions of this
Agreement shall inure to the benefit of and be binding upon the respective
successors and assigns of the parties.

         (c) Governing Law; Jurisdiction. This Agreement and the enforcement
thereof shall be governed by and construed under the internal laws of the State
of New York. The parties hereto consent to the non-exclusive jurisdiction of any
New York State or Federal court sitting in the City of New York and any
appellate court from any thereof in any action or proceeding arising out of or
relating to this Agreement.

         (d) Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same agreement.


                                    5

<PAGE>


         (e) Headings. The headings and captions used in this Agreement are used
for convenience only and are not to be considered in construing or interpreting
this Agreement. All references in this Agreement to sections, paragraphs,
exhibits and schedules shall, unless otherwise provided, refer to sections and
paragraphs hereof and exhibits and schedules attached hereto, all of which
exhibits and schedules are incorporated herein by this reference.

         (f) Notices. Any and all notices required or permitted to be given to a
party pursuant to the provisions of this Agreement will be in writing and will
be effective and deemed to provide such party sufficient notice under this
Agreement on the earliest of the following: (i) at the time of personal
delivery, if delivery is in person; (ii) at the time of transmission by
facsimile, addressed to the other party at its facsimile number specified herein
(or hereafter modified by subsequent notice to the parties hereto), with
confirmation of receipt made by both telephone and printed confirmation sheet
verifying successful transmission of the facsimile; (iii) one (1) business day
after deposit with an express overnight courier for deliveries within the U.S.,
or (iv) three (3) business days after deposit in mail by certified mail (return
receipt requested) or equivalent for deliveries within the U.S.

All notices not delivered personally or by facsimile will be sent with postage
and/or other charges prepaid and properly addressed to the party to be notified
at the address or facsimile number indicated for such party, in the case of the
Company, Jeremy D. Kraus, Valesc Holdings Inc., 16200 Addison Road, Suite 190,
Addison, TX 75001, with a copy to Hecht & Associates, P.C., 60 East 42nd Street,
Suite 5101, New York, NY 10165-5101, Attention: Charles J. Hecht, Esq. or, in
the case of the Subscriber, to the address listed at the front of this document,
or at such other address or facsimile number as such other party may designate
by giving ten (10) days advance written notice by one of the indicated means of
notice herein to the other parties hereto. Notices by facsimile shall be machine
verified as received.

Any party hereto (and such party's permitted assigns) may by notice so given
change its address for future notices hereunder. Notice shall conclusively be
deemed to have been given in the manner set forth above.

         (g) Costs, Expenses. Each party hereto shall bear its own costs in
connection with the preparation, execution and delivery of this Agreement.

         (h) No Finder's Fees.  Each party represents that it neither is nor
will be, obligated for any finder's or broker's fee or commission in connection
with this transaction.

         (i) Amendments and Waivers. Any term of this Agreement may be amended
and the observance of any term of this Agreement may be waived (either generally
or in a particular instance and either retroactively or prospectively), only
with the written consent of the Company and the Subscriber. No delay or omission
to exercise any right, power, or remedy accruing to the Subscriber, upon any
breach, default or noncompliance of the Company under this Agreement shall
impair any such right, power, or remedy, nor shall it be construed to be a
waiver of any such breach, default or noncompliance, or any acquiescence
therein, or of any similar breach,


                                    6

<PAGE>


default or noncompliance thereafter occurring. All remedies, either under this
Agreement, by law, or otherwise afforded to the Subscriber, shall be cumulative
and not alternative.

         (j) Severability. If one or more provisions of this Agreement are held
to be unenforceable under applicable law, such provision(s) shall be excluded
from this Agreement and the balance of the Agreement shall be interpreted as if
such provision(s) were so excluded and shall be enforceable in accordance with
its terms.

         (k) Entire Agreement. This Agreement, together with all exhibits and
schedules hereto, constitutes the entire agreement and understanding of the
parties with respect to the subject matter hereof and supersedes any and all
prior negotiations, correspondence, agreements, understandings duties or
obligations between the parties with respect to the subject matter hereof.

         (l) Further Assurances. From and after the date of this Agreement, upon
the request of the Subscriber or the Company, the Company and the Subscriber
shall execute and deliver such instruments, documents or other writings as may
be reasonably necessary or desirable to confirm and carry out and to effectuate
fully the intent and purposes of this Agreement.

DO NOT SIGN THIS SUBSCRIPTION AGREEMENT IF ANY OF THE REPRESENTATIONS AND
WARRANTIES SET FORTH IN SECTION 3 ABOVE ARE UNTRUE OR INACCURATE.
[Signature Page Follows]




                                         7


<PAGE>




         IN WITNESS WHEREOF, the Subscriber has executed this Agreement as of
the date first written above.



Restricted Securities Subscribed              53,836 Shares of Common Stock
                                              ----------------------------------

Total Consideration                           $37,684.93
                                              ----------------------------------


                                                     SUBSCRIBER


                                                     ---------------------------
                                                     Edward Kraus

Subscription Accepted and Agreed as of the date first written above by:

VALESC HOLDINGS INC.


By:___________________________________
Name:
Title:





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<PAGE>



                                                                      Exhibit A
                                                                      ---------
                                INVESTMENT LETTER

                                  Edward Kraus
                                 2605 Woods Lane
                                Garland, TX 75044

                                                        May 28, 2003

Valesc Holdings Inc.
16200 Addison Road, Suite 190
Addison, TX 75001

Dear Sirs:

         The undersigned hereby accepts 53,836 shares of Valesc Holdings Inc.
("Valesc"), $.0001 par value per share common stock (the "Shares"), pursuant to
a Subscription Agreement dated the date hereof (the "Subscription Agreement"),
and Valesc hereby delivers the Shares pursuant to the Subscription Agreement.

         In connection with the foregoing, the undersigned represents that:

         (i) the Shares are being purchased for investment, not for resale or
distribution and not for the purpose of effecting or causing to be effected, a
public offering of any of the Shares;

         (ii) the Shares will not be sold, transferred, assigned or disposed of,
except in accordance with the Securities Act of 1933, as amended, and the Rules
and Regulations of the Securities and Exchange Commission ("SEC") promulgated
thereunder; and

         (iii) the Shares are being purchased for the sole account of the
undersigned and no other understanding exists with regard to the disposition,
sale, transfer or assignment of the Shares other than that set forth herein.

         The undersigned has been advised and understands that it is the view of
the SEC that the foregoing investment representation would be inaccurate if it
merely meant that the present intention of the undersigned was to hold the
Shares for the long term capital gains period of the tax statutes, or for a
deferred sale, or for a market rise, or for sale if the market declines, or for
sale after a fixed period in the future or for sale only if the issuer fails to
operate profitably. The undersigned further understands that, in the view of the
SEC, a change in the market value of Valesc's common stock, a change in the
condition of Valesc, a change in the conditions within the industry in which
Valesc is engaged or, should the Shares be pledged as security for a loan,
foreclosure or threatened foreclosure of such a loan, would not be such a change
in the circumstances as to justify sale of the Shares. The undersigned
understands that it is the view of the SEC that if there is an intention, at the
time the Shares are acquired, to resell them to the




                                      9

<PAGE>

public after the passing of some more or less definitive time period, the Shares
were not truly acquired for investment. The undersigned further understands that
the foregoing is not intended to be a complete listing of the views held by the
SEC relating to the foregoing investment representation.

         The undersigned acknowledges it has been advised that the Shares have
not been registered under the Securities Act of 1933, as amended, and that none
of the Shares may be sold, transferred, assigned or disposed of, except in
accordance with such Act and the Rules and Regulations of the SEC promulgated
thereunder. The undersigned hereby consents that the face of the Shares to be
issued and delivered to it shall contain a restrictive legend as set forth in
the Subscription Agreement.

         The undersigned understands that Valesc is in its initial developmental
stage and that the Shares being purchased involve a high degree of risk. It is
the best judgment of the undersigned that the Shares being purchased hereby are
securities of the kind which the undersigned wishes to purchase and hold for
investment and that the nature and amount of the Shares being acquired are
consistent with the investment program of the undersigned. The undersigned
represents and warrants that the present and anticipated financial position of
the undersigned permits the undersigned to hold the Shares for investment, as
aforesaid.

         The undersigned hereby acknowledges that neither Valesc nor any persons
or parties associated with Valesc has made any representation or warranties of
any kind, nature or description in connection with the sale or offer of the
Shares other than those set forth in the Subscription Agreement. The undersigned
is also relying on its investigation of Valesc and its prospects and represents
that Valesc has answered all its questions and made available all information
requested.

                                                              Very truly yours,



                                                          ---------------------
                                                           Edward Kraus




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