Document:

Exhibit 4.1
                                                        SUBSCRIPTION NUMBER 725S

                               SUMMUS, INC. (USA)
                             SUBSCRIPTION AGREEMENT

THIS SUBSCRIPTION AGREEMENT (the "Agreement") by and between Summus, Inc. (USA),
a corporation organized and existing under the laws of the State of Florida (the
"Company"), and the undersigned subscriber, ______________, (the
"Subscriber") for shares of preferred stock, no par value per share, of the
Company (the "Preferred Stock").

                               W I T N E S S E T H

         WHEREAS, the Company has offered the Subscriber an opportunity to
purchase shares of the Company's Series C Convertible Preferred Stock (the
"Shares") pursuant to a private offering (the "Offering"); and

         WHEREAS, the Subscriber desires to purchase the Shares being offered on
the terms and conditions set forth herein.

         NOW, THEREFORE, for and in consideration of the premises and the mutual
covenants hereinafter set forth, the parties hereby agree as follows:

    1. The Subscriber hereby subscribes and agrees to purchase, subject to the
terms and conditions of this Agreement, the number of Shares set forth
immediately before the signature page hereof at a purchase price of $1,000 per
Share. This Agreement represents an irrevocable offer by the Subscriber to
subscribe for such number of Shares, except as expressly provided herein. This
Agreement, subject to the terms hereof, shall become a contract for the sale of
said Shares upon the acceptance thereof by the Company.

    2. The Company reserves the unrestricted right to accept or reject this
subscription, in whole or in part, and to withdraw this offer at any time. The
subscription will not become effective unless and until accepted by the Company.

    3. This subscription is accompanied by the undersigned's certified or
official bank check or wire transfer of immediately available funds in the
dollar amount set forth on page 5 hereof.

    4. If this subscription is not accepted by the Company, the Company shall
promptly return the undersigned's payment.

    5. The Subscriber hereby makes the representations and warranties set forth
below with the express intention that they be relied upon by the Company in
determining the suitability of the Subscriber to purchase Shares. The Subscriber
hereby agrees to advise the Company if any of Subscriber's representations in
this Section 5 materially change prior to completion of this subscription.

<PAGE>

         (a) The Subscriber acknowledges that the Shares have not been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
or under any applicable state securities laws on the grounds that the issuance
of the shares to Subscriber is exempt from registration. The Subscriber further
acknowledges that reliance on such exemption is, in part, based upon the
representations, warranties and covenants of Subscriber contained herein.

         (b) The Subscriber is acquiring the Shares for the Subscriber's own
account as principal for the Subscriber's investment and not with a view to or
for resale in connection with any distribution thereof.

         (c) The Subscriber is a citizen of THE UNITED STATES AND A RESIDENT OF
THE STATE OF FLORIDA and will be the beneficial owner of the Shares standing in
his/her name.

         (d) The Subscriber has been furnished and has carefully reviewed
information about the Company to allow him to make an informed investment
decision prior to purchasing the Shares and has been given the opportunity to
ask questions of, and receive answers from, the Company concerning the business
plans of the Company, its present financial condition and the terms and
conditions of the Offering and to obtain such additional information that the
Company possesses or can acquire without unreasonable effort or expense
necessary to verify the accuracy of the information contained therein or
information that has been otherwise provided by the Company.

         (e) The Subscriber acknowledges and is aware that (i) the Shares have
not been approved or disapproved by the Securities and Exchange Commission or by
any state securities commission, (ii) the Shares are a speculative investment
which involve material risk of loss of the Subscriber's entire investment, and
(iii) there are substantial restrictions on the transferability of the Shares.

         (f) The Subscriber fully understands and agrees that the Subscriber
must bear the economic risk of investment in the Shares for an indefinite period
of time because, among other reasons, the Shares have not been registered under
the Securities Act or under any applicable state securities laws and, therefore,
cannot be sold, pledged, assigned, transferred or otherwise disposed of unless
they are subsequently registered under applicable securities laws or an
exemption from such registration is available. The Subscriber further
understands and agrees that the Company will not honor any attempt by the
Subscriber to sell, pledge, assign, transfer or otherwise dispose of Shares in
the absence of an effective registration statement for such Shares or an opinion
of counsel satisfactory to the Company that an exemption from any applicable
registration requirements is available. The Subscriber further understands that,
other than the Registration Rights Agreement between the Company and Subscriber,
dated July 10, 2003, the Company is under no obligation to register the Shares
or make an exemption from registration available. The Subscriber agrees to hold
the Company, its officers and directors, and its and their respective successors
and assigns, harmless and to indemnify them against all liabilities, costs and
expenses incurred by them as a result of any sale or distribution of the Shares
by the Subscriber in violation of the Securities Act or any state securities
laws.

         (g) The Subscriber understands that the certificate(s) representing the
Shares will bear restrictive legends substantially in the following form:

                                       2
<PAGE>

                  THE SHARES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
         REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR UNDER THE
         SECURITIES LAWS OF ANY STATE AND HAVE BEEN ISSUED IN RELIANCE UPON AN
         EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OF
         1933, AS AMENDED, AND SUCH OTHER SECURITIES LAWS. THE SHARES MAY NOT BE
         RE-OFFERED, SOLD, PLEDGED, ASSIGNED, TRANSFERRED, HYPOTHECATED OR
         OTHERWISE DISPOSED OF IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
         STATEMENT UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND SUCH
         REGISTRATION OR QUALIFICATION AS MAY BE NECESSARY UNDER THE SECURITIES
         LAWS OF ANY STATE, OR AN OPINION OF COUNSEL SATISFACTORY TO THE
         CORPORATION THAT SUCH REGISTRATION OR QUALIFICATION IS NOT REQUIRED.

         (h) The Subscriber has sought such accounting, legal and tax advice as
the Subscriber has considered necessary to make an informed investment decision.

         (i) The Subscriber is aware that no federal or state agency has made
any finding or determination as to the fairness of an investment in the Shares,
nor any recommendation or endorsement of any such investment.

         (j) The Subscriber recognizes that it is important under the Securities
Act and state securities laws that the Company determine if the Subscriber is an
"Accredited Investor," as defined in APPENDIX A attached hereto. Subscriber
represents that Subscriber is an Accredited Investor and has checked all
categories of Accredited Investor on APPENDIX A that apply.

    The representations, warranties, covenants and agreements contained in this
Section 5 shall survive the delivery of, and the payment for, the Shares.

    6. The Company hereby makes the representations and agreements set forth
below in this Section 6 in connection with the subscription of the Shares in
this Offering:

         (a) The Board of Directors of the Company shall appoint Donald D.
Hammett to the Board of Directors of the Company and shall nominate Mr. Hammett
as a Director of the Company to be included in the Company's proxy statement for
its 2003 annual meeting and submit him for election by the shareholders of the
Company at such shareholders' meeting. This appointment to the Board and the
inclusion of Mr. Hammett in the proxy statement for election as a Director by
the shareholders of the Company at the 2003 annual meeting is contingent upon
(i) a satisfactory result of the standard investigation of Mr. Hammett by the
Company's investigative group, which is standard for all potential directors and
executive officers of the Company, and (ii) the receipt by the Company,
cumulatively, of $2.5 million from all Subscribers purchasing shares of the
Company's Series C Convertible Preferred Stock in the Offering.

         (b) The Company represents and warrants that (i) it owns all technology
for which it has submitted patent applications (the "Technology") to the U.S.
Patent Office, and (ii) that all assignments by the appropriate employees and

                                       3
<PAGE>

officers of the Company relating to the Technology have been executed and filed
in the U.S. Patent Office, and (iii) if the Company makes any application for
any international patents relating to the Technology, the Company shall own such
international applications and any resulting international patents.

         (c) The Company represents and warrants that (i) all payments for the
Company's Directors and Officers Insurance for the fiscal year ending December
31, 2003 has been made, and (ii) that such insurance is in effect for a total
coverage of $5,000,000.

         (d) For a period of twelve (12) months from the receipt of the $2.5
million investment from the Subscribers in the Company's Series C Convertible
Preferred Stock (the "Series C Receipt Date"), the Company shall not spend more
than $50,000 per month for the payment to vendors of past payable amounts owed
to such vendors or subject to settlements with such vendors for such past
payable amounts as of the Series C Receipt Date.

         The representations, warranties, covenants and agreements contained in
this Section 6 shall survive the delivery of, and the payment for, the Shares.

    7. This Agreement and subscription herein shall survive the death or
disability of any individual Subscriber and the dissolution or termination of
any subscribing entity, and this Agreement shall be binding upon the heirs,
executors, administrators, successors and assigns of any such Subscriber. All
pronouns and any variations thereof used herein shall be deemed neuter, singular
or plural as the identity of the Subscriber may require.

    8. This Agreement shall be enforced, governed and construed in all respects
in accordance with the laws of the State of North Carolina, as such laws are
applied by North Carolina courts to agreements entered into and to be performed
in North Carolina without regard to conflicts of law.

    9. The number of Shares subscribed for by the Subscriber and their
registration of ownership are as set forth on page 5 of this Agreement:

    10. This Agreement shall be binding upon and shall inure to the benefit of
the parties hereto and their respective successors, assigns, executors and
administrators, but this Agreement and the respective rights and obligations of
the parties hereunder shall not be assignable by any party hereto without the
prior written consent of the other.

    11. This Agreement represents the entire understanding and agreement between
the parties hereto with respect to the subject matter hereof and cannot be
amended, supplemented or modified except by an instrument in writing signed by
the party against whom enforcement of any such amendment, supplement or
modification is sought.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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<PAGE>

PLEASE TYPE OR PRINT

Owner:  _______________
Social Security or Federal:
Employer's ID Number:
Residence
Address:
Mailing Address (if other than Residence):
Telephones:  Res. __________   Bus. __________   Fax.__________
Email._________

Joint Owner (if any):___________________________

Social Security or Federal:_____________________

Employer's ID Number:___________________________

Residence Address:______________________________
Mailing Address
(if other than
Residence):
Telephones:  Res. ____________________________   Bus. _________________________
SHARES TO BE REGISTERED AS INDICATED BELOW:

[   ] Sole ownership
[   ] Joint tenants with right of survivorship
[   ] Tenants in common

Number of Shares subscribed for:  250
Total Purchase Price ($1,000 PER SHARE):  $250,000.00
PAYMENT IN FULL DELIVERED IN AMOUNT OF:  $250,000.00

                                       5
<PAGE>

IN WITNESS WHEREOF, the undersigned has executed or cause to be executed under
seal this Agreement, as of July 10, 2003.

                                SIGNATURE FORM FOR INDIVIDUALS
                                                                         (SEAL)
                                      Signature________________________________
                                      Name:____________________________________

                                           ______________________________(SEAL)
                                           (Signature of Joint Owner, if any)
                                      Name:____________________________________

                                SIGNATURE FORM FOR CORPORATIONS:
                                      (Name of corporation)

                                       By:_____________________________________
                                          (Signature of Officer

                                       _________________________________________
                                      (Name and Title)

                                SIGNATURE FORM FOR PARTNERSHIPS OR LIMITED
                                LIABILITY COMPANIES:

                                       _________________________________________
                                       (Name of Partnership or LLC)

                                BY ITS GENERAL PARTNERS OR MANAGERS:

                                      Name:____________________________________

                                      Name:____________________________________

                                      Name:____________________________________

                                 SIGNATURE FORM FOR TRUSTS:

                                       _________________________________________
                                       (Full Name of Trust)

                               BY ITS TRUSTEE(S):

                                      Name:____________________________________

                                      Name:____________________________________

                                      Name:____________________________________

                                       6
<PAGE>

                           ACCEPTANCE OF SUBSCRIPTION

The, foregoing Subscription Agreement is ACCEPTED by the Company, on July __,
2003, for ___ shares of its Series C Preferred Stock.

                                             SUMMUS, INC. (USA)

                                             BY:_______________________________
                                                    BJORN JAWERTH
                                                    CHIEF EXECUTIVE OFFICER

                                       7
<PAGE>

                                   APPENDIX A

AN ACCREDITED INVESTOR IS DEFINED AS FOLLOWS. PLEASE CHECK ALL DEFINITIONS THAT
APPLY.

/ /   a natural person whose individual net worth, or joint net worth with that
      person's spouse, at the time of purchase exceeds U.S. $1,000,000;

/ /   a natural person who had an individual income in excess of U.S. $200,000
      in each of the two most recent years or joint income with that person's
      spouse in excess of U.S. $300,000 in each of those years and has a
      reasonable expectation of reaching the same income level in the current
      year (i.e., the year in which the purchase is made);

/ /    any trust, with total assets in excess of U.S. $5,000,000, not formed
       for the specific purpose of acquiring shares of PreferredStock and/or
       warrants, whose purchase is directed by a sophisticated person having
       such knowledge and experience in financial and business matters that
       she is capable of evaluating the merits and risks of investing in the
       Company;

/ /    a director or executive officer of the Company;

/ /    an organization described in Section 501(c)(3) of the Internal Revenue
       Code, corporation, Massachusetts or similar business trust, or
       partnership, not formed for the specific purpose of acquiring the
       shares of PreferredStock and/or warrants, with total assets in excess
       of U.S. $5,000,000;

/ /    a bank as defined in Section 3(a)(2) of the Securities Act of 1933 (the
       "Securities Act"), or a savings and loan association or other
       institution as defined in Section 3(a)(5)(A) of the Securities Act
       whether acting in its individual or fiduciary capacity; a broker dealer
       registered under the Securities Exchange Act of 1934; an insurance
       company as defined in Section 2(13) of the Act; an investment company
       registered under the Investment Company Act of 1940 or a business
       development company as defined in Section 2(a)(48) of that Act; a Small
       Business Investment Company licensed under the Small Business
       Investment Act of 1958; an employee benefit plan within the meaning of
       Title I of the Employee Retirement Income Security Act of 1974, if the
       investment decision is made by a plan fiduciary, which is either a
       bank, savings and loan association, an insurance company, or registered
       investment adviser, or if the employee benefit plan has total assets in
       excess of U.S. $5,000,000 or, if a self-directed plan, with investment
       decisions made solely by persons that are accredited investors;

                                       8
<PAGE>

/ /    a private business development company as defined in the Investment
       Advisers Act of 1940; or

/ /    an entity in which all of the equity owners are Accredited Investors.

                                       9Exhibit 4.2
                SERIES C PREFERRED REGISTRATION RIGHTS AGREEMENT

         AGREEMENT by and among Summus, Inc. (USA), a Florida corporation (the
"Company"), and the holder of the Company's Common Stock whose name is set forth
on the signature page to this Agreement ("Shareholder").

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

         WHEREAS, the Company has sold shares of its Series C Convertible
Preferred Stock (the "Series C Preferred Stock") to the Shareholder under a
Subscription Agreement dated July 10, 2003 (the "Subscription Agreement"), which
are convertible into shares of the Common Stock of the Company as set forth in
the Statement of Rights and Preferences of the Company's Series C Preferred
Stock, as filed with the Secretary of State of the state of Florida; and

         WHEREAS, in connection with the Subscription Agreement and Warrant to
Purchase Shares of Common Stock dated the date hereof (the "Warrant"), the
Company intends to register certain shares of the Company's Common Stock into
which the Series C Preferred Stock is convertible and the Warrants are
exercisable, and the Shareholder desires that the Company register certain
shares, as set forth on Schedule 1 hereto, of the Company's Common Stock held or
to be held by Shareholder (the "Shares") in such registration.

         NOW THEREFORE, in consideration of the premises and the mutual terms
and provisions hereof, the parties hereto hereby agree as follows:

         1. DEFINITIONS. For purposes of this Agreement, the following terms
shall have the following respective meanings:

         (a) "Act" shall mean the Securities Act of 1933, as amended, or any
similar federal statute enacted hereafter, and the rules and regulations of the
Commission thereunder, all as the same shall be in effect from time to time.

         (b) "Commission" shall mean the Securities and Exchange Commission or
any other federal agency at the time administering the Act.

         (c) The terms "register," "registered" and "registration" refer to a
registration effected by preparing and filing a registration statement in
compliance with the Act and the declaration or ordering of effectiveness of such
registration statement by the Commission.

         2. REGISTRATION. The Company shall use its best efforts to register the
Shares set forth on Schedule 1 pursuant to a registration statement on Form S-1,
or such other form designated by the Commission that the Company is eligible to
use, within ninety (90) days of the any conversion of the Company's Series C
Preferred Stock by the Shareholder. The Shareholder acknowledges and understands
that: (i) the Company shall register only the Shares as set forth on Schedule 1
hereto in fulfillment of its obligations to register the Shareholder's
securities under this Agreement or any agreement; and (ii) the Company shall be
under no additional obligation to register any other securities of the Company
held by Shareholder, including, without limitation, options or other rights of
the Shareholder to acquire securities of the Company.

<PAGE>

         3. FURNISH INFORMATION. The Shareholder shall furnish to the Company
such information regarding Shareholder, Shareholder's officers, directors,
shareholders, family members, and affiliates, as applicable, the Shares and the
intended method of disposition of the Shares as the Company shall reasonably
request and as shall be required in connection with the action to be taken by
the Company.

         4. SUSPENSION OF DISPOSITION OF SHARES. Shareholder agrees that, upon
receipt of any notice from the Company, of (a) the happening of any event as a
result of which the prospectus included in such registration statement contains
an untrue statement of a material fact or omits any fact necessary to make the
statements therein not misleading, (b) any requests by the Commission for
amendments or supplements to the registration statement or the prospectus or for
additional information, (c) the issuance of any stop order suspending the
effectiveness of the registration statement, (d) the information in the
registration statement no longer being sufficient to permit continued sales
under the registration statement, or (e) the receipt by the Company of any
notification with respect to the suspension of the qualification of the Shares
for sale in any jurisdiction, Shareholder will forthwith discontinue disposition
of the Shares until the Company notifies the Shareholder in writing that sales
of Shares may continue. If so directed by the Company, such Shareholder will
deliver to the Company (at the expense of the Company) all copies, other than
permanent file copies then in such Shareholder's possession, of the prospectus
covering such Shares current at the time of receipt of such notice.

         5. EXPENSES OF REGISTRATION. All reasonable expenses, other than
underwriting discounts and commissions, incurred in connection with
registrations, filings or qualifications pursuant to Section 2, including,
without limitation, all registration, listing and qualification fees, printers
and accounting fees and the fees and disbursements of counsel for the Company
shall be borne by the Company. The Shareholder shall bear the fees and
disbursements of its own counsel.

         6. LIMITATION OF THE COMPANY'S OBLIGATIONS. The Company shall not be
obligated under this Agreement to register or include in any registration Shares
that Shareholder has requested to be registered if the Company shall furnish
Shareholder with a written opinion of counsel reasonably satisfactory to
Shareholder, that all Shares that Shareholder holds may be publicly offered,
sold and distributed without registration under the Act pursuant to Rule 144
promulgated by the Commission under the Act without restriction as to the amount
of securities that can be sold.

         7. INDEMNIFICATION.

                  (a) Except in the case of a sale by Shareholder in violation
of Section 4 hereof, the Company agrees to indemnify and hold harmless
Shareholder, its directors, its officers and each person, if any, who controls
any Shareholder within the meaning of Section 15 of the Act or Section 20 of the

                                       2
<PAGE>

Exchange Act, from and against any and all losses, claims, damages, liabilities
and judgments (including, without limitation, any reasonable legal or other
expenses incurred in connection with investigating or defending any matter,
including any action, that could give rise to any such losses, claims, damages,
liabilities or judgments) caused by any untrue statement of a material fact
contained in the registration statement filed by the Company pursuant to Section
2, including any preliminary prospectus or final prospectus contained therein
(or any amendment thereto), or caused by any omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading except insofar as such losses, claims,
damages, liabilities or judgments are caused by any such untrue statement or
omission or alleged untrue statement or omission based upon information relating
to any Shareholder furnished in writing to the Company by such Shareholder
expressly for use therein.

                  (b) Shareholder agrees to indemnify and hold harmless the
Company, its directors, its officers and each person, if any, who controls the
Company within the meaning of Section 15 of the Act or Section 20 of the
Exchange Act, from and against any and all losses, claims, damages, liabilities
and judgments (including, without limitation, any legal or other expenses
incurred in connection with investigating or defending any matter, including any
action, that could give rise to any such losses, claims, damages, liabilities or
judgments) caused by any untrue statement of a material fact contained in the
registration statement filed pursuant to Section 2, including any preliminary
prospectus or final prospectus contained therein (or any amendment thereto), or
caused by any omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, but only with respect to losses, claims, damages, liabilities and
judgments caused by an untrue statement or omission or alleged untrue statement
or omission based on information relating to such Shareholder furnished in by or
on behalf of such Shareholder expressly for use in the registration statement
filed pursuant to Section 2, including any preliminary prospectus or final
prospectus contained therein (or any amendment thereto).

                  (c) In case any action shall be commenced involving any person
in respect of which indemnity may be sought pursuant to Sections 7(a) and 7(b)
(the "Indemnified Party"), the indemnified party shall promptly notify the
person against whom such indemnity may be sought (the "Indemnifying Party") in
writing and the Indemnifying Party shall assume the defense of such action,
including the employment of counsel reasonably satisfactory to the Indemnified
Party and the payment of all reasonable fees and expenses of such counsel, as
incurred. Any Indemnified Party shall have the right to employ separate counsel
in any such action and participate in the defense thereof, but the fees and
expenses of such counsel shall be at the expense of the Indemnified Party unless
(i) the employment of such counsel shall have been specifically authorized in
writing by the Indemnifying Party, (ii) the Indemnifying Party shall have failed
to assume the defense of such action or employ counsel reasonably satisfactory
to the Indemnified Party or (iii) the named parties to any such action
(including any impleaded parties) include both the Indemnified Party and the
Indemnifying Party, and the Indemnified Party shall have been advised by such
counsel that there may be one or more legal defenses available to it which are
different from or additional to those available to the Indemnifying Party (in
which case the Indemnifying Party shall not have the right to assume the defense
of such action on behalf of the Indemnified Party). In any such case, the

                                       3
<PAGE>

Indemnifying Party shall not, in connection with any one action or separate but
substantially similar or related actions in the same jurisdiction arising out of
the same general allegations or circumstances, be liable for (i) the reasonable
fees and expenses of more than one separate firm of attorneys (in addition to
any local counsel) for (x) the Company, its directors, its officers and all
persons, if any, who control the Company within the meaning of either such
Section, and (iii) the reasonable fees and expenses of more than one separate
firm of attorneys (in addition to any local counsel) for the Shareholders, and
all such fees and expenses shall be reimbursed as they are incurred. The
Indemnifying Party shall indemnify and hold harmless the Indemnified Party from
and against any and all losses, claims, damages, liabilities and judgments by
reason of any settlement of any action (i) effected with its written consent or
(ii) effected without its written consent if the settlement is entered into more
than twenty business days after the Indemnifying Party shall have received a
written request from the Indemnified Party for reimbursement for the fees and
expenses of counsel (in any case where such fees and expenses are at the expense
of the Indemnifying Party) and, prior to the date of such settlement, the
Indemnifying Party shall have failed to comply with such reimbursement request.
No Indemnifying Party shall, without the prior written consent of the
Indemnified Party, effect any settlement or compromise of, or consent to the
entry of judgment with respect to, any pending or threatened action in respect
of which the Indemnified Party is or could have been a party and indemnity or
contribution may be or could have been sought hereunder by the Indemnified
Party, unless such settlement, compromise or judgment (i) includes an
unconditional release of the Indemnified Party from all liability on claims that
are or could have been the subject matter of such action and (ii) does not
include a statement as to or an admission of fault, culpability or a failure to
act, by or on behalf of the Indemnified Party.

                  (d) To the extent the indemnification provided for in this
Section 7 is unavailable (other than in accordance with the terms hereof) to an
Indemnified Party or insufficient in respect of any losses, claims, damages,
liabilities or judgments referred to therein, then each Indemnifying Party, in
lieu of indemnifying such Indemnified Party, shall contribute to the amount paid
or payable by such Indemnified Party as a result of such losses, claims,
damages, liabilities and judgments (i) in such proportion as is appropriate to
reflect the relative benefits received by the Indemnifying Party or parties on
the one hand and the Indemnified Party or parties on the other hand from the
offering of the Shares or (ii) if the allocation provided by clause 7(d)(i)
above is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause 7(d)(i) above
but also the relative fault of the Indemnifying Party or parties on the one hand
and the Indemnified Party or parties on the other hand in connection with the
statements or omissions which resulted in such losses, claims, damages,
liabilities or judgments, as well as any other relevant equitable
considerations. The relative fault of the Company and the Shareholder shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to information supplied by the Company or the
Shareholder, and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such statement or omission. The amount
paid or payable by an Indemnified Party as a result of the losses, claims,
damages, liabilities or judgments referred to in the immediately preceding
paragraph shall be deemed to include, subject to the limitations set forth
above, any reasonable legal or other expenses incurred by such Indemnified Party
in connection with investigating or defending any matter, including any action,
that could have given rise to such losses, claims, damages, liabilities or
judgments. No person guilty of fraudulent misrepresentation (within the meaning
of Section 11(f) of the Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

                                       4
<PAGE>

                  (e) The remedies provided for in this Section 7 are not
exclusive and shall not limit any rights or remedies which may otherwise be
available to any Indemnified Party at law or in equity.

         8. AGREEMENTS OF THE SHAREHOLDER. Shareholder agrees, whether or not
the transactions contemplated in this Agreement are consummated or this
Agreement is terminated, to pay or cause to be paid all reasonable expenses
incident to the performance of the Shareholder's obligations under this
Agreement, including: (i) the fees, disbursements and expenses of Shareholder's
counsel in connection with the registration and delivery of the Shares under the
Act, (ii) all costs and expenses related to the transfer and delivery of the
Shares, including any transfer or other taxes payable thereon, and (iii) all
other costs and expenses incident to the performance of the obligations of the
Shareholder hereunder for which provision is not otherwise made in this Section.
The provisions of this Section shall not supersede or otherwise affect any
separate agreement that the Company and any Shareholder may have for allocation
of such expenses among themselves.

         9. AMENDMENTS AND WAIVERS. The provisions of this Agreement, including
the provisions of this sentence, may be amended, modified or supplemented, and
waivers or consents to departures from the provisions hereof may be given, by
written consent of the Company and the Shareholder.

         10. NOTICES. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, registered
first-class mall, telex, telecopier, or air courier guaranteeing overnight
delivery:

         (a) if to Shareholder, at the most current address given by such
Shareholder to the Company in accordance with the provisions of this Section 10,
which address initially shall be the address given to the Company upon
acquisition of the Shares unless the Shareholder has notified the Company of a
change of address; and

         (b) if to the Company, initially at its address set forth below and
thereafter at such other address, notice of which is given in accordance with
the provisions of this Section 10:

                          Summus, Inc. (USA)
                          434 Fayetteville Street Mall
                          Suite 600
                          Raleigh, North Carolina 27601
                          Attention: Chief Operating Officer

                                       5
<PAGE>

         All such notices and communications shall be deemed to have been duly
given at the time delivered by hand, if personally delivered; two business days
after being deposited in the mail, postage prepaid, if mailed; when answered
back, if telexed; when receipt acknowledged, if telecopied; and on the next
business day, if timely delivered to an air courier guaranteeing overnight
delivery.

         11. COUNTERPARTS. This Agreement may be executed in one or more
counterparts, each of which when so executed shall be deemed to be an original
and all of which taken together shall constitute one and the same agreement.

         12. HEADINGS. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

         13. GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of North Carolina.

         14. SEVERABILITY. In the event that any one or more of the provisions
contained herein, or the application thereof in any circumstance, is held
invalid, illegal or unenforceable, the validity, legality and enforceability of
any such provision in every other respect and of the remaining provisions
contained herein shall not be affected or impaired thereby.

         15. ENTIRE AGREEMENT. This Agreement, in conjunction with the
Subscription Agreement and the Warrant, is intended by the parties as a final
expression of their agreement and intended to be a complete and exclusive
statement of the agreement and understanding of the parties hereto in respect of
the subject matter contained herein. There are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein
with respect to the registration rights granted by the Company with respect to
the Shares. This Agreement supersedes all prior agreements and understandings
between the parties with respect to registration of the Shares. Nothing in this
Agreement shall preclude the Company from entering into any other agreement
having the same or different terms with any holder of the Company's securities
or any third party with respect to registration rights or related matters.

         16. PARTIES BENEFITED. Nothing in this Agreement, express or implied,
is intended to confer upon any third party any rights, remedies, obligations or
liabilities.

                                       6
<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Agreement as of July
__, 2003.

                                               Summus, Inc. (USA)

                                               By:____________________________
                                                  BJORN JAWERTH
                                                  CHIEF EXECUTIVE OFFICER

                                                SHAREHOLDER:

                                                 _______________________________
                                                 _________________

                                       7
<PAGE>

                                   SCHEDULE 1
                             SHARES TO BE REGISTERED

_________                                            shares of Common Stock of
                                                     the Company into which the
                                                     shares of Series C
                                                     Preferred Stock held by the
                                                     Shareholder are
                                                     convertible.

_________                                            shares of Common Stock of
                                                     the Company pursuant to the
                                                     exercise of the Warrant.

                                       8

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