Document:

CONSULTING AGREEMENT

         THIS CONSULTING AGREEMENT (the "Agreement") made and entered into as of
the  24th  day  of  September   1999  by  and  between   Kyoung  Bum  Park  (the
"Consultant"), Summus, Ltd. a Delaware corporation ("Summus") and High Speed Net
Solutions,  Inc.,  a Florida  corporation  ("HSNS").  Summus  and HSNS  shall be
referred to collectively as the "Companies".

                               W I T N E S S E T H

         WHEREAS,  the Companies are desirous of engaging  Consultant to provide
certain  consulting  services to the  Companies  and  Consultant  is desirous of
accepting such engagement;

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, the parties hereby agree as follows:

         1. ENGAGEMENT AS CONSULTANT.  The Companies hereby engage Consultant to
perform consulting  services to the Companies and Consultant hereby accepts such
engagement  and agrees to provide  consulting  services  for the  benefit of the
Companies, in accordance with the terms of this Agreement.

         2. DUTIES OF CONSULTANT.  Consultant agrees to make reasonable and best
efforts to advise and assist the  Companies in obtaining  funding (the  "Funds")
from Samsung Group ("Samsung").  For purposes of this Agreement,  all references
to Funds  shall  include,  but not be  limited  to,  equity  capital  or  equity
investments  or any  funding  accepted  by  either of the  Companies,  including
license fees and/or royalties paid to either or both of the Companies by Samsung
pursuant  to  an  agreement  initiated  and  closed  by  Consultant's   efforts.
Consultant  agrees not to represent or introduce  the wavelet  technology of any
other individuals or companies to Samsung.

         3. TERM.  This Agreement shall commence as of the date hereof and shall
continue  until June 30, 2000,  at which time this  Agreement  shall  terminate,
unless sooner terminated in accordance with the provisions hereof.

         4. CONSULTING FEE: For services rendered  hereunder,  each Company will
pay or cause to be paid to Consultant an amount equal to the following formula:

                  As to Summus:
                  ------------

                  Twelve  percent  (12%) of all Funds  accepted  and received by
Summus from Samsung.

                  As To HSNS:
                  ----------

                  Four percent  (4%) of all Funds  accepted and received by HSNS
                  from  Samsung.   Two  thousand  share  of  HSNS  common  stock
                  (unregistered)   for  each  One   Hundred   Thousand   Dollars
                  ($100,000.00) accepted and received by HSNS from Samsung.

<PAGE>

Payments  owed to  Consultant  under  this  Agreement  will be  made  only  from
collected  Funds  received  from  Samsung and shall be paid over the time period
during which payments from Samsung are received by either of the Companies. Each
Company agrees to make payments to Consultant  within seven (7) business days of
receipt of cleared  funds from Samsung in the Company's  account.  If there is a
failure by either  Company to make any  payment  to  Consultant  within the time
required,  the delinquent  amount shall bear interest at the rate of ten percent
(10%) per annum and shall be owed to Consultant by the  defaulting  Company.  In
addition, the Companies will reimburse Consultant for all normal,  pre-approved,
out of pocket business expenses,  including travel,  meals,  lodging and similar
expenses  incurred  while on business for the Companies  upon  documentation  by
Consultant of such expenses.

         5.  INDEPENDENT  CONTRACTOR  STATUS.  The parties  expressly intend and
agree  that  Consultant  is acting as an  independent  contractor  and not as an
employee of either of the Companies.  Consultant  understands and agrees that he
shall not be entitled to any of the rights and  privileges  established  for the
employees of the Companies (if any),  including but not limited to the following
retirement benefits,  medical insurance coverage,  severance pay benefits,  paid
vacation and sick pay,  overtime pay or any of the foregoing  items.  Consultant
understands  and agrees  that  neither  Company  will pay or  withhold  from the
compensation paid to Consultant  pursuant to this Agreement any sums customarily
paid or withheld  for or on behalf of  employees  for income  tax,  unemployment
insurance,  social security, worker's compensation or any other withholding tax,
insurance or payment  pursuant to any law of governmental  requirement,  and all
such  payments  as may be  required  by  law  are  the  sole  responsibility  of
Consultant.  Consultant  agrees  to hold the  Companies  harmless  against,  and
indemnify the Companies  for any of such payments of  liabilities  for which the
Companies,  or either of them,  may become  liable with respect to such matters.
This Agreement shall not be construed as a partnership agreement.

         The  Companies  shall have no  responsibility  for any of  Consultant's
debts,  liabilities  or other  obligations,  or for the  intentional,  reckless,
negligent or unlawful acts or omissions of Consultant or Consultant's  employees
or agents.

         6. CONFIDENTIALITY. Consultant shall not for any reason or at any time,
whether  during  or after the term of this  Agreement,  disclose  to any  person
(except to the extent that the proper  performance of this Agreement may require
disclosure  to employees or agents of Samsung and such persons have entered into
a confidentiality agreement in form and substance satisfactory to the Companies)
any secret or confidential  information obtained by Consultant in the course of,
or as a result of,  performance of this Agreement,  which secret or confidential
information  relates to either Company or any  subsidiary  corporation of either
Company,  unless so authorized by the President or Executive  Vice  President of
the Company to which such confidential information relates. Any information that
(a) was known prior to receipt  from either  Company free of any  obligation  to
keep such information confidential,  or (b) is disclosed to third parties by the
Company  to  which  such   information   relates   without  any  requirement  of
confidentiality  or which becomes publicly  available other than by unauthorized
disclosures, or (c) is independently developed by Consultant without reliance on

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<PAGE>

any secret or  confidential  information as evidenced by his records,  or (d) is
disclosed as compelled by law, shall not be deemed to be secret or  confidential
for purposes of this Agreement. In the event of a breach or threatened breach by
Consultant of the provisions of this  paragraph,  the affected  Company shall be
entitled to an injunction restraining Consultant from disclosing, in whole or in
part,  any such secret or  confidential  information;  provided,  however,  that
nothing  herein shall be construed as  prohibiting  either Company from pursuing
any other remedies available for any such breach or threatened breach, including
the recovery of damages from Consultant.

         7. RIGHTS TO MATERIALS.  All records, files, memoranda,  reports, price
lists,  customer  lists,  plans,  drawing,  sketches,  documents  and  the  like
(together with all copies thereof) relating to the business of either Company or
any of their  subsidiaries  that  Consultant  shall use or  prepare or come into
contact  with in the  course  or, or as a result  of,  the  performance  of this
Agreement  shall remain the sole property of the Company to whose  business such
information relates. Upon termination of this Agreement or upon the prior demand
of either Company, Consultant shall immediately return all such materials to the
Company to which such materials belong.

         8.  RIGHTS  TO  INVENTIONS  AND   TECHNOLOGY.   Any  and  all  methods,
inventions, patents, trademarks, and other materials developed by the Companies,
their  subsidiaries or any employees of the Companies or their subsidiaries that
Consultant  shall use or come into contact with in the course or, or as a result
of, the  performance of this Agreement shall be and at all times remain the sole
and absolute property of the Company that developed such patents,  inventions or
materials.

         9. TERMINATION FOR CAUSE. A nondefaulting party shall have the right to
terminate this Agreement upon the occurrence of any of the following events, and
the expiration of any applicable period of cure; (a) the failure of a Company to
make any payment  within ten (10) days after the date when  payment is due;  (b)
the failure of Consultant to perform his duties to the  reasonable  satisfaction
of either of the Companies;  (c) the failure of a party to comply with any other
term or condition of this  Agreement  within ten (10) days after written  notice
specifying  the nature of such  default,  without  cure;  and (d) any attempt by
Consultant to assign or otherwise transfer Consultant's rights hereunder.

         In the event that after  termination of this Agreement by the Companies
for cause,  either of the Companies deals with or meets with Samsung,  then this
Agreement  shall  continue to apply with  respect to Samsung for a period of one
year after  termination  notwithstanding  any notice of  termination  previously
given.

         10.      TERMINATION WITHOUT CAUSE.

         (a) Any party may terminate this Agreement  without cause upon not less
than thirty (30) days' prior  written  notice  delivered  to the other  parties;
provided however that both Companies must agree to the termination of Consultant
provided for in this subsection.

         (b) Upon  termination  without cause pursuant to subsection (a) of this
paragraph,  Consultant shall remain entitled to any  compensation  calculated in
accordance  with the formula in Paragraph 4 based on Funds  already  received by

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<PAGE>

either  Company  from  Samsung  and  expenses  incurred by  Consultant  prior to
termination.

         In the event that after  termination of this Agreement by the Companies
without cause,  either of the Companies  deals with or meets with Samsung,  then
this  Agreement  shall continue to apply with respect to Samsung for a period of
one year after termination  notwithstanding any notice of termination previously
given.

         11. REMEDIES UPON BREACH.  In the event of any breach of this Agreement
by Consultant,  the Companies shall be entitled,  if they so elect, to institute
and prosecute proceedings in any court of competent jurisdiction,  either in law
or in  equity,  to enjoin  Consultant  from  violating  any of the terms of this
Agreement, to enforce the specific performance by Consultant of any of the terms
of this  Agreement and so to obtain  damages,  or any of the above,  but nothing
herein  contained  shall be construed to prevent such remedy or  combination  of
remedies  as the  Companies  may,  in their  discretion,  choose to invoke.  The
failure of either Company to promptly  institute legal action upon any breach of
this Agreement shall not constitute a waiver of that or any other breach hereof.

         12.      MISCELLANEOUS PROVISIONS.

         (a) All notices  required or permitted to be given  hereunder  shall be
given in writing and either personally delivered,  or delivered by confirmed fax
or  overnight  mail.  If  notices  are  given to the  Companies,  they  shall be
addressed to:

                           Summus, Ltd.
                           434 Fayetteville Street Mall
                           Suite 600
                           Raleigh, North Carolina 27601
                           Attention:  William B. Silvernail

                           High Speed Net Solutions, Inc.
                           434 Fayetteville Street Mall
                           Suite 600
                           Raleigh, North Carolina 27601
                           Attention:  Andrew Fox

If notices are to Consultant, they shall be addressed to:

                           Kyoung Bum Park
                           283 Sunset Drive
                           Richboro, PA 18954

                  (b)  This  Agreement  contains  the  entire  agreement  of the
parties  with  respect to the subject  matter  hereof and may not be modified or
amended except in writing signed by the party against whom such  modification or
agreement is sought to be enforced.

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<PAGE>

                  (c) Consultant  acknowledges  that this Agreement  replaces in
its  entirety  that  certain  Consulting  Agreement  dated April 21, 1999 by and
between  HSNS and  Consultant,  as amended by a letter dated April 26, 1999 from
HSNS to  Consultant,  agreed  to by  Summus,  and that  upon  execution  of this
Agreement,  the former Consulting Agreement with HSNS shall be null and void and
of no further force and effect.

                  (d)  This  Agreement   shall  be  governed  and  construed  in
accordance  with the laws of the  State of North  Carolina,  without  regard  to
principles of conflicts of laws.

                  (e) In the event of any litigation concerning any controversy,
claim or dispute  between the parties  hereto arising out of or relating to this
Agreement or the breach hereof;  or the  interpretation  hereof,  the prevailing
party shall be entitled to recover  from the losing party  reasonable  expenses,
attorney's  fees, and costs incurred therein or in the enforcement or collection
of any judgment or award rendered therein.

                  (f) The  rights and  obligations  of each  Company  under this
Agreement shall enure to the benefit of and shall be binding upon the successors
and  assigns of that  Company.  Consultant  may not assign his rights and duties
under this Agreement without the prior written consent of the Companies.

         IN WITNESS WHEREOF,  the parties have executed this Agreement as of the
day and year first above written.

                                            SUMMUS, LTD.

                                            By:________________________________
                                                 William B. Silvernail,
                                                 Chief Executive Officer

                                             HIGH SPEED NET SOLUTIONS, INC.

                                             By:_______________________________
                                                  Andrew Fox, President

                                            CONSULTANT

                                            By:________________________________
                                                    Kyoung Bum Park

                                       5CONSULTING AGREEMENT

                  THIS  CONSULTING  AGREEMENT  is made  and  entered  into as of
December 15,  1999,  by and between High Speed Net  Solutions,  Inc.  (HSNS ), a
Florida corporation, and RPC International ("Consultant").

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

                  WHEREAS,  Summus is desirous of Consultant  providing  certain
services to HSNS; and

                  WHEREAS, Consultant desires to provide such services to HSNS;

                  NOW,  THEREFORE,  in  consideration of the premises and mutual
covenants herein contained, the parties hereto hereby agree as follows:

1.       SERVICES.  HSNS  hereby  retains  Consultant  to  perform  professional
         and  management  services  including but not limited to,  business plan
         development,   recruitment  and  hiring  of  HSNS  employees,  customer
         management of HSNS's Online Internet  Advertising  initiative,  and any
         other advisory and managerial responsibilities requested by HSNS.

2.       COMPENSATION.  In  consideration  for  the  services  provided  by  the
         Consultant  hereunder,  HSNS shall pay the Consultant:

         2.1.     A monthly retainer of $30,000 per month;

         2.2      A sales commission as follows:

                  4% of the  subtotal of all HSNS  revenues up to and  including
         $2,000,000  that  are  attributable  to  Online  Internet   Advertising
         accounts developed or managed by RPC;

                  5% of the subtotal of all HSNS  revenues  from  $2,000,001  to
         $5,000,000  that  are  attributable  to  Online  Internet   Advertising
         accounts developed or managed by RPC;

                  6% of the subtotal of all HSNS  revenues  from  $5,000,001  to
         $10,000,000  that  are  attributable  to  Online  Internet  Advertising
         accounts developed or managed by RPC;

                  7%  of  the  subtotal  of  all  HSNS  revenues  in  excess  of
         $10,000,000  that  are  attributable  to  Online  Internet  Advertising
         accounts developed or managed by RPC;

         2.3.     Incentive stock options to purchase from HSNS, up to 200,000
                  of its HSNS restricted  shares  currently held, at an exercise
                  price of Ten Dollars ($10.00) per share.

         2.4      Vesting in the stock options will occur based on the following
                  schedule:

                  2.4.1.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $2,000,000;

<PAGE>

                  2.4.2.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $5,000,000;

                  2.4.3.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $10,000,000;

                  2.4.4.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $20,000,000;

3.       EXPENSES.  HSNS  agrees to  reimburse  the  Consultant  for all  travel
         costs reasonably and actually  incurred by the Consultant in performing
         services under this Agreement,  as well as any other expenses  approved
         by HSNS.

4.       TERM.  This  Agreement  shall be effective as of December 15, 1999, and
         shall  continue  until  December  15,  2000.   This  Agreement  may  be
         terminated  by  either  party  upon  ten  days  prior  written  notice;
         provided,   however,   that   the   obligations   arising   under   the
         Confidentiality and Non-Disclosure Agreement between the Consultant and
         HSNS,  of even date  herewith,  shall survive the  termination  of this
         Agreement.

         4.1.     In the event that this  Agreement is  terminated by HSNS prior
                  to March 31,  2000,  then the  compensation  in  Article 2. 1,
                  Monthly Retainer, shall continue for two months following said
                  termination.  In the event that this  Agreement is  terminated
                  after  March  31,  2000 but  before  June 30,  2000,  then the
                  compensation in Article 2.1,  Monthly  Retainer shall continue
                  for 3 months  following said  termination.  Any termination of
                  this  agreement  by HSNS  after  June 30,  2000  and  prior to
                  December  15,  2000  shall  result  in  Consultant   receiving
                  compensation  under  Article  2. 1 for a  period  of 4  months
                  following said termination.

         4.2.     The compensation in Article 2.2, Sales Commission, shall apply
                  for one year following the termination of this agreement,  but
                  for a period not less than two years from the signing  date of
                  this agreement.

5.       COOPERATION  AND   CONSULTANT.   HSNS  management  and  employees  will
         cooperate  with tile  Consultant  in the  performance  of the  services
         including  participating in one-on-one  interviews and making available
         any  pertinent  information  from files on  personnel  history,  salary
         administration and benefits.

6.       RELATIONSHIP OF THE PARTIES.  The  relationship  between the Consultant
         and HSNS shall be that of an independent contractor.  Nothing contained
         in this  Agreement  shall be deemed to  constitute  a  relationship  of
         agency, joint venture,  partnership or any other relationship than that
         specified.  Consultant  shall be  responsible  for all  income,  social
         security  and other  state,  local and  federal  taxes  that arise as a
         result of the  relationship  contemplated  hereby and the payments made
         hereunder.

7.       CONFIDENTIALITY. The Consultant shall maintain all information obtained
         in  connection  with  Consultant's  performance  under  this  Agreement

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<PAGE>

         confidential  in  accordance  with the terms of a  Confidentiality  and
         Non-Disclosure  Agreement of even date  herewith,  the form of which is
         provided as Exhibit A to this Agreement.

8.       NOTICE. Any notice or other communication under this Agreement shall be
         sufficiently given if hand delivered, sent by prepaid certified mail or
         sent  via  facsimile  so long as a  confirmation  is  received,  to the
         following:

         If to the Consultant:            RPC International LC
                                          P.O. Box 3 RR3
                                          Afton, OK  73162

         If to HSNS:                      Alan R. Kleinmaier
                                          HSNS Ltd.
                                          Suite 2120
                                          434 Fayetteville Street Mall
                                          Raleigh, NC 27601

9.       MODIFICATION; WAIVER; AMENDMENTS. No provision of this Agreement may be
         modified,  waived or  discharged  unless such waiver,  modification  or
         discharge is agreed to in writing,  signed by the  Consultant and HSNS.
         No waiver by any  party  hereto at any time of any  breach by any other
         party hereto of, or compliance with, any condition or provision of this
         Agreement  to be performed by such other party shall be deemed a waiver
         of any similar or dissimilar provisions or conditions at the same or at
         any prior or  subsequent  time.  No  amendments  or  additions  to this
         Agreement  shall be binding unless in writing and signed by all parties
         hereto, except as herein otherwise provided.

10.      APPLICABLE  LAW.  This  Agreement  shall be  governed  in all  respects
         whether  as  to  validity,   construction,   capacity,  performance  or
         otherwise,  by the laws of the State of North Carolina,  without regard
         to choice of law principles.

11.      SEVERABILITY.   The  provisions  of  this  Agreement  shall  be  deemed
         severable and the invalidity or unenforceability of any provision shall
         not affect  the  validity  or  enforceability  of the other  provisions
         hereof.

12.      HEADINGS.  The titles to the sections of this  Agreement are solely for
         the  convenience  of the  parties  and  shall  not be used to  explain,
         modify,  simplify,  or aid in  interpretation of the provisions of this
         Agreement.

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<PAGE>

                  IN WITNESS WHEREOF,  the parties have executed this Consulting
Agreement to be effective as of the day and year first hereinabove written.

                                                RPC International L.C.

                                         /s/ illegible signature
                                         By: President

HSNS, LTD.

/s/ Alan R. Kleinmaier
By:Alan R. Kleinmaier
Executive Vice President

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