AMENDED AND RESTATED SECURITY AGREEMENT

      THIS AMENDED AND RESTATED SECURITY AGREEMENT (the "Agreement"), is entered
into  and made  effective  on  December  30,  2005,  by and  between  EARTHSHELL
CORPORATION,  a  Delaware  corporation  located  at 1301  York  Road,  Suite 200
Lutherville, MD 20193 (the "Company") and CORNELL CAPITAL PARTNERS, LP (referred
to as "Cornell" or the "Secured Party").

      WHEREAS,  on March 23,  2005 the  Company  and  Cornell  entered  into the
Original  Security  Agreement (the "Original  Security  Agreement")  pursuant to
which the Company granted to Cornell a security interest in the Pledged Property
(as  defined  below) to secure  the  Company's  obligations  then  existing  and
thereafter incurred to Cornell as described in the Original Security Agreement;

      WHEREAS,  in  connection  with  the  Securities  Purchase  Agreement  (the
"Securities  Purchase  Agreement") dated the date hereof among the Secured Party
and the  Company,  the Company  shall issue and sell to the Secured  Party up to
Four Million Five Hundred Thousand Dollars  ($4,500,000) of secured  convertible
debentures (the "Convertible Debentures");

      WHEREAS,   in  connection  with  the  transactions   contemplated  by  the
Securities  Purchase  Agreement,  on the date hereof the  Secured  Party and the
Company entered into an Investor  Registration  Rights Agreement  ("Registration
Rights  Agreement"),  an Escrow  Agreement  ("Escrow  Agreement"),  a Pledge and
Escrow  Agreement  ("Company  Pledge  Agreement"),  an Insider Pledge and Escrow
Agreement  (the "Insider  Pledge  Agreement"),  and  Irrevocable  Transfer Agent
Instructions  ("Transfer Agent Instructions")  (this Agreement,  the Convertible
Debentures, Securities Purchase Agreement, Registration Rights Agreement, Escrow
Agreement,  Company Pledge  Agreement,  Insider Pledge  Agreement,  and Transfer
Agent Instructions are collectively referred to as the "Transaction Documents");

      WHEREAS,  to  induce  the  Secured  Party  to enter  into the  Transaction
Documents,  the  Company  hereby  extends the  secured  interest  granted to the
Secured  Party  under the  Original  Security  Agreement  in and to the  Pledged
Property until the satisfaction of the Obligations, as defined herein below; and

      WHEREAS,  the security interest amended hereunder shall relate back to the
UCC-1 filed in  Delaware  on March 18,  2005 (file no.  5087258 1) and the UCC-1
filed in  California  on April 12, 2005 (file no.  05-7022722946)  in connection
with the Original Security Agreement.

      NOW, THEREFORE,  in consideration of the promises and the mutual covenants
herein contained,  and for other good and valuable  consideration,  the adequacy
and receipt of which are hereby acknowledged, the parties hereto hereby agree as
follows:
<PAGE>

                                   ARTICLE 1.

                         DEFINITIONS AND INTERPRETATIONS

      Section 1.1. Recitals.

      The above recitals are true and correct and are  incorporated  herein,  in
their entirety, by this reference.

      Section 1.2. Interpretations.

      Nothing  herein  expressed or implied is intended or shall be construed to
confer upon any person other than the Secured  Party any right,  remedy or claim
under or by reason hereof.

      Section 1.3. Obligations Secured.

      The obligations  secured hereby are any and all obligations of the Company
now  existing or  hereinafter  incurred to the Secured  Party,  whether  oral or
written  and whether  arising  before,  on or after the date  hereof  including,
without limitation,  those obligations of the Company to the Secured Party under
this  Agreement,  the  Transaction  Documents,  and  any  other  amounts  now or
hereafter  owed to the Secured  Party by the  Company  thereunder  or  hereunder
(collectively, the "Obligations").

                                   ARTICLE 2.

                 PLEDGED PROPERTY, ADMINISTRATION OF COLLATERAL
                      AND TERMINATION OF SECURITY INTEREST

      Section 2.1. Pledged Property.

            (a) Company hereby pledges to the Secured Party,  and creates in the
Secured  Party for its  benefit,  a  security  interest  for such time until the
Obligations  are paid in full,  in and to all of the  property of the Company as
set forth in Exhibit  "A"  attached  hereto  and the  products  thereof  and the
proceeds of all such items (collectively, the "Pledged Property"):

            (b)   Simultaneously   with  the  execution  and  delivery  of  this
Agreement,  the  Company  shall make,  execute,  acknowledge,  file,  record and
deliver to the Secured Party any documents  reasonably  requested by the Secured
Party to perfect its security interest in the Pledged  Property.  Simultaneously
with the  execution  and  delivery of this  Agreement,  the Company  shall make,
execute,  acknowledge  and  deliver  to the  Secured  Party such  documents  and
instruments, including, without limitation, financing statements,  certificates,
affidavits  and forms as may, in the Secured  Party's  reasonable  judgment,  be
necessary to effectuate,  complete or perfect, or to continue and preserve,  the
security interest of the Secured Party in the Pledged Property,  and the Secured
Party shall hold such documents and instruments as secured party, subject to the
terms and conditions contained herein.


                                       2
<PAGE>

      Section 2.2. Rights; Interests; Etc.

            (a) So long as no Event of Default (as  hereinafter  defined)  shall
have occurred and be continuing:

                  (i) the Company  shall be  entitled  to  exercise  any and all
rights  pertaining  to the Pledged  Property or any part thereof for any purpose
not inconsistent with the terms hereof; and

                  (ii) the  Company  shall be entitled to receive and retain any
and all payments paid or made in respect of the Pledged Property.

            (b) Upon the  occurrence  and during the  continuance of an Event of
Default:

                  (i) All rights of the Company to exercise  the rights which it
would otherwise be entitled to exercise pursuant to Section 2.2(a)(i) hereof and
to receive payments which it would otherwise be authorized to receive and retain
pursuant to Section  2.2(a)(ii)  hereof shall be suspended,  and all such rights
shall thereupon  become vested in the Secured Party who shall thereupon have the
sole right to exercise  such rights and to receive and hold as Pledged  Property
such  payments;  provided,  however,  that if the  Secured  Party  shall  become
entitled  and shall  elect to  exercise  its  right to  realize  on the  Pledged
Property  pursuant  to  Article 5 hereof,  then all cash  sums  received  by the
Secured Party,  or held by Company for the benefit of the Secured Party and paid
over  pursuant  to  Section  2.2(b)(ii)  hereof,  shall be applied  against  any
outstanding Obligations; and

                  (ii) All interest,  dividends,  income and other  payments and
distributions  which are received by the Company  contrary to the  provisions of
Section  2.2(b)(i)  hereof  shall be  received  in trust for the  benefit of the
Secured Party,  shall be segregated from other property of the Company and shall
be forthwith paid over to the Secured Party; or

                  (iii)  The  Secured  Party  in its  sole  discretion  shall be
authorized to sell any or all of the Pledged  Property at public or private sale
in order to recoup all of the outstanding  principal plus accrued  interest owed
pursuant to the Convertible Debenture as described herein

            (c) An "Event of  Default"  shall be deemed to have  occurred  under
this Agreement upon an Event of Default under the Convertible Debentures.

                                   ARTICLE 3.

                          ATTORNEY-IN-FACT; PERFORMANCE

      Section 3.1. Secured Party Appointed Attorney-In-Fact.

      Upon the occurrence of an Event of Default,  the Company  hereby  appoints
the Secured Party as its attorney-in-fact,  with full authority in the place and
stead of the Company and in the name of the Company or  otherwise,  from time to
time in the  Secured  Party's  discretion  to take any action and to execute any
instrument  which the Secured Party may reasonably  deem necessary to accomplish
the purposes of this Agreement,  including,  without limitation,  to receive and
collect all instruments made payable to the Company representing any payments in
respect of the Pledged  Property or any part thereof and to give full  discharge
for the same.  The  Secured  Party may demand,  collect,  receipt  for,  settle,
compromise,  adjust, sue for,  foreclose,  or realize on the Pledged Property as
and when the Secured Party may determine. To facilitate collection,  the Secured
Party may notify  account  debtors and obligors on any Pledged  Property to make
payments directly to the Secured Party.


                                       3
<PAGE>

      Section 3.2. Secured Party May Perform.

      If the  Company  fails to perform  any  agreement  contained  herein,  the
Secured Party, at its option, may itself perform,  or cause performance of, such
agreement,  and  the  expenses  of the  Secured  Party  incurred  in  connection
therewith shall be included in the Obligations secured hereby and payable by the
Company under Section 8.3.

                                   ARTICLE 4.

                         REPRESENTATIONS AND WARRANTIES

      Section 4.1. Authorization; Enforceability.

      Each of the parties  hereto  represents and warrants that it has taken all
action  necessary to authorize the execution,  delivery and  performance of this
Agreement  and the  transactions  contemplated  hereby;  and upon  execution and
delivery,  this Agreement shall constitute a valid and binding obligation of the
respective party, subject to applicable bankruptcy, insolvency,  reorganization,
moratorium  and similar laws  affecting  creditors'  rights or by the principles
governing the availability of equitable remedies.

      Section 4.2. Ownership of Pledged Property.

      The Company  warrants and  represents  that it is the legal and beneficial
owner of the Pledged  Property  free and clear of any lien,  security  interest,
option or other charge or encumbrance  except for the security  interest created
by this Agreement.

                                   ARTICLE 5.

                    DEFAULT; REMEDIES; SUBSTITUTE COLLATERAL

      Section 5.1. Default and Remedies.

            (a) If an  Event  of  Default  occurs,  then in each  such  case the
Secured Party may declare the Obligations to be due and payable immediately,  by
a  notice  in  writing  to the  Company,  and upon  any  such  declaration,  the
Obligations shall become immediately due and payable.

            (b) Upon the  occurrence  of an Event of Default,  the Secured Party
shall: (i) be entitled to receive all distributions  with respect to the Pledged
Property,  (ii) to cause the Pledged Property to be transferred into the name of
the Secured Party or its nominee,  (iii) to dispose of the Pledged Property, and
(iv) to realize upon any and all rights in the Pledged Property then held by the
Secured Party.


                                       4
<PAGE>

      Section  5.2.  Method  of  Realizing  Upon  the  Pledged  Property:  Other
Remedies.

      Upon the occurrence of an Event of Default,  in addition to any rights and
remedies  available at law or in equity,  the following  provisions shall govern
the Secured Party's right to realize upon the Pledged Property:

            (a) Any item of the Pledged  Property  may be sold for cash or other
value in any number of lots at brokers board, public auction or private sale and
may be sold without  demand,  advertisement  or notice  (except that the Secured
Party shall give the Company ten (10) days' prior written notice of the time and
place  or of the  time  after  which  a  private  sale  may be made  (the  "Sale
Notice")),  which notice period is hereby agreed to be commercially  reasonable.
At any  sale or sales  of the  Pledged  Property,  the  Company  may bid for and
purchase the whole or any part of the Pledged Property and, upon compliance with
the terms of such  sale,  may hold,  exploit  and  dispose  of the same  without
further  accountability  to the  Secured  Party.  The Company  will  execute and
deliver,  or cause to be executed and delivered,  such  instruments,  documents,
assignments,  waivers,  certificates,  and  affidavits and supply or cause to be
supplied such further  information  and take such further  action as the Secured
Party reasonably shall require in connection with any such sale.

            (b) Any cash being held by the Secured Party as Pledged Property and
all cash  proceeds  received  by the  Secured  Party  in  respect  of,  sale of,
collection  from,  or other  realization  upon  all or any  part of the  Pledged
Property shall be applied as follows:

                  (i) to the payment of all  amounts  due the Secured  Party for
the expenses  reimbursable to it hereunder or owed to it pursuant to Section 8.3
hereof;

                  (ii) to the payment of the Obligations then due and unpaid.

                  (iii) the balance,  if any, to the person or persons  entitled
thereto, including, without limitation, the Company.

            (c) In addition to all of the rights and remedies  which the Secured
Party may have pursuant to this  Agreement,  the Secured Party shall have all of
the rights and remedies provided by law, including,  without  limitation,  those
under the Uniform Commercial Code.

                  (i) If the  Company  fails  to pay such  amounts  due upon the
occurrence  of an Event of Default which is  continuing,  then the Secured Party
may institute a judicial  proceeding  for the  collection of the sums so due and
unpaid,  may  prosecute  such  proceeding  to judgment  or final  decree and may
enforce the same against the Company and collect the monies  adjudged or decreed
to be payable in the manner  provided  by law out of the  property  of  Company,
wherever situated.

                  (ii)  The  Company  agrees  that it shall  be  liable  for any
reasonable fees,  expenses and costs incurred by the Secured Party in connection
with  enforcement,  collection and  preservation of the  Transaction  Documents,
including,  without  limitation,  reasonable  legal fees and expenses,  and such
amounts shall be deemed  included as  Obligations  secured hereby and payable as
set forth in Section 8.3 hereof.


                                       5
<PAGE>

      Section 5.3. Proofs of Claim.

            In  case  of  the   pendency   of  any   receivership,   insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or
other judicial proceeding relating to the Company or the property of the Company
or of such other obligor or its creditors,  the Secured Party  (irrespective  of
whether the Obligations shall then be due and payable as therein expressed or by
declaration  or otherwise  and  irrespective  of whether the Secured Party shall
have made any demand on the Company for the payment of the Obligations), subject
to the rights of Previous Security Holders, shall be entitled and empowered,  by
intervention in such proceeding or otherwise:

                  (i) to file and  prove a claim  for the  whole  amount  of the
Obligations  and to file such other  papers or  documents as may be necessary or
advisable in order to have the claims of the Secured Party  (including any claim
for the  reasonable  legal fees and expenses and other expenses paid or incurred
by the Secured  Party  permitted  hereunder  and of the Secured Party allowed in
such judicial proceeding), and

                  (ii) to  collect  and  receive  any  monies or other  property
payable or  deliverable  on any such claims and to distribute  the same; and any
custodian,  receiver,  assignee,  trustee,  liquidator,  sequestrator  or  other
similar  official in any such judicial  proceeding  is hereby  authorized by the
Secured  Party to make such payments to the Secured Party and, in the event that
the Secured Party shall  consent to the making of such payments  directed to the
Secured  Party,  to pay to the Secured  Party any amounts  for  expenses  due it
hereunder.

      Section 5.4. Duties Regarding Pledged Property.

      The Secured Party shall have no duty as to the collection or protection of
the Pledged  Property  or any income  thereon or as to the  preservation  of any
rights pertaining thereto, beyond the safe custody and reasonable care of any of
the Pledged Property actually in the Secured Party's possession.

                                   ARTICLE 6.

                              AFFIRMATIVE COVENANTS

      The Company  covenants and agrees that, from the date hereof and until the
Obligations  have been fully paid and satisfied,  unless the Secured Party shall
consent otherwise in writing (as provided in Section 8.4 hereof):

      Section 6.1. Existence, Properties, Etc.

            (a) The  Company  shall  do,  or cause to be done,  all  things,  or
proceed with due  diligence  with any actions or courses of action,  that may be
reasonably necessary (i) to maintain Company's due organization, valid existence
and good  standing  under  the laws of its state of  incorporation,  and (ii) to
preserve  and keep in full  force and effect all  qualifications,  licenses  and
registrations in those  jurisdictions in which the failure to do so could have a
Material Adverse Effect (as defined below); and (b) the Company shall not do, or
cause to be done, any act impairing the Company's  corporate  power or authority
(i) to carry on the Company's business as now conducted,  and (ii) to execute or
deliver this Agreement or any other document  delivered in connection  herewith,
including,  without limitation,  any UCC-1 Financing  Statements required by the
Secured  Party  to  which  it is or  will  be a  party,  or  perform  any of its
obligations  hereunder or thereunder.  For purpose of this  Agreement,  the term
"Material  Adverse  Effect"  shall  mean any  material  and  adverse  affect  as
determined by Secured Party in its sole discretion,  whether  individually or in
the aggregate, upon (a) the Company's assets, business,  operations,  properties
or condition,  financial or otherwise;  (b) the Company's to make payment as and
when due of all or any part of the Obligations; or (c) the Pledged Property.


                                       6
<PAGE>

      Section 6.2. Financial Statements and Reports.

      The Company shall  furnish to the Secured  Party within a reasonable  time
such  financial  data as the Secured Party may  reasonably  request,  including,
without limitation, the following:

            (a) The balance  sheet of the Company as of the close of each fiscal
year,  the statement of earnings and retained  earnings of the Company as of the
close of such fiscal year,  and statement of cash flows for the Company for such
fiscal year,  all in reasonable  detail,  prepared in accordance  with generally
accepted  accounting  principles  consistently  applied,  certified by the chief
executive and chief financial  officers of the Company as being true and correct
and  accompanied  by a certificate  of the chief  executive and chief  financial
officers of the Company, stating that the Company has kept, observed,  performed
and fulfilled  each covenant,  term and condition of this Agreement  during such
fiscal  year  and  that no  Event  of  Default  hereunder  has  occurred  and is
continuing, or if an Event of Default has occurred and is continuing, specifying
the nature of same,  the period of  existence of same and the action the Company
proposes to take in connection therewith;

            (b) A balance  sheet of the  Company as of the close of each  month,
and  statement of earnings and retained  earnings of the Company as of the close
of  such  month,  all  in  reasonable  detail,  and  prepared  substantially  in
accordance with generally accepted accounting  principles  consistently applied,
certified by the chief executive and chief financial  officers of the Company as
being true and correct; and

            (c) Copies of all accountants'  reports and  accompanying  financial
reports  submitted to the Company by independent  accountants in connection with
each annual examination of the Company.

      Section 6.3. Accounts and Reports.

      The Company shall  maintain a standard  system of accounting in accordance
with generally accepted accounting principles  consistently applied and provide,
at its sole expense, to the Secured Party the following:

            (a)  as  soon  as   available,   a  copy  of  any  notice  or  other
communication  alleging any nonpayment or other material  breach or default,  or
any  foreclosure or other action  respecting any material  portion of its assets
and properties,  received  respecting any of the  indebtedness of the Company in
excess of $15,000 (other than the  Obligations),  or any demand or other request
for  payment  under any  guaranty,  assumption,  purchase  agreement  or similar
agreement or arrangement respecting the indebtedness or obligations of others in
excess of $15,000,  including  any received  from any person acting on behalf of
the Secured Party or beneficiary thereof; and


                                       7
<PAGE>

            (b) within fifteen (15) days after the making of each  submission or
filing,  a copy of any report,  financial  statement,  notice or other document,
whether periodic or otherwise,  submitted to the shareholders of the Company, or
submitted to or filed by the Company with any governmental  authority  involving
or affecting (i) the Company that could have a Material Adverse Effect; (ii) the
Obligations;  (iii)  any  part  of the  Pledged  Property;  or  (iv)  any of the
transactions contemplated in this Agreement or the Loan Instruments.

      Section 6.4. Maintenance of Books and Records; Inspection.

      The Company shall  maintain its books,  accounts and records in accordance
with generally accepted accounting  principles  consistently applied, and permit
the Secured Party, its officers and employees and any  professionals  designated
by the  Secured  Party in  writing,  at any time to visit and inspect any of its
properties  (including but not limited to the collateral  security  described in
the  Transaction  Documents  and/or the Loan  Instruments),  corporate books and
financial  records,  and to discuss its accounts,  affairs and finances with any
employee, officer or director thereof.

      Section 6.5. Maintenance and Insurance.

            (a) The Company shall maintain or cause to be maintained, at its own
expense,  all of its assets and  properties in good working order and condition,
making all necessary repairs thereto and renewals and replacements thereof.

            (b) The Company shall maintain or cause to be maintained, at its own
expense, insurance in form, substance and amounts (including deductibles), which
the Company deems reasonably  necessary to the Company's business,  (i) adequate
to insure all assets and properties of the Company,  which assets and properties
are of a  character  usually  insured by persons  engaged in the same or similar
business  against loss or damage  resulting from fire or other risks included in
an extended coverage policy; (ii) against public liability and other tort claims
that may be incurred by the Company; (iii) as may be required by the Transaction
Documents  and/or  applicable  law and (iv) as may be  reasonably  requested  by
Secured Party, all with adequate, financially sound and reputable insurers.

      Section 6.6. Contracts and Other Collateral.

      The Company shall perform all of its obligations  under or with respect to
each  instrument,  receivable,  contract  and other  intangible  included in the
Pledged  Property  to which the Company is now or  hereafter  will be party on a
timely basis and in the manner therein required,  including, without limitation,
this Agreement.


                                       8
<PAGE>

      Section 6.7. Defense of Collateral, Etc.

      The Company shall defend and enforce its right,  title and interest in and
to any part of: (a) the Pledged  Property;  and (b) if not  included  within the
Pledged  Property,  those assets and properties whose loss could have a Material
Adverse Effect,  the Company shall defend the Secured  Party's right,  title and
interest in and to each and every part of the Pledged Property, each against all
manner of claims and demands on a timely  basis to the full extent  permitted by
applicable law.

      Section 6.8. Payment of Debts, Taxes, Etc.

      The Company shall pay, or cause to be paid,  all of its  indebtedness  and
other liabilities and perform, or cause to be performed,  all of its obligations
in accordance with the respective terms thereof, and pay and discharge, or cause
to be paid or discharged,  all taxes, assessments and other governmental charges
and levies  imposed upon it, upon any of its assets and  properties on or before
the last day on which the same may be paid without  penalty,  as well as pay all
other  lawful  claims  (whether  for  services,  labor,  materials,  supplies or
otherwise) as and when due, except for existing trade payables  disclosed to the
Secured Party for which the Company is negotiating settlements.

      Section 6.9. Taxes and Assessments; Tax Indemnity.

      The  Company  shall (a) file all tax  returns  and  appropriate  schedules
thereto that are required to be filed under applicable law, prior to the date of
delinquency,  (b) pay and  discharge  all taxes,  assessments  and  governmental
charges or levies imposed upon the Company,  upon its income and profits or upon
any  properties  belonging  to it, prior to the date on which  penalties  attach
thereto,  and (c) pay all taxes,  assessments and governmental charges or levies
that,  if  unpaid,  might  become a lien or charge  upon any of its  properties;
provided,  however,  that the  Company in good faith may  contest  any such tax,
assessment,  governmental  charge or levy described in the foregoing clauses (b)
and (c) so long as appropriate reserves are maintained with respect thereto.

      Section 6.10. Compliance with Law and Other Agreements.

      The Company shall  maintain its business  operations and property owned or
used in connection  therewith in  compliance  with (a) all  applicable  federal,
state and  local  laws,  regulations  and  ordinances  governing  such  business
operations and the use and ownership of such property,  and (b) all  agreements,
licenses,  franchises,  indentures and mortgages to which the Company is a party
or by which the Company or any of its properties is bound.  Without limiting the
foregoing,  the Company shall pay all of its indebtedness promptly in accordance
with the terms  thereof,  except for existing  trade  payables  disclosed to the
Secured Party for which the Company is negotiating settlements.

      Section 6.11. Notice of Default.

      The  Company  shall  give  written  notice  to the  Secured  Party  of the
occurrence  of any  default  or Event  of  Default  under  this  Agreement,  the
Transaction  Documents or any other Loan  Instrument  or any other  agreement of
Company for the payment of money, promptly upon the occurrence thereof.


                                       9
<PAGE>

      Section 6.12. Notice of Litigation.

      The Company shall give notice, in writing, to the Secured Party of (a) any
actions,  suits or  proceedings  wherein  the  amount  at issue is in  excess of
$50,000,  instituted by any persons against the Company, or affecting any of the
assets of the Company,  and (b) any dispute,  not resolved  within  fifteen (15)
days of the  commencement  thereof,  between the Company on the one hand and any
governmental  or regulatory  body on the other hand,  which might  reasonably be
expected  to have a  Material  Adverse  Effect  on the  business  operations  or
financial condition of the Company.

                                   ARTICLE 7.

                               NEGATIVE COVENANTS

      The Company  covenants  and agrees  that,  from the date hereof  until the
Obligations  have been fully paid and satisfied,  the Company shall not,  unless
the Secured Party shall consent otherwise in writing:

      Section 7.1. Indebtedness.

      The  Company  shall not  directly or  indirectly  permit,  create,  incur,
assume, permit to exist,  increase,  renew or extend on or after the date hereof
any indebtedness on its part,  including  commitments,  contingencies and credit
availabilities, or apply for or offer or agree to do any of the foregoing.

      Section 7.2. Liens and Encumbrances.

      The Company shall not directly or indirectly make, create,  incur,  assume
or permit to exist any assignment, transfer, pledge, mortgage, security interest
or other lien or  encumbrance  of any  nature in, to or against  any part of the
Pledged Property or of the Company's  capital stock, or offer or agree to do so,
or own or acquire or agree to acquire  any asset or  property  of any  character
subject to any of the foregoing  encumbrances  (including any  conditional  sale
contract or other title retention  agreement),  or assign,  pledge or in any way
transfer or encumber  its right to receive any income or other  distribution  or
proceeds from any part of the Pledged  Property or the Company's  capital stock;
or enter into any  sale-leaseback  financing  respecting any part of the Pledged
Property as lessee,  or cause or assist the inception or  continuation of any of
the foregoing.

      Section   7.3.   Certificate   of   Incorporation,    By-Laws,    Mergers,
Consolidations, Acquisitions and Sales.

      Without  the prior  express  written  consent of the  Secured  Party,  the
Company shall not: (a) Amend its Certificate of Incorporation or By-Laws; (b) be
a party to any merger,  consolidation or corporate reorganization,  (c) purchase
or otherwise  acquire all or substantially all of the assets or stock of, or any
partnership or joint venture interest in, any other person,  firm or entity, (d)
sell,  transfer,  convey,  grant a  security  interest  in or  lease  all or any
substantial  part of its assets,  nor (e) create any subsidiaries nor convey any
of its  assets to any  subsidiary,  unless  the  Secured  Party is  concurrently
granted a first priority security interest in the assets of such subsidiary.


                                       10
<PAGE>

      Section 7.4. Management, Ownership.

      The Company shall not materially change its ownership,  executive staff or
management  without  the  prior  written  consent  of  the  Secured  Party.  The
ownership, executive staff and management of the Company are material factors in
the Secured Party's willingness to institute and maintain a lending relationship
with the Company.

      Section 7.5. Dividends, Etc.

      The Company  shall not declare or pay any dividend of any kind, in cash or
in property, on any class of its capital stock, nor purchase,  redeem, retire or
otherwise  acquire for value any shares of such stock, nor make any distribution
of any kind in respect thereof,  nor make any return of capital to shareholders,
nor make any payments in respect of any  pension,  profit  sharing,  retirement,
stock option,  stock bonus,  incentive  compensation  or similar plan (except as
required or permitted hereunder, and except for matching payments to the Company
employee's  401(k)  plans),  without  the prior  written  consent of the Secured
Party.

      Section 7.6. Guaranties; Loans.

      The  Company  shall not  guarantee  nor be liable in any  manner,  whether
directly or  indirectly,  or become  contingently  liable after the date of this
Agreement in connection  with the  obligations or  indebtedness of any person or
persons,  except  for  (i)  the  indebtedness  currently  secured  by the  liens
identified on the Pledged  Property  identified on Exhibit A hereto and (ii) the
endorsement  of  negotiable  instruments  payable to the  Company for deposit or
collection  in the ordinary  course of business.  The Company shall not make any
loan,  advance or  extension  of credit to any  person  other than in the normal
course of its business.

      Section 7.7. Debt.

      The  Company  shall  not  create,  incur,  assume  or  suffer to exist any
additional  indebtedness of any description whatsoever in an aggregate amount in
excess of $75,000  (excluding  any  indebtedness  of the  Company to the Secured
Party,  trade  accounts  payable and accrued  expenses  incurred in the ordinary
course of business and the endorsement of negotiable  instruments payable to the
Company,  respectively  for  deposit or  collection  in the  ordinary  course of
business).

      Section 7.8. Conduct of Business.

      The  Company  will  continue to engage,  in an  efficient  and  economical
manner, in a business of the same general type as conducted by it on the date of
this Agreement.


                                       11
<PAGE>

      Section 7.9. Places of Business.

      The location of the  Company's  chief place of business is 1301 York Road,
Suite 200,  Lutherville,  MD 20193. The Company shall not change the location of
its chief place of  business,  chief  executive  office or any place of business
disclosed  to the  Secured  Party or move any of the Pledged  Property  from its
current  location  without thirty (30) days' prior written notice to the Secured
Party in each instance.

                                   ARTICLE 8.

                                  MISCELLANEOUS

      Section 8.1. Notices.

      All  notices or other  communications  required or  permitted  to be given
pursuant to this  Agreement  shall be in writing and shall be considered as duly
given on:  (a) the date of  delivery,  if  delivered  in person,  by  nationally
recognized  overnight  delivery  service or (b) five (5) days  after  mailing if
mailed from within the  continental  United  States by  certified  mail,  return
receipt requested to the party entitled to receive the same:

If to the Secured Party:  Cornell Capital Partners, LP
                          101 Hudson Street-Suite 3700
                          Jersey City, New Jersey 07302
                          Attention: Mark Angelo
                          Portfolio Manager
                          Telephone: (201) 986-8300
                          Facsimile: (201) 985-8266

With a copy to:           Troy Rillo, Esq.
                          101 Hudson Street, Suite 3700
                          Jersey City, NJ 07302
                          Telephone: (201) 985-8300
                          Facsimile: (201) 985-8266


                                       12
<PAGE>

And if to the Company:    EarthShell Corporation
                          1301 York Road, Suite 200
                          Lutherville, MD 20193
                          Attention: Scott Houston
                          Telephone: (410) 847-9420
                          Facsimile: (410) 847-9431

With a copy to:           Kirkpatrick & Lockhart Nicholson Graham, LLP
                          201 South Biscayne Boulevard, Suite 2000
                          Miami, Florida 33131
                          Attention: Clayton E. Parker, Esq.
                          Telephone: (305) 539-3306
                          Facsimile: (305) 328-7095

      Any party may  change  its  address  by giving  notice to the other  party
stating its new address.  Commencing on the tenth (10th) day after the giving of
such notice, such newly designated address shall be such party's address for the
purpose of all notices or other communications required or permitted to be given
pursuant to this Agreement.

      Section 8.2. Severability.

      If any provision of this Agreement shall be held invalid or unenforceable,
such  invalidity  or  unenforceability  shall attach only to such  provision and
shall not in any  manner  affect or render  invalid or  unenforceable  any other
severable  provision of this Agreement,  and this Agreement shall be carried out
as if any such invalid or unenforceable provision were not contained herein.

      Section 8.3. Expenses.

      In the event of an Event of Default,  the Company  will pay to the Secured
Party the amount of any and all  reasonable  expenses,  including the reasonable
fees  and  expenses  of its  counsel,  which  the  Secured  Party  may  incur in
connection  with: (i) the custody or  preservation  of, or the sale,  collection
from, or other realization upon, any of the Pledged Property;  (ii) the exercise
or enforcement of any of the rights of the Secured Party  hereunder or (iii) the
failure by the Company to perform or observe any of the provisions hereof.

      Section 8.4. Waivers, Amendments, Etc.

      The Secured  Party's  delay or failure at any time or times  hereafter  to
require  strict  performance  by  Company  of any  undertakings,  agreements  or
covenants shall not waiver,  affect,  or diminish any right of the Secured Party
under this Agreement to demand strict compliance and performance  herewith.  Any
waiver by the  Secured  Party of any Event of Default  shall not waive or affect
any other Event of Default, whether such Event of Default is prior or subsequent
thereto and whether of the same or a different type.  None of the  undertakings,
agreements  and  covenants of the Company  contained in this  Agreement,  and no
Event of Default,  shall be deemed to have been waived by the Secured Party, nor
may this  Agreement  be  amended,  changed  or  modified,  unless  such  waiver,
amendment,  change or  modification  is  evidenced by an  instrument  in writing
specifying  such waiver,  amendment,  change or  modification  and signed by the
Secured Party.


                                       13
<PAGE>

      Section 8.5. Continuing Security Interest.

      This Agreement shall create a continuing  security interest in the Pledged
Property and shall: (i) remain in full force and effect until payment in full of
the  Obligations;  and (ii) be binding upon the Company and its  successors  and
heirs and (iii) inure to the benefit of the Secured Party and its successors and
assigns.  Upon the  payment  or  satisfaction  in full of the  Obligations,  the
Company shall be entitled to the return, at its expense,  of such of the Pledged
Property as shall not have been sold in  accordance  with  Section 5.2 hereof or
otherwise applied pursuant to the terms hereof.

      Section 8.6. Independent Representation.

      Each party hereto  acknowledges and agrees that it has received or has had
the opportunity to receive  independent legal counsel of its own choice and that
it has been sufficiently apprised of its rights and responsibilities with regard
to the substance of this Agreement.

      Section 8.7. Applicable Law: Jurisdiction.

      This Agreement shall be governed by and interpreted in accordance with the
laws of the State of New Jersey  without regard to the principles of conflict of
laws.  The parties  further agree that any action between them shall be heard in
Hudson County,  New Jersey,  and expressly consent to the jurisdiction and venue
of the  Superior  Court of New Jersey,  sitting in Hudson  County and the United
States  District  Court for the  District of New Jersey  sitting in Newark,  New
Jersey  for the  adjudication  of any civil  action  asserted  pursuant  to this
Paragraph.

      Section 8.8. Waiver of Jury Trial.

      AS A FURTHER INDUCEMENT FOR THE SECURED PARTY TO ENTER INTO THIS AGREEMENT
AND TO MAKE THE  FINANCIAL  ACCOMMODATIONS  TO THE COMPANY,  THE COMPANY  HEREBY
WAIVES ANY RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING  RELATED IN ANY WAY TO
THIS AGREEMENT AND/OR ANY AND ALL OTHER DOCUMENTS RELATED TO THIS TRANSACTION.

      Section 8.9. Entire Agreement.

      This  Agreement  constitutes  the entire  agreement  among the parties and
supersedes any prior agreement or  understanding  among them with respect to the
subject matter hereof.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


                                       14
<PAGE>

      IN WITNESS  WHEREOF,  the  parties  hereto  have  executed  this  Security
Agreement as of the date first above written.


                                            COMPANY:

                                            EARTHSHELL CORPORATION


                                            By: /s/ Scott Houston
                                               ---------------------------------
                                               Name:  Scott Houston
                                               Title: Chief Financial Officer


                                            SECURED PARTY:

                                            CORNELL CAPITAL PARTNERS, LP

                                            By:  Yorkville Advisors, LLC
                                            Its: General Partner


                                            By: /s/ Mark Angelo
                                               ---------------------------------
                                               Name:  Mark Angelo
                                               Title: Portfolio Manager


                                       15
<PAGE>

                                    EXHIBIT A
                         DEFINITION OF PLEDGED PROPERTY

      For the purpose of securing prompt and complete payment and performance by
the  Company  of  all  of  the  Obligations,  the  Company  unconditionally  and
irrevocably hereby grants to the Secured Party a continuing security interest in
and to, and lien upon, the following Pledged Property of the Company:

            (a)  all  goods  of  the  Company,  including,  without  limitation,
machinery,  equipment, furniture,  furnishings,  fixtures, signs, lights, tools,
parts,  supplies  and  motor  vehicles  of every  kind and  description,  now or
hereafter owned by the Company or in which the Company may have or may hereafter
acquire any interest, and all replacements, additions, accessions, substitutions
and proceeds thereof,  arising from the sale or disposition  thereof,  and where
applicable,  the proceeds of insurance  and of any tort claims  involving any of
the foregoing;

            (b) all inventory of the Company, including, but not limited to, all
goods, wares,  merchandise,  parts, supplies,  finished products, other tangible
personal  property,  including such inventory as is temporarily out of Company's
custody or  possession  and  including  any returns  upon any  accounts or other
proceeds,  including insurance proceeds,  resulting from the sale or disposition
of any of the foregoing;

            (c) all  contract  rights and general  intangibles  of the  Company,
including, without limitation,  goodwill, trademarks, trade styles, trade names,
leasehold interests,  partnership or joint venture interests, patents and patent
applications,  copyrights,  deposit  accounts  whether  now  owned or  hereafter
created;

            (d) all documents, warehouse receipts, instruments and chattel paper
of the Company whether now owned or hereafter created;

            (e) all accounts and other  receivables,  instruments or other forms
of  obligations  and  rights to  payment  of the  Company  (herein  collectively
referred  to as  "Accounts"),  together  with the  proceeds  thereof,  all goods
represented  by such  Accounts  and all such goods that may be  returned  by the
Company's  customers,  and  all  proceeds  of any  insurance  thereon,  and  all
guarantees,  securities  and liens which the Company may hold for the payment of
any such  Accounts  including,  without  limitation,  all rights of  stoppage in
transit,  replevin and reclamation and as an unpaid vendor and/or lienor, all of
which  the  Company  represents  and  warrants  will be bona  fide and  existing
obligations of its respective customers, arising out of the sale of goods by the
Company in the ordinary course of business;

            (f) to the extent assignable,  all of the Company's rights under all
present and future  authorizations,  permits,  licenses and franchises issued or
granted in connection with the operations of any of its facilities;

            (g)  all  products  and  proceeds  (including,  without  limitation,
insurance proceeds) from the above-described Pledged Property.