Document:

<PAGE>

                                                                  Exhibit 10.12

                                        CONFIDENTIAL TREATMENT REQUESTED
                                        UNDER 17 C.F.R. SECTIONS 200.80 (B)(4),
                                        200.83 AND 230.406

            CONTRACT FOR PURCHASE AND SALE OF EQUIPMENT AND SERVICES

     This Contract for Purchase and Sale of Equipment and Services (the
Contract is made and entered into as of this 28th day of December, 1999 (the
Effective Date) by and between Zero Mountain Cold Storage, an Arkansas
Corporation (the Buyer) and Titan Scan Corp., a Delaware Corporation (the
seller) with reference to the following recitals of fact.

     RECITALS:

     A. Buyer is a cold storage facility owner and point of distribution for
poultry and other products.

     B. Seller is a Delaware corporation engaged in the business of designing,
manufacturing, selling, installing, operating and servicing product
pasteurization and sterilization equipment and systems, including electron beam
and x-ray equipment and systems.

     C. Buyer has agreed to purchase from Seller, and Seller has agreed to
sell to Buyer, an x-ray system to be used by Buyer for pasteurizing
sterilizing poultry and food products. Buyer has also agreed to purchase from
Seller, and Seller has agreed to sell to Buyer, all additional equipment and
systems required by Buyer on the terms and conditions contained in this
Contract.

     D. The parties are desirous of documenting their understanding of the
terms and conditions which will govern the purchase and sale transactions
contemplated herein.

     NOW, THEREFORE, the parties agree as follows:

     1. EQUIPMENT PURCHASED

     Upon the terms, and subject to the conditions set forth in this Contract,
Seller shall sell, transfer, assign, convey and deliver to Buyer, for the
purchase price specified in paragraph 2, below, one (1) SUREBEAM x-ray food cold
pasteurization sterilization system (the "System"). The System will conform in
all respects to the Final specifications which will be completed and delivered
to Buyer and be capable of meeting all USDA, and FDA specifications regarding
food irradiation on or before the date established in paragraph 2.1 of this
Contract for payment of the first installment payment in accordance with this
Contract. Buyer's consent shall not be unreasonably delayed or withheld. Below
is a summary of the preliminarily agreed upon System components. The Buyer and
the Seller will work together after execution of this agreement and jointly
prepare a detail System specifications list:

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Contract as of
the effective date that is first set forth above. As Amended by Eric DeMarco and
Mark Rumsey.

                                      ZERO MOUNTAIN COLD STORAGE

                                      By: /s/ Mark Rumsey
                                         ---------------------------------------
                                              Mark Rumsey, President and CEO

                                      TITAN SCAN CORP.

                                      By: /s/ Eric DeMarco
                                         ---------------------------------------

<PAGE>

            CONTRACT FOR PURCHASE AND SALE OF EQUIPMENT AND SERVICES

     This Contract for Purchase and Sale of Equipment and Services (the
Contract is made and entered into as of this 28th day of December, 1999 (the
Effective Date) by and between Zero Mountain Cold Storage, an Arkansas
Corporation (the Buyer) and Titan Scan Corp., a Delaware Corporation (the
seller) with reference to the following recitals of fact.

     RECITALS:

     A. Buyer is a cold storage facility owner and point of distribution for
poultry and other products.

     B. Seller is a Delaware corporation engaged in the business of designing,
manufacturing, selling, installing, operating and servicing product
pasteurization and sterilization equipment and systems, including electron beam
and x-ray equipment and systems.

     C. Buyer has agreed to purchase from Seller, and Seller has agreed to
sell to Buyer, an x-ray system to be used by Buyer for pasteurizing
sterilizing poultry and food products. Buyer has also agreed to purchase from
Seller, and Seller has agreed to sell to Buyer, all additional equipment and
systems required by Buyer on the terms and conditions contained in this
Contract.

     D. The parties are desirous of documenting their understanding of the
terms and conditions which will govern the purchase and sale transactions
contemplated herein.

     NOW, THEREFORE, the parties agree as follows:

     1. EQUIPMENT PURCHASED

     Upon the terms, and subject to the conditions set forth in this
Contract, Seller shall sell, transfer, assign, convey and deliver to Buyer,
for the purchase price specified in (1) SUREBEAM x-ray food cold
pasteurization sterilization system (the "System"). The System will conform
in all respects to the Final specifications which will be completed and
delivered to Buyer and be capable of meeting all USDA, and FDA specifications
regarding food irradiation on or before the date established in paragraph 2.1
of this Contract for payment of the first installment payment in accordance
with this Contract. Buyer's consent shall not be unreasonably delayed or
withheld. Preliminary and Final Specifications are hereinafter referred to
collectively as "Equipment Specifications" and will be jointly determined by
Buyer and Seller:

         1. Electron Accelerator System and Controls;

<PAGE>

         2. All required product conveyors;

         3. Equipment assembly;

         4. Equipment status and validation;

         5. Dosimetry equipment: maintenance training and operating training;

         6. All necessary x-ray targets;

         7. Control system;

         8. All required System software; and

         9. All reasonable, customary Systems engineering.

         Seller shall also sell, transfer, assign, convey and deliver to Buyer
all non-proprietary, non-confidential System documentation, including, without
limitation, recommended spare parts list, service and maintenance schedules,
as-built drawings and schematics, and operations, training, service and/or
repair manuals (the "System Documentation").

     2. PURCHASE PRICE

     Subject to any adjustments required by this paragraph, the base purchase
price (the "Preliminary Purchase Price") to be paid by Buyer to Seller for
the System shall be [...***...] dollars. The Preliminary Purchase Price shall
be adjusted, either upward or downward, upon the written approval and consent
of both Buyer and Seller as reasonably required by the Equipment
Specifications (the "Purchase Price"). The parties acknowledge that the
Purchase Price is a "fixed fee" which is deemed to include all sales and
similar taxes, payment for all delivery, transportation, installation,
assembly, calibration, testing, validation, and certification costs and
expenses, as well as the provision of all services incident thereto, all in
accordance with the Equipment Specifications.

     2.1 PAYMENT OF PURCHASE PRICE

     The Purchase Price to paid by Buyer to Seller for the System shall be paid
in installments in accordance with the following payment schedule:

     FIRST PAYMENT:        [...***...] of the Purchase Price upon the
                           closing by Buyer of the debt financing.

                       *Confidential Treatment Requested
<PAGE>

     SECOND PAYMENT:       [...***...] of the Purchase Price upon the
                           expiration of [...***...] from the due date for
                           the first payment.

     THIRD PAYMENT:        [...***...] of the Purchase Price upon the
                           expiration of [...***...] from the due date for
                           the second payment.

     FOURTH PAYMENT:       [...***...] of the Purchase Price upon the
                           expiration of [...***...] from the due date for
                           the third payment.

     FINAL PAYMENT:        The balance of the Purchase Price shall be paid
                           either upon the expiration of [...***...] from
                           the due date of the forth payment, or acceptance of
                           the System by Buyer in accordance with paragraph 4
                           below, whichever date is later, provided however,
                           that the Final Payment shall be made by Buyer to
                           Seller no later than [...***...] so long as delivery
                           and/or acceptance of the System has not been delayed
                           due to circumstances beyond Seller's control.

     3. DELIVERY OF SYSTEM

     3.1 TIME OF DELIVERY

     The parties anticipate that once this Contract is executed, it will take
approximately nine (9) to twelve (12) months from the date Buyer obtains the
debt financing to commence and complete the Equipment Specifications and
manufacture of the System. Seller agrees to use commercially reasonable
efforts to complete the System during this time period, deliver it to Buyer,
install it at Buyer's facilities, and render it operational. Prior to the
date Seller has completed the manufacture of the System, Buyer and Seller
shall agree, in writing, on the date for delivery for the System to Buyer's
facilities.

     3.2 PLACE OF DELIVERY

     Prior to the date Seller has completed the manufacture of the System,
Buyer shall specify, in writing, the location to which Seller shall deliver
the System. Seller shall thereafter deliver this System F.O.B. at the
location so identified by Buyer.

     4. INSTALLATION

     Upon delivery of the System, Seller shall properly assemble and install
the System and all components therof, at Buyer's facilities. Prior to
Buyer's acceptance, Seller shall also do all of the following:

          a. Properly calibrate and test the System, and all components
thereof, to ensure that it is operating properly and within acceptable
tolerances in accordance with the Equipment Specifications;

          b. Obtain, or provide Buyer with all necessary information and/or
documentation necessary for obtaining, all required federal, state, local
and/or other governmental approvals, licenses

                    *Confidential Treatment Requested
<PAGE>

and/or certifications required for the operation of the System, and its
components:

          c. Provide to Buyer, and its employees, the training as set forth
in the Equipment Specifications, in the proper use and operation of the
System, and each of its components, such that Buyer can properly operate the
System independently and without the continued assistance of Seller.

          d. Deliver to Buyer all System Documentation as required under
paragraph 1 of this Contract.

     The System shall be deemed accepted by Buyer upon performance by Seller
of items a-d of this Section 4, provided Seller is not in material breach of
any other term of this Contract.

     5. RISK OF LOSS

     The risk of loss, injury or destruction of the System, its components,
machinery, equipment and materials, from any cause whatsoever, shall be born
by the Seller until delivery to Buyer's facilities in accordance with
paragraph 3.2 of this Contract.

     6. WARRANTIES

     6.1 SELLER'S WARRANTIES

     Seller warrants that the System, and each of its components, will be
free from any defects in design, materials and workmanship for a period of
[...***...] (hereinafter the "Warranty Period") from the date of acceptance
of the System by the Buyer or [...***...] from the date of delivery of the
System, whichever first occurs. Seller further warrants that the System will
function in accordance with the Equipment Specifications, and that the System
will conform in all particulars to the requirements of any federal, state or
local governmental rule, regulation or standard governing the operation or
use of the System, including, without limitation, rules and regulations
promulgated by the United States Department of Agriculture. THE ABOVE
WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, AND
SELLER SPECIFICALLY WARRANTIES THIS EQUIPMENT FOR MERCHANT ABILITY AND
FITNESS FOR A PARTICULAR PURPOSE.

     Notwithstanding anything to the contrary, in no event shall Seller's
liability arising out of or in connection with Seller's performance under
this Contract exceed the Purchase Price.

     6.2 REPAIR OBLIGATION

     Promptly upon receipt of written notification from Buyer, Seller shall
inspect the equipment. If,

                    *Confidential Treatment Requested
<PAGE>

in Seller's opinion, there is a defect in design, materials or workmanship
covered by Seller's Warranty, then Seller shall repair or replace, at its
election, without cost or expense to Buyer, such defects in design, materials
or workmanship.

     7. EXCLUSIVITY SEE ATTACHMENT:

     7.1 EXCLUSIVE SUPPLIER

     Except as set forth in paragraphs 7.2 and paragraph 8 hereof, Buyer
agrees that Seller shall be Buyer's exclusive source for electron beam
x-ray or ionizing energy sterilization equipment, systems and Services. For
purposes of this Contract, the term "Services" shall mean and refer to those
services identified in paragraph 8 of this Contract.

     7.2 EXCEPTIONS TO EXCLUSIVE SUPPLIER PROVISIONS

     Buyer shall not purchase or otherwise obtain from anyone other than
Seller any electron beam and/or x-ray technology product pasteurization or
sterilization equipment, systems or Services including but not limited to
cobalt, cesium or any ionizing radiation products unless:

          a. Seller is (i) in material breach of any of the terms of this
Contract, or the Operating Agreement, which is being executed concurrently
with this Contract; and (ii) Seller fails to cure such breach within a
reasonable time of receipt of notice from Buyer.

          b. Seller becomes insolvent or seeks protection, voluntarily or
involuntarily, under the Bankruptcy Laws;

          c. Seller ceases business, or ceases planning, designing,
manufacturing, installing, operating, repairing or maintaining irradiation
equipment and systems;

          d. Buyer requires irradiation equipment and/or systems (a) of a
type, size, configuration, capacity, performance or power not manufactured or
sold by Seller and/or (b) within a reasonable time frame, Seller fails to
provide such equipment and/or systems.

     8. ADMINISTRATIVE, CUSTOMER SUPPORT AND OTHER SERVICES

     Upon the written request of Buyer, Seller shall provide to Buyer
administrative, accounting and other customer support functions and technical
services (hereinafter "Services") in connection with the

<PAGE>

operation of Buyer's business and the System.

     Any such Services that will be provided By Seller to Buyer at Seller's
cost are set forth in Exhibit C attached hereto.

     The Services set forth in Exhibit D are those Services that Buyer shall
obtain exclusively from Seller. Buyer shall not procure or arrange for such
Services from any supplier other than Buyer. Such Services set forth in
Exhibit D shall be provided by Seller to Buyer at Buyer's expense  at terms
and conditions to be set forth in a separate written agreement between the
parties. That separate agreement will set forth all details of such Services
including, without limitation, the type, cost and quantity of such Services.

     9. TERMINATION

     This Contract, and the parties' duties and obligations hereunder, may
terminated for cause by either party, upon the occurrence of one or more of
the following events:

          a. The other party becomes insolvent or seeks protection,
voluntarily or involuntarily, under the Bankruptcy Laws;

          b. The other party is in default of any material provision of this
Contract and such default has not been Promptly commenced and diligenctly
completed within a reasonable time after receipt of notice thereof;

          c. Buyer fails to make payment of any amount due to the Seller
pursuant to the terms hereof on the due date and such delinquency is not
cured within [...***...] days following receipt of written notice from Seller
to Buyer.

     10. INDEMNITY

          a. Buyer shall indemnify and hold Seller harmless and will, upon
request, defend Seller against all actions, proceedings, claims, demands,
suits, outlays, damages or expenses, including reasonable attorneys fees and
other costs that may be assessed against Seller, arising out of the acts or
omissions of Buyer, its representatives, agents or employees.

          b. Seller shall indemnify and hold Buyer harmless and will, upon
request, defend Buyer against all actions, proceedings, claims, demands,
suits, outlays, damages, or expenses, including reasonable attorneys fees and
other costs that may be assessed against Buyer arising out of the acts or

                   * Confidential Treatment Requested
<PAGE>

omissions of Seller, its representatives, agents or employees.

        c. IN NO EVENT SHALL EITHER PARTY BE LIABLE TO THE OTHER FOR ANY
INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES EVEN IF SUCH PARTY HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

    11. CONFIDENTIALITY

    The parties anticipate that both Buyer and Seller may learn confidential
and proprietary information of the other as a consequence of the transactions
contemplated by this Contract. The parties therefore agree, on behalf of
themselves, their agents, employees, parents, subsidiaries, officers,
directors, and all other persons acting on or for their behalf, to keep all
proprietary information confidential and to not disclose such information,
either directly or indirectly, to any third party, or to use any such
proprietary information for any purpose other than performance of this
Contract without the prior written authorization from an authorized
representative of the appropriate party. For purposes of this Contract, the
information described below shall not be deemed Confidential or Proprietary
Information:

          a. Information that either party knows about the other prior to
the execution of this Contract;

          b. Information that is publicly known, or becomes publicly known,
through no breach by either party to this Contract; and

          c. Information that is rightfully obtained by either party from any
third party who has no duty of confidentiality under this Contract.

    The parties mutually agree to take all necessary steps, and to prepare
and execute all documents necessary, to protect and prohibit the disclosure
of confidential information under this paragraph.

    12. ASSIGNMENT AND/OR DELEGATION

    Neither this Contract, nor any right, obligation or duty hereunder of
either party, may be assigned to, or assumed or performed by, any third party
without the prior written consent of the other party. Any purported
assignment or delegation made without compliance with the requirements of
this paragraph 13 shall be wholly void and ineffective for all purposes.

    13. INTEGRATION

    This Contract sets forth the entire agreement and understanding of the
parties with respect to

<PAGE>

transactions contemplated hereby and supercedes any and all prior contracts,
agreements and understandings of the parties relating to the subject matter
hereof. No representation, promise or statement of intention has been made by
any party to the other which is not embodied in this Contract.

    14. AMENDMENT/WAIVER

    This Contract may only be amended, modified, superceded or canceled, and
any of the terms, representations, warranties, covenants and conditions may
be waived, only by an instrument in writing executed by the parties, or in the
case of a waiver, by the party waiving compliance.

    15. FORCE MAJEURE

    If any party is unable to carry out its obligation under this Contract
because of force majeure, the parties agree to suspend performance until the
event creating the force majeure is over. For purpose of this Contract, force
majeure includes, but is not limited to, storms, floods, earthquakes, acts of
God, the acts of civil or military authority, quarantine restrictions, riots,
strikes, fires, lock-outs, labor disputes, commercial impossibility,
explosions and bombings, the inability to obtain permits or other
governmental approvals, or because of any other cause or causes beyond the
reasonable control of the party seeking to be excused from performance. The
party who is unable to perform because of a force majeure agrees to resume
performance of its obligations under this Contract upon the termination of
the event or events which excused performance.

    16. NOTICES

    All notices, requests, demands and other communications which are
required or permitted to be given under this Contract shall be in writing and
shall be deemed to have been duly given upon delivery if delivered
personally, or two (2) days after mailing by registered or certified mail,
return receipt requested, postage prepaid as follows:

          1. If to Buyer:     Zero Mountain Cold Storage
                              8425 Hwy 45 South
                              Fort Smith, AR 72906

          2. If to Seller:    Titan Scan Corp.
                              3033 Science Park Road
                              San Diego, California 92121

<PAGE>

or to such person or address as any party shall have specified by notice in
writing, to other parties hereto.

    17. INTERPRETATION

    This Contract shall be governed by and construed in accordance with the
laws of the State of California.

    18. SEVERABILITY

    The invalidity or unenforceability of any provision of this Contract
shall not affect the validity or enforceability of any other provision
contained herein.

    19. ARBITRATION

    Except as otherwise provided in the Agreement, any controversy between
the parties arising out of this Agreement shall be submitted to the American
Arbitration Association for arbitration in San Diego, California. The costs
of arbitration, including any American Arbitration Association administration
fee, the arbitrator's fee, and costs for use of facilities during the
hearings, shall be borne equally by the parties to the arbitration.
Attorney's fees may be awarded to the prevailing or most prevailing party at
the discretion of the arbitrator. The provisions of Sections 1282.6, 1283 and
1283.05 of the California Code of Civil Procedure apply to the arbitration.
The arbitrator shall not have any power to alter, amend, modify or change any
of the terms of this Agreement not to grant any remedy which is either
prohibited by the terms of this Agreement, or not available in a court of law.

    20. EXISTING DEBT OBLIGATION

    Since the buyer is currently under obligations to The Metropolitan Life
Insurance Company with regard to loan covenants, and operating ratios, should
this agreement in any way create a situation of default with buyers existing
debt then this agreement is null and void.

    21. JOINT VENTURES

    The buyer and seller agree to form a limited liability corporation which
will be the buyer of this system. This company will have the right of first
refusal to provide food pasteurization services to warehouses or
distributors of refrigerated food products.

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Contract as of
the effective date that is first set forth above.

                                       ZERO MOUNTAIN COLD STORAGE

                                       By: /s/ Mark Rumsey
                                          ----------------------------------
                                          Mark Rumsey, President and CEO

                                       TITAN SCAN CORP.

                                       By: /s/ Eric DeMarco
                                          ----------------------------------
                                          Eric DeMarco<PAGE>

                                                                   EXHIBIT 10.14

                                          Confidential Treatment Requested
                                          Under 17 C.F.R. Sections 200.80(B)(4),
                                          200.83 and 230.406

                             FIRST AMENDMENT TO THE

                                  JOINT VENTURE
                                       AND
                         STRATEGIC PARTNERING AGREEMENT

THIS FIRST AMENDMENT TO THE JOINT VENTURE AND STRATEGIC PARTNERING AGREEMENT
(the "AMENDMENT") is made and entered into as of this 18th day of August, 2000,
by and between

A.   TECH ION INDUSTRIAL BRAZIL S.A., a corporation organized and existing under
     the laws of Brazil, with a principal place of business at Av. Abiurana
     s/no, Industrial District, Manaus, 69075-010, Brazil ("TECH ION"); and

B.   SUREBEAM CORPORATION, a corporation organized and existing under the laws
     of the State of Delaware, United States of America ("USA") with a principal
     place of business at 3033 Science Park Road, San Diego, California, 92121,
     USA, or one of its subsidiaries ("SUREBEAM CORPORATION"); (hereinafter
     referred to collectively as the "PARTIES" and individually as a "PARTY"
     except where otherwise indicated), with the consent and joinder of

C.   JOSE FRANCISCO BUFARA DE MEDEIROS, Brazilian individual, bearer of the
     identity card no RG 01.736.772-3, resident at Rua Coronel Irlandino
     Sandoval no 200, Sao Paulo, Brazil; and

D.   JFBM PARTICIPACOES LTDA., a corporation organized and existing under the
     laws of Brazil, with a principal place of business at Av. Nove de Julho no
     5966, suit 12.

WHEREAS:

1. The Parties have entered into a Joint Venture and Strategic Partnering
Agreement on May 18, 2000 (the "AGREEMENT"), establishing several provisions
with respect to the formation of a joint venture between the Parties to exploit
and engage in the business of food and food products irradiation in Brazil;

2. The Parties have agreed to amend certain provisions of the Agreement, in
accordance with Section 12.14 thereof,

                                       1
<PAGE>

Now, therefore, in consideration of the premises and mutual covenants and
agreements contained herein, the Parties hereby agree to enter into this First
Amendment to the Agreement, pursuant to the clauses and conditions set forth
below.

CLAUSE ONE - AMENDMENTS

1.1   In accordance with Section 12.14 of the Agreement, the Parties hereby
agree to amend the Agreement as follows:

SECTION 1 - "TRADEMARK LICENSE AGREEMENT: The definition of "Trademark License
Agreement" shall read as follows:

         "TRADEMARK LICENSE AGREEMENT" MEANS THE AGREEMENT TO BE EXECUTED
         BETWEEN SUREBEAM CORPORATION AND/OR TECH ION, AS THE CASE MAY BE, AS
         LICENSOR(S), AND THE COMPANY, AS LICENSEE, IN FORM AND SUBSTANCE
         SATISFACTORY TO THE PARTIES."

Section 2.1(a):  Section 2.1(a) shall read as follows:

         "2.1(a) TITAN SUREBEAM AND SUREBEAM HOLDING COMPANY LTDA. A COMPANY
         HAVING THE NAME TITAN SUREBEAM BRAZIL, OR SUCH OTHER NAME AS DETERMINED
         BY SUREBEAM CORPORATION, WILL BE FORMED BY SUREBEAM CORPORATION, AT ITS
         OWN EXPENSE. TITAN SUREBEAM BRAZIL WILL BE INCORPORATED UNDER THE LAWS
         OF THE UNITED STATES. AFTER DULY FORMED AND REGISTERED, TITAN SUREBEAM
         BRAZIL WILL CAUSE THE FORMATION, AT ITS OWN EXPENSE, OF A COMPANY
         HAVING THE NAME A FULLY OWNED SUBSIDIARY NAMED SUREBEAM HOLDING COMPANY
         LTDA., SUCH COMPANY TO BE TITAN SUREBEAM BRAZIL AND SUREBEAM HOLDING
         COMPANY LTDA. SHALL SERVE AS SUREBEAM CORPORATION'S VEHICLES TO HOLD
         THE INTEREST IN THE JOINT VENTURE COMPANY SUREBEAM BRAZIL LTDA."

Section 2.6(c):  Section 2.6(c) shall read as follows:

         "2.6(c) SUREBEAM CORPORATION, THROUGH ITS SUBSIDIARY "SUREBEAM HOLDING
         COMPANY LTDA.", SHALL HAVE THE DISCRETIONARY RIGHT, EXERCISABLE AT ANY
         TIME WITHIN 20 YEARS AS OF THE CLOSING DATE, TO SUBSCRIBE FOR
         ADDITIONAL QUOTAS OF THE COMPANY'S CAPITAL IN ORDER TO CAUSE SUREBEAM
         HOLDING COMPANY LTDA. TO HOLD A MAXIMUM 50% EQUITY OWNERSHIP INTEREST
         IN THE COMPANY, BY PAYMENT OF US$1,000,000.00 (ONE MILLION DOLLARS) TO
         THE COMPANY, VIA CAPITAL INCREASE OR ANY OTHER SUITABLE ARRANGEMENTS TO
         BE AGREED BY THE PARTIES. TECH ION AGREES TO WAIVE ITS RIGHT OF
         FIRST REFUSAL TO PARTICIPATE IN SUCH CAPITAL INCREASE AND TO SIGN ANY
         DOCUMENT REQUIRED BY LAW AND BY THE OTHER PARTY TO EFFECT THE CAPITAL
         INCREASE."

                                       2
<PAGE>

SECTION 3.2. The new date for the conclusion of the Post Closing Obligations set
forth in Section 3.2 of the Agreement shall be December 20, 2000.

         "3.2 CLOSING DATE. THE CLOSING DATE IS THE DATE MENTIONED IN THE
         PREAMBLE OF THIS AGREEMENT. IN THE EVENT THAT THE POST CLOSING
         OBLIGATIONS LISTED IN SECTION 3.3 ARE NOT COMPLIED WITH ON OR BEFORE
         DECEMBER 20, 2000, THROUGH THE FAULT OF NEITHER PARTY, THIS AGREEMENT
         SHALL AUTOMATICALLY TERMINATE UNLESS THE PARTIES OTHERWISE AGREE IN
         WRITING, AND, UPON SUCH TERMINATION, THE PARTIES SHALL HAVE NO FURTHER
         OBLIGATIONS HEREUNDER."

SECTION 6.1:  Section 6.1 shall read as follows:

         "6.1. PURCHASE AGREEMENT. TECH ION WILL PURCHASE ELECTRON BEAM AND
         X-RAY SYSTEMS, EQUIPMENT AND SERVICES EXCLUSIVELY FROM TITAN
         SUREBEAM BRAZIL IN ACCORDANCE WITH THE TERMS AND CONDITIONS OF THE
         EQUIPMENT PURCHASE AGREEMENT TO BE ENTERED INTO BY THE PARTIES. THE
         PRICES OF SUCH SYSTEMS, EQUIPMENT AND SERVICES WILL BE AT PRICES NOT
         EXCEEDING THE MARKET VALUE OF SUCH SYSTEMS, EQUIPMENT AND SERVICES, AND
         AS SET FORTH IN THE EQUIPMENT PURCHASE AGREEMENT. THE MARKET VALUE WILL
         BE EQUAL TO THE PRICE OF SUBSTANTIALLY SIMILAR SYSTEMS, EQUIPMENT AND
         SERVICES, UNDER SUBSTANTIALLY SIMILAR TERMS AND CONDITIONS, THAT COULD
         BE OBTAINED ON THE OPEN MARKET. THE MARKET VALUE WILL BE REVIEWED
         ANNUALLY BY THE BOARD OF DIRECTORS AND WILL BE COMPARED TO, AMONG OTHER
         THINGS, WRITTEN PROPOSALS CONTAINING SUBSTANTIALLY SIMILAR SCOPE OF
         WORK UNDER SUBSTANTIALLY SIMILAR TERMS AND CONDITIONS. ADDITIONALLY,
         THE TECH ION WILL BE THE SOLE AND EXCLUSIVE PROVIDER OF ELECTRON BEAM
         AND X-RAY SYSTEMS, EQUIPMENT AND SERVICES TO TECH ION DURING THE TERM
         OF THIS AGREEMENT, AS LONG AS THE PRICES CHARGED BY TITAN SUREBEAM
         BRAZIL ARE WITHIN THE MARKET VALUE."

CLAUSE TWO - REPRESENTATION AND WARRANTIES

2.1      Each Party represents and warrants that (a) the execution of this
         Amendment by it has been duly authorized by all necessary and
         appropriate corporate or governmental action, (b) the execution of this
         Amendment and the performance of its obligations hereunder will not
         conflict with, or result in a breach of or default under, any agreement
         or instrument material to it, to which it is a party or by which it is
         bound, or any order, decree or judgment of any court or governmental
         agency or body, and (c) this Amendment together with the Agreement
         constitute the valid and legally binding obligation of such Party,
         enforceable in accordance with its terms, except as such enforceability
         may be affected by principles of bankruptcy, reorganization or other
         similar laws of general applicability.

CLAUSE THREE - GENERAL PROVISIONS

3.1      If any provision of this Amendment shall be determined by any court of
         competent jurisdiction to be invalid or unenforceable, the remainder of
         this Amendment or of the

                                       3
<PAGE>

         Agreement other than that portion determined to be invalid or
         unenforceable shall not be affected thereby, and each valid provision
         hereof shall be enforced to the fullest extent permitted by law.

3.2      This Amendment, together with the Agreement constitute the entire
         agreement between the parties, and supersedes all prior agreements or
         understandings between them with respect to the matters referred to
         herein.

3.3      The Parties hereby confirm and ratify all terms and conditions of the
         Agreement that were not subject to amendments pursuant to Clause one
         Herein, which terms and conditions shall remain in full force and
         effect, including the Post Closing Obligations.

3.4      This Amendment shall not be governed by, and construed in accordance
         with, the laws of Brazil.

IN WITNESS WHEREOF, the Parties have duly executed and delivered this as an
instrument as of this 18th day of August, 2000 in three (3) copies of equal form
substance, with the undersigned witnesses.

TECH ION INDUSTRIAL BRASIL S.A.                    SUREBEAM CORPORATION

By: /s/ JOSE FRANCISCO BUFARA DE MEDEIROS   By: /s/ LARRY A. OBERKFELL
   --------------------------------------      ---------------------------------
Name: Jose Francisco Bufara de Medeiros     Name: Larry A. Oberkfell
                                                 -------------------------------
Title:  Chairman                            Title: President & CEO
                                                  ------------------------------
JFBM PARTICIPACOES LTDA.
By: /s/ JOSE FRANCISCO BUFARA DE MEDEIROS  /s/ JOSE FRANCISCO BUFARA DE MEDEIROS
   --------------------------------------  -------------------------------------
Name: Jose Francisco Bufara de Medeiros    JOSE FRANCISCO BUFARA DE
Title:  President                          MEDEIROS

WITNESSES:

1. :   /s/   ILLEGIBLE                     2. /s/ KEVIN K. CLAUDIO
    -------------------------------------    -----------------------------------
Name:     ILLEGIBLE                        Name: Kevin K. Caludio
ID:  10915403-0, IFP                       ID: VP & CFO

                                       4
<PAGE>

                                  JOINT VENTURE
                                       AND
                         STRATEGIC PARTNERING AGREEMENT

THIS JOINT VENTURE AND STRATEGIC PARTNERING AGREEMENT (the "AGREEMENT") is
made and entered into as of this 18th day of May, 2000, by and between
TECHION INDUSTRIAL BRAZIL S.A., a corporation organized and existing under
the laws of Brazil, with a principal place of business at Av. Abiurana
s/north, Industrial District, Manaus, 69075-010, Brazil, (hereinafter
referred to as "TECH ION"), and SUREBEAM CORPORATION, a corporation organized
and existing under the laws of the State of Delaware, United States of
America ("USA") with a principal place of business at 3033 Science Park Road,
San Diego, California, 92121, USA, or one of its subsidiaries (hereinafter
referred to as "SUREBEAM CORPORATION"), (hereinafter referred to collectively
as the "PARTIES" and individually as a "PARTY" except where otherwise
indicated), with the consent and joinder of JOSE FRANCISCO BUFARA DE
MEDEIROS, Brazilian individual, bearer of the identity card north RG
01.736.772-3, resident at Rua Coronel Irlandino Sandoval north 200, Sao
Paulo, Brazil (hereinafter referred to as "MEDEIROS"); and JFBM PARTICIPACOES
LTDA., a corporation organized and existing under the laws of Brazil, with a
principal place of business at Av. Nove de Julho north 5966, suit 12, Brazil
(hereinafter referred to as "JFBM"). (Medeiros and JFBM hereinafter referred
to collectively as "TECH ION'S SHAREHOLDERS").

                                   WITNESSETH

WHEREAS, Surebeam Corporation, a company engaged in designing, manufacturing,
selling, installing, operating and servicing product disinfestation,
pasteurization and sterilization equipment and systems, including its patented
electron beam and x-ray equipment and systems, wishes to establish a wholly
owned subsidiary, Titan Surebeam Brazil, or some similar named organization
(hereinafter "TITAN SUREBEAM BRAZIL"); and

WHEREAS, Tech Ion is engaged in the business of buying and selling of food and
food products in Brazil; and

                                       5
<PAGE>

WHEREAS, Surebeam Corporation, through its subsidiary Titan Surebeam Brazil, and
Tech Ion wish to jointly establish Surebeam Brazil (hereinafter the "COMPANY"),
a company organized under the laws of the country of Brazil, with the desire to
jointly engage in the business of providing food and food product irradiation
and pasteurization services and industrial irradiation equipment to various food
companies in Brazil, including food producers and food wholesalers using
Surebeam Corporation's patented electron beam and x-ray technology; and

WHEREAS, the Parties intend for the Company to be the exclusive means by which
Tech Ion or any of its Affiliates obtains electron beam and x-ray systems,
equipment and services; and

WHEREAS, the Parties desire to set forth their mutual understandings regarding
the relations among them, and their respective rights and obligations, with
respect to the Company.

NOW THEREFORE, in consideration of the premises and mutual covenants and
agreements contained herein, and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Parties agree as
follows.

1.  DEFINITIONS.

DEFINED TERMS. In this Agreement, the following words and expressions shall have
the meanings as follows:

"AFFILIATE" means any firm, company or corporation of which a party with respect
to which the term is used directly or indirectly controls, is controlled by or
is under common control with, such Party. As used in the preceding sentence,
"control means the right to exercise, directly or indirectly, more than fifty
percent (50%) of the voting rights attributable to the shares of the controlled
entity, or possessing, directly or indirectly, the power to direct or cause the
direction of the management or policies of the controlled entity, including
without limitation, the power to appoint its managing director.

This "AGREEMENT" means this agreement including all annexes, exhibits and
attachments.

The "BOARD" means the Board of Directors of the Company.

The "BUSINESS PLAN" means the business plan for each of the Company's fiscal
years; the Business Plan for the first fiscal year to be mutually agreed in
writing by the Parties prior to the Closing.

"DIRECTOR" means a director of the Company.

"EQUIPMENT PURCHASE AGREEMENT" means the agreement to be executed between Titan
Surebeam Brazil and the Company in form and substance satisfactory to the
Parties.

                                       6
<PAGE>

"EQUITY QUOTAS" means the quotas of the Company outstanding from time to time,
having a par value per quota as specified in the Company's Articles of
Organization.

"NET ASSET VALUE" means the sum of the Company's consolidated capital, paid-in
surplus and retained earnings (deficit) accounts as determined in accordance
with generally accepted accounting principles in Brazil.

"PERSON" as used herein includes any person, firm or company or group of persons
or unincorporated body.

A "QUOTAHOLDER" means any beneficial holder of the Equity Quotas of the Company.

The "TERRITORY" means the country of Brazil.

"TRADEMARK LICENSE AGREEMENT" means the agreement to be executed between
Surebeam Corporation, as licensor, and the Company, as licensee, in form and
substance satisfactory to the parties.

2.   THE COMPANY.

2.1  FORMATION.

     (a)  TITAN SUREBEAM AND SUREBEAM HOLDING COMPANY LTDA. A company having
          the name Titan Surebeam Brazil, or such other name as determined by
          Surebeam Corporation, will be formed by Surebeam Corporation, at its
          own expense. Titan Surebeam Brazil will be incorporated under the laws
          of the United States prior to the Closing and will be the controller
          of Surebeam Holding Company Ltda., which shall have head offices in
          Brazil and be formed under Brazilian laws prior to the Closing Date.

     (b)  SUREBEAM BRAZIL. The joint venture company having the name Surebeam
          Brazil Ltda., or such other name as the Parties mutually agree, will
          be incorporated under the laws of Brazil as soon as possible after the
          Closing, and will assume the corporate form of a limited liability
          quota company ("SOCIEDADE POR QUOTAS DE RESPONSABILIDADE LIMITADA").
          Subject to the Surebeam Corporation's prior review and written
          approval, Tech Ton will arrange for the Company to adopt the Articles
          of Organization in the form and substance satisfactory to the Parties.
          The provisions of the Articles of Organization shall be interpreted
          and applied, to the maximum possible extent in a manner consistent
          with and subject to the provisions hereof.

2.2  BUSINESS PURPOSE. The business and scope of activities of the Company shall
include the following

                                       7
<PAGE>

     (a)  To provide food and food product irradiation and pasteurization
          services and equipment, and industrial irradiation equipment, to
          various food companies in Brazil, including Tech Ion and other food
          producers and food wholesalers using Surebeam Corporation's patented
          electron beam and x-ray technology; and

     (b)  To provide other irradiation services and equipment in the Territory,
          as the Board shall determine from time to time.

2.3  AUTHORIZATION. The Key Officers of the Company shall have the authority to
apply for and obtain any and all governmental authorizations, registrations,
permits or approvals necessary or desirable for the proper conduct of the
foregoing activities and to lease or purchase any real or personal property,
equipment, supplies or services and take any other lawful actions which may be
necessary incidental or convenient to the conduct of its business as
contemplated herein.

2.4  REGISTERED OFFICE. The registered office of the Company shall be such
address in Brazil as the Parties shall determine from time to time.

2.5  FISCAL YEAR. The fiscal year of the Company shall be the annual period
commencing January 1 of each year, or such other annual period as the Parties
shall determine from time to time.

2.6  CAPITALIZATION.

     (a)  The Company shall have an initial capital stock to be agreed by the
          Parties. Titan Surebeam Brazil hereby agrees to subscribe for a number
          of quotas of the Equity Quotas that will cause Titan Surebeam Brazil
          to have a 19.9% interest in the Company, and Tech Ion hereby agrees to
          subscribe for a number of quotas of the Equity Quotas that will cause
          Tech Ion to have an 80.1% interest in the Company. Prior to the start
          of the Company's operations, the Parties will approve a capital
          increase of the Company in an amount to be mutually agreed and fully
          subscribed by the Parties pursuant to their respective equity interest
          in the Company.

     (b)  Any further increases of the Company's capital will depend on mutual
          approval by the Parties and shall be subscribed and paid in by them
          pursuant to their respective equity interest in the Company. The
          Parties shall neither unreasonably withhold their approval for any
          capital increase nor withhold their approval to the detriment of the
          Company's business. If the approval is unreasonably withheld, then,
          the Party denying its approval agrees to waive its right of first
          refusal to participate in such capital increase and to sign any
          document required by law and by the other Party to effect such capital
          increase. In case the approval is withheld to the detriment of the
          Company's business, then the Party withholding its approval shall
          either agrees to waive its right of first refusal to participate in
          such capital increase and to sign any document required by law and by
          the other Party to effect such capital increase or shall liquidate its
          investment in the Company in a

                                       8
<PAGE>

          form to be opportunely agreed by the Parties.

     (c)  Titan Surebeam Brazil shall have the discretionary right, through its
          subsidiary to be formed and called Surebeam Holding Company Ltda.,
          exercisable at any time within 20 years as of the Closing Date, to
          subscribe for additional quotas of the Company's capital in order for
          Surebeam Holding Company Ltda. to have a 50% equity ownership interest
          in the Company, by payment of US$1,000,000.00 (one million dollars).
          Tech Ion agrees to waive its right of first refusal to participate
          in such capital increase and to sign any document required by law and
          by the other Party to effect the capital increase.

2.7  WORKING CAPITAL LINE OF CREDIT.

     (a)  Surebeam Corporation or another Affiliate of The Titan Corporation,
          will provide a working capital line of credit to Tech Ion of up to
          five million dollars ($5,000,000.00), with an interest rate of
          ten percent (10%) per year. This line of credit will be 100% fully
          secured by the stock and assets of Tech Ion until fully funded and
          transferred by Tech Ion to the Company, PROVIDED that such transfer
          is (i) duly evidenced by Tech Ion; and (ii) not made as an equity
          contribution in exchange for Equity Quotas. Provided that these
          conditions are complied with, the line of credit will be 100% fully
          secured by the stock and assets of the Company in accordance with the
          terms of separate Pledge Agreements to be entered into by the
          appropriate parties.

     (b)  The line of credit will be used to further the coordinated business
          activities of Tech Ion and the Company with respect to the Joint
          Venture. Titan SureBeam Brazil will review all requests for funds made
          by Tech Ion and the Company to determine, in its reasonable
          discretion, whether or not such requests are for valid business
          purposes with respect to the Joint Venture.

2.8   BUSINESS PLAN. The Company shall conduct its operations in accordance with
an annual plan (the "BUSINESS PLAN") which will be prepared by the President and
presented to the Board at least thirty (30) days prior to the beginning of each
of the Company's fiscal years. The Business Plan for the first fiscal year shall
include a capital budget detailing the capital expenditures necessary to enable
the Company to implement operations, and any other proposed capital
expenditures, and an operating budget, including a projected cash flow statement
for the period to which the budget relates. The Business Plan sets forth the
initial capitalization of the Company required to fund the capital budget and
any projected shortfalls in the operating budget. Each subsequent Business Plan
shall be consistent with the Company's then current strategic plan and shall
include a capital and operating budget for the relevant fiscal year and specify
any dividend or other quotaholder distributions, and shall be implemented
following unanimous ratification and approval by the Board of Directors. Absent
such unanimous ratification and approval by the Board, the Business Plan shall
be subject to the approval of a majority of the Quotaholders.

                                       9
<PAGE>

3.   REPRESENTATIONS.

3.1  The Parties represent and warrant that each of the following conditions
have been satisfied prior to the Closing;

     (a)  No government or governmental, or state agency or regulatory body
          have:

          (i)  instituted or commenced or threatened any action, suit or
               investigation to restrain, prohibit or otherwise challenge the
               transactions to be effected hereby or contemplated herein or

         (ii)  threatened to take any legal action as a result or in
               anticipation of the implementation of this Agreement, or

        (iii)  proposed or enacted any statute, order or regulation which would
               prohibit, materially restrict or materially delay implementation
               of this Agreement.

     (b)  There are no liens, pledges, or outstanding interests on The Parties
          that might adversely effect the transactions contemplated in this
          Agreement.

3.2  CLOSING DATE. The Closing Date is the date mentioned in the preamble of
this agreement. In the event that the post closing obligations listed in Section
3.3. are not complied with on or before November 20, 2000, through the fault of
neither Party, this Agreement shall automatically terminate unless the Parties
otherwise agree in writing, and, upon such termination, the Parties shall have
no further obligations hereunder.

3.3  POST CLOSING OBLIGATIONS.

     (a)  All approvals, consents, licenses and registrations from or with any
          agency or regulatory authority of the Government of Brazil, necessary
          to start the operations of the Company, shall be obtained.

     (b)  Suitable arrangements have been made for (i) procuring or providing
          mutually agreed sites for locating the Company's facilities as well as
          all necessary rights of way or easements, (ii) full access to the site
          for Titan Surebeam Brazil and its contractors, (iii) all necessary
          permits, licenses and approvals for the importation and installation
          of the required equipment facilities in Brazil, and (vi) all approvals
          for expatriate personnel necessary to install or operate the
          equipment.

     (c)  An amendment to the Company's Articles of Organization will be
          executed by the Parties setting forth: (i) a capital increase of the
          Company to be fully subscribed by the Parties in accordance with the
          provisions of Section 2.6 (a) hereof; (ii) the members of the
          Company's Board of Directors appointed in accordance with the

                                       10
<PAGE>

          provisions of Section 4.2 (a) hereof; (iii) the Key Officers of the
          Company appointed in accordance with the provisions of Section 4.4
          hereof.

     (d)  Tech Ion and Titan Surebeam Brazil will each make its equity
          contribution in accordance with this Agreement.

     (e)  The Parties will enter into the Trademark Licensing Agreement, Stock
          Option Agreement, Pledge Agreements and other ancillary agreements
          that the Parties deem appropriate.

4.   MANAGEMENT OF THE COMPANY.

4.1  MANAGEMENT AUTHORITY. Subject to the terms of this Agreement, the Company
shall be managed by the Board of Directors and by the Key Officers, as provided
herein.

4.2  THE BOARD OF DIRECTORS.

     (a)  The Board of Directors will consist initially of four (4) Directors,
          each of which has equal voting rights regardless of the Parties'
          respective equity ownership interests in the Company, and one of the
          two Directors indicated by Tech Ion shall be appointed as chairman
          of the Board. Titan SureBeam Brazil shall be entitled to appoint
          two (2) Directors, and Tech Ion shall be entitled to appoint two (2)
          Directors. Each Party shall be entitled, but not required, to
          designate an alternate Director for each Director it designates.
          Each Party shall have the right to replace the Director designated
          by such Party, upon the giving of written notice to the other Party
          and to the Company, at which time the Parties shall execute an
          amendment to the Company's Articles of Organization to provide for
          the withdrawal of such Director and the appointment of a new member
          for the Board. Any vacancy shall be filled by the nominees of the
          Party which designated the Director whose unavailability caused such
          vacancy. Alternate Directors designated by any Party may serve in
          the place of the Director designated by such Party if such Director is
          absent from or unable to attend a Board meeting.

     (b)  In the event of a tie vote upon an issue submitted to the Board of
          Directors for approval, the Chairman, or his designee, shall meet in
          person with the CEO of Titan SureBeam Brazil, or his designee, and
          attempt to resolve the tie. If the tie is not resolved within thirty
          (30) days of the meeting, them the matter will be submitted to
          arbitration in accordance with Section 12.7 hereof.

     (c)  The Parties shall cause the directors appointed by them to elect as
          the Chairman of the Board Mr. Jose Francisco Bufara de Medeiros.

     (d)  Regular meetings of the Board of Directors shall be held on regular
          dates fixed in advance at least once per calendar quarter. Notice for
          each meeting shall be given in accordance with the Articles of
          Organization and the law.

                                       11
<PAGE>

     (e)  No action shall be taken by the Board of Directors in the absence of a
          quorum, which shall consist of not less than one director appointed by
          Titan SureBeam Brazil and one director appointed by Tech Ion. Each
          Director shall have one (1) vote. Except as otherwise expressly
          provided in this Agreement, or in the Articles of Organization, all
          actions and decisions of the Board of Directors shall require the
          affirmative vote of a majority of the Directors (or alternate
          Directors) present at a meeting of the Board of Directors duly
          called and held in accordance with this Section 4.2. In the event
          a member of the Board of Directors cannot be present at a meeting,
          such Director's alternate may attend in such Director's place and
          such alternate shall so notify the Secretary of the Company at or
          prior to the meeting. The Company shall bear the cost and expense
          of the attendance of Directors at Board meetings. The Board may
          also take action by written consent as may be permitted by governing
          law. The Directors may participate in a Board of Directors meeting
          by means of video conference call or telephone conference call by
          means of which all Directors participating in the meeting can hear
          each other and such participation will constitute presence in person
          at such meeting.

4.3   ACTIONS REQUIRING SPECIAL APPROVAL.

     (a)  Actions of the Key Officers involving any of the matters enumerated
          below shall be previously approved upon or pursuant to a majority vote
          of the Directors (or alternate Directors) present at a meeting of the
          Board of Directors duly called and held:

          (i)  the sale, mortgage, charge, lien, pledge or encumbrance of any of
               the Company's assets unless such assets are sold or financed in
               the ordinary course of business or the sale is made in connection
               with the replacement of any assets sold;

         (ii)  the acquisition or formation of any subsidiary company or joint
               venture or the making of any investments in any other company or
               in any business other than in the food or food product
               irradiation business;

        (iii)  the incurrence of any indebtedness or financial guarantees on
               behalf of the Company which is greater than the equivalent in
               Brazilian currency to US$100,000.00 (one hundred thousand US
               Dollars);

         (iv)  the execution of any contract by or on behalf of the Company for
               any purchases which are outside of the ordinary course of the
               Company's business, irrespective of the amount involved;

          (v)  the voluntary discontinuance of a material business activity of
               the Company or termination of the Company's business;

         (vi)  any lending by the Company, other than deposits with a banking or
               financial institution;

                                       12
<PAGE>

     (b)  Actions involving any of the matters enumerated below shall be
          previously approved upon or pursuant to a unanimous vote of the
          Quotaholders present at a Quotaholders' meeting duly called and held:

          (i)  the voluntary winding up or liquidation of the Company except as
               may be provided for by specific provisions of this Agreement;

         (ii)  increasing or reducing the number of Directors of the Company or
               any partially or wholly owned subsidiaries of the Company;

        (iii)  any changes to Quotaholders' contribution of debt or equity
               capital or Quotaholders' debt guarantees, surety or indemnity,
               and approval of any increases the Quotaholders' funding of the
               Company (including equity contributions, Quotaholder loans,
               Quotaholder debt guarantees, sureties or indemnities);

         (iv)  any amendment of the Company's Articles of Organization; the
               registration of any Equity Quotas transfers acquired by any
               transfer of Equity Quotas from one Quotaholder to another
               Quotaholder or to a third party, except for transfers of Equity
               Quotas made pursuant to Section 8 hereof.

4.4  KEY OFFICERS. The Key Officers of the Company shall be the President, Chief
Operating Officer, Chief Financial Officer and an officer without specific
designation. The Parties agree to cause the directors they indicated to appoint
as the President of the Company any such person the Chairman may designate,
subject to the prior written approval of Surebeam Corporation, which approval
shall not be unreasonably withheld. The Parties agree to cause the directors
they indicated to appoint as the Chief Financial Officer any such person Tech
Ion may designate, subject to the prior written approval of Surebeam
Corporation, which approval shall not be unreasonably withheld. The Key Officers
shall be confirmed by a majority vote of the Board of Directors.

     (a)  Each and every act and document involving any liability or obligation
          to the Company, such as deeds of any nature whatsoever, checks,
          promissory notes, bills of exchange, money orders, debt instruments,
          in general, in addition to any agreement, including loan agreements,
          and any other documents unspecified herein, shall be JOINTLY signed
          by:

          (i)  two Key Officers, one indicated by Techion and one indicated
               by Titan; or

         (ii)  one Key Officer and one attorney-in-fact vested with specific
               powers, one indicated by Techion and one indicated by
               Titan; or

                                       13
<PAGE>

        (iii)  two (2) attorneys-in-fact vested with specific powers, one
               indicated by Techion and one indicated by Titan.

4.5   PRESIDENT. The President shall have such authority as shall be granted to
him under the terms of this Agreement or as may from time to time be delegated
by him by the Board of Directors. The President shall be an employee of the
Company. Without limiting generality of the foregoing, the President shall have
the power to, jointly with another Key Officer:

     (a)  hire and discharge employees of the Company on behalf of the Company,
          and generally determine the terms and conditions of their employment,
          but subject to all applicable laws and regulations, and subject to the
          labor and employment policies set by the Board of Directors;

     (b)  determine the prices and terms at which the goods and services of the
          Company shall be marketed and provided, subject to any specific
          directions of the Board of Directors;

     (c)  purchase goods and services required to be purchased by the Company,
          and determine the terms of such purchase, subject to any specific
          directions of the Board of Directors;

     (d)  conclude contracts and agreements in the Company's name and ensure
          their fulfillment; and all other material contracts shall require the
          approval of the Board of Directors;

     (e)  represent the Company on its relations with organizations, firms and
          institutions including governmental authorities, subject to and
          consistent with the policies of the Board of Directors;

     (f)  enter into loan agreements and generally attend to the financial
          matters of the corporation, subject to any restrictions imposed by the
          Board;

     (g)  promote and publicize the Company's products and services consistent
          with the policies of the Board of Directors;

     (h)  account for the Company's operations in accordance with this Agreement
          and any requirements imposed by the Board of Directors; and

     (i)  prepare the Company's strategic business plan in consultation with the
          Board of Directors which shall set forth the mission, objectives and
          direction of the Company.

4.6  VACANCIES. When a vacancy occurs in any of the executive offices including,
without limitation, in the office of the President, whether by death,
resignation, expiration of term

                                       14
<PAGE>

or otherwise, it shall be filled in the manner set forth in the appropriate
Section above.

4.7   REMOVAL OF OFFICERS AND AGENTS. In the case of any officer or agent of
the Company nominated or appointed by either Techion or Titan SureBeam
Brazil, either such entity shall be empowered to remove such officer or agent
at its sole discretion following consultation with the Board of Directors.
The Parties shall remove the other officers or agents immediately upon
determination of the Board of Directors whenever the best interests of the
Company will be served by the removal. The removal shall be without prejudice
to the contract rights, if any, of the person so removed.

4.8   VOTING AGREEMENT. Tech Ion and Titan SureBeam Brazil will exercise all
voting rights and powers available to it in relation to the Company as well
as procure the Directors nominated by it on the Board of Directors to act in
such manner as to give full effect to the terms of this Agreement.

5.    ACCOUNTS, REPORTS AND RIGHT OF INSPECTION.

5.1   BOOKS, RECORDS AND REPORTS.

     (a)  Arthur Andersen, LLP (hereinafter the "AUDITORS") will be the
          independent audit firm for the Company and for Tech Ion.

     (b)  The Company shall maintain proper books and accounts on an accrual
          basis in accordance with the provisions of this Agreement. All
          financial reports referred to below shall be prepared in accordance
          with Brazil's generally accepted accounting principles applied on a
          consistent basis ("GAAP") and shall also be presented in accordance
          with, or reconciled to, United States GAAP. Annually, upon the close
          of the Fiscal Year (or as otherwise approved by the Board of
          Directors), all such books and accounts of the Company and Tech Ion
          shall be audited by the Auditors. Additionally, both Tech Ion and the
          Company will be subject to quarterly reviews by the Auditors as set
          forth below.

     (c)  Each Party shall be furnished with the following:

          (i)  within thirty (30) days after the end of each calendar month, a
               monthly income and cash flow statement from the Company;

         (ii)  within forty-five (45) days after the end of each of the first
               three quarters of each Fiscal Year, balance sheets of the Company
               as of the end of such quarter and a statement of changes in
               financial position of the Company for such quarter and for the
               year to date, in each case prepared in accordance with Brazil and
               U.S. GAAP and setting forth each case in comparative form the
               figures as at the end of and for the previous Fiscal

                                       15

<PAGE>

               Year and such other financial information as may be reasonably
               requested by the Board of Directors;

        (iii)  within 120 days after the end of each Fiscal year, audited
               financial statements prepared in accordance with Brazil and
               U.S. GAAP, including a balance sheet of the Company as at
               the end of such year, a statement of income and earnings and
               a statement of changes in financial position for the Company
               for such year, and setting forth in each case in comparative
               form the figures as at the end of and for the previous
               Fiscal Year, together with all necessary notes and the
               report of the accountants on such financial statements; and

         (iv)  at such times as the Board of Directors shall designate, such
               other reports as may be requested by the Board of Directors.

5.2  RIGHT OF INSPECTION. Each Party, through its duly authorized
representatives, shall have the right, at its own expense, to examine and
inspect, at any reasonable time and for any purpose, any of the books, records
and accounts of the Company.

6.   OTHER COVENANTS.

6.1  PURCHASE AGREEMENT. The Company will purchase electron beam and x-ray
systems, equipment and services exclusively from SureBeam Corporation in
accordance with the terms and conditions of the Equipment Purchase Agreement
to be entered into by the parties. The prices of such systems, equipment and
services will be at prices not exceeding the market value of such systems,
equipment and services, and as set forth in the Equipment Purchase Agreement.
The market value will be equal to the price of substantially similar systems,
equipment and services, under substantially similar terms and conditions,
that could be obtained on the open market. The market value will be reviewed
annually by the Board of Directors and will be compared to, among other
things, written proposals containing substantially similar scope of work
under substantially similar terms and conditions. Additionally, the Company
will be the sole and exclusive provider of electron beam and x-ray systems,
equipment and services to Tech Ion during the term of this Agreement, as long
as the prices charged by SureBeam Corporation are within the market value.

     (a)  SECURITY. All electron beam and x-ray systems and equipment sold by
          Titan Surebeam Brazil to the Company may be fully secured, as to 100%
          of its value, by any or all of the following, at Titan SureBeam's
          discretion:

          (i)  the systems, services and equipment being purchased;

         (ii)  the capital stock of the Company; and

        (iii)  the capital stock of Tech Ion.

     (b)  Financing.

                                       16

<PAGE>

          (i)  Titan SureBeam Brazil may elect, in its sole discretion, to
               obtain financing for the equipment, systems and services sold
               to the Company. If Titan SureBeam Brazil makes this election,
               and such financing is obtained, the payment of [...***...] of
               profit or fixed payment, as described in 6.1(b)(ii) below, will
               not be in effect and the Company will service such debt. Tech
               Ion and the Company will assist Titan Surebeam Brazil in
               obtaining such financing.

         (ii)  If Titan SureBeam Brazil elects, in its sole discretion, not to
               obtain financing for the equipment, systems and services sold
               to the Company, then the Company will make fixed monthly payments
               to Titan SureBeam Brazil for the purchase price based on a
               [...***...] amortization with a [...***...] interest rate, until
               all the electron beam or x-ray systems, services and equipment
               provided by Titan SureBeam Brazil to the Company, including any
               financing costs, have been paid in full. Once Titan SureBeam
               Brazil is paid in full for such equipment, systems and services,
               Titan Surebeam Brazil or Surebeam Holding Company Ltda. will be
               entitled to receive 19.9% and Tech Ion the other 80.1% of the
               Company's net, after-tax profit. Besides this distribution,
               Titan Surebeam Brazil or Surebeam Holding Company Ltda. shall
               enter into a Technology License Agreement whereby one or the
               other will receive a royalty payment equal to 19.9% of the net
               profits.

6.2   COOPERATION. The Company and Tech Ion will work together to obtain for the
Company long term agreements from food companies, food producers, food
wholesalers and other potential customers in the food industry in Brazil for the
provision of food and food products irradiation services, systems and equipment.
Tech Ion will assist the Company in locating and obtaining facilities in Brazil
for the performance of such agreements and for the conduct of the Company's
business in general. Additionally, Tech Ion agrees to be a significant and
primary customer of the Company and agrees to enter into long term "take or pay"
type service contracts with the Company for the irradiation of food and food
products at market rates or competitive pricing.

6.3   COBALT SYSTEMS. Should the Company need to specifically purchase cobalt
systems and services for a specific application, the Parties agree that it
will purchase or otherwise acquire such cobalt systems and services from Tech
Ion. The prices for such cobalt systems or services will be at a price no
greater than the market value of such cobalt systems and services. The market
value will be reviewed annually by the Board of Directors and will be
compared to, among other things, written proposals containing substantially
similar scope of work under substantially similar terms and conditions.

6.4   RIGHT OF FIRST REFUSAL. Should Titan SureBeam Brazil, Tech Ion and the
Company jointly determine that electron beam and/or x-ray systems, equipment
and services are not the preferred source of irradiation for a particular
application, then Titan SureBeam Brazil and the Company shall have a right of
first refusal to collectively provide the non-

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                     * Confidential Treatment Requested

<PAGE>

electron beam or electron beam system, equipment or services, which can come
either from Brazil or from abroad. If Titan SureBeam Brazil and the Company
elect not to provide the non-electron/x-ray beam system, equipment or
services, then Tech Ion may obtain such non-electron/x-ray beam system,
equipment or services from a third party source or provide the system,
equipment, or services itself.

6.5  TRADEMARKS. The Parties agree that trademarks, service marks, trade names,
logos, insignia and symbols (hereinafter collectively referred to as "INSIGNIA")
of any Party or any of its Affiliates will not be used by any other Party or the
Company in any way or manner without the prior written approval of the Party
owning such Insignia. Such approval shall be limited to the particular instance
giving rise to the need for such approval and shall not be construed as an
ongoing license or approval to use such Insignia in any other instances unless
otherwise agreed to by both parties in writing. The Parties will submit to the
owner of such Insignia all sales promotions, press releases and other publicity
matters furnished by them in connection with this Agreement in which any of the
Insignia is mentioned or language from which the connection of such Insignia may
be inferred or implied.

The Company will enter into Trademark License Agreements with both Surebeam
Corporation and Tech Ion pursuant to which the Company shall use the Surebeam
Corporation and Tech Ion Insignias, respectively, either alone or in co-branding
the Company's services, and in marketing and promoting the sale of such
services, subject to marketing considerations.

6.6  TECHNOLOGY DEVELOPMENT/PATENTS. If any technology development is
required by the Company during the term of this Agreement, Titan SureBeam
Brazil will be given a right of first refusal to provide such technology
development on reasonable market terms. If for any reason Titan SureBeam
elects not to provide such technology development to the Company, then Tech
Ion shall have the right to provide such technology development on reasonable
market terms. Titan SureBeam Brazil and Tech Ion, as the case may be, will be
the owner of any and all rights to the technology developed by them,
including the rights to any patents that may result, and will grant to the
Company a non-exclusive, royalty-free license to use such developed
technology so long as Titan SureBeam Brazil and Tech Ion have at least 19.9%
and 50% ownership interest in the Company, respectively. Any such development
shall be pursuant to a separate development agreement that will incorporate
these principal terms. If neither Titan SureBeam Brazil nor Tech Ion elect
not to provide such technology development, the Company may have such work
performed by a third party. The rights to the technology developed by such
third party will be owned by the Company, including any patents that may
result, and the Company will grant to Titan SureBeam Brazil and to Tech Ion a
non-exclusive, royalty-free license to use such developed technology so long
as Titan Surebeam Brazil and Tech-Ion have at least 19.9% and 50% ownership
interest in the Company, respectively. Any such development shall be pursuant
to a separate development agreement that will incorporate these principal
terms.

Any technology developed during the term of this Agreement, as described above,
shall

                                       18

<PAGE>

be applied, licensed, and/or exploited in Latin America exclusively through the
Company during the term of this Agreement. If such technology is applied,
licensed and/or exploited outside of Latin America, then the Company will be
entitled to receive [...***...] of the resulting net, after tax, profits with
respect thereto during the term of the Agreement.

6.7   COMPLIANCE WITH LAWS. In performing the transactions contemplated in this
Agreement, each Party shall comply with, and shall cause the Company to comply
with, all applicable laws, rules and regulations of Brazil, and the U.S. Foreign
Corrupt Practices Act, as applicable, and each Party shall hold the other
harmless from its failure to do so.

Neither Party nor the Company shall offer, give, promise or pay or cause to be
offered, given, promised or be paid directly or indirectly any money or thing of
value to any political party or official thereof, any candidate for political
office, or any officer, employee or agent of any government or instrumentality
of any government for the purposes of

          (i)  influencing any act or decision of such party, official thereof,
               candidate, officer, employee or agent in his or its official
               capacity, including a decision to fail to perform his or its
               official functions with respect to any transaction contemplated
               herein; or,

         (ii)  inducing any such party official thereof, candidate, officer,
               employee or agent to use his or its influence with a government
               or instrumentality thereof to affect or influence any act or
               decision of such government or instrumentality in order to assist
               either Party or the Company in obtaining or retaining business
               from or with, or directing business to, any person, firm or
               corporation.

Neither Party nor the Company shall offer, give promise to pay, or cause to be
offered, given, promised or be paid any money or thing of value directly or
indirectly to any directors, officers, officials, employees or shareholders of
any nongovernmental customer or prospective customer or to such person's family,
or that are otherwise illegal under applicable law.

6.8   NON-COMPETE.

     (a)  Based on the intention of the Parties that the Company is to be the
          exclusive means by which the Parties or any of their Affiliates its
          Affiliates either obtain and/or provide, as applicable in accordance
          with the activities of each Party, electron beam and x-ray systems,
          equipment and services in Brazil, the Parties agree that, as long as
          each of them is a Party to this Agreement, neither such Party, nor any
          of its Affiliates, shall, without the prior written consent of the
          Company, either individually or in association with others, establish,
          facilitate the business of,

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                     * Confidential Treatment Requested

<PAGE>

          operate, control, or have an ownership interest in or an employment
          relationship with, directly or indirectly, any entity that carries on
          the business of providing food and food product irradiation and
          pasteurization services and industrial irradiation equipment using
          electron beam and x-ray systems or technology to various food
          companies in Brazil, or any other business activity undertaken by the
          Company.

     (b)  the Parties shall promptly notify the Company in writing of any offer
          they receive to enter into an arrangement that could result in a
          violation of Section 6.1(a) and shall promptly remit to the Company
          any profits, compensation, or other remuneration that such Party
          receives as result of a violation of Section 6.1(a).

     (c)  Nothing in this Section 6.1 shall prevent the Parties from owning
          [...***...] of the securities of any publicly traded company.

     (d)  As a condition to employment or other engagement by the Company, the
          Board of Directors may require that any officer or other employee of
          the Company, or any consultant or other independent contractor engaged
          by the Company, enter into a covenant similar to the provisions of
          Section 6.1(a) and (b), both on his or her own behalf, on behalf of
          his or her extended family, or on behalf of his or her employer, as
          the case may be.

7.   CONFIDENTIALITY. For purposes of this Section 7, the term "PARTY" shall be
     interpreted to mean Surebeam Corporation, Tech Ion, Titan Surebeam Brazil
     and the Company.

7.1  Each Party undertakes with the others to keep and procure that its
Affiliates, directors and employees keep in strict confidence all information,
knowledge, experience, data, drawings, designs and other material of a
confidential nature ("INFORMATION") communicated to it by or acquired from the
other or as a result of this Agreement. Included in the definition of
Information is information relating to the business of the Company as well as
information relating to the business of Surebeam Corporation (whether or not
such information relates to the territory in which the Company or Surebeam
Corporation or Titan Surebeam Brazil does business). No Party shall disclose any
such Information to any person whatsoever other than its directors or employees
directly concerned in the performance of this Agreement and the affairs of the
Company. Information made available to a Party as a result of the performance of
this Agreement shall not be used in competition with the other Party.

7.2  The provisions of this Section shall not apply to information which the
party concerned can prove was in its possession at the date of receipt or which
becomes public knowledge (except by reason or default of such Party) or which
such Party obtains from some other person with good legal title thereto, or is
independently developed by such Party.

7.3  Notwithstanding the provisions of this Section, each Party shall be at
liberty to disclose information where, and to the extent that, such disclosure
is properly made pursuant to

                                       20

                     * Confidential Treatment Requested

<PAGE>

and in accordance with a relevant statutory obligation or as otherwise may be
required by the Company in its business and regulatory activities with
government agencies, vendors or bankers; PROVIDED however that the disclosing
Party shall take reasonable steps to obtain, if possible, a written
confidentiality undertaking from the person to whom it wishes to disclose such
information, that is consistent with the terms of this Section and that the
Party from whom the disclosing party obtained the relevant information is given
prior written notice of such disclosure.

7.4  The provisions of this Section 7 shall remain in force for a period of
three years after termination of this Agreement for any reason.

8.   SALE AND ASSIGNMENT OF OWNERSHIP.

8.1  TRANSFER RESTRICTION. Neither Tech Ion nor Titan Surebeam Brazil shall
sell, assign, give, pledge, encumber or otherwise transfer any Equity Quotas
owned by it, whether voluntarily or by operation of law, unless:

     (a)  such transfer complies with all applicable Brazil laws;

     (b)  the proposed transferee agrees in writing to assume all of the
          obligations of the transferring Quotaholder and to comply with this
          Agreement;

     (c)  the proposed transfer complies with the requirements of either Section
          8.2 or 8.3 below; and

     (d)  in the case of a proposed transfer pursuant to Section 8.3, (i) a
          period of three years has elapsed following the start of operations of
          the Company, and (ii) the proposed transferee is not a provider of
          irradiation systems, services and equipment in competition with
          Surebeam Corporation or Titan Surebeam Brazil, or is otherwise engaged
          in a business substantially similar to Surebeam Corporation or Titan
          Surebeam Brazil unless Surebeam Corporation or Titan Surebeam Brazil
          consents in writing to such transferee.

All sales, assignments, pledges or other transfers of ownership interests in the
Company not in compliance with the requirements of clauses (b), (c) or (d) above
shall require the prior majority approval of the Board of Directors.

8.2  PERMITTED TRANSFER. Either Tech Ion or Titan Surebeam Brazil may at any
time pledge, assign or transfer the Equity Quotas owned by it to any
Affiliate of such entity (a "PERMITTED TRANSFEREE"), provided that the
transferor entity guarantees in writing the performance by the transferee of
the transferred obligations and the transferee and transferor agree in
writing that should such transferee cease to be an Affiliate of transferor
the transferee will reassign its interest and obligations to the transferor
and the transferor will accept. No such assignment pledge or transfer under
this Section 8.2 shall relieve an entity of any of its obligations hereunder,
including, without limitation, those arising under Section 7.

                                       21

<PAGE>

8.3  SALE OF TECH ION. Tech Ion's Shareholders agree that they shall not sell or
otherwise transfer to any third party, all or any part of the capital stock of
Tech Ion without the prior written consent of Surebeam Corporation, which
consent shall not be unreasonably withheld. Tech Ion hereby agrees that it shall
not sell or otherwise transfer substantially all its assets without the prior
written consent of Surebeam Corporation, which consent shall not be unreasonably
withheld. In the event that Surebeam Corporation does not consent to such sales
or transfers, then Surebeam Corporation shall acquire such stock or assets of
Tech Ion under the same terms and conditions offered by the third party offeror,
PROVIDED, HOWEVER, that the third party offer is confirmable as being valid, at
no greater than fair market value, and under reasonable terms and conditions.

8.4  RIGHTS OF FIRST REFUSAL.

     (a)  Each Quotaholder of the Company hereby extends to the other
          Quotaholder a right of first refusal with respect to the sale of the
          Equity Quotas held by it or its Affiliates. The price of the Equity
          Quotas will be determined by an independent public accounting firm
          mutually agreed to by the Parties. Additionally, if at any time during
          the term hereof either Quotaholder or its respective Affiliates (the
          "OFFEROR PARTY") receives a bona fide offer from a third party ("THIRD
          PARTY OFFEROR") to purchase said Equity Quotas which offer is
          acceptable to the Offeror Party ("THIRD PARTY OFFER"), then the
          Offeror Party shall first offer to sell said Quotas to the other
          Quotaholder at the same price and an the same terms as have been
          offered by the Third Party Offeror.

     (b)  In the event either Quotaholder receives an unsolicited offer from a
          third party or parties for the purchase of such Quotaholder's Equity
          Quotas, the Quotaholder receiving such offer will promptly inform the
          other Quotaholder of the name, business and address of the third
          party.

     (c)  The Offeror Party's notice of the offer to the other Quotaholder shall
          set forth the name and address of the Third Party Offeror, the per
          quota price offered by the Third Party Offeror, the number of Equity
          Quotas to which the offer applies and the other terms of the Third
          Party Offer.

     (d)  The Offeror Party's offer shall remain effective for acceptance by the
          other Quotaholder (the "ACCEPTANCE PERIOD") for 45 days from the date
          of the Offeror Party's notice. During the Acceptance Period, the other
          Quotaholder may accept the offer to purchase all, and not only a part
          of, the Equity Quotas offered by the Offeror Party by giving written
          notice of such acceptance to the Offeror Party.

     (e)  If the other Quotaholder rejects or fails to accept such offer, the
          Offeror Party shall, subject to the prior written consent of such
          other Quotaholder, which consent shall not be unreasonably withheld,
          have the right, exercisable not later than 90 days following the
          expiration of the Acceptance Period, to consummate the sale of the
          offered quotas to the Third Party Offeror at a price not lower than,

                                       22

<PAGE>

          and on terms not more favorable than the Third Party Offer. If the
          Offeror Party does not consummate such sale within said 90-day period,
          such offered Equity Quotas shall again be subject in all respects to
          the terms, conditions, and restrictions provided in this Section 8.4.

     (f)  If the other Quotaholder agrees to purchase the offered Equity Quotas
          pursuant to this Section 8.4, the closing shall take place not later
          than thirty (30) days following the other Quotaholder's notice of
          acceptance. The time and place of the closing shall be mutually
          agreed.

9.  TERMINATION.

9.1 Any non-defaulting Party (the "INNOCENT PARTY") shall have the right to give
notice in writing as appropriate to the other Party (THE "DEFAULTING PARTY")
that the Innocent Party intends to exercise its right to call for the transfer
of the Defaulting Party's Equity Quotas to the Innocent Party in any of the
following events.

     (a)  material breach by the Defaulting Party of any of its obligations
          under this Agreement and failure by such Defaulting Party to remedy
          such breach (if capable of remedy) [...***...] of being required by
          the Innocent Party by notice so to do.

     (b)  a voluntary arrangement being proposed or approved or an
          administration order being made or a receiver or administrative
          receiver being appointed in respect of the Defaulting Party or of a
          substantial part of the Defaulting Party's assets or undertaking or a
          winding-up resolution or petition being passed or presented in
          relation to the Defaulting Party (otherwise than for the purposes of
          reconstruction or amalgamation) or any circumstances arising which
          entitle the Court or a creditor to appoint a receiver, administrative
          receiver or administrator or to present a winding-up petition or to
          make a winding-up order in respect of the Defaulting Party or other
          similar or equivalent action being taken against or by the Defaulting
          Party by reason of its insolvency or in consequence of debt

9.2 Within ninety (90) days of the Innocent Party giving notice under Section
9.1 of its intention to exercise its rights to call for the transfer of the
Defaulting Party's Equity Quotas to it, the Innocent Party shall have the
right by written notice to call upon the Defaulting Party to transfer its
Equity Quotas to the Innocent Party or any other person or entity designated
by the Innocent Party, at a value equal to such proportion of the Net Asset
Value of the Company as the number of Quotas held by the Defaulting Party
bears to the total number of issued Quotas. The Company's Auditors shall, by
reference to the most recently available quarterly accounts of the Company,
determine the Net Asset Value of the Company. The Auditors' valuation shall
be delivered to all Parties within thirty (30) days of the date of the notice
referred to in this Section.

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                     * Confidential Treatment Requested

<PAGE>

9.3   The transfer contemplated by this Section shall be completed within thirty
(30) days of the receipt of the Auditors' valuation; PROVIDED, HOWEVER, that if
either Party has commenced an arbitration of the issues relating to the alleged
material breach upon which such call for the transfer of the defaulting Party's
Equity Quotas is based, such transfer shall be held in abeyance pending the
issuance of the arbitral award and shall be subject to the terms of the arbitral
award.

9.4   This Agreement shall terminate automatically upon either Tech Ion or Titan
Surebeam Brazil ceasing to bold any Equity Quotas (other than in the case of a
transfer or assignment under Section 8.2), or upon a winding-up resolution being
passed or a winding-up order being made in respect of the Company. Termination
shall not affect the accrued rights of the parties hereunder. Termination shall
not affect those provisions of this Agreement of a continuing nature.

10.   FORCE MAJEURE, CHANGES IN LAW OR REGULATION

10.1  FORCE MAJEURE. Neither Party shall be liable for failure to perform its
obligations hereunder due to causes beyond its control, including but not
limited to, acts of God, fire, flood or other catastrophes; any law, order,
regulation or request of governmental authority of competent jurisdiction,
national emergencies, insurrections, riots, wars, or strikes, lock-outs, work
stoppages or other labor difficulties, power failures, severe weather conditions
or acts or omissions of transportation common carriers. In the event that either
Party is unable to perform any of its obligations under this Agreement for
reasons described in this Section, the non-performing Party shall immediately
give notice to the other Party and do everything reasonably possible to remedy
the condition and resume performance as soon as possible. Upon receipt of such
notice, the obligations under this Agreement which the affected Party is unable
to perform because of such condition shall be suspended for so long as such
condition exists and the relevant cure periods hereunder shall be extended for
the period of time that such condition exists.

10.2  CHANGES IN LAW OR REGULATION. In the event of any material change in the
law affecting the implementation of any provision contained in this Agreement or
the operation or management of the Company in the manner contemplated hereby,
the Parties shall endeavor to agree to appropriate variations to this Agreement
as a consequence. If the Parties are unable to reach agreement within ninety
days of notice in writing from one Party to the others informing them of any
such change, then the Parties may cause the Company to wind up and terminate
this Agreement, and Tech Ion shall cooperate in passing any resolution necessary
in order to effect the same.

11.  NOTICES. Any notice or other document which may be given by either Party
     under this Agreement shall be deemed to have been duly given if left at or
     sent by post (whether by letter or, where the parties agree, by magnetic
     tape or any other form), telex or facsimile transmission (confirming the
     same by post) or, where the parties expressly agree, by registered
     electronic mail, to the addresses set forth above or as may be changed by a
     Party from time to time upon written notice to the other Party. Any such
     communication shall be deemed to have been made to the other Party on the
     day on which such

                                       24

<PAGE>

     communication ought to have been received in due course of post, telex or
     facsimile transmission.

12.  MISCELLANEOUS.

12.1 NO AGENCY. Nothing in or arising out of this Agreement is to be taken as
constituting a partnership or agency relationship between the Parties, and no
Party shall have the right or authority to bind or commit the other in any
manner or for any purposes whatsoever, other than as expressly provided for
herein with respect to the Company.

12.2 REPRESENTATIONS. Each Party represents and warrants that (a) the execution
of this Agreement by it has been duly authorized by all necessary and
appropriate corporate or governmental action, (b) the execution of this
Agreement and the performance of its obligations hereunder will not conflict
with, or result in a breach of or default under, any agreement or instrument
material to it, to which it is a party or by which it is bound, or any order,
decree or judgment of any court or governmental agency or body, and (c) this
Agreement constitutes the valid arid legally binding obligation of such Party,
enforceable in accordance with its terms, except as such enforceability may be
affected by principles of bankruptcy, reorganization or other similar laws of
general applicability.

12.3 SURVIVAL. Notwithstanding any investigation or audit conducted before or
after the execution of this Agreement or the decision of a Party to complete the
execution of this Agreement, each Party shall be entitled to rely upon the
representations, warranties and agreements set forth herein and in any
agreement, document, statement, list, certificate or instrument furnished to
such Party in connection with the performance of this Agreement.

12.4 FURTHER ACTION. Each Party agrees to perform any further acts, give further
assurances and execute and deliver any further documents as may be necessary or
convenient to carry out the provisions and intent of this Agreement. Each Party
shall use and exercise its rights and powers (as to voting or otherwise) in and
in relation to the Company in order to give full effect to the provisions of
this Agreement. The Parties will do all acts required, including but not limited
to, passing appropriate resolutions of the Company, to cause the Company to
undertake to perform the obligations imposed upon it by the terms of the
Agreement.

12.5 GOVERNING LAW:  CONSTRUCTION.

     (a)  The laws of Brazil shall govern this Agreement and the transactions
          contemplated hereby that are subject to the mandatory provisions of
          such laws including the corporate governance of the Company.

     (b)  Captions and titles of clauses and sections are for the convenience of
          the reader only and shall be of no force and effect.

                                       25

<PAGE>

12.6  NO WAIVER. No relaxation, forbearance, delay or indulgence by either party
in enforcing any of the terms and conditions of this Agreement or the granting
of time by either party to the other shall prejudice affect or restrict the
rights and powers of such party hereunder nor shall any waiver by either party
of any breach hereof operate as a waiver of or in relation to any subsequent or
continuing breach hereof

12.7  DISPUTE RESOLUTION. In case of any dispute arising between the Parties
under or in connection with this Agreement or of any deadlock regarding an issue
submitted to the Board of Directors for approval, the Chairman of Titan Surebeam
Brazil and the Chairman of Tech Ion, or their designees, shall meet in person
and attempt to resolve the tie. If the tie is not resolved within thirty (30)
days of the meeting, then the matter shall be submitted to the Brazil-Canada
Chamber of Commerce, in Sao Paulo, Brazil, for arbitration in accordance with
the Brazilian Law. Each Party shall be entitled to elect 1 (one) arbitrator (and
a substitute for him/her) within 30 (thirty) days of submission of the matter to
arbitration. The 2 (two) arbitrators shall jointly designate within 30 (thirty)
days a third arbitrator to preside the arbitration. If either Party fails to
appoint an arbitrator or if the arbitrators fail to elect the third one, then
such arbitrator shall be designated by the President of the Brazil-Canada
Chamber of Commerce, in Sao Paulo, Brazil. The arbitral award is to be given in
writing, within 60 (sixty) days from the constitution of the arbitration
tribunal, or from the substitution of an arbitrator, in English. It shall be
final and binding upon both Parties and shall be enforceable in accordance with
its terms and conditions. The cost of the arbitration, including a reasonable
allowance for attorneys' fees, shall be borne by the losing Party or as
otherwise specified in the ruling of the arbitration tribunal. All proceedings
and records of the arbitration shall be conducted and maintained in the English
language. The Parties agree that the award is to be considered as a settlement
of the dispute between them and shall accept it as the true expression of their
own determination in connection therewith. The Parties agree that either Party
may have the need to obtain immediate relief from the Judiciary. Therefore, the
filing for and obtainment of injunctive relief (or another type of remedy which
cannot be obtained from an arbitration tribunal under Brazilian law) in
connection with this Agreement shall be accepted, and shall not be considered a
breach hereof. In this case, the jurisdiction will be of the courts of the City
of Sao Paulo.

12.8  TAX WITHHOLDING. The Company shall withhold from all amounts paid to any
Quotaholder of the Company which is not a Brazilian corporation, citizen or
resident, as remittances of dividends or interest, such amount of Brazilian
withholding tax as required by applicable legislation and shall remit any
amounts so withheld to the relevant taxing authority. The Company shall furnish
to each such Quotaholder such tax receipts or other official documentation with
respect to the payment of taxes so withheld and remitted as may be issued by the
taxing authority within ten (10) business days of receiving such documents.

12.9  BINDING ON SUCCESSOR. NON-ASSIGNABILITY. This Agreement shall be binding
upon and inure to the benefit of each of the Parties and their respective
successors and permitted assigns; PROVIDED that, except as otherwise specified
in Section 8, no Party may assign

                                       26

<PAGE>

any rights or delegate any duties under this Agreement, in whole or in part,
without the prior written consent of the other Party,

12.10  COUNTERPARTS. This Agreement may be executed in two counterparts, each of
which shall be deemed an original but both of which shall constitute one and the
same document.

12.11  SEVERABILITY. If any provision of this Agreement shall be determined by
any court of competent jurisdiction to be invalid or unenforceable, the
remainder of the Agreement other than that portion determined to he invalid or
unenforceable shall not be affected thereby, and each valid provision hereof
shall be enforced to the fullest extent permitted by law.

12.12  SPECIFIC PERFORMANCE. Each Party acknowledges and agrees that the remedy
at law for any breach of any of the provisions of this Agreement would be
inadequate, and agrees and consents that temporary and permanent injunctive and
other relief may be granted without proof of actual damage or inadequacy of
legal remedy, in any proceeding which may be brought to enforce such provisions.
Accordingly, each of the Parties to this Agreement shall be entitled to claim in
court the specific performance of the obligations assumed by the other Party
hereunder, or of any portion thereof, in pursuance of Article 118 of Law No.
6.404, of December 15, 1976, the Brazilian Corporate Law, and the relevant
sections of Brazilian Code of Civil Procedure, including but not limited to,
Articles 461, 632 and 639.

12.13  COSTS. The expenses involved in the preparation and consummation of this
Agreement and any other agreements or transactions contemplated herein shall be
borne by the Party incurring such expenses.

12.14  ENTIRE AGREEMENT, AMENDMENTS. This Agreement, together with any annexes,
attachments or exhibits hereto, constitutes the entire agreement between the
parties, and supersedes all prior agreements or understandings between them with
respect to the matters referred to herein. This Agreement may be modified or
amended only by an instrument in writing signed by the duly authorized
representatives of both Parties.

12.15  This Amendment shall be executed in two (2) counterparts and annexed to
the Agreement, being each of which deemed an original but both of which shall
constitute one and the same document.

IN WITNESS HEREOF, the Parties hereto have duly executed and delivered this as
an instrument as of this 18th day of August, 2000.

TECH ION INDUSTRIAL BRASIL S.A.               SUREBEAM CORPORATION

By: /s/ Jose Francisco Bufara de Medeiros     By: /s/ Larry A. Oberkfell
   --------------------------------------         -----------------------------

                                       27

<PAGE>

Name: Jose Francisco Bufara de Medeiros       Name: Larry Oberkfell
      -----------------------------------         -----------------------------
Title: President                              Title: President & CEO
      -----------------------------------         -----------------------------

JFBM PARTICIPACOES LTDA

By:/s/ Jose Francisco Bufara de Medeiros  /s/ Jose Francisco Bufara de Medeiros
   -------------------------------------- -------------------------------------
Name:  Jose Francisco Bufara de Medeiros      Jose Francisco Bufara de Medeiros
     ------------------------------
Title: President
      -----------------------------

WITNESSES

2. /s/ ILLEGIBLE                          2. /s/ ILLEGIBLE
  ---------------------------------          -----------------------------------
Name:                                      Name:
ID:                                        ID:

                                       28

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00019-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00019-of-00352.parquet"}]]