Document:

INDEMNITY AGREEMENT

THIS AGREEMENT is made as of the 5th day of February, 2006.

BETWEEN:

        SAFETEK INTERNATIONAL INC., a corporation incorporated under the State
        of Delaware and having an office at 23 Aminadav St., Tel Aviv, Israel
        (the "INDEMNITOR");

AND:

        PROFESSOR YIGAL KOLTIN, member of the Board of Directors of Indemnitor,
        of ___________________________________ (the "INDEMNITEE").

WHEREAS:

A. The Indemnitee has been requested to accept and hold a position as a director
of the Indemnitor; and

B. In consideration of $1.00 and other good and valuable consideration received,
the Indemnitor has agreed to indemnify the Indemnitee for all liability, losses,
damages, costs, charges, expenses, fines and penalties which have been or may be
sustained by the Indemnitee as a result of his acting as a member of the Board
of Directors of the Indemnitor.

IN WITNESS THEREFORE that in consideration of the premises and subject to the
conditions hereunder and in consideration of the sum of ONE DOLLAR ($1.00) now
paid by the Indemnitee to the Indemnitor and other good and valuable
consideration (the receipt and sufficiency of which is hereby acknowledged by
the Indemnitor), the parties agree as follows:

1. General Indemnity. Subject to section 4 hereof, the Indemnitor agrees to
indemnify and save the Indemnitee harmless from and against:

      (a) any and all costs, charges, expenses, fees, damages or liabilities,
      regardless of when they arose and howsoever arising and whether arising in
      law or in equity or under statute, regulation or governmental ordinance of
      any jurisdiction, common law or otherwise (including legal or other
      professional fees), and whether incurred alone or jointly with others,
      which the Indemnitee may suffer, sustain, incur or be required to pay
      arising out of, in connection with or incidental to any action, suit,
      demand, proceeding, investigation or claim which may be brought,
      commenced, made, prosecuted or threatened against the Indemnitee (any of
      the same hereinafter being referred to as a "CLAIM") for or in respect of
      any act, deed, matter or thing done, made, permitted or in respect of any

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      omission to do, make or permit any act, deed, matter or thing whatsoever
      required or desirable to do, make or permit, by the Indemnitee arising out
      of, in connection with or incidental to the management, operations,
      activities or affairs of the Indemnitor or the exercise by the Indemnitee
      of his powers or the performance of his duties as a member of the Board of
      Directors of the Indemnitor, whether sustained or incurred by reason of
      his negligence, default, breach of duty, failure to exercise due diligence
      or otherwise in relation to the Indemnitor;

      (b) any and all costs, charges, expenses, fees, damages or liabilities
      which the Indemnitee may suffer, sustain or incur or be required to pay in
      connection with investigating, initiating, defending, preparing for,
      providing evidence in, instructing and receiving the advice of his own or
      other counsel, or any amount paid to satisfy any judgment made, fine
      imposed, damages or costs or any amount paid or liability incurred by the
      Indemnitee to settle any Claim, or any amount of tax assessed against the
      Indemnitee in respect of any indemnity under this Agreement;

      (c) that to the extent not satisfied, paid or reimbursed by the
      Indemnitor, the Indemnitor shall pay or reimburse the Indemnitee for any
      and all costs, charges, expenses, fees or liabilities the Indemnitee
      sustains, incurs or is required to pay in or in relation to the
      management, operations, activities or affairs of the Indemnitor in the
      Indemnitee's capacity as a member of the Board of Directors of the
      Indemnitor, whether or not incurred in connection with any Claim.

2. Specific Indemnity for Statutory Obligations. Without limiting the generality
of the provisions of section 1 hereof and subject to section 4 hereof, the
Indemnitor agrees to indemnify and save the Indemnitee harmless from and against
any and all charges, costs, expenses, penalties, assessments and liabilities
arising by operation of statute and incurred by the Indemnitee in relation to
the management, operations, activities or affairs of the Indemnitor in the
Indemnitee's capacity as a member of the Board of Directors of the Indemnitor,
including but not limited to all statutory obligations to employees, suppliers,
contractors, subcontractors, repairers and the like and any government or any
agency or division of any government, whether federal, provincial, state,
regional or municipal.

3. Exclusion of Liability. Subject to section 4 hereof, the Indemnitee, in his
capacity as a member of the Board of Directors of the Indemnitor, shall not be
liable for:

      (a) any act, default, omission, or neglect of any other consultant,
      employee, director of the Indemnitor;

      (b) any loss or damages incurred by the Indemnitor owing to any receipt or
      act of any consultant, employee, director of the Indemnitor in which the
      Indemnitee has concurred or joined in for conformity;

      (c) any loss or damages incurred by the Indemnitor through the
      insufficiency or deficiency of title to any property acquired by order of
      the board of directors or the officers of the Indemnitor for or on behalf
      of the Indemnitor;

      (d) the insufficiency or deficiency of any security in or upon which any
      money of the Indemnitor shall be invested or loaned;

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      (e) any loss or damage arising from the bankruptcy, insolvency or tortuous
      act of any person with whom any money, security or effect of the
      Indemnitor shall be deposited;

      (f) any loss, conversion, misapplication or misappropriation of or any
      damage resulting from any dealings with any money, security or other asset
      belonging to the Indemnitor;

      (g) any loss or damage occasioned by any error of judgment or oversight on
      the part of the Indemnitee; or

      (h) any other loss, damage or misfortune whatever.

4. Limitation of Indemnity and Exclusion from Liability. The indemnity provided
for in sections 1 and 2 hereof is subject to the Delaware Revised Statutes, and
will be effective unless proved that:

      (a) the Indemitee's failure to act constituted a breach of his fiduciary
      duties as member of the Board of Directors, and

      (b) the Indemitee's breach of those duties involved intentional
      misconduct, fraud or a knowing violation of law.

5. Court Applications. The Indemnitor represents and warrants that it will in a
timely manner take all necessary steps, including without limitation any and all
necessary court applications, to discharge its obligations under this Agreement.

6. Extensions, Modifications. Except as otherwise provided herein, this
Agreement is absolute and unconditional and the obligations of the Indemnitor
shall not be affected, discharged, impaired, mitigated or released by any
extension of time, indulgence or modification which the Indemnitee may extend or
make with any person making any Claim or demand against the Indemnitee in
connection with his duty as a member of the Board of Directors of the
Indemnitor, or in respect of any liability incurred by him as a member of the
Board of Directors of the Indemnitor.

7. Other Rights and Remedies. The indemnification provided by this Agreement
shall not be deemed to derogate from or exclude any other rights to which the
Indemnitee may be entitled under any provision of any statute or otherwise at
law.

8. Insolvency. The liability of the Indemnitor under this Agreement shall not be
affected, discharged, impaired, mitigated or released by reason of the discharge
or release of the Indemnitee in any bankruptcy, insolvency, receivership or
other proceedings of creditors.

9. Multiple Proceedings. No action or proceeding brought or instituted under
this Agreement and no recovery pursuant thereto shall be a bar or defence to any
further action or proceeding which may be brought under this Agreement.

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10. Modification. No modification of this Agreement shall be valid unless the
same shall be in writing and signed by the Indemnitor and the Indemnitee,
provided however that if the Indemnitee is requested to or agrees to act as a
member of the Board of Directors of any subsidiary of the Indemnitor, the
indemnity provided for herein shall automatically be deemed to apply to the
Indemnitee acting as such, mutatis mutandis.

11. Procedure For Claims.

      (1) In the event the Indemnitee is named as a party in any action, claim,
      suit, proceeding or investigation upon which the Indemnitee intends to
      base a claim for indemnification hereunder, the Indemnitee shall give the
      Indemnitor prompt written notice of such action, claim, suit, proceeding
      or investigation (provided, however, that failure of the Indemnitee to
      provide such notice shall not relieve the Indemnitor of any liability to
      the Indemnitee the Indemnitor may have under this Agreement excepted, to
      the extent that the Indemnitor is materially prejudiced by such failure).

      (2) The Indemnitor shall participate in and, assume the defense of any
      such action, including for certainty any derivative action, claim, suit,
      proceeding or investigation all at the Indemnitor's expense provided,
      however, that counsel retained by the Indemnitor shall be satisfactory to
      the Indemnitee in the exercise of his reasonable judgement.
      Notwithstanding the Indemnitor's assumption of the defense of such action,
      claim, suit, proceeding or investigation, the Indemnitee shall have the
      right to employ separate counsel and to participate in, but not control,
      the defense of such action, claim, suit, proceeding or investigation, and
      the Indemnitor shall bear the reasonable fees, costs and expenses of such
      separate counsel as such fees, costs and expenses are incurred (provided
      that with respect to any single action, claim, suit, proceeding or
      investigation, the Indemnitor shall not be required to bear the fees,
      costs and expenses of more than one such counsel in any single
      jurisdiction) if (a) the use of counsel chosen by the Indemnitor to
      represent the Indemnitee would present such counsel with a conflict of
      interest; (b) the defendants, respondents or other parties in any such
      action, claim, suit, proceeding or investigation include both the
      Indemnitee on the one hand and the Indemnitor on the other hand, and the
      Indemnitee has reasonably concluded that representation of both parties by
      the same counsel would be inappropriate due to actual or potential
      differing interests between them (in which case the Indemnitor shall not
      have the right to direct the defense of such action, claim, suit,
      proceeding or investigation on behalf of the Indemnitee); (c) the
      Indemnitor shall not have employed counsel satisfactory to the Indemnitee
      in the exercise of the Indemnitee's reasonable judgment to represent him,
      within a reasonable time after notice of the institution of such action,
      proceeding or investigation; or (d) the Indemnitor authorizes the
      Indemnitee to employ separate counsel at the Indemnitor's expense.

      (3) The Indemnitee shall cooperate with the Indemnitor in the Indemnitor's
      defense by providing such information and other assistance which the
      Indemnitor may reasonably request in connection with such defense.

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         (4) The Indemnitor shall not, without the Indemnitee's prior written
         consent, settle, compromise, consent to the entry of any judgment in or
         otherwise seek to terminate any action, claim, suit or proceeding in
         respect of which indemnification may be sought hereunder (whether or
         not the Indemnitee is a party thereto) unless such settlement,
         compromise, consent or termination includes a release of the Indemnitee
         from any liabilities arising out of such action, claim, suit or
         proceeding. The Indemnitee shall not, without the Indemnitor's prior
         written consent, admit liability, settle, compromise, consent to the
         entry of any judgment in or otherwise seek to terminate any action,
         claim, suit, investigation or proceeding referred to in the preceding
         paragraph and the Indemnitee shall not disclose the existence of this
         Agreement unless required by law, subpoena, court order or upon the
         advice of counsel.

12. Resignation. Nothing in this Agreement shall prevent the Indemnitee from
resigning from the Board of Directors of the Indemnitor or from exercising any
rights he may have to terminate any agreement he may have with the Indemnitor.

13. Termination. The obligations of the Indemnitor shall not terminate or be
released upon the Indemnitee ceasing to act as a member of the Board of
Directors of the Indemnitor at any time or times and such obligations shall
survive the resignation of the Indemnitee. The Indemnitor's obligations may be
terminated or released only by a written instrument executed by the Indemnitee.

14. Tax Gross Up. The amount of any indemnity payable to the Indemnitee will be
computed in accordance with the following formula:

         (B - D)
A =      ---------
         (1 - C)

where:

A = the amount of indemnity payable by the Indemnitor to the Indemnitee pursuant
to this Agreement,

B = the amount of indemnity that would otherwise be payable by the Indemnitor to
the Indemnitee pursuant to this Agreement on the assumption that such amount is
computed without reference to any increased liability of the Indemnitee under
applicable income, payroll, value added or any other tax laws arising in
consequence of such payment,

C = the aggregate of the highest effective rates of all taxes (including all
surtaxes) under such tax laws applicable to the Indemnitee in respect of such
payment, after giving effect to any applicable bilateral tax convention or
treaty, and

D = any such tax required by law to be paid by or for the account of the
Indemnitee on or with respect to the Grossed Up Amount, and which is deducted by
the Indemnitor from that amount and remitted to a lawful taxing authority for
the account of the Indemnitee.

For the purposes of this section, "Grossed Up Amount" means (B) divided by
(1-C), B and C having meanings as defined above.

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15. Advances. In any case in which the Indemnitee incurs or becomes liable to
pay any amount in respect of which he is entitled to be indemnified by the
Indemnitor pursuant to the provisions of this Agreement, the Indemnitor shall
advance such amount to the Indemnitee by way of loan forthwith upon written
demand therefor by the Indemnitee to the Indemnitor. Such notice shall be
accompanied by a written undertaking by the Indemnitee to repay the full amount
of any funds so advanced forthwith upon it being determined by the court on
application for such approval, that the Indemnitee is not entitled to
indemnification in respect thereof. In that event any amount so advanced shall
be repaid forthwith following such determination and shall bear interest at 2%
above the prime rate charged by the Indemnitor's bankers to its preferred
commercial customers from time to time during the period from the date of
advance to the date of repayment.

16. Notices. Any notice to be given by one party to the other shall be
sufficient if delivered by hand, deposited in any Post Office in Israel,
registered, postage prepaid, or sent by means of electronic transmission (in
which case any message so transmitted shall be immediately confirmed in writing
and mailed as provided above), addressed, as the case may be:

(a)   To the Indemnitor:

               SafeTek International, Inc.

               23 Aminadav St., Tel Aviv, Israel

               Facsimile:  +972-3-561-3465

               Attention: Dr. Shay Goldstein

      with a copy to:

               Ori Rosen & Co. Law Offices, 1 Azrieli Center (Round Building)

               Tel Aviv 67021, Israel

                           Fax: +972-3-607-4701

               Email: ori@rosenlaw.co.il

               Attention: Ori Rosen, Adv.

(b)   To the Indemnitee:

               Prof. Yigal Koltin

               ----------------------

               Facsimile: +972-__________

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or at such other address of which notice is given by the parties pursuant to the
provisions of this section. Such notice shall be deemed to have been received
when delivered, if delivered, and if mailed, on the fifth business day
(exclusive of Saturdays, Sundays and statutory holidays) after the date of
mailing. Any notice sent by means of electronic transmission shall be deemed to
have been given and received on the day it is transmitted, provided that if such
day is not a business day then the notice shall be deemed to have been given and
received on the next business day following. In case of an interruption of the
postal service, all notices or other communications shall be delivered or sent
by means of electronic transmission as provided above, except that it shall not
be necessary to confirm in writing and mail any notice electronically
transmitted.

17. Governing Law. This Agreement shall be governed by and construed in
accordance with the State of Delaware and all disputes arising under this
Agreement shall be referred to and the parties hereto irrevocably attorn to the
jurisdiction of the courts of the State of Delaware.

18. Other Acts. The Indemnitor and the Indemnitee agree that they shall do all
such further acts, deeds or things and execute and deliver all such further
documents, instruments or certificates as may be necessary or advisable for the
purpose of assuring and confirming unto the Indemnitee the rights hereby created
or intended, and of giving effect to and carrying out the intention or
facilitating the performance of the terms of this Agreement.

19. Interpretation. Wherever the singular or masculine are used throughout this
Agreement, the same shall be construed as meaning the plural or the feminine or
body politic or corporate and whenever the plural is used throughout this
Agreement the same shall be construed as meaning the singular, where the context
or the parties hereto so require, and the liabilities and obligations of the
Indemnitor hereunder shall be joint as well as several.

20. Invalid Terms Severable. If any term, clause or provision of this Agreement
shall be held invalid or contrary to law, the validity of any other term, clause
or provision shall not be affected and such invalid term, clause or provision
shall be considered severable.

21. Entire Agreement. This Agreement shall supersede and replace any and all
prior agreements between the parties hereto respecting the matters set forth
herein, and shall constitute the entire agreement between the parties in respect
of the matters set forth herein. There are no representations, warranties,
collateral agreements, or conditions expect as set forth herein.

22. Binding Effect. All of the agreements, conditions and terms of this
Agreement shall extend to and be binding upon the Indemnitor and their heirs,
executors, administrators and other legal representatives, successors and
assigns and shall enure to the benefit of and may be enforced by the Indemnitee
and his heirs, executors, administrators and other legal representatives,
successors and assigns.

23. Independent Legal Advice. The Indemnitor acknowledges that it has been
advised by the Indemnitee to obtain independent legal advice with respect to
entering into this Agreement, that they have obtained such independent legal
advice or have expressly waived such advice, and that they are entering into
this Agreement with full knowledge of the contents hereof, of their own free
will and with full capacity and authority to do so.

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24. Power and Authority of Indemnitor. The Indemnitor represents and warrants to
the Indemnitee that this Agreement when duly and validly executed and delivered
by the Indemnitor will constitute a legal, valid and binding obligation of the
Indemnitor enforceable against the Indemnitor in accordance with the terms
hereof and that the Indemnitor, if a corporation, is duly incorporated and
organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation, has the necessary corporate power, capacity and
authority to enter into this Agreement and perform its obligations hereunder and
that the execution and delivery of this Agreement by the Indemnitor has been
duly and properly authorized by all necessary corporate action and that.

25. Counterparts. This Agreement may be signed in counterparts, in writing or by
electronic facsimile transmission or by other means of electronic communication
capable of producing a printed copy, each of which will be deemed to be an
original and all such counterparts together will constitute one and the same
instrument and notwithstanding the date of execution, will be deemed to be
effective as of the date set forth above.

IN WITNESS WHEREOF the Indemnitor and the Indemnitee have hereunto set their
hands and seals as of the day and year first above written.

By the Indemnitor:

SAFETEK INTERNATIONAL, INC.

Per:/s/ Amnon Presler
Authorized Signatory

SIGNED, SEALED and DELIVERED by             )
Prof. Yigal Koltin in the presence of:      )
                                            )
-----------------------------------         )
Name                                        )
                                            )   /s/ Yigal Koltin
-----------------------------------         )   ----------------
Address                                     )   PROF. YIGAL KOLTIN
                                            )
-----------------------------------         )
Occupation                                  )
                                            )
                                            )
                                            )
                                            )CONSULTING AGREEMENT

This consulting agreement (the "AGREEMENT") is entered into as of the 5 day of
February, 2006 (the "EFFECTIVE DATE") by and among SAFETEK INTERNATIONAL INC..,
a company incorporated under the laws of the State of Delaware, with its
principal office at 23 Aminadav St., Tel Aviv (the "COMPANY"), and PROF. YIGAL
KOLTIN of Newton, MA, USA (the "CONSULTANT").

WHEREAS   Consultant is engaged in the provision of advisory services as
          provided herein, and is a member of the Board of Directors of the
          Parent Company (as defined below); and

WHEREAS   the Company desires to retain certain services from Consultant, and
          Consultant desires to provide such services to Company;

Now, therefore, in consideration of their respective undertakings herein
contained, and other considerations, the sufficiency of which is hereby
acknowledged, the parties hereto hereby agree as follows:

1.    Term; Termination. This Agreement shall commence on the Effective Date and
      continue until terminated by either party, for or without any reason
      whatsoever, by providing 30 days' written notice to the other party, and
      in such event Company shall compensate Consultant for Services actually
      performed prior to termination.

2.    The Services

      2.1.  Consultant shall provide the Company and its parent company, SafeTek
            International Inc. (the "PARENT COMPANY"), with advisory services on
            a non-exclusive basis as shall be requested by the CEO of the
            Company from time to time (the "SERVICES

      2.2.  Consultant shall use all required know-how, energy, expertise,
            talent, experience and best efforts in order to provide the Services
            hereunder. Consultant confirms that he is available to provide such
            required services. Company confirms that subject to the provisions
            of this Agreement (including, without limitation, the provisions of
            Exhibit A hereto concerning proprietary information, confidentiality
            and non-competition), Consultant is and may be employed for other
            business or professional activities.

      2.3.  Consultant shall utilize the highest professional skill, diligence,
            ethics and care to ensure that all Services are performed to the
            full satisfaction of Company and to provide the expertise required
            in connection with such Services.

3.    Compensation and Reimbursement

      3.1.  Company shall pay Consultant, as compensation for the provision of
            all Services hereunder, a gross amount equal to US$ 250 per hour of
            consultation (the "FEE"). The Fee will be payable against a valid
            monthly invoice, furnished by Consultant to Company and detailing
            the number of hours and services provided by Consultant..

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      3.2.  Subject to the execution of an option grant agreement between
            Consultant and the Parent Company, in a standard form used by the
            Parent Company (the "OPTION AGREEMENT"), Consultant shall be
            entitled to participate in the Employee Stock Option Plan adopted by
            the Parent Company (the "ESOP"), under the following terms and
            conditions:

4.    Consultant shall receive options to purchase 300,694 shares of Common
      Stock of the Parent Company, par value US$ 0.0001 each, at an exercise
      price per share equal to 90% of the last transaction price quoted for such
      date by the NASDAQ system or the NASDAQ National Market, as of the Stock
      Option Agreement date, according to the company
      Employees/Consultants/Directors Stock Compensation Plan; (the "Options").

            4.1.1. The vesting of the Options shall occur in 12 equal quarterly
                  installments of the Common Stock to which the Options pertain,
                  over a period of 36 months, on the last date of each calendar
                  quarter from and after the first quarter after agreement date
                  and so long as this Agreement remains in effect. If this
                  Agreement is terminated prior to the full vesting of the
                  Options, for any reason whatsoever, the unvested portion of
                  the Options shall be cancelled. Vested Options will be
                  exercisable for a period of 3 months after termination of this
                  Agreement.

            4.1.2. For the avoidance of doubt, the terms set forth in this
                  section are in addition to terms and conditions set forth in
                  the ESOP and in the Option Agreement, as determined by the
                  Board of Directors of the Parent Company, in its sole
                  discretion, and the grant of the Options shall be subject to
                  the Consultant's execution of the Option Agreement and all
                  ancillary documents.

      4.2.  The Company shall reimburse Consultant for out of pocket expenses
            incurred in connection with the performance of his duties under this
            Agreement, only if the same has been approved in advance and in
            writing by the Company. As a condition to reimbursement, Consultant
            shall provide Company with all invoices, receipts and other evidence
            of expenditure as may be reasonably required by Company from time to
            time.

      4.3.  The Fee and the Options constitute the full and final consideration
            for the Services, and Consultant shall not be entitled to any
            additional consideration, of any form, for the Services. By signing
            at the end of this Agreement, the Consultant acknowledges and agrees
            that as a service provider to Company he is not entitled to receive
            from Company any social benefits (including, without limitation,
            paid vacation days, paid sick leave, severance payments, pension
            funds, etc.) to which he may be entitled under any applicable law.

5.    Confidentiality; Non-Competition. By executing this Agreement, Consultant
      confirms and agrees to the provisions of Company's Proprietary
      Information, Confidentiality and Non-Competition Agreement attached in
      EXHIBIT A hereto (an "NDA").

6.    Independent Contractor. Consultant agrees and acknowledges that he is
      performing the Services hereunder as an independent contractor, and that
      no employer-employee relationship exists or will exist between Consultant
      and Company.

7.    Representations by Consultant. Consultant represents and warrants to
      Company that the execution and delivery of this Agreement and the
      fulfillment of the terms hereof (i) will not constitute a default under or
      conflict with any agreement or other instrument to which he is a party or
      by which he is bound; (ii) will not result in a breach of any
      confidentiality undertaking to any third party; and (iii) do not require
      the consent of any person or entity.

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                                      -3-

8.    Miscellaneous. This Agreement constitutes the entire understanding between
      the parties with respect to the matters referred to herein. This Agreement
      shall be governed by the laws of the State of Israel, excluding its
      conflict of law rules, and the courts of Tel-Aviv shall have exclusive
      jurisdiction over the parties. This Agreement may not be assigned by
      Consultant. This Agreement may not be amended or modified, except by the
      written consent of both parties hereto. No failure or delay on the part of
      any party hereto in exercising any right, power or remedy hereunder shall
      operate as a waiver thereof. Headings to sections herein are for the
      convenience of the parties only, and are not intended to be or to affect
      the meaning or interpretation of this Agreement. In the event that any
      covenant, condition or other provision contained in this Agreement is held
      to be invalid, void or illegal by any court of competent jurisdiction, the
      same shall be deemed severable from the remainder thereof, and shall in no
      way affect, impair or invalidate any other covenant, condition or other
      provision therein contained. All notices required to be delivered under
      this Agreement shall be effective only if in writing and shall be deemed
      given when received by the party to whom notice is required to be given
      and shall be delivered personally, by registered mail, by fax or by means
      of electronic communication.

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

/s/ Amnon Presler                                   /s/ Yigal Koltin
-----------------                                   ----------------
Oriens Life Sciences (Israel), Ltd.                 Prof. Yigal Koltin
(Company)                                           (Consultant)

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                                      -4-

                                    EXHIBIT A

This Proprietary Information, Confidentiality and Non-Competition Agreement is
attached as Exhibit A to that certain Services Agreement (the "AGREEMENT")
executed by and between ORIENS LIFE SCIENCES (ISRAEL), LTD. (the "COMPANY") and
PROF. YIGAL KOLTON ("CONSULTANT").

All the capitalized terms herein shall have the meanings ascribed to them in the
Agreement. For purposes hereof, the term "Company" shall mean and include the
Company, its parent company SafeTek International Inc., and any of their
subsidiaries and affiliates.

Consultant's obligations and representations and Company's rights under this
Exhibit shall apply as of the time he first became engaged with Company,
regardless of the date of execution of the Agreement.

CONFIDENTIALITY; PROPRIETARY INFORMATION
----------------------------------------

1.    "PROPRIETARY INFORMATION" means confidential and proprietary information
      concerning the business and financial activities of Company, including
      patents, patent applications, trademarks, copyrights and other
      intellectual property, and information relating to the same, technologies
      and products (actual or planned), know how, inventions, research and
      development activities, inventions, trade secrets and industrial secrets,
      and also confidential commercial information such as investments,
      investors, employees, customers, suppliers, marketing plans, etc., all the
      above - whether documentary, written, oral or computer generated.
      Proprietary Information shall also include information of the same nature
      which Company may obtain or receive from third parties.

2.    Proprietary Information shall be deemed to include any and all proprietary
      information disclosed by or on behalf of Company and irrespective of form
      but excluding information that (i) was known to Consultant prior to
      Consultant's association with Company and can be so proven; (ii) is or
      shall become part of the public knowledge except as a result of the breach
      of the Agreement or this Exhibit by Consultant; (iii) reflects general
      skills and experience gained during Consultant's engagement by Company; or
      (iv) reflects information and data generally known in the industries or
      trades in which Company operates.

3.    Consultant recognizes that Company received and will receive confidential
      or proprietary information from third parties, subject to a duty on
      Company's part to maintain the confidentiality of such information and to
      use it only for certain limited purposes. In connection with such duties,
      such information shall be deemed Proprietary Information hereunder,
      mutatis mutandis.

4.    Consultant agrees that all Proprietary Information, and patents,
      trademarks, copyrights and other intellectual property and ownership
      rights in connection therewith shall be the sole property of Company its
      subsidiaries and their assigns. At all times, both during and after the
      Consulting Term, Consultant will keep in confidence and trust all
      Proprietary Information, and Consultant will not use or disclose any
      Proprietary Information or anything relating to it without the written
      consent of Company or its subsidiaries, except as may be necessary in the
      ordinary course of performing Consultant's duties under the Agreement.

5.    Upon termination of Consultant's engagement with Company, Consultant will
      promptly deliver to Company all documents and materials of any nature
      pertaining to Consultant's engagement with Company, and will not take with
      his any documents or materials or copies thereof containing any
      Proprietary Information.

<PAGE>
                                      -5-

DISCLOSURE AND ASSIGNMENT OF INVENTIONS
---------------------------------------

6.    "INVENTIONS" means any and all inventions, improvements, designs,
      concepts, techniques, methods, systems, processes, know how, computer
      software programs, databases, mask works and trade secrets, whether or not
      patentable, copyrightable or protectible as trade secrets; "COMPANY
      INVENTIONS" means any Inventions that are made or conceived or first
      reduced to practice or created by Consultant, whether alone or jointly
      with others, during the period of Consultant's engagement with Company,
      and which are: (i) developed using equipment, supplies, facilities or
      Proprietary Information of Company, (ii) result from work performed by
      Consultant for Company, or (iii) related to the field of business of
      Company, or to current or anticipated research and development.

7.    Consultant undertakes and covenants he will promptly disclose in
      confidence to Company all Inventions deemed as Company Inventions.

8.    Consultant hereby irrevocably transfers and assigns to Company all
      worldwide patents, patent applications, copyrights, mask works, trade
      secrets and other intellectual property rights in any Company Invention,
      and any and all moral rights that he may have in or with respect to any
      Company Invention.

9.    Consultant agrees to assist Company, at Company's expense, in every proper
      way to obtain for Company and enforce patents, copyrights, mask work
      rights, and other legal protections for Company Inventions in any and all
      countries. Consultant will execute any documents that Company may
      reasonably request for use in obtaining or enforcing such patents,
      copyrights, mask work rights, trade secrets and other legal protections.
      Such obligation shall continue beyond the termination of Consultant's
      engagement with Company. Consultant hereby irrevocably designates and
      appoints Company and its authorized officers and agents as Consultant's
      agent and attorney in fact, coupled with an interest to act for and on
      Consultant's behalf and in Consultant's stead to execute and file any
      document needed to apply for or prosecute any patent, copyright,
      trademark, trade secret, any applications regarding same or any other
      right or protection relating to any Proprietary Information (including
      Company Inventions), and to do all other lawfully permitted acts to
      further the prosecution and issuance of patents, copyrights, trademarks,
      trade secrets or any other right or protection relating to any Proprietary
      Information (including Company Inventions), with the same legal force and
      effect as if executed by Consultant himself.

NON-COMPETITION
---------------

10.   Consultant agrees and undertakes that he will not, so long as the
      Agreement is in effect and for a period of twelve (12) months following
      termination of the Agreement, for any reason whatsoever, directly or
      indirectly, in any capacity whatsoever, engage in, become financially
      interested in, be employed by, or have any connection with any business or
      venture that is, or will be during the Consulting Term, engaged in any
      activities competing with the activities of Company at such time.

11.   Consultant agrees and undertakes that during the Term and for a period of
      twelve (12) months following termination of his engagement for whatever
      reason, Consultant will not, directly or indirectly, including personally
      or in any business in which Consultant may be an officer, director or
      shareholder, solicit for employment any person who is employed by Company,
      or any person retained by Company as a consultant, advisor or the like who
      is subject to an undertaking towards Company to refrain from engagement in
      activities competing with the activities of Company, or was retained as an
      employee or a consultant, advisor or the like during the six months
      preceding termination of the Term.

<PAGE>
                                      -6-

TRADE OF PARENT COMPANY SECURITIES
----------------------------------

12.   Consultant acknowledges that the Company is a wholly-owned subsidiary of
      the Parent Company, which is a publicly traded company. Therefore,
      Consultant agrees not to use any proprietary Information in connection
      with the purchase or sale of the securities of the Parent Company.
      Consultant further acknowledges that any such use would constitute a
      violation of securities laws.

REASONABLENESS OF PROTECTIVE COVENANTS; INTENT OF PARTIES
---------------------------------------------------------

13.   Insofar as the protective covenants set forth in this Exhibit are
      concerned, Consultant specifically acknowledges, stipulates and agrees as
      follows: (i) the protective covenants are reasonable and necessary to
      protect the goodwill, property and Proprietary Information of Company, and
      the operations and business of Company; and (ii) the time duration of the
      protective covenants is reasonable and necessary to protect the goodwill
      and the operations and business of Company, and does not impose a greater
      restrain than is necessary to protect the goodwill or other business
      interests of Company. Nevertheless, if any of the restrictions set forth
      in this Exhibit is found by a court having jurisdiction to be unreasonable
      or overly-broad as to geographic area, scope or time or to be otherwise
      unenforceable, the parties hereto intend for the restrictions set forth in
      this Exhibit to be reformed, modified and redefined by such court so as to
      be reasonable and enforceable and, as so modified by such court, to be
      fully enforced.

14.   Consultant acknowledges that the legal remedies for breach of the
      provisions of this Exhibit may be found inadequate and therefore agrees
      that, in addition to all of the remedies available to Company in the event
      of a breach or a threatened breach of any of such provisions, Company may
      also, in addition to any other remedies which may be available under
      applicable law, obtain temporary, preliminary and permanent injunctions
      against any and all such actions.

15.   Consultant recognizes and agrees: (i) that this Exhibit is necessary and
      essential to protect the business of Company and to realize and derive all
      the benefits, rights and expectations of conducting Company's business;
      (ii) that the area and duration of the protective covenants contained
      herein are in all things reasonable; and (iii) that good and valuable
      consideration exists under the Agreement, for Consultant's agreement to be
      bound by the provisions of this Exhibit.

16.   Consultant's undertakings set forth in this Exhibit shall remain in full
      force and effect after termination of the Agreement or any renewal
      thereof.

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