Document:

MASON, GRIFFIN & PIERSON
                           A Professional Corporation

                                 EXHIBIT 10.115

April 29, 2005

Via E-Mail and Regular U.S. Mail

Dr. Bogdan Castle Maglich,  Chairman and CEO
HiEnergy Technologies,  Inc.
1601-B Alton Parkway
Irvine, CA  92606

            Re:   Isaac Yeffet v. HiEnergy Technologies, Inc.

Dear Dr. Maglich:

      Confirming our telephone  discussions of earlier this week, Mason, Griffin
& Pierson would be pleased to represent HiEnergy  Technologies,  Inc. in defense
of the claims of Isaac Yeffet pending  herein the State of New Jersey.  It is my
understanding  that there is an ongoing  arbitration  proceeding  in which it is
proposed that Mason,  Griffin & Pierson be substituted in the place and stead of
Pellettieri,  Rabstein  & Altman  law firm.  The Rules of Ethics  governing  the
practice of law in New Jersey  require  that we provide the  following  retainer
letter to our client. This letter serves to confirm this firm's fees and billing
practices  and is to confirm your  agreement to pay for the legal  services that
will be provided.

      In the  interest  of both  the firm and your  company,  Mason,  Griffin  &
Pierson  maintains  records  with  regard  to the time  which we  expend on your
behalf.  In  recording  that  time,  we take into  consideration  the total time
involved  providing the service which, by necessity,  would include  preparation
time for the service provided.

      Mason, Griffin & Pierson is to be compensated for its legal services on an
hourly rate basis,  plus reimbursed for direct  out-of-pocket  costs.  Partner's
rates for services  involved in matters in  litigation  or  alternative  dispute
resolution  are at $325 per hour and for  associates  $250per hour and paralegal
services at the rate of $75 per hour,  for which the firm requires  receipt of a
$20,000  retainer  to  guarantee  against  said  billing.   The  "costs"  and/or
disbursements  for which we will be  reimbursed,  typically  include but are not
limited to court filing fees, court reporter  charges,  the fees of technical or
expert witnesses, computerized research, overnight or express mailing as well as
long distance telephone charges, photocopying and travel.

<PAGE>

                            MASON, GRIFFIN & PIERSON
                           A Professional Corporation

      The firm's billing  statements  generally will be prepared and mailed on a
monthly basis immediately following the month in which services are rendered and
disbursements  are made.  We expect prompt  payment,  and in no event later than
thirty (30) days from the date of the statement.  We are confident that you will
make  every  effort to pay us  promptly.  Occasionally,  however,  a client  has
difficulty in making timely  payments.  To avoid burdening those clients who pay
their  statements  promptly with higher fees reflecting the added costs we incur
as a result of clients who are delinquent,  a monthly service charge of 1.5% may
be added for late  payments.  This charge is assessed  on amounts  which  remain
unpaid for more than thirty (30) days from the date the bill was rendered. In no
event will the service charge be greater than that permitted by applicable  law.
In the unlikely  event that we are required to institute  legal  proceedings  to
collect  fees and costs and prevail in such an action,  we will be entitled to a
reasonable  attorneys'  fee and other  costs of  collection.  In addition to any
other actions  available to us, we also reserve the right to  discontinue  legal
representation  on a delinquent  account.  Naturally,  we do not expect that any
such problems will arise between us.

      With  respect to file  retention,  it is the firm's  practice  to maintain
client  files  for a period of seven (7) years  following  the  conclusion  of a
matter.  Estate files will  generally be maintained  for a longer period of time
until they are no longer needed. Should you desire to preserve your file, please
make arrangements to obtain the file prior to its destruction.

      Finally, as your counsel,  communications between you and the attorneys of
this firm are privileged.  I have enclosed herewith a copy of our firm's privacy
policy. Please feel free to contact me should you have any questions relative to
same.

      We look  forward to working  with you on this  matter.  Please  sign below
where indicated to acknowledge your understand and agreement to the terms of our
representation and return your signed letter to me in the enclosed  envelope.  A
copy of this letter is enclosed for your records.

                                                     Very truly yours,

                                                  MASON, GRIFFIN & PIERSON, P.C.

                                                  By: /c/ Charles F. Harris
                                                      --------------------------

      I consent to your firm's  representation  on the terms and  conditions set
forth in this letter.

      Dated:  5/2/05                                  /c/ Bogdan C. Maglich
                                                      --------------------------EXHIBIT 10.116

                        SIEMENS MAINTENANCE SERVICES, LLC
                         SUBCONTRACT No. 7600-05-C-0002

<TABLE>
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<S>                                                                 <C>
CONTRACTOR                                                          SUBCONTRACTOR
HI ENERGY TECHNOLOGIES, Inc.                                        SIEMENS MAINTENANCE SERVICES, LLC
1601 B Alton Parkway                                                250 East Arapaho Road
Irvine, Ca 92606                                                    Suite 175
                                                                    Richardson, Texas 75081

DESIGNATED REPRESENTATIVE:  Dr. Bogdan C. Maglich
PHONE:  949.757.0855       FAX: 949.757.1477                        DESIGNATED REPRESENTATIVE: Jim Constantinos
                                                                    PHONE :(972) 238-6806       FAX: 972-238-6898
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</TABLE>

                                SUBCONTRACT TERMS
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ARTICLE 1: ENGAGEMENT:

1.1 CONTRACTOR hereby engages and SUBCONTRACTOR hereby accepts the engagement to
perform and provide the Work set forth in Exhibit A hereof and incorporated
herein, in connection with any project and in accordance with the terms and
conditions of this SUBCONTRACT. ("CONTRACTOR is defined to include affiliates,
subsidiaries, partners, joint ventures, licensees, distributors")

1.2 SUBCONTRACTOR shall perform the Work as an independent company in the manner
and means of performing the Work as reasonably required from time to time by
CONTRACTOR and otherwise in accordance with the requirements of this
SUBCONTRACT. This SUBCONTRACT is not intended, and shall not be construed to
create, between CONTRACTOR and SUBCONTRACTOR, the relationship of principal and
agent, joint ventures, co-partners or any other such relationship, the existence
of which is hereby expressly denied. No employee or agent engaged by
SUBCONTRACTOR shall be, or shall be deemed to be, an employee or agent of
CONTRACTOR.

1.3 This SUBCONTRACT shall be construed and governed by the laws of the State of
Texas. SUBCONTRACTOR represents that it is duly authorized to do business in all
locations where the Work is to be performed.

1.4 The parties hereby agree that SUBCONTRACTOR shall be the Exclusive Service
Provider to the CONTRACTOR for the CONTRACTORS Equipment. The foregoing sentence
notwithstanding, nothing herein shall preclude CONTRACTOR from performing the
same or similar services with its own employees. "CONTRACTOR Equipment" is
defined as Hi-Energy, Inc. products. SUBCONTRACTORS services include, but are
not limited to, installation, repair and maintenance. In the event SUBCONTRACTOR
cannot or does not meet a specific service/maintenance requirement and
CONTRACTOR must either self perform or dispatch a third party, CONTRACTOR agrees
to notify SUBCONTRACTOR, in writing, so that SUBCONTRACTOR can take the proper
steps to rectify the situation in order to perform said services/maintenance in
the future. The "Exclusive Service Provider" status of the SUBCONTRACTOR in
relation to the CONTRACTOR shall continue to be applicable to any future
CONTRACTOR or SUBCONTRACTOR name changes and/or recognition of CONTRACTOR or
SUBCONTRACTOR successor(s) in interest.

1.5 Type of Contract: Time and Material

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ARTICLE 2: TERM OF PERFORMANCE:

2.1 The term of this SUBCONTRACT will commence on the date this SUBCONTRACT is
bi-laterally signed and continue until one year after the date of the original
bi-lateral signatures. This SUBCONTRACT shall automatically renew for successive
one (1) year periods beginning on the anniversary date of the original term as
set forth. However, either party may terminate or amend this SUBCONTRACT by
giving the other party at least thirty (30) days prior written notice of such
amendments or intent not to renew. Any amendment pursuant to the foregoing shall
be deemed accepted only upon the written SUBCONTRACT of the other party.

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ARTICLE 3: COMPENSATION/TERMS OF PAYMENT:

3.1      As full consideration for the complete, satisfactory and timely
         performance by SUBCONTRACTOR of the Work contemplated by this
         SUBCONTRACT in strict accordance with the requirements hereof,
         CONTRACTOR shall pay to SUBCONTRACTOR as agreed upon in Exhibit B.

3.2      Amount of Subcontract: $1,000,000 Estimate

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ARTICLE 4: SUBCONTRACT DOCUMENTS:

4.1 This SUBCONTRACT shall consist of the following documents ("SUBCONTRACT
Documents") which are acknowledged by SUBCONTRACTOR and incorporated herein by
this reference:

[X]          EXHIBIT A- STATEMENT OF WORK
[X]          EXHIBIT B- PAYMENT SCHEDULE
[X]          EXHIBIT C- GENERAL CONDITIONS
[X]          EXHIBIT D- INSURANCE SPECIFICATIONS

4.2 This document and the documents referenced in sections 4.1 constitute the
entire SUBCONTRACT between CONTRACTOR and SUBCONTRACTOR and supersede all prior
and contemporaneous negotiations, statements, representations, SUBCONTRACTS,
letters of intent, awards, or proposals, either written or oral. This
SUBCONTRACT may be modified only by a written instrument signed by both parties.

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AGREED ON BEHALF OF Hi Energy

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SIGNATURE: /s/ Dr. Bogdan C. Maglich       DATE:

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PRINT NAME & TITLE Dr. Bogdan C. Maglich Chairman & Chief Scientist
-------------------------------------------------------------------

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4.3 In the event of any inconsistency between the provisions of the SUBCONTRACT
Documents, the inconsistency shall be resolved by giving precedence in the order
listed below.

         1 SUBCONTRACT Cover Page
         2 Exhibit A, Scope of Work
         3 Exhibit C, General Conditions

4.4 The Effective Date shall commence on the date this SUBCONTRACT is
bi-laterally signed and shall be the date as of which all SUBCONTRACT Documents
and provisions thereof have reference for purposes of coordination of their
meaning and effect. The price relates to the Work as described in the Contract
Document in their condition on that date.
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 AGREED ON BEHALF OF SIEMENS MAINTENANCE SERVICES, LLC:
 -----------------------------------------------------------------

 SIGNATURE: /s/ Dave Patterson        DATE:
 -----------------------------------------------------------------

 PRINT NAME & TITLE:  Dave Patterson, VP & General Manager

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<PAGE>

SIEMENS MAINTENANCE SERVICES, LLC
STATEMENT OF WORK  - EXHIBIT A

Article 1:        SCOPE OF WORK

1.1   The Work : The Work under this SUBCONTRACT shall be solely as described in
      this Article 1.

      1.1.1 SERVICES TO BE PERFORMED BY SUBCONTRACTOR: Installation, repair and
      preventive maintenance, including after market service, of Hi-Energy, Inc.
      products. SUBCONTRACTOR'S work shall include trouble-shooting, repair
      and/or replacement of electronic, mechanical, safety and / or general
      components of the equipment to meet or exceed manufacturers
      specifications.

      However, SUBCONTRACTOR repair(s) or maintenance will not extend beyond the
      product. This includes, but is not limited to flooring, ceilings,
      furniture, cabinets, supports, shells or fixtures supporting, surrounding
      or attached to the CONTRACTOR Equipment; or any electrical or
      communications wiring, ductwork, conduit, outlets, fixtures, backbones,
      distribution centers or devices attached to buildings, structures or other
      equipment.

      As the service arm for Hi-Energy, SUBCONTRACTOR shall have exclusive
      rights to the installation and maintenance of the Hi-Energy products. The
      foregoing sentence notwithstanding, nothing herein shall preclude
      CONTRACTOR from performing the same or similar services with its own
      employees or as otherwise contemplated by Article 1.4 of Service
      SUBCONTRACT No. 7600-04-C-0002.

1.2   TRAINING: CONTRACTOR will supply to SUBCONTRACTOR equipment training and
      certifications to maintain and repair security door products as defined in
      1.1.1 of Exhibit A on CONTRACTOR'S Products.

      1.2.1 CONTRACTOR will provide equipment training, certifications and
      technical information as required and SUBCONTRACTOR will treat this
      information as strictly confidential information. CONTRACTOR shall conduct
      up to 8 regional training sessions at sites to be reasonably agreed upon
      by and between CONTRACTOR and SUBCONTRACTOR. SUBCONTRACTOR shall bear all
      costs and expenses for the regional sites and for its employees and/or
      hirees attending the training sessions.

      1.2.2 CONTRACTOR will provide equipment, training, certifications, and
            technical information for SUBCONTRACTOR to perform work to the
            following designated levels.

            1.2.2.1 Level 1: Operating the Equipment Training

            This will include training, training documentation and
            specifications required to operate the basic functions of the
            specific product.

            1.2.2.2 Level 2: Visual, Mechanical and Electronics maintenance and
            repair

            This will include training, training documents and specifications
            required to do visual, mechanical and electrical inspection,
            troubleshooting and replacement of appropriate parts.(I.E. Powering
            up equipment, PC board sub assemblies and power supplies).
            SUBCONTRACTOR shall be obligated to supply its employees, agents and
            assigns with the necessary equipment to carry out its duties under
            this SUBCONTRACT

            1.2.2.3 Level 3: Technical Field Verification

            This will include all training, training documents and
            specifications required to perform Field Verifications and all
            associated calibrations of CONTRACTOR'S Products. SUBCONTRACTOR
            shall be obligated to supply its employees, agents and assigns with
            the necessary equipment to carry out its duties under this
            SUBCONTRACT.

      1.2.3 Training Schedule shall be agreed upon by both parties with enough
            advanced notice to make reasonable travel and accommodation
            arrangements.

            1.2.3.1 CONTRACTOR will provide training and technical information
            to SUBCONTRACTOR for Level 1, Level 2 and Level 3 as defined in
            1.2.2.1, 1.2.2.2. and 1.2.2.3 as mutually agreed to by both parties.

      1.2.4 Limitations

            1.2.4.1 Notwithstanding the foregoing, CONTRACTOR shall be obligated
      only to provide one Master set of training documentation and
      specifications and technical information in satisfaction of its
      obligations set forth in 1.2.1 and the provisions there under.
      SUBCONTRACTOR will be obligated to reproduce all such materials at its own
      expense to outfit properly its employees, agents and assigns. All expenses
      of attending any training session conducted by or for CONTRACTOR shall be
      borne by SUBCONTRACTOR.

                                       2
<PAGE>

1.3   TECHNICAL SUPPORT: CONTRACTOR will provide telephone technical support on
      a 24/7/365 basis.

1.4   PARTS: Repair, replacement or consumable parts (collectively "CONTRACTOR
      Parts") necessary or advisable to perform the above described services
      shall be procured and provided to SUBCONTRACTOR by CONTRACTOR in such
      reasonable quantities and within such time as shall allow SUBCONTRACTOR to
      accomplish its obligations under this SUBCONTRACT.

      1.4.1 CONTRACTOR shall provide parts to SUBCONTRACTOR on a consignment
            basis. SUBCONTRACTOR will maintain the appropriate controls and
            processes to maintain the CONTRACTOR Parts in like new condition.

      1.4.2 CONTRACTOR will provide a recommended list of CONTRACTOR Parts to
            SUBCONTRACTOR.

            1.4.2.1 CONTRACTOR shall forward maintenance parts by overnight
                  FedEx or similar service as coordinated by the parties. The
                  parties shall jointly review this program at least annually to
                  consider any changes that may be necessary or advisable to
                  accomplish the intents and purposes of this SUBCONTRACT.

            1.4.2.2 CONTRACTOR will assume all responsibility for shipment of
                  product (whole unit & piece parts) to include the packaging,
                  crating and transportation to and from each installation site.

Article 2:        ENGAGEMENT OF SMS

      2.1   SMS shall commence work based upon authorization from the
            appropriate CONTRACTOR representative and all work performed will be
            in respect to the terms and conditions of this SUBCONTRACT.

      2.2   Authorization will consist of a numbered work order issued to SMS to
            commence work and the number of the work order must be included on
            SMS's invoices.

      2.3   Contractor is engaged and will continue to train SMS Technicians in
            the servicing and maintenance of the Contractor products. SMS agrees
            that once the technicians are trained they will not commence work on
            any CONTRACTOR equipment unless authorized be appropriate CONTRACTOR
            representatives.

                                       3
<PAGE>

SIEMENS MAINTENANCE SERVICES, LLC
PAYMENT SCHEDULE  - EXHIBIT B

Article: 1.0      SUBCONTRACT PRICE

CONTRACTOR agrees to pay SUBCONTRACTOR in accordance with the following
schedule:

      1.1   Labor shall be paid to SUBCONTRACTOR at $88.00 per hour. All other
            labor rates for overtime, holidays, etc. shall be based off this
            rate.

      1.2   CONTRACTOR agrees to provide trainer(s) and training material at no
            cost to SUBCONTRACTOR. SUBCONTRACTOR will pay for expenses to send
            Technicians to training site.

      1.3   Travel and Expenses will be billed at Cost plus 10% for
            administration.

Article: 2.0      INVOICES

      2.1   Properly completed invoices will be payable within 30 days of
            receipt . Invoices should be sent to:

                           Hi Energy Technologies
                           Attn: Accounts Payable
                           1601 B. Alton Parkway
                           Irvine, CA 92606

                                       4
<PAGE>

SIEMENS MAINTENANCE SERVICES, LLC
GENERAL CONDITIONS - EXHIBIT C

Article 1:  General

1.1 (a) The SUBCONTRACT constitutes the entire, complete and exclusive
SUBCONTRACT between the parties relating to the services to be provided by
SUBCONTRACTOR as described in Exhibit A (such services collectively referred to
as "Work") and shall supersede and cancel all prior SUBCONTRACTS and
understandings, written or oral, relating to the subject matter of the
SUBCONTRACT. Neither party may assign the SUBCONTRACT or any rights or
obligations hereunder without the prior written consent of the other, which
consent shall not be unreasonably withheld, except that either party may assign
this SUBCONTRACT to its affiliates, successors and/or assigns and either party
may grant a security interest in the SUBCONTRACT; assign proceeds of the
SUBCONTRACT; and/or use subcontractors in performance of the Work.

(b) The terms and conditions of this SUBCONTRACT shall not be modified or
rescinded except in writing, signed by an authorized representative of
CONTRACTOR and SUBCONTRACTOR. SUBCONTRACTOR' and CONTRACTOR'S performance under
this SUBCONTRACT is expressly conditioned on the terms of this SUBCONTRACT,
notwithstanding any different or additional terms contained in any writing at
any time submitted or to be submitted to SUBCONTRACTOR by CONTRACTOR relating to
the Work.

(c) Nothing contained in this SUBCONTRACT shall be construed to give any rights
or benefits to anyone other than the CONTRACTOR and SUBCONTRACTOR without the
express written consent of both parties. All provisions of this SUBCONTRACT
allocating responsibility or liability between the parties shall survive the
completion of the Work and termination of this SUBCONTRACT. 1.2 In the event of
a dispute between the parties, SUBCONTRACTOR agrees to continue to perform it's
Work under protest provided CONTRACTOR continues to pay for Work not in dispute.
SUBCONTRACTOR shall perform all other work under this SUBCONTRACT and all other
rights and duties between the parties shall continue.

Article 2:  SERVICES BY SUBCONTRACTOR

2.1 SUBCONTRACTOR will perform the Work expressly described in this SUBCONTRACT
and in any work release documents or change orders that are issued under this
SUBCONTRACT and signed by both parties. The Work performed by SUBCONTRACTOR
shall be conducted in a manner consistent with the degree of care and skill
ordinarily exercised by reputable companies performing the same or similar Work
in the same locale acting under similar circumstances and conditions.

2.2 SUBCONTRACTOR is not required to conduct safety, reacceptance or other
tests, install new devices or equipment or make modifications to any Equipment
beyond the Scope set forth in this SUBCONTRACT. Any CONTRACTOR request to change
the Scope or the nature of the Work must be in the form of a mutually agreed
change order, effective only when executed by all parties hereto.

2.3 CONTRACTOR acknowledges that SUBCONTRACTOR, in the normal conduct of its
business, may use concepts and improved skills and know-how developed while
performing other contracts. CONTRACTOR acknowledges the benefit which may accrue
to it though this practice, and accordingly agrees that anything in this
SUBCONTRACT notwithstanding SUBCONTRACTOR may continue, without payment of a
royalty, this practice of using concepts and improved skills and know-how
developed while performing this SUBCONTRACT. SUBCONTRACTOR shall be responsible
for any portion of the Work performed by any subcontractor of SUBCONTRACTOR.
CONTRACTOR shall not have any responsibility, duty or authority to direct,
supervise or oversee any employees or contractors of SUBCONTRACTOR or their work
or to provide the means, methods or sequence of their work or to stop their
work. SUBCONTRACTOR' work and/or presence at a site shall not relieve others of
their responsibility to CONTRACTOR or to others. SUBCONTRACTOR shall not be
liable for the failure of CONTRACTOR'S employees, contractors or others to
fulfill their responsibilities, and CONTRACTOR agrees to indemnify, hold
harmless and defend SUBCONTRACTOR against any claims arising out of such
failures. CONTRACTOR shall not be liable for the failure of SUBCONTRACTOR'
employees, contractors or others to fulfill their responsibilities, and
SUBCONTRACTOR agrees to indemnify, hold harmless and defend CONTRACTOR against
any claims arising out of such failures. SUBCONTRACTOR shall not delegate or
assign any of its responsibilities under this SUBCONTRACT to any other party
without CONTRACTOR'S prior written consent.

Article 3:  PREFERRED PROVIDER

The parties hereby agree that SUBCONTRACTOR shall be the Exclusive Service
Provider to CONTRACTOR for the current products and additional products for the
term of this SUBCONTRACT, including any extensions hereof. The foregoing
sentence notwithstanding, nothing herein shall preclude CONTRACTOR from
performing the same or similar services with its own employees. SUBCONTRACTOR'S
services include, but are not limited to, repair, maintenance and installation.
In the event that SUBCONTRACTOR can not or does not meet a specific
service/maintenance requirement and CONTRACTOR must either self perform or
dispatch a third party, CONTRACTOR agrees to notify SUBCONTRACTOR, in writing,
so that SUBCONTRACTOR can take the proper steps to rectify the situation in
order to perform said service in the future.

Article 4: RESPONSIBILITIES OF CONTRACTOR 4.1 CONTRACTOR without cost to the
SUBCONTRACTOR shall:

(a) Designate a contact person with authority to make decisions for CONTRACTOR
regarding the Work and provide SUBCONTRACTOR with information sufficient to
contact such person in an emergency;

(b) Provide required equipment training, training facilities, training
materials, certifications and required refresher training as may be reasonably
necessary or advisable to enable SUBCONTRACTOR to perform the Work in Exhibit A.

(c) Provide or arrange for 24 hour, 7 day per week access and make reasonable
provisions for SUBCONTRACTOR to enter a Site where Work is to be performed.

(d) If applicable, Furnish SUBCONTRACTOR with blueprints, surveys, legal
descriptions, waste management plans, Material Safety Data Sheets (MSDS) and all
other available information pertinent to the Work and any site where the Work is
to be performed as may be reasonably requested by SUBCONTRACTOR.

(e) Promptly notify SUBCONTRACTOR of any unusual or materially changed operating
conditions, hours of usage, system malfunctions or building alterations of which
CONTRACTOR is aware and that may affect the Work.

(f) Comply with all laws and provide any notices required to be given to any
government authorities in connection with the Work, except such notices
SUBCONTRACTOR has expressly agreed in writing to give; and provide to
SUBCONTRACTOR the training and CONTRACTOR Parts provided for in Exhibit A.

Article 5:  COMMUNICATIONS & NOTICES

5.1 All inquiries SUBCONTRACTOR may have concerning this SUBCONTRACT shall be
made to CONTRACTOR.

5.2 Notices of changes, deficiencies, delays, claims or disputes shall be in
writing delivered within 20 business days of occurrence or discovery of same,
and shall furnish full information to the extent available. The party notified
will acknowledge receipt by endorsement of a copy if requested or will otherwise
confirm receipt in writing. Sufficient Notice shall be deemed to have been given
if made by express courier or mailing via Registered or Certified Mail postage
prepaid to the address shown on page 1 of this SUBCONTRACT.

5.3 Neither party shall use or release any advertisement, notice, press release
or publicity depicting or describing the Work of SUBCONTRACTOR, CONTRACTOR or
Customer at any time, whether before, during or after completion of the Work,
without the express prior written consent of the other parties. Such consent
shall not be unreasonably withheld by any of the parties.

Article 6:  CHANGES

6.1 As the Work is performed, conditions may change or circumstances outside
SUBCONTRACTOR' reasonable control (including changes of law) may develop which
requires SUBCONTRACTOR to incur or expend additional costs, effort or time to
complete the Work, in which case SUBCONTRACTOR will notify CONTRACTOR and an
equitable adjustment will be made to the compensation and time for performance.
In the event conditions or circumstances require Work to be suspended or
terminated, SUBCONTRACTOR shall be compensated for Work performed and for costs
reasonably incurred in connection with the suspension or termination.

Article 7: COMPENSATION

7.1 SUBCONTRACTOR shall be compensated for the Work as set forth in Exhibit B.

7.2 SUBCONTRACTOR shall invoice CONTRACTOR as provided in Exhibit B. Invoices
are and payable within 30 calendar days of receipt by CONTRACTOR or as otherwise
set forth in Exhibit B. If any proper payment is not received within thirty days
after the date of the applicable invoice, SUBCONTRACTOR may deem CONTRACTOR to
be in breach hereof and may enforce any remedies available to it hereunder or at
law. Any amount not paid past 15 days of the date due shall accrue interest from
the date due, until paid, at the then applicable Treasury rate. CONTRACTOR shall
reimburse SUBCONTRACTOR SUB-CONTRACTOR'S costs and expenses (including
reasonable attorneys' and witnesses' fees) incurred for collection under this
SUBCONTRACT. In the event CONTRACTOR questions any portion or all of an invoice,
it shall notify SUBCONTRACTOR in writing of the amount in question and the
reason for its disagreement within 21 days of receipt of the invoice. The
unquestioned portion shall be paid when due. No interest shall accrue on any
unpaid portion so long as such amounts relate to improperly prepared invoice(s).

7.3 Except to the extent expressly agreed in herein, SUBCONTRACTOR'S fees do not
include any taxes, excises, fees, duties or other government charges related to
the Work, and CONTRACTOR shall pay such amounts or reimburse SUBCONTRACTOR for
any amounts it pays. If CONTRACTOR claims a tax exemption or direct payment
permit, it shall provide SUBCONTRACTOR with a valid exemption certificate or
permit and indemnify, defend and hold SUBCONTRACTOR harmless from any taxes,
costs and penalties arising out of same.

                                       5
<PAGE>

Article 8:  CONFIDENTIAL AND/OR PROPRIETARY INFORMATION

8.1 Each party acknowledges that it will have access to, be making use of,
acquiring and/or adding to confidential business information of special and
unique value including, but not limited to, trade secrets of the other party, in
connection with provision of the services under this SUBCONTRACT (collectively,
the "Confidential Information"). The parties agree that neither party will,
during or after the Term, copy, disclose, distribute or make use of any
Confidential Information for its own benefit or for the benefit of a business or
entity other than the other party to this SUBCONTRACT without the prior written
consent of such party and shall maintain the confidentiality of the Confidential
Information. At the request of the disclosing party, the receiving party shall
return to the disclosing party all memoranda, notes, copies, drawings,
abstracts, records or other documents, and all copies thereof, concerning any
Confidential Information. Subject to applicable laws, the provisions of the
confidential treatment of the Confidential Information shall not apply to any
such information which is (i) or becomes publicly known through no wrongful act
of the receiving party; (ii) rightly received by the receiving party from a
third party; (iii) approved for such use or disclosure by the disclosing party
in writing; (iv) independently developed by the receiving party; or (v) required
to be disclosed to any governmental agency or is required by any subpoena,
summons, order or other judicial process, provided however that the receiving
party shall give at least fourteen days written notice to the other party prior
to disclosing such information.

8.2 CONTRACTOR and SUBCONTRACTOR shall ensure that each of its employees,
independent contractors and/or subcontractors privy to this SUBCONTRACT or
involved in any way with this SUBCONTRACT shall comply with the obligations of
confidentiality imposed by this Section. In applicable situations, SUBCONTRACTOR
will execute a confidentiality SUBCONTRACT with independent contractors and/or
subcontractors, which will provide CONTRACTOR the full protection of information
as provided herein. SUBCONTRACTOR shall be fully responsible for the actions of
its employees, independent contractors, and subcontractors. Use of
subcontractors or independent contractors to perform work related to this
SUBCONTRACT shall be subject to CONTRACTOR'S prior written approval.

8.3 The provisions of this Section shall survive the termination or expiration
of this SUBCONTRACT.

Article 9:  FORCE MAJEURE

9.1 Neither party shall be responsible for loss, delay, injury, damage or
failure of performance that may be caused by circumstances beyond its control,
including but not limited to Acts of God, war, civil commotion, terrorism, acts
or omissions of government authorities, fire, theft, corrosion, flood, water In
the event of damage, lightning, freeze-ups, strikes, lockouts, riots,
explosions, quarantine restrictions, delays in transportation. Any such
circumstances, CONTRACTOR or SUBCONTRACTOR, as the case may be, shall be excused
from performance of the Work and the time for performance shall be extended by a
period equal to the time lost plus a reasonable recovery period.

Article 10:  ALLOCATION OF RISK

10.1 SUBCONTRACTOR shall indemnify, defend and hold CONTRACTOR, Customer and
each of their respective affiliates. and all of their respective employees,
agents harmless from any and all losses, damages, settlements, costs, charges,
expenses or liabilities of every kind or character, including reasonable
attorneys' and witness' fees and other costs of defense and settlement, arising
out of or relating to any and all claims, liabilities, losses, fines, penalties,
liens, demands, obligations, actions, proceedings, or causes of action of every
kind arising, including but not limited to death or injury to any person,
destruction or damage to any property, or contamination or adverse effect upon
natural resources or the environment, arising, in whole or part, out of any, but
only to the extent caused directly by: (1) failure of SUBCONTRACTOR, its
employees, agents or subcontractors to comply with any law, ordinance,
regulation, rule or order of any governmental or regulatory body including those
dealings with health, safety or the environment; (2) improper, substandard, or
inadequate performance or non-performance of this SUBCONTRACT, including any
submission of deficient cost or pricing data; or (3) any negligent or wrongful
act or omission of SUBCONTRACTOR, its employees, agents, suppliers or
subcontractors.

10.2 Anything herein notwithstanding, in no event shall either party be
responsible under this SUBCONTRACT for incidental, consequential, punitive,
exemplary or special damages, including without limitation lost profits, loss of
use and/or lost business opportunities, whether arising in warranty, late or
non-delivery of any Work, tort, contract or strict liability, and regardless of
whether either party has been advised of the possibility of such damages.

10.3 In any event, SUBCONTRACTOR' aggregate liability for any and all claims,
losses or expenses (including attorneys fees) arising out of this SUBCONTRACT,
or out of any Work furnished under this SUBCONTRACT, whether based in contract,
negligence, strict liability, agency, warranty, trespass, indemnity or any other
theory of liability, shall be limited to the lesser of $1,000,000 or the total
compensation received by SUBCONTRACTOR from CONTRACTOR under this SUBCONTRACT.
SUBCONTRACTOR reserves the right to control the defense and settlement of any
claim for which CONTRACTOR has an obligation to indemnify hereunder.

10.4 SUBCONTRACTOR'S limitations of liability in the Sections 10.2 and 10.3
above shall not apply to claims arising out of the breach of confidentiality
obligations under Section 8 herein or claims arising from gross negligence or
willful misconduct of SUBCONTRACTOR.

Article 11:  LIMITATIONS OF MAINTENANCE OR SERVICE OBLIGATIONS

11.1 SUBCONTRACTOR will not be responsible for the maintenance, repair or
replacement of, or Services necessitated by reason of: (a) non-maintainable,
non-replaceable, or obsolete parts of the Equipment, or (b) negligence, abuse,
misuse, improper or inadequate repairs or modifications, improper operation,
lack of operator maintenance or skill, corrosion, erosion, improper or
inadequate service by others, electrolytic action, chemical action, failure to
comply with manufacturer's operating and environmental requirements, Acts of
God, or other reasons beyond its control. SUBCONTRACTOR assumes no
responsibility for any service performed on any Equipment other than by
SUBCONTRACTOR or its agents.

Article 12:  PROPRIETARY RIGHTS

12.1 CONTRACTOR and SUBCONTRACTOR shall mutually defend, indemnify and hold each
other their, Customers and each of their respective affiliates, and all of their
respective employees, agents harmless from any and all losses, damages,
settlements, costs, charges, expenses or liabilities of every kind or character,
including reasonable attorney's and witness fees and other costs of defense and
settlement, arising out of or relating to any claim of infringement of any
patent, copyright of proprietary right involving any Work furnished hereunder

Article 13:  EMPLOYMENT PRACTICES

13.1 SUBCONTRACTOR shall not discriminate against any employee or applicant for
employment because of race, color, religion, sex, national origin, age or any
reason prohibited by law. SUBCONTRACTOR shall comply with Executive Order 11246,
or any amendment, replacement or counterpart thereof. Both CONTRACTOR and
SUBCONTRACTOR agree to not recruit or hire the employees of the other party
without express, written concurrence from the signatory of the other party. This
provision shall apply for a period of 24 months after the end of this
SUBCONTRACT.

Article 14:  WARRANTY

14.1 SUBCONTRACTOR warrants that labor for all Work under this SUBCONTRACT is
warranted to be free from defects in workmanship for 30 days after the work is
performed. 14.1.1(a) The limited warranties set forth above shall be void as to,
and shall not apply to, any Work (i) repaired or altered by any person other
than SUBCONTRACTOR or its authorized representative; or (ii) subjected to
unreasonable or improper use or storage operated other than per CONTRACTOR'S or
the manufacturer's instructions, or otherwise subjected to improper maintenance,
negligence or accident;.

(b) Any claim under the limited warranty granted above must be made in writing
to SUBCONTRACTOR within thirty (30) days after discovery of the claimed defect.
Such limited warranty only extends to CONTRACTOR and not to any subsequent owner
of the Work. In addition to any other remedies CONTRACTOR may have under this
SUBCONTRACT, at law or in equity, for any Work not conforming with this limited
warranty is limited to, at CONTRACTOR'S option, CONTRACTOR may require
re-performance of the defective portion of the Work, or, to the extent
previously paid, the issuance of a credit or refund for the original purchase
price of such defective component or potion of the Work not to exceed $10,000.

Article 15:  INSURANCE

15.1 At all times during the term of this SUBCONTRACT, SUBCONTRACTOR shall
provide and maintain the insurance required by Exhibit D. SUBCONTRACTOR shall
not be required or otherwise obligated to perform any Work unless and until such
insurance is in place and confirmed to CONTRACTOR in writing by an original
Certificate of Insurance conforming with Exhibit D, if requested by the
CONTRACTOR.

Article 16:  HEADINGS AND SEVERABILITY

16.1 The headings in the SUBCONTRACT, Exhibits and attachments thereto are for
quick reference only and are not to be construed as a part of this SUBCONTRACT.

16.2 If any provision of this SUBCONTRACT is determined to be invalid under any
applicable law, such decision shall not affect the remaining portion, which
remaining portion shall continue in full force and effect as if it had been
executed with the invalid portion eliminated.

                                       6
<PAGE>

Article 17: HAZARDOUS MATERIALS

17.1 The Work does not include directly or indirectly performing or arranging
for the detection, testing, handling, storage, removal, treatment,
transportation, disposal, monitoring, abatement or remediation of any
contamination of any Site at which Work is performed Except as expressly
disclosed pursuant to this Article, CONTRACTOR represents and warrants that
there are no Hazardous Materials present at locations where the Work is to be
performed. SUBCONTRACTOR will notify CONTRACTOR immediately if it discovers or
reasonably suspects the presence of any previously undisclosed Hazardous
Material. All Work has been priced and agreed to by SUBCONTRACTOR in reliance on
CONTRACTOR'S representations as set forth in this Article. The discovery or
reasonable suspicion of Hazardous Materials or hazardous conditions at a Site
where SUBCONTRACTOR is to perform Work or Hazardous Materials not previously
disclosed pursuant to this Article shall entitle SUBCONTRACTOR to suspend the
Work immediately, subject to mutual SUBCONTRACT of terms and conditions
applicable to any further Work, or to terminate the Work and to be paid for Work
previously performed.

17.2 CONTRACTOR warrants that, prior to the execution of the SUBCONTRACT, it
notified SUBCONTRACTOR in writing of any and all Hazardous Materials present,
potentially present or likely to become present at the Site and provided a copy
of any Site safety policies and information, including but not limited to
lock-out and tag procedures, chemical hygiene plan, material safety data sheets,
and other items covered or required to be disclosed or maintained by federal,
state, or local laws, regulations or ordinances.

17.3 Regardless of whether or not the Hazardous Material was disclosed pursuant
to this Article, CONTRACTOR shall be solely responsible for properly testing,
abating, encapsulating, removing, disposing, remedying or neutralizing such
Hazardous Materials, and for the costs thereof. Even if an appropriate change
order has been entered into pursuant to this Article, SUBCONTRACTOR shall have
the right to stop the Work until the Site is free from Hazardous Materials. In
such event, SUBCONTRACTOR will receive an equitable extension of time to
complete the Work, and compensation for delays caused by Hazardous Materials
remediation. In no event shall SUBCONTRACTOR be required or construed to take
title, ownership or responsibility for such Hazardous Materials. SUBCONTRACTOR
shall sign any required waste manifests in conformance with all government
regulations, listing CONTRACTOR as the generator of the waste. If someone other
than CONTRACTOR is the generator of the waste, CONTRACTOR shall arrange for such
other person to sign such manifests.

17.4 In accordance herewith, the CONTRACTOR has expressly disclosed and the
SUBCONTRACTOR acknowledges that the CONTRACTOR'S products contain a sealed
source radiation device that is considered hazardous materials.

                                       7
<PAGE>

SIEMENS MAINTENANCE SERVICES, LLC
INSURANCE SPECIFICATIONS - EXHIBIT D

Unless otherwise specified in this SUBCONTRACT, the SUBCONTRACTOR shall, at its
sole expense, maintain in effect at all times during performance of the Work
insurance coverage with limits as set forth below with insurers and in forms of
policies satisfactory to CONTRACTOR.

Article 1:  COVERAGES:

1.1 WORKER'S COMPENSATION INSURANCE

Minimum Amounts and Limits as prescribed by applicable law. If there is an
exposure of injury to SUBCONTRACTOR'S employee under the U.S. Longshoremen's and
Harbor Worker's Compensation Act, the Jones Act or under laws, regulation or
statutes applicable to maritime employees, coverage shall be provided for same.

1.2 EMPLOYER'S LIABILITY INSURANCE (AND, WHERE APPLICABLE, STOP GAP EXTENDED
PROTECTION ENDORSEMENT) Limits of liability shall be:

         $1,000,000 per occurrence  $1,000,000 Each Employee

1.3 GENERAL LIABILITY INSURANCE

(a)   SUBCONTRACTOR shall carry, in the Occurrence Coverage Form, Comprehensive
      General Liability or Commercial General Liability, insurance covering all
      operations by or on behalf of the SUBCONTRACTOR providing insurance for
      bodily injury and property damage with limits of liability stated below
      and including coverage for:

o     Products and Completed Operations

o     Contractual Liability insuring the obligations assumed by the
      SUBCONTRACTOR in this SUBCONTRACT

o     Broad Form Property Damage (including Completed Operations)

o     Installation Floater or Builders All Risk coverage

o     Explosion, Collapse and Underground Hazards

o     Personal Injury Liability

(b)   Limits of Liability shall be:

(1)   If Comprehensive General Liability insurance, limits of liability shall
      be: $1,000,000 Each Occurrence & Aggregate

(2)   If Commercial General Liability insurance, the limits of liability shall
      be: $1,000,000 Each Occurrence Limit $1,000,000 Personal Injury Limit

Article 2: SUBCONTRACT WORK COVERAGE

2.1 SUBCONTRACTOR is maintaining insurance on behalf of CONTRACTOR insuring
against loss or damage to the Work or to any other property of CONTRACTOR unless
otherwise specifically stated herein. If SUBCONTRACTOR maintains insurance
against physical loss or damage to SUBCONTRACTOR'S equipment and tools, such
insurance shall include a waiver of subrogation rights in favor of CONTRACTOR,
and their respective subsidiaries, affiliates, officers, directors and
employees.

Article 3: NON-LIMITATION OF LIABILITY

3.1 The requirements contained herein as to types and limits, as well as
CONTRACTOR'S approval of insurance coverage to be maintained by SUBCONTRACTOR
are not intended to and shall not in any manner limit or qualify the liabilities
and obligations assumed by SUBCONTRACTOR under the SUBCONTRACT and are not
intended as a statement or recommendation of the adequacy of insurance
coverage's to be maintained by the SUBCONTRACTOR.

Article 4: ADDITIONAL INSURED STATUS

4.1 CONTRACTOR, and their respective subsidiaries, or affiliates, officers,
directors and employees shall be endorsed as Named Additional Insured's under
all insurance policies and coverage's maintained by or required to be maintained
by SUBCONTRACTOR pursuant to the SUBCONTRACT, excluding only Worker's
Compensation and Employer's Liability policies. Each policy shall provide that
it is primary insurance as regards the named additional insured's and contain a
cross-liability or severability of interest clause.

Article 5: WAIVER OF SUBROGATION

5.1 Each of the insurance policies and coverage's maintained by or required to
be maintained by SUBCONTRACTOR by this SUBCONTRACT, without exception, shall
contain a waiver of subrogation in favor of CONTRACTOR and their respective
subsidiaries, affiliates, officers, directors and employees to the extent
permitted by the terms of the respective insurance policies without additional
premium to be paid by SUBCONTRACTOR.

Article 6: CERTIFICATES OF INSURANCE

6.1 The SUBCONTRACTOR shall deliver signed original Certificates of Insurance to
CONTRACTOR within ten (10) days of request from the CONTRACTOR as evidence that
policies providing such coverage and limits of insurance are in full force and
effect. Failure to deliver the required insurance certificates shall be grounds
for termination of the SUBCONTRACT without further notice by CONTRACTOR or at
CONTRACTOR'S sole election, CONTRACTOR may obtain the necessary coverage at
SUBCONTRACTOR'S expense, the cost of which shall be offset against any sums
owing or to be owed by CONTRACTOR to SUBCONTRACTOR. Certificates shall provide
that not less than thirty (30) days advance notice will be given in writing to
CONTRACTOR prior to cancellation, termination or material alteration of said
policies of insurance. Certificates shall identify on their face the SUBCONTRACT
TITLE and the applicable SUBCONTRACT Number. Each insurance certificate shall
require that the insurance company provide 30 days advance notice to CONTRACTOR
of any cancellation of or material change in the policy or coverage's identified
on the certificate and provided by the insurer.

Article 7: BEST RATING

7.1 All insurance companies must be "BEST's" rated "A" or better; qualified to
do business in the state of the Work; and otherwise acceptable to CONTRACTOR.

Article 8: NON-WAIVER

8.1 Receipt or failure to receive any Certificate of Insurance for any of the
required insurance coverage's and limits shall not act or be construed as an
approval of SUBCONTRACTOR'S insurance or as a release or waiver of
SUBCONTRACTOR'S obligation to provide any or all of the insurance coverage's and
limits required herein. No delay or failure in declaring any default or in
enforcing any such requirements, and no course of dealings between the
CONTRACTOR and the SUBCONTRACTOR, or any other person or entity shall constitute
a waiver of any requirement, or in any way or manner prejudice, impair, diminish
or restrict any right, power or remedy available to CONTRACTOR.

Article 9: CERTIFICATE DELIVERY

9.1 The SUBCONTRACTOR shall deliver the original of the Certificate of
Insurance, naming CONTRACTOR as the Certificate Holder, to the CONTRACTOR'S
Designated Representative.

                                       8

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