AGREEMENT, made as of the 7 day of March, 1991.
                                     between
INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION, INC., a North Carolina Non-Profit
Corporation  with  offices  at ▇▇▇▇  ▇▇▇▇▇▇▇▇  ▇▇▇▇▇▇▇,  Post  Office Box 12036,
Research ▇▇▇▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ("Sponsor").
                                       and
SOLMECS  (ISRAEL) LTD,  corporation  with offices at ▇▇▇▇ ▇▇▇▇▇▇,  ▇▇▇▇▇ ▇▇▇, ▇▇
▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇, Israel ("Contractor");
     WHEREAS,  Sponsor  desired  Contractor to carry out the program of research
(hereinafter  called the "Project"),  set forth in  contractor's  proposal dated
June 1990,  attached hereto as Exhibit A and made a part hereof,  and Contractor
is willing and able to perform such work, identified as:
                LM-391, Use of Lead in LMMHD Cogeneration Systems
     NOW, THEREFORE, the parties agree as follows:
1.   Research on Project
     (a) Contractor  shall initiate and carry out the Project in accordance with
the provisions of Exhibit A and shall provide laboratory facilities,  equipment,
materials,  personnel and supervision,  all as set forth in Exhibit A. If at any
time  during  the  term of  this  Agreement,  Contractor  becomes  aware  of any
impending  change of  personnel  assigned to the Project,  for whatever  reason,
Contractor  will  immediately  notify  Sponsor  of  the  impending  change,  and
furthermore, will notify Sponsor of the name(s) and duties of the new personnel,
so assigned,  as soon as this  information is known to  Contractor.  Work on the
Project  shall  begin with three (3)  months of the date of this  Agreement  and
Contractor shall promptly notify Sponsor of the date when work begins.
     (b) All work done by contractor,  and all  employment  and other  contracts
made by Contractor,  in the  performance of this Agreement shall be done or made
by it as principal,  and not as the agent of Sponsor, and Sponsor shall not have
any liability  whatsoever  for any such work or under any such  contracts or for
the payment of any claims made by any person on account of any  property  damage
or personal  injury arising out of  Contractor's  performance of this Agreement.
Contractor  shall discharge the duties and obligations of principal with respect
to such work and such contracts,  including, but not limited to, the withholding
and payment of all  applicable  taxes and the filing of all  necessary  returns.
Upon Sponsor's request,  Contractor at its own expense will defend any action or
claim brought or made by any person against  Sponsor arising out of Contractor's
performance  of this  Agreement,  provided  that Sponsor shall have the right to
participate  through  counsel of its choice in the defense  thereof.  Contractor
will hold Sponsor harmless from any and all damages,  costs or other liabilities
incurred  by  Sponsor as the result of the  bringing  of any such  action or the
assertion of any such claim, including Sponsor's reasonable attorney's fees.
                                        1
2.   Subcontracting
     With the prior  written  approval of Sponsor's  President,  Contractor  may
subcontract all or any part of the work on the Project to a  subcontractor.  Any
subcontract shall contain provisions, substantially similar to the provisions of
this  Agreement,  protecting  all of  Sponsor's  rights  under  this  Agreement,
including, without limitation, provisions substantially similar to paragraph (b)
of Section 5 and Sections 6, 9, 12, 14, and 15.  However,  no subcontract  shall
relieve Contractor of any of its obligations under this Agreement.
3.   Terms and Termination
     (a) This Agreement  shall terminate one (1) year from the date when work on
the Project begins,  unless  terminated  earlier as provided in Paragraph (b) of
this Section 3, or renewed as provided in Section 4.
     (b) Either party may terminate  this  Agreement at any time upon sixty (60)
days' prior written notice to the other party.
     (c)  Termination of this Agreement shall bring an end to the Project and to
Sponsor's  obligation to reimburse  Contractor for costs of the Project incurred
thereafter. It shall not, however, affect rights and obligations already accrued
or  clearly  intended  to  survive,  including,  without  limitation,  Sponsor's
obligation  under  paragraph  (a) Section 5 to  reimburse  Contractor  for costs
theretofore  incurred and Sponsor's  rights and Contractor's  obligations  under
paragraph  (b) of Section 1,  paragraph (b) of Section 5, and Sections 6, 9, 12,
13, 14, 15, and 17 all of which shall survive.
4.   Renewal
     If this Agreement has not theretofore been terminated pursuant to paragraph
(b) of Section 3, Contractor  shall,  not later than June 1 of the year in which
the Agreement, or any renewal thereof is to terminate, advise Sponsor in writing
as to the  desirability of doing further  research work on the subject matter of
the  Project.  If  further  work is  recommended,  the  recommendation  shall be
accompanied by a formal proposal for renewal of this Agreement, setting forth in
detail the  additional  work  recommended,  the time  required and the estimated
costs of  performing  the  recommended  work.  Sponsor  may accept  the  renewal
proposal by notifying the  Contractor in writing prior to the  expiration of the
original term of the contract or any subsequent  renewal period,  whereupon this
Agreement  shall be renewed and  extended  for the term  provided in the renewal
proposal or for one year,  whichever is less.  All terms and  conditions of this
Agreement  shall apply during any renewal  term,  except that during the renewal
term (i) the  expression  "Exhibit  A" as used  herein  shall  mean the  renewal
proposal, (ii) the expression "Project" as used herein shall mean the program of
research set forth in the renewal  proposal and (iii) Sponsor's  liability under
Section 5 to reimburse  Contractor  for costs  incurred  during the renewal term
shall not exceed the dollar  limit  stated in  Sponsor's  letter  accepting  the
renewal proposal.
5.   Costs
     (a) Sponsor shall  reimburse  Contractor for the costs of the Project up to
but  not  exceeding  a total  of  $387,229.  Contractor  shall  render  itemized
invoices,  quarterly,  for the  costs  actually  incurred  during  the  previous
quarter,  and Sponsor shall pay invoices  promptly upon  presentation,  provided
that Sponsor shall not be required to pay any invoice until any reports under
                                        2
Section  13 due at the time the  invoice  is  rendered  have been  submitted  to
Sponsor. Payment schedule:
                                  $100,00 each in 1991 and 1992
                                  $85,000 in 1993
                                  $50,000 in 1994
                                  $52,229 in 1995
     (b)  Contractor  shall  keep  books of  account  showing  all  costs of the
project,  which shall be open at all times to inspection by  representatives  of
Sponsor.
     (c) For the purposes of this Section 5, the term "costs" shall include only
costs  of  the  types   contemplated   by  Exhibit  A,  and  shall  not  include
administrative  overhead or  indirect  costs  except to the extent  specifically
stated in Exhibit A.
6.   Technical Data
     All  developments,  inventions,  improvements,  information,  data or ideas
(hereinafter  referred  to as  "Technical  Data")  which  flow  from work on the
Project  shall  be the  equally  shared  property  of  Contractor  and  Sponsor,
regardless of whether such  Technical  Data are  patentable,  and  regardless of
whether patent applications are filed in respect thereto. In furtherance of this
provision:
     (i) Contractor represents and agrees that it has required, or will promptly
require,  each of its  personnel  engaged  in work on the  Project  to  agree in
writing (x) to disclose  promptly to Contractor  all  Technical  Data which flow
from  work on the  project  and to  specify  whether  such  Technical  Data  (1)
Incorporate any  information  turned over to Contractor by Sponsor or (2) embody
any invention  made in whole or in part in the United  States;  (y) to assign to
Contractor  or  whomever  Contractor  specifies,  the  entire  right,  title and
interest,  for the  United  States and all other  countries,  in and to any such
Technical  Data as  contractor  shall  request;  and (z) to  execute at any time
during the term of this Agreement or thereafter,  all  applications  for patents
covering any of such Technical Data, as well as any other  instruments which may
be considered necessary or appropriate to vest in and secure to the assignee the
rights to be  assigned  under this  subparagraph  (i) of Section 6 to aid in the
prosecution of applications for such patents.
     (ii)  Contractor  further  agrees (x) to  disclose  promptly to Sponsor all
Technical  Data which flow from work on the project and to specify  whether such
Technical  Data (1)  incorporate  any  information  turned over to Contractor by
Sponsor  or (2)  embody  any  invention  made in whole or in part in the  United
States; (y) to formally assign to Contractor and Sponsor the entire right, title
and  interest,  for the  United  States and all other  countries  in and to such
Technical  Data as  Contractor  and  Sponsor  will  agree  upon;  and (z) at the
agreement of the Contractor and the Sponsor, to execute, or obtain the execution
of,  at  any  time  during  the  term  of  this  Agreement  or  thereafter,  all
applications  for patents  covering  any such  Technical  Data,  and any and all
instruments  as may be considered  necessary or  appropriate  by Contractor  and
sponsor to vest in and secure to  Contractor  and to Sponsor the equally  shared
rights assigned to Contractor and Sponsor, provided, however, that Sponsor shall
bear the  expense of the  preparation,  filing and  prosecution  of such  patent
applications and of the preparation of such instruments.
     (iii) Contractor  further agrees that it shall not file, cause to be flied,
or authorize the filing of nor allow any of its  personnel to file,  cause to be
filed,  or  authorize  the filing of patent  applications  anywhere in the world
directed to any inventions  embodied in such Technical Data or to any inventions
disclosed in any  information  turned over the Contractor by Sponsor without the
prior written  approval of Sponsor's  President  together with (x)  notification
that a license has been issued by the United States Government  authorizing such
filing as required by the laws of the United States or (y) written  confirmation
that such license is not required.
                                        3
7.   Intellectual Property
     (i)   All   data,   findings,   discoveries,   etc.   (hereinafter   called
"Information")  that will accrue during research until the point that is ceases,
and which is not patentable, will remain the property of the parties themselves,
and shall not be transferrable to a third party.
     (ii) The  non-transferability  of the above rights to the information shall
expire five (5) years after the cessation of the mutual project,  and each party
will be  free to  dispose  of his  rights  according  to his  own  judgment  and
interest.
     (iii)  Notwithstanding the aforementioned above, each party will be free to
continue research at his own expense after cessation of the mutual project.
     (iv) In the event that as a result of the continued  research  mentioned in
subsection  (iii) above,  information  worthy of a patent is  discovered  and/or
developed,  then the other party will be entitled to  consideration in an amount
to be determined in negotiations between the parties at such a time.
8.   Patents
     (i) In the event that a patent is obtained,  it shall be  registered in the
name of both of the parties as co-owners.
     (ii) Use of the patent  shall be  together,  such that no party will sign a
contract with a third party without the other party's signature,  and the patent
will only be transferrable with the signature of both parties.
     (iii) The right of each party to  transfer  his rights  shall be subject to
the  other  party's  right of first  refusal  according  to the same  price  and
conditions that were offered by the third party.
     (iv)  In  the  event  that  Sponsor  will  not  be   interested  in  patent
registration somewhere, Contractor will have the right to register the patent in
its own name, at its own expense.  Sponsor will give prompt response to any such
notification received from Contractor.
9.   Confidence
     Contractor  shall  take all  reasonable  precautions,  including  requiring
personnel  engaged in work on the  Project to execute  Agreements  substantially
similar to this Section 9, to keep  confidential all information  turned over to
Contractor by Sponsor, Sponsor's interest in the Project, and all Technical Data
as defined (i) Section 6 hereof,  and shall not disclose nor allow its personnel
to disclose any such  information or Technical Data to third persons,  and shall
not publish nor allow its personnel to publish any such information or Technical
Data; provided,  however, that the obligations of this Section 9 shall not apply
(a) in any  case  where  prior  written  approval  is  obtained  from  Sponsor's
President or (b) to the extent that such  information  or Technical  Data (i) is
generally  available to the public,  otherwise than as a consequence of a breach
of Contractor's obligations hereunder to maintain such matters in confidence, or
(ii) is  already  in  Contractor's  written  records  prior  to the date of this
Agreement. Such approval shall not be unreasonably withheld.
                                        4
10.  Modification of Project
     Both parties  recognize that the program of research set forth in Exhibit A
may have to be modified as research results indicate that changes in emphasis of
direction are appropriate.  Modifications  may be agreed to at any time and from
time to time by Sponsor's  President  and the person  designated  by  Contractor
pursuant  to  Section 11 to  maintain  liaison  with  Sponsor's  President.  Any
modification  may be oral unless one of the persons agreeing to the modification
requests that it be in writing.
11.  Liaison
     Contractor  shall  designate a person to  represent  Contractor  under this
Agreement  and to maintain  liaison for  Contractor  with  Sponsor's  President.
Prompt written notice of the person so designated,  and of any subsequent change
of designation,  shall be given to Sponsor.  The person so designated shall keep
Sponsor's  President  fully and currently  informed of the status of work on the
Project and of all research results. When requested by Sponsor's President,  the
person so  designated,  and any other  personnel of  Contractor  assigned to the
Project, shall meet with any persons designated by Sponsor's President to review
the Project.  If the meeting  takes place  outside the State of Israel,  Sponsor
will cover the costs involved in it, unless agreed otherwise.
12.  Research Records
     Contractor  shall  require  personnel  assigned  to  the  Project  to  keep
sufficiently  detailed records of work done on the Project, the findings and the
conclusions,  such records shall be open at all times to inspection  and copying
by representatives  of Sponsor.  Contractor will keep these records for one year
after termination of Project as defined in the attached Exhibit A.
13.  Reports
     Subject to the limitations set forth in Section 14,  Contractor  shall make
the following reports; each of which must begin with an Executive Summary of the
principal  results  detailed  in the main  body of the  report.  This  Executive
Summary should be limited to one page in length,  if possible;  should state the
overall objective of the research program;  should clearly summarize the results
obtained  during the latest  reporting  period;  and  should  describe  the work
proposed  for the next  reporting  period.  As this Summary will be read by some
persons who have no special  knowledge of the research area,  simple language is
recommended.
     During each  calendar year that the contract,  or its  continuation,  is in
force,  two written  progress  reports must be submitted in accordance  with the
following schedule:
Type of Report                               Date Due at Il ZRO Office                    Copies Required
--------------                               -------------------------                    ---------------
                                                                                        
Semi-Annual                                     July 15 - July 30                             20
Annual/Final (Cumulative)                   February 1 - February 15                          30
                                               Within 60 days of
                                            Contract termination date
     At the agreement of Contractor  and Sponsor,  and subject to the provisions
of Section 9,  Contractor  shall prepare and submit to Sponsor a written summary
setting forth the data and conclusions resulting from Contractor's  research, in
a form suitable for publication, in a journal to be mutually agreed upon between
Sponsor and Contractor.
                                        5
14.  Disclosure of Patentable Material
     Contractor  shall promptly call  Sponsor's  attention to any Technical Data
flowing from work on the Project which appear to contain patentable  inventions.
Contractor  shall  not  include  information  as to such  Technical  Data in the
reports  required  by Section  13, but shall  furnish  Sponsor  with copies of a
special report marked "Industrial  Confidential" containing a full disclosure as
to such Technical Data. Such special report shall specify whether any inventions
contained  in such  Technical  Data  (a) were  disclosed  in whole or in part in
information turned over to Contractor by Sponsor or (b) were made in whole or in
part in the United States.
15.  Materials and Equipment
     All  unconsumed   materials  and  equipment   purchased  or  fabricated  by
Contractor  and  charged to Sponsor  under  Section 5 shall be the  property  of
Sponsor. Upon termination of this Agreement,  Contractor shall notify Sponsor of
any such  materials and equipment  that were not consumed on the Project and, if
Sponsor so requests,  shall deliver such materials and  equipment,  at Sponsor's
expense, to such place as Sponsor may direct.
16.  Plant
     (i)  According to the Appendix the plant will be erected on the property of
Ben-Gurion University of the Negev at the expense of Sponsor including parts and
labor.
     (ii) At the end of the period of the mutual  project  the plant will become
the property of Sponsor.
     (iii) Sponsor will notify Contractor within six (6) months from the date of
the cessation of the mutual project what is to be done with the plant.
     (iv) In the event that  Sponsor has not notified  Contractor  by the end of
six (6) months the ownership of the plant will be  automatically  transferred to
Contractor.
     (v) In the event  that the  University  demands  the  removal  of the plant
before the expiration of the six-month period, Sponsor must notify Contractor of
its decision regarding  disposition of the plant no later than fifteen (15) days
before the removal date which the University has given to Contractor.
17.  Payments by Contractor to ILZRO
     In  consideration  of Sponsor's  substantial  five-year  commitment  to the
Project,  Contractor  agrees to remit yearly  payments to Sponsor based upon the
usage of lead in LMMHD systems which  generate  steam,  electricity,  or both in
facilities  intended for all except solely research purposes.  To calculate such
payments,  Contractor will determine at the end of the calendar year, the number
of facilities  brought to initial  operation during that year which are based on
the LMMHD technology  developed by Contractor.  The total amount of lead used in
such  facilities will be calculated  from actual  purchasing  documents for each
facility  or by  assuming  that  200  metric  tons are required  for  each MW of
generated  power and  adjusting  for steam  production.  Based upon this  total,
Contractor will remit payments to Sponsor based upon the following schedule:
     o    $1.37 for each metric ton of lead up to a total sum of $932,000
     o    $0.27 for each additional ton of lead until another $932,000 is paid.
                                        6
     Each payment shall be due and payable  within sixty (60) days after the end
of the calendar  year,  and the full amount of such payment shall be remitted in
U.S. currency and paid to Sponsor's account with a bank designated by Sponsor in
writing. Contractor shall not make any deduction whatsoever from such payments.
18.  Delegation by President
     The powers and duties assigned to Sponsor's  President under this Agreement
may be delegated by him to any member of Sponsor's  staff.  Contractor shall not
be required to recognize such  delegation  until it has received  written notice
thereof from Sponsor's President.
19.  Interpretation 
     In the case of any  inconsistency  between the  provisions of Exhibit A and
the provisions of this Agreement, the latter shall govern.
20.  Notices
     Any  notice,  report or other  communication  required  to be given or made
under  this  Agreement  by one party to the  other  shall be deemed to have been
sufficiently given or made for all purposes if mailed prepaid by registered mail
addressed to such other party at its address set forth at the  beginning of this
Agreement. Either party may, at any time, change its address for the purposes of
this Section 20, by giving written notice of such change to the other party.
21.  Assignability
     This Agreement may not be assigned by Contractor  without  Sponsor's  prior
written  consent.  Subject to the  foregoing  restriction  on  assignment,  this
Agreement  shall  inure to the  benefit of and be binding  upon the  parties and
their respective successors and assigns.
   
22.  Governing Law
     This  Agreement  shall be governed by and construed in accordance  with the
laws of the State of North Carolina.
     IN WITNESS WHEREOF, the parties have executed this Agreement on the day and
year first above written.
SOLMECS (ISRAEL) LTD.                                INTERNATIONAL LEAD ZINC
                                                     RESEARCH ORGANIZATION, INC.
By:  /s/ ▇. ▇▇▇▇▇▇▇▇                                By:   /s/ [ILLEGIBLE]       
     ----------------------                               ----------------------
                                                          President
    
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