AMENDMENT AGREEMENT

        THIS  AMENDMENT  AGREEMENT  made  and  entered  into  this  9th  day  of
November,  1992, to the EXPLORATION FOR  MINING AND MINERAL  DEVELEPMENT  LEASE,
WITH OPTION TO PURCHASE PLACER AND LODE MINING CLAIMS,  dated July I4, 1989, and
the AMENDMENT AGREEMENT,  dated January 20, 1992, by and between DON W. FULLMER,
whose  address is 800 NORTH MAIN,  FILMORE,  UTAH 84631,  herein  referred to as
"Lessor"  or "Owner"  and DANIEL H. ENGH,  DENNIS S. ENGH whose  address is 2340
EAST  GERMANIA  CIRCLE,  SANDY, UTAH  84093-1174,  hereinafter  referred  to  as
"Lessee"

                                   WITNESSETH:

        WHEREAS,  Lessee  wishes  to  change  the  above  mentioned  agreements,
and Owner wishes to change the same agreements, here by agree to amend the above
mentioned agreements,

        WHEREAS,   the  owner  is  the  sole  owner,   or  the  agent  for   the
association  which is the sole owner of the  unpatented  mining claims listed in
Exhibit "A" of this agreement, hereinafter referred to as the "Leased Property",
and

        WHEREAS,  Lessee  desires  to  lease  the  Leased  Property,  Owner  and
Lessee  hereby  agree  to  the  following   (hereinafter   referred  to  as  the
"Agreement"):

    WHEREAS,  Lessor  is  owner  of  certain  properties  and   property  rights
situated in Beaver County, State of Utah, and more particularly described in the
attached Exhibit "A", incorporated by reference,  and hereinafter referred to as
the "Leased Premises"; and






AMENDMENT AGREEMENT
November 09, 1992
Page 2 o f 20


    WHEREAS,  Lessee  desires  to  lease  certain  rights  in  and to the Leased
Premises which Lessor is willing to grant to Lessee;

               NOW  THEREFORE,  in  consideration  of $100.00  paid by Lessee to
Lessors receipt of which is hereby acknowledged and the payments,  covenants and
agreements hereinafter set forth the parties agree as follows:

1.  The Leased Premises.
    -------------------

               The "Leased Premises" shall mean all of the property described in
Exhibit "A"  attached  hereto and made a part hereof,  together  with all of the
ores,  minerals and materials thereon and thereunder,  and all right,  title and
all water, water rights,  easements and rights of way now and hereafter owned or
held by Owner in,  upon or under  the said  property,  or in any way  pertaining
thereto.

2.  Warranties and Representations.
    ------------------------------

               Owner  represents  to Lessee:  (1) that  subject  to the  matters
specifically  set forth in Exhibit  "A," and  subject to the  matters  set forth
below  with  respect  to  unpatented  mining  claims,  Owner  has the  exclusive
possession of the mining claims and (2) that the Owner has the full right, power
and capacity to enter into this Lease upon the terms set forth herein. Since the
Leased Premises,  as described in Exhibit "A" includes unpatented mining claims,
Owner  represents  and warrants to Lessee:  (1) that Owner's title is subject to
paramount  title of the United  States of America and to the rights,  if any, of
surface  patentees;  (2)  that the acts of  location  performed  by Owner on the
unpatented  mining  claims  described  in  Exhibit  "A" have been  completed  in
compliance with the



AMENDMENT AGREEMENT
November 09 , 1992
Page 3 of 20


laws of the State of Utah and of the United States of America;  and (3) that the
Notice Of Intent To Hold has been  completed  and filed with the  Beaver  County
Recorder and the BLM in Salt Lake City,  Utah.  (4) Lessee  represents to owner:
(A) that Lessee has made a preliminary  search of the Bureau of Land  Management
records with regard to the leased  premises and (B) That Lessee is aware of some
conflicting  claims within the  boundaries  of the leased  premises and (C) That
Lessee  intends to do additional  title research and to take such actions as are
necessary to  perfect title  in the Lessors favor,  insofar  as possible and (D)
That Lessee will refrain from  or abandon all  attempts to obtain  title to  the
Leased  Premises except  as  provided  by  this  by  this lease,  without  first
obtaining owners written consent.

I.        GRANT

          1.1   Lessor  hereby  grants  and   leases   to  Lessee   for  and  in
consideration  of, and  subject to all of the terms  provisions  and  conditions
hereinafter  set forth,  the  exclusive  right and  privilege to mine,  extract~
remove and dispose of the all  locarable  Minerals  in, upon or under the Leased
Premises,  together  with the right to use and occupy so much of the  surface of
the Leased Premises as may be required for all purposes  reasonably  incident to
the mining, extracting, removal and disposal of the locatable Minerals according
to the provisions of this Lease.



II.       LEASED MINERALS

          2.1  "Leased Minerals" Or "Locatable Minerals" as used shall  mean all
locatable minerals acquired by virtue of the placer or lode mining claims  owned
by owner.






AMENDMENT AGREEMENT
November 09, 1992
Page 4 of 20


          2.2  Lessee understands and acknowledges hereby that there are current
Federal Potassium Leases on some of the same area as the Leased Premises.   That
the Lessor can only convey the  rights that it  possesses  in relation to placer
and 1ode  mining claims  being staked  over the  Federal  Potassium  Leases,  as
allowed by  the Multiple  Minerals  Development Act, 30 U.S.C. s 521 (1970), and
other State and Federal law.

III.      TERM

          3.1 The primary  term of this Lease shall be for a period  of five (5)
years from  the date hereof  and  for so  long thereafter as Leased Minerals are
produced in  commercial  quantities at more than 500  tons/month  from the lands
described in Exhibit A by the Lessee, their partners, successors or assigns, for
at least ten months of each year after the first year term has expired,  subject
to extension or termination as hereinafter provided.

          3.2  This Lease and the terms and conditions of  this Lease  agreement
issued by  the Lessor  are made  with the Lessee herein on condition that Lessee
and any lawful successor in interest to Lessee shall  perform  all covenants and
terms  and conditions  herein set  forth to be performed by Lessee or its lawful
assigns  including  payment of  royalties as  herein provided.  Lessor may issue
written notice of termination and cancellation  of this  Lease,  and forfeiture,
subject to paragraph 9.1: declaring that the Leased  Premises and each and every
part thereof have thereby reverted to the Lessor, including any and all fixtures
and  improvements  required to be left with the property  upon expiration,





AMENDMENT AGREEMENT
November 09, 1992
Page 5 of 20

termination, or cancellation of this Lease.

          3.3  Lessee may terminate this Lease at any time by giving Lessors  at
least  ninety  (90) days  prior  written  notice,  together with a check in full
settlement of any royalties that are due and unpaid;  upon giving such notice of
termination,  Lessee  shall be  released  of all its  obligations  except  those
obligations which have theretofore  accrued.  Within Thirty (30) days after date
of  termination,  Lessee shall execute and record a release and  quitclaim  deed
releasing  all of  Lessee's  right,  title  and  interest  in and to the  Leased
Premises.

          3.4  Upon the effective date of termination by Lessee, Lessor shall be
entitled to retain all funds paid to it by Lessee pursuant to this Lease.

          3.5  Within sixty (60) days after termination from this Lease,  Lessee
or its successor or assign will provide Lessor with a copy of all data prepared,
collected,  and interpreted  by or  for it  (including maps, drill data, assays,
analyses, geological surveys, topographic surveys, and other data  pertaining to
the Leased Premises and the Leased Minerals. Lessee will provide readable copies
of all new factual geologic data and reports by February 15th of each year.



IV.       CONSIDERATION

          4.1  The Lessee  in  consideration  of the  granting of the rights and
privileges granted herein hereby covenants and agrees as follows:





AMENDMENT AGREEMENT
November 09, 1992
Page 6 of 20

               (1) $5,000.00  due June 15,  i993  and  $5,000.00  annual minimum
royalty beginning on the first anniversary of This lease and  thereafter minimum
$5,000.00  each anniversary  until Lessee  terminates  its rights.   The minimum
royalty  of $5,000.00,  will be  adjusted by  the Consumer  Prices Index for All
Urban Consumers for  U.S. City Average  as published  by the  U.S. Department of
Labor Statistics  who is  created pursuant to  Sec. 5(a) of Public Law 304, 79th
Congress. The average  at the end of December 1992 will be the base year and any
cahange  in the  Consumer Prices Index  for  All Urban Consumers  for  U.S. City
Average for the following year ended  December will determine the percent change
in the $5,000.00 for the following year. Each year becomes  the new base year to
measure change from.

               (2) Production  Royalty: A production royalty on Leased  Minerals
which shall be Two Dollars and 50 Cents per ton  ($2.50/ton) of ore removed from
or mined and processed upon the Leased Property.

               (3) The production royalty of $2.50/ton stated in IV (2), will be
adjusted  by the  Comsumer Prices Index  for All Urban Consumers  for  U.S. City
Average as published by the U.S. Department of  Labor Bureau of Labor Statistics
The average at the end of December 1992 will be  the base year and any change in
the Consumer Prices Index  for  All Urban  Consumers for  U.S. City Average  for
the following year ended  will determine the percent change in the $2.50/ton for
the following  year. Each year becomes the new base year to measure change from.

                    A).  Annual Labor:
                         ------------

                     (1)  To  perform  upon  the  Leased  Premises  the   annual



AMENDMENT AGREEMENT
November 09, 1992
Page 7 of 20

assessment  work as set forth under the laws of the United States and the  State
of Utah, and to prepare  timely proof of  the performance  of such  labor and to
record and file the same as  required  by law, and to furnish Lessor with a copy
thereof.  Should this Lease be terminated as  herein provided  and the effective
date of such termination  shall be ninety (90) days,  or less,  prior to the end
of the then current  assessment year,  Lessee shall nevertheless  be required to
perform upon of the Leased Premises the annual  labor for such  assessment  year
and shall prepare timely proof thereof, record the same, and furnish Lessor with
a copy of such proof as hereinafter provided. In the performance of annual labor
upon or  for the  benefit of the  Leased Premises,  Lessee shall  be entitled to
perform such work upon any of the claims  or upon any  of the  groups of  claims
comprising the  Leased Premises  so long as  such work  shall  qualify  for  the
purpose of the development of the Leased Premises as a contiguous group pursuant
to the  requirements of  law relating to  group work on  mining claims except as
herein provided.

                     (2)  Assessment  work will be  completed by July 15 of each
year  starting with  the 1993  Assessment Year,  or Lessor  may do  the work and
charge reasonable  costs  time and  expenses  to Lessee.  Lessee will furnish to
Lessor  a copy of  the proof-of-labor  with the  County, no later than September
15th of each year.

                    B).  PRODUCTION ROYALTY PAYMENTS:
                         ---------------------------

                     (1)  Production royalty shall be paid  within  thirty  (30)
days after receipt of payment for each shipmen  or when otherwise due,  and each
payment  shall be accompanied by a statement showing the date(s) of shipment(s),





AMENDMENT AGREEMENT
November 09, 1992
Page 8 of 20

quantity and value of each shipment, to whom sold and  the gross value received,
and any cost deductions.

                     (2)  Method of Production royalty payments shall be in U.S.
dollars payable  by cash or valid check  drawn  on  available  funds,  and shall
be deemed made when deposited at Lessor's single depository at:

                            Paradise Management Co.
                                   PO Box 368
                              Filmore, Utah 84631
                              Phone (801) 743-5848

Lessor may change its single depository at any time by giving  written notice to
Lessee.

V.        PERIODIC REPORTS

          5.1  Lessee agrees to make  semi-annual written  reports to lessor (on
or before January 1 and July 1 each year) detailing the exploration, development
and mining work done upon the leased  premises,  quantity  of ores,  minerals or
products shipped from the Leased Premises,  the identity of the buyer(s) thereof
or the place where such ores, minerals or products are stockpiled, the plans for
the Leased Premises during the next six (6) month period,  and other  activities
conducted or planned for the Leased Premises.

          5.2  Lessee  shall audit  all operations  upon the  Leased Premises at
least  annually,  and furnish to Lessor  a copy of such audit within thirty (30)
days after completion.





AMENDMENT AGREEMENT
November 09, 1992
Page 9 of 20


VI.       RIGHTS AND OBLIGATIONS OF LESSEE

          6.1  The Lessee will forthwith  have  and is  hereby granted by Lessor
the right and privilege from the date hereofand so long thereafter as this Lease
remains  in force  and effect of entering  into and upon the Leased Premises and
the  right to  drill and excavate  thereon and  therein  holes,  Pits,  tunnels,
shafts, and other such excavations and to conduct  therein  and  elsewhere  such
surveys,  exploration,  investigations,  sampling, milling,  screening and other
work similar as well as dissimilar as Lessee in its sole judgment and discretion
may wish to know relating to any and all facts relative to  the geology  of  the
Leased Premises, including but not limited to the geology of the Leased Minerals
and the mining, milling, beneficiating, and marketing thereof, together with the
right to  drain  water and  materials  and to  pile  overburden  at places  most
convenient to Lessee, and the right to dig or bore wells and use any water in or
upon said lands and the right to construct and place upon said lands any and all
buildings, dams, drains, machinery, roads, railroads,  pipe  and power lines and
other  improvements  that  may  be  convenient  for said purposes,  all of which
improvements  will become  the  full and  complete  property  of the Lessor upon
termination or assignment of Lease back to Lessor, and  Lessee  will be under no
further obligation or liability with respect thereto except  for reclamation and
except  as provided  in 6.7  paragraph  below.   Lessee will  have the paramount
possession and control of the Leased Premises with regard to the Leased  Mineral
rights obtained herein during and throughout the life of this Lease and shall be
entitled to conduct therein and thereon all mining,  milling  and  beneficiation
uses  and  purposes  reasonably incident  thereto as it shall deem  satisfactory
and advantageous so far as Lessee tries not to interfere  with the rights of the
Federal potassium leases. All work shall be conducted by Lessee as Lessee in its
sole judgment and discretion deems best and in a good and





AMENDMENT AGREEMENT
November 09, 1992
Page 10 of 20


minerlike fashion. Stockpiles and tailings covered by Lease, remain the property
of the Lessor upon  surrender  of Lease.  Mining  timbers in place shall  remain
affixed as part of the Leased Premises unless released in writing to Lessee.

          6.2  Lessor or his agents duly  authorized in writing will have at all
reasonable  times and at his own risk access to all parts of Leased Premises and
associated  premises for  the purposes  of reasonable  inspection of operations,
record  keeping,  and  accounts  to the end that  Lessor  might  verify that the
specified royalty payments are being made properly and that operations are being
conducted in a minerlike  fashion.  Lessee will keep  records in a  businesslike
manner.

          6.3  Any  and   all  future   leases,   transfers,   encumbrances   or
conveyances of interests in the Leased  Premises not covered by this Lease shall
be subordinate to and subject to the rights of Lessee,  his successors,  assigns
of sublessees, so long as this Lease is in force and effect.

          6.4  Lessee shall pay all expenses incurred by it and shall permit  no
liens  to attach  to Leased  Premises  on account of any debt for  materials  or
services furnished for the benefit of the Leased Premises while this Lease is in
effect.

          6.5  Lessee  will  indemnify  and  forever  hold  harmless  and defend
Lessor from any demand,  claim, suit,  judgment or liability  resulting from the
exploratory  or  development  activities  of Lessee  conducted  pursuant to this
agreement.  Upon request of Lessor,  Lessee will furnish  evidence of sufficient
workmen's  compensation,  liability  and other  insurance  to cover  anticipated
risks, or evidence that it is adequately self-insured for such contingencies.




AMENDMENT AGREEMENT
November 09 , 1992
Page i1 of 20


          6.6  Lessee agrees that Leased minerals from the Leased Premises shall
not be mixed or co-mingled  with  minerals,  ore,  subsLances or materials  from
other properties or lands except as agreed by Lessor.

          6.7  In the event of the  termination  of this  Lease by lapse of time
or otherwise, Lessee shall grade and slope and otherwise reclaim that portion of
the land  being leased  pursuant  hereto,  which was the  site of actual  mining
operations,  in accordance  with the  requirements  of  the  State  and  Federal
regulations  then in  effect  and  Owner  may  elect to  assume  the  burden  of
reclaiming the land, by notifying Lessee in writing of his intent to assume said
burden,  in which  event,  Lessee  will  obtain not more than three (3) bids for
performance of the  reclamation  work required by this  paragraph,  and will pay
over to owner a sum equal to  ninety-five  percent  (95%) of the  lowest of said
bids.  Thereafter,  Lessee  shall be  relieved  from  all  duties,  expenses  or
responsibility  with respect to such reclamation and Owner,  simultaneously with
or   prior  to  the   receipt   of  said   payment,   shall   obtain   from  the
appropriate-Government agencies and deliver to Lessee all documents necessary to
release  Lessee  from all further  responsibility  for the  performance  of such
reclamation work.

VII.      PATENT OF CLAIMS

          7.1  Upon  request  of Lessee  at any time  during  the  term  of this
Lease,  the Lessor  agrees to  undertake  to obtain  patent to any of the mining
claims  designated  by Lessee.  Lessee,  at its own expense,  shall  prepare all
documents,  compile all data and comply in all respects with all applicable laws
in this endeavor, and






AMENDMENT AGREEMENT
November 09 , 1992
Page 12 of 20

Lessor shall execute all documents required for this purpose and shall cooperate
fully with Lessee in the patent application and proceedings.

          7.2  The rights of Lessor and Lessee  under this Lease will extend  to
any and  all amended,  relocated,  or patented  claims referred to in Exhibit A.
Lessor and Lessee agree that all amendments, relocations, or staking new cla~ims
in the claimed area, of the claims referred to in Exhibit A, will be made in the
name of Lessor.  Some claims need amending and it is known hereby to the Lessee.
Any valid  mining  claims  staked by Lessor,  or his  agents,  within the Leased
Premises shall fall under and be a part of this Lease.

VIII.     DEFAULT AND FORCE MAJEURE

          8.1  If  Lessee will  be in  default  in  performing  any  obligations
(except  the timely  payment of  royalt(pound)es),  Lessee  shall lose no rights
unless,  within sixty (60) days following  written notice from Lessor,  given at
the address herein  specified,  specifying such failure or breach,  Lessee shall
fail to make such payment or undertake to cure such default by commencement  and
follow through of appropriate  performance,  within a reasonable amount of time.
Upon such failure, Lessor may terminate this Lease.

          8.2   If Lessee  shall  be  prevented or  delayed from  performing its
obligations or performing any work which it desires to perform or is  performing
by reason of act of nature,  strike or threat of  strike,  fire, flood, war, mob
violence, court order, unavoidable casualties,  or any other enumeration, beyond





AMENDMENT AGREEMENT
November 09, 1992
Page 13 of 20


the  control  of  Lessee  which   cannot  be  overcome  by  the  means  normally
employed in  performance  and at comparable  and reasonable  expense,  then  the
duration of this  Lease shall be  extended  for a period  equal to the period of
Force  Majeure  and any failure  to perform  obligations  shall  not be deemed a
breach of this Lease.  Lessee agrees to use  reasonable diligence to remove such
causes of disability as may occur from time to time.  This  paragraph  shall not
excuse payment or delay payment of royalties.

IX.       LEASE PREMISES.

          9.1  The  parties  hereto agree that during the term of this Lease, in
the event title  to any of the  Leased Premises  is contested  by any  person or
persons, corporation or corporations,  or governmental agencies, Lessee will, at
its own  election and  expense, defend  the title to  any of the Leased Premises
before any court of competent jurisdiction or any  administrative  body.  Lessee
will defend any  actions  for  damages  relating  to  exploration,  development,
or mining activities by Lessee on Leased Premises.

          9.2  Lessor, upon execution of this Lease, shall  furnish Lessee  with
copies  of all property  maps possessed  by Lessor  on the  Leased  Premises and
adjacent lands.

X.        TAXES AND DUTIES.

          10.1 Lessee agrees to pay (i) all taxes hereafter levied and  assessed
upon all machinery  and  improvements placed by Lessee upon the Leased Premises,
(ii) taxes hereafter levied upon the Leased Premises,  including taxes  assessed
by  reason  of  net annual  proceeds,  and (iii)  occupation  or severance taxes
imposed upon the mining or production of Leased Minerals from the Leased




AMENDMENT AGREEMENT
November 09, 1992
Page 14 of 20


Premises  or any other  taxes,  assessments  or charges  resulting  from  Lessee
activities on Leased Premises.

          10.2  Lessor  agrees  to  promptly  transmit  to  Lessee  any  notices
pertaining to taxes, assessments and charges which Lessor may receive.

          10.3  Lessee, in all operations under this Lease, will comply with all
applicable  State and  Federal  laws,  including  the  social  laws  relative to
employment,   safety,   workmen's  compensation   insurance,   social  security,
unemployment  tax and tax  withholding.  Lessee shall hold Lessor  harmless from
claims of damage to persons or property  arising from Lessee's  operations under
this  Lease.  Lessee will comply with  hazardous  waste,  air and water  quality
requirements.

          10.4  Lessee will do all  reclamation  work required by the Bureau  of
Land Management, the State of Utah or Beaver County in a timely manner.

XI.       ASSIGNMENT AND TRANSFER

          11.1 Lessee can convey, assign or transfer its interest in this  lease
or any part of this Lease without the prior notification  and consent in writing
of  the  Lessor.  The assignee party will,  as a  condition of  consent  to  the
transfer,  agree to be bound by and  subject  to the  terms of this  Lease.  Any
assignee  party will provided a photocopy of the executed copy of assignment and
is delivered to the other party. Overriding royalty assignments will 'not become
effective, even if otherwise valid without the consent in writing of the Lessor.
Lessee, its successor and assigns, may not assign or convey royalty,  overriding
royalty, production payment or like interest in the Leased Premises




AMENDMENT AGREEMENT
November 09, 1992
Page 15 of 20


without Lessor's prior written consent.

XII.      MISCELLANEOUS

          12.1 This  agreement shall  be governed  by the  laws of  the State of
Utah.

          12.2 Title headings  are for convenience  only and shall not be deemed
a part of this Lease.

          12.3 This Lease and Its Exhibit contain the entire  agreement  between
the parties and  supersedes  entirely any prior  understandings  whether oral or
written.

         12.4  If  any   provisions  of   this  Lease  is  or  becomes  void  or
unenforceable  by Force of Law,  the other  provisions  shall  remain  valid and
enforceable.

         12.5 Lessor's and Lessee's proper address shall be the following, which
either may change by giving written notice to the other.

                                 Don W. Fullmer
                                  P.O. Box 268
                                 800 North Main
                               Filmore, Utah 84631



                         Daniel H. Engh, Dennis S. Engh
                           2340 East Germania Circle
                             Sandy, Utah 84093-1174

          12.6 The failure to enforce at any time any provisions  of this Lease,
shall in no way be  construed to be a waiver of such  provisions,  or to  affect
validity of the Lease.

         12.7 This Lease shall be binding upon and inure to the




AMENDMENT AGREEMENT
November 09, 1992
Page 16 of 20


benefit of the successors and permitted assigns of the parties.

          12.8 A Memorandum of this Lease may be filed by either party.

          12.9 Lessee will diligently explore and conduct operations on or  near
Leased  Premises  throughout  the  term  of  this  Lease in  a manner reasonably
calculated to advance the production of minerals from Leased Premises.

          IN WITNESS WHEREOF,  this  Lease  has  been  executed and delivered by
Lessor to Lessee as of the day and year first above written.



/s/Don W. Fuller
- --------------------------------------
Don W. Fullmer
LESSOR






/s/Daniel H. Engh                            /s/Dennis S. Engh
- --------------------------------------       -----------------------------------
Daniel H. Engh                               Dennis S. engh
LESSEE                                       LESSEE










AMENDMENT AGREEMENT
November 09, 1992
Page 17 of 20

                                 ACKNOWLEDGMENT

STATE OF UTAH
                         SS.
COUNTY OF MILLARD


        On this 9th day of  November, 1992, before me personally appeared DON W.
FULLMER to me known to be the person described in and who executed the foregoing
instrument  and acknowledged  that he  executed the  same as a free act and deed
        Given  under  my  hand  and  seal  this  9th  day   of  November,  1992.
My Commission Expires 4-15-95
                      ---------------------------
                      /s/Lisa M. Morey
                      ---------------------------



                                 ACKNOWLEDGMENT

STATE OF UTAH

                         SS.
COUNTY OF SALT LAKE


        On this 9th day of  November, 1992, before me personally appeared DANIEL
H. ENGH to me known to be the person described in and who executed the foregoing
instrument and acknowledged that he executed the same as a free act and deed.
        Given under my hand and seal this 9th day of November, 1992.
My Commission Expires      4-15-95
                     -----------------------
                     /s/Lisa M. Morey
                     -----------------------



AMENDMENT AGREEMENT
November 09, 1992
Page 18 of 20

                                 ACKNOWLEDGMENT

STATE OF UTAH

                              SS.
COUNTY OF SALT LAKE


        On this 9th day of November, 1992, before me personally appeared  DENNIS
S. ENGH to me known to be the person described in and who executed the foregoing
instrument and acknowledged that he executed the same as a free act and deed.
        Given under my hand and seal this 9th day of November, 1992.
My Commission Expires        4-15-95
                     -------------------------
                     Lisa M. Morey
                     -------------------------



AMENDMENT AGREEMENT
November 09, 1992
Page 19 of 20

                                    EXHIBIT A

                          To the Mining Lease Agreement
           Between Don W. Fullmer, and Daniel H. Enqh, Dennis S. Enqh.







Dated the ~--~ day of November, 1992.

        The Property  consists of Lode Claims and Placer claims Plus,  all other
claims located in Townships 29 South Range 13 West and Township 29 South 14 West
Salt Lake Medrian, Beaver County, Utah which Owner has claim to in this area.






CLAIM NAME
DESCRIPTION
UMC NUMB~







CLAIM NAME         DESCRIPTION                                        UMC NUMBER
- ---------------    -----------------------------------------          ----------

Julie White #l     NW 1/4 SEC. 9. TWNS. 29 SO. R-13. (PLACER)          303016
Julie White #2     SW 1/4 SEC. 9, TWNS. 29 SO. R-13. (PLACER)          303017
Julie White #3     NE 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303018
Julie White #4     SE 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303019
Julie White #5     NW 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303020
Julie White #6     NE 1/4 SEC. 7, TWNS. 29 SO. R-13. (PLACER)          303021
Julie White #7     NW 1/4 SEC. 7, TWNS. 29 SO. R-13. (PLACER)          303022
Julie White #8     NE 1/4 SEC. 12,TWNS. 29 SO. R-14. (PLACER)          303023
Julie White #9     SE 1/4 SEC. 1, TWNS. 29 SO. R-14. (PLACER)          303024


                                 (LODES CLAIMS)
                                 --------------

Julie White #ll    NE 1/4 SEC. 7 & NW 1/4 SEC. 8,TWNS. 29 SO. R-13 W.  302980
Julie White #12    NE 1/4 SEC. 7 & NW 1/4 SEC. 8,TWNS. 29 SO. R-13 W.  302981
Julie White #13    NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                 302982
Julie White #14    NW 1/4 & NE 1/4 Sec. 8, TWNS. 29 SO. R-13 W.        302983
Julie White #15    NW 1/4 SEC. 8. TWNS, 29 SO. R-13 W.                 302984
Julie White #16    NW 1/4 & NE 1/4 Sec. 8, TWNS. 29 SO. R-13 W.        302985
Julie White #l7    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                 302986
Julie White #18    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                 302987
Julie White #19    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                 302988
Julie White #20    NE & NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.            302989
Julie White #21    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                 302990
Julie White #22    NE & SE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.            302991

     Situated in Township 29 South, Range 13 West, Township 29 South, Range 14,
Salt Lake Meridian, Beaver County, Utah.




AMENDMENT AGREEMENT
November 09, 1992
Page 20 of 20


CLAIM NAME                                                            UMC NUMBER


Julie White #23                                                       326947
Julie White #24                                                       326948
Julie White #25                                                       326949
Julie White #26                                                       326950
Julie White #27                                                       326951
Julie White #28                                                       326952
Julie White #29                                                       326953
Julie White #30                                                       326954
Julie White #31                                                       326955
Julie White #32                                                       326956
Julie White #33                                                       326957
Julie White #34                                                       326958
Julie White #35                                                       326959
Julie White #36                                                       326960
Julie White #37                                                       326961
Julie White #38                                                       326962


    Situated  in Township  29  South,  Range 13 West, Salt Lake Meridian, Beaver
County, Utah.






                                  MINING LEASE

                                     BETWEEN

                 DANIEL H. ENGH, CONNIE L. ENGH, DENNIS S. ENGH,
           JUDY A. ENGH, DARIN ENGH, HOLLY ENGH (a.k.a. HOLLY KINGDON)

                                       AND

                            UTAH CLAY TECHNOLOGY 1NC.
                              (A UTAH CORPORATION)

                                  MARCH 1, 1994






                                TABLE OF CONTENT
                                ----------------

ARTICLE                                                                 Page No.
- -------                                                                 --------

   I - DEFINITIONS............................................................1
          1.1       "Agreement"..............................................1
          1.2       "Area of Interest".......................................2
          l.3       "Assets".................................................2
          1.4       "Leased Minerals"........................................2
          1.5       "Development"............................................2
          1.6       "Dollars" or "$".........................................2
          1.7       "Exploration" ' .........................................2
          1.8       "Effmtxve Date...........................................2
          1.9       "Exploration Period".....................................2
          1.10      "Exploration Rights .....................................2
          1.11      "Mining" ................................................2
          1.12      "Operations".............................................3
          1.13      "Prime Rate".............................................3
          1.14      "Products"...............................................3
          1.15      "Program"................................................3
          1.16      "Propertion".............................................3
          1.17      "Transfer"...............................................3
          1.18      "Work Expenditures"......................................3

  II - REPRESENTATIONS AND WARRANTIES; COVENANTS;
       TITLE TO ASSETS
          2.1       Capaeity of Participants.................................3
          2.2       Representations and Warranties...........................4
          2.3       Disclosures..............................................6
          2.4       Covenants................................................6
          2.5       Record Title Jmd Lessor's Interest ......................6
          2.6       Federal Potassium Leases.................................6

 III - NAME, PURPOSES AND TERM...............................................7
          3.1       General..................................................7
          3.2       Name ....................................................7
          3.3       Purposes.................................................7
          3.4       Limitation...............................................7
          3.5       Term.....................................................7
          3.6       Terms and Conditions.....................................8
          3.7       Termination..............................................8
          3.8       Funds Paid...............................................8
          3.9       Copy of all Data.........................................8

                                       i


ARTICLE                                                                 Page No.
- -------                                                                 --------

  IV - CONSIDERATION.........................................................8
          4.1       Consideration............................................8
          4.1(A)    Annual Labor ............................................8
          4.1(B)    Reserved Royalty.........................................8

   V - APPOINTMENT OF AGENT BY LESSOR.......................................10
          5.1       Appointment of Agent....................................10

  VI - PERIODIC REPORTS ....................................................10
          6.1       Semi-annual Wirtten Reports.............................10
          6.2       Audit all Operations....................................10

 VII - RIGHTS AND OBLIGATIONS OF LESSEE ....................................10
          7.1       Entering Leased Premises ...............................10
          7.2       Inspection of Operations, records ......................11
          7.3       Transfers, Encumbrances or Conveyances .................11
          7.4       Expenses and Liens......................................11
          7.5       Indemnification.........................................11
          7.6       Mixed or Co-mingle minerals.............................12

VIII - PATENT OF CLAIMS.....................................................12
          8.1       Obtaill Patent to Mining Claims.........................12
          8.2       Rights extend to Amendments.............................12


  IX - DEFAULT AND FORCE MAJEURE ...........................................12
          9.1       Default Performaing Obligations.........................12
          9.2       Prevented or Delayed from Obligations...................12

   X - LEASE PREMISES.......................................................13
         10.1       Defend Title............................................13
         10.2       Copies Map..............................................13

  XI - TAXES AND DUTIES.....................................................13
         11.1       Lessee Agrees to Pay Taxes..............................13
         11.2       Notices to Lessee.......................................13
         11.3       Comply with all State and Federal Laws..................13
         11.4       Reclamation Work....................................... 13

 XII - ASSIGNMENT AND TRANSFER
         12.1       Assign or Transfer......................................14

XIII - MISCELLANEOUS........................................................14
         13.1       Governed by Utah Laws...................................14
         13.2       Title for Convenience...................................14
         13.3       Contain Entire Agreement................................14
         13.4       Force of Law............................................14
         13.5       Proper Address's........................................14
         13.6       Affect Validity of thc Lease............................14
         13.7       Benefit of the Successors...............................15

                                       ii






ARTICLE                                                                 Page No.
- -------                                                                 --------

         13.8       Memorandum of Lease.....................................15
         13.9       Diligently Explore......................................15

XIV - EXPLORATION REQUIREMENTS .............................................15
         14.1       Operator of Exploration, Mining.........................15

EXHIBITS
- --------

         EXHIBIT A - PROPERTIES .............................................1
          PART I. - Proporties and Title Exceptions..........................1
          PART 2. - Area of Interest.........................................4


                                       iii






                                  MINING LEASE

        THIS MINING LEASE, herein referred to as "Lease",  made and entered into
this 1st day of March,  1994, by and between DANIEL H. ENGH,  CONNIE L. ENGH, at
2340 East Germania Circle, Sandy, Utah 84093-1174, DENNIs S. ENGH, JUDY A. ENGH,
at 4532 Briarcreek Drive,  Salt Lake City, Utah 84124,  DARIN ENGH, at 437 Elise
Street,  Sandy, Utah 84070,  HOLLY ENGH (a.k.a.  HOLLY KINGDON) at 9064 Cheyenne
Way, Park City,  Utah 84060  hereinafter  referred to as "Owner or Lessor",  and
UTAH CLAY TECHNOLOGY INC., a Utah  corporation,  having an address at 3985 South
2000 East, Salt Lake City, Utah 84124 (hereinafter designated as "Lessee"):

                                   WITNESSETH:

       WHEREAS,  Lessor is  owner of  certain  properties  and  property  fights
situated in Beaver County, State of Utah, and more particularly described in the
attached Exhibit "A", incorporated by reference,  and hereinafter referred to as
the "Leased Premises"; and

       WHEREAS,  Lessee  desires  to lease  certain  fights in and to the Leased
Premises which Lessor is willing to grant to Lessee;

       NOW  THEREFORE,  in  Consideration  of  $10.00  paid  by  Lessee to Owner
receipt  of  which  is  hereby  acknowledged  and the  payments,  covenants  and
agreements hereinafter set forth the parties agree as follows:

       GRANT, Lessor hereby grants and leases to Lessee for and in consideration
of, and subject to all of the terms  provisions  and  conditions  hereinaftg set
forth, the exclusive right and privilege to mine, extract, remove and dispose of
the all locatable Minerals in, upon or under the Leased Premises,  together with
the right to use and occupy so much of the surface of the Leased Premises as may
be required  for all  purposes  reasonably  incident to the mining,  extracting,
removal and disposal of the locatable  Minerals  according to the  provisions of
this Lease.

                                   ARTICLE I
                                   ---------

                                  DEFINITIONS
                                  -----------

        1.1  "Agreement"  means this Mining Lease,  including all amendments and
modifications  thereof,  and all schedules and exhibits,  which are incorporated
herein by this reference.

                                       -1-






        1.2  "Area of Interest" means the area described in Part 2 of Exhibit A.

        1.3  "Assets" means  the  Properties,  Products  and all other  real and
personal property,  tangible and intangible,  held for the benefit of the Lessor
hereunder.

        1.4  "Leased Minerals" or "Locatable Minerals" as used herein shall mean
all  locatable  minerals  acquired by virtue of the placer or lode mining claims
owned by owner.

        1.5  "Development" means all preparation for the removal and recovery of
Products,  including the  construction  or  installation  of a mill or any other
improvements to be used for the mining,  handling  milling,  processing or other
beneficiation of Products.

        1.6  "Dollars" or  "$"  means  dollars in  the currency  of  the  United
States.

        1.7  "Exploration" means all activities directed toward ascertaining the
existence,  location,  quantity,  quality or  commercial  value of  deposits  of
Products.

        1.8  "Effective Date" means the date first written above.

        1.9  "Exploration Period"  means the  period of time during which Lessee
is conducting Exploration Operations pursuant to Article  VII.  The  Exploration
Period  shall begin on the  Effective  Date and,  unless this  Agreement  sooner
terminates,  shall end on the date a processing  mill is placed into  production
with Leased Minerals.

        1.10 "Exploration Rights" mean collectively the following:

             (a) the  sole  and  exclusive  right  of  Lessee  and  its  agents,
employees, contractors, subcontractors and workers, to enter upon and occupy the
Properties for Exploration purposes during the Exploration Period and to conduct
thereon such prospecting,  trenching, drilling, sampling,  examination,  testing
development,  engineering  and  feasib'dity  studies  for  kaolin  and  other or
associated  clays or metals and all other  ores and  minerals  whatever  kind or
character as desired by Lessee; and

             (b) the  right  to do  such  other  things as  Lessee,  in its sole
discretion,  deems  advisable or necessary to maintain and to fully evaluate the
mineral  potential of the Properties to determine the feasibility of Development
of the Properties, including the right to remove bom the Properties such limited
volumes of  minerals  and  materials  as are  necessary  for test and  assaying;
provided,  however,  that Lessee shall not have the right during the Exploration
Period to mine and remove such minerals and materials for sale.

        1.11 "Mining" means the mining, extracting, producing, handling, milling
or other processing of Products.

                                       -2-






        1.12 "Operations" means the activities carried out under this Agreement.

        1.13 "Prime Rate" means the interest rate published as the Prime Rate in
the  "Money  Rates"  column  of The Wall Street Journal, as said rate may change
                                -----------------------
from day to day, or if said  column sets forth a range of rates on a single day,
the arithmetic mean thereof.

        1.14 "Products" means all ores,  minerals and mineral resources produced
from the Properties under this Agreement.

        1.15 "Program" means a description in reasonable detail of Operations to
be conducted  and  objectives to be  accomplished  by the Lessee for a specified
period.

        1.16  "Properties"  means those interests in real property  described in
Part 1 of Exhibit A and all other  interests in real property within the Area of
Interest which are acquired and held subject to this Agreement.

        1.17 "Transfer" means sell, grant, assign, ea~nnher, pledge or otherwise
commit or dispose of.

        1.18 "Work Expenditures"  means the 'minimum work obligations  described
in Sections 3.5 and 4.1 below and shall include, for purposes of this Agreement,
the  value of all  time,  money  or  equipment  contn]~uted  to or used on or in
connection  with the Properties or the Area of Interest by Lessee in good faith,
including  but not limited to all  consultants'  time,  all costs of testing and
assaying and all other expenses reasonably  necessary to evaluate the Properties
or the  Area  of  Interest.  Work  Expenditures  shall  include  (a)  geological
evaluation,  geophysical study,  geochemical  analysis,  rock and soil sampling,
geological mapping and similar  activities  affecting the Properties or the Area
of Interest;  (b) drilling,  trenching,  road  construction and pad construction
(plus associated stand-by time) and other physical work on the Properties or the
Area of Interest;  (c)  environmental,  permitting  and  reclamation ~ (d) title
examination and title  curative,  remonumentation  of unpatented  mining claims,
survey (or  re-survey),  claim  filing  fees,  taxes,  and all other  reasonable
project  maintenance or associated costs on or for the benefit of the Properties
or the Area of Interest, including without limitation the maintenance activities
described in Sections  3.2 and 4.1  acquisition  of property  within the Area of
interest.

                                   ARTICLE II
                                   ----------

           REPRESENTATIONS AND WARRANTIES; COVENANTS; TITLE TO ASSETS
           ----------------------------------------------------------

        2.1  Capacity  of  Participants.  Lessee and  Lessor,  each  for  itself
             --------------------------
represent and warrant as follows:

                                       -3-





             (a)  That it is  a  corporation  and  individuals respectively duly
        incorporated and in good standing in its state of incorporation and that
        it is qualified to do business and is in good  standing in those  states
        where necessary in order to carry  out the  purposes  of this Agreement;

             (b)  That  it has  the capacity  to enter  into  and  perform  this
        Agreement  and  all  transactions  contemplated  herein  and  that   all
        corporate and  other  actions  required  to  authorize  it to enter into
        and perform this Agreement have been properly taken;

             (c) That it will not breach any other  agreement or  arrangement by
        entering into or performing this Agreement; and

             (d) That this Agreement has been duly executed and delivered  by it
        and is valid  and  binding  upon  it in accordance with its terms.

        2.2  Representations  and  Warranties.   Lessor   make    the  following
             --------------------------------
representations and warranties effective on the Effective Date:

        The  Leased  Premises.   The "Leased Premises"  shall  mean  all  of the
        ---------------------
Property  described  in Exhibit "A"  attached  hereto and  made a  part  hereof,
together with all of the  ores,  minerals and materials  thereon and thereunder,
and all right, title and all water, water  rights, easements and rights  of  way
now and hereafter owned or held by Lessor in, upon or  under the  said property,
or in any way pertaining thereto.

             (a) With respect to those  Properties Lessor  claimed  through  the
        Bureau Of Land Management and those  Properties Lessor has  enter into a
        mineral leases with the State of Utah, if any,  Lessor  are in exclusive
        possession  mining rights  of such  Properties  free  and  clear  of all
        defects,  royalties,  liens and  encumbrances except  those specifically
        identified in Part I of Exhibit A.

             (b) With  respect to  those Properties  in  which  Lessor  hold  an
        interest under leases or other  contracts:   (i) Lessor are in exclusive
        possession of such  Properties;  (ii) neither  Lessor  has  received any
        notice of default of any of the terms or provisions of  such  contracts;
        (iii)  Lessor  have the authority   under  such   contracts  to  perform
        fully  their obligations under this ~ (iv)  such contracts are valid and
        are in good standing;  and (v) the properties  covered thereby are  free
        and clear of all defects,  royalties,  liens and encumbrances except for
        those  specifically  identified  in  Part  I of  Exhibit A  or  in  such
        contracts.

             (c) With  respect  to unpatented  mining  claims that  are included
        within the Properties, except  as  provided  in Part 1 of  Exhibit A and
        subject  to the  paramount  title of the  United  States, the claims are
        free and clear of  defects, royalties, liens and encumbrances except for
        those specifically  identified in Part 1 of Exhibit A and to the best of
        Lessor's  knowledge  and  belief, (i) the  unpatented mining claims were
        properly  laid  out  and  monumented;  (ii) all  required  location  and
        validation work was properly performed; and (iii)

                                       -4-






        all  assessment work  required to  hold the unpatented mining claims has
        been  performed  in a  manner  consistent  with   that  required  of the
        Lessee  pursuant  to Section  4. l(A) of  this  Agreement  through   the
        assessment  year  ending  September  I,  1994.   With  respect  to  such
        unpatented  mining  claims  located  by or on behalf of Lessor or one of
        their  Affiliates,  except  as  provided  in  Part 1  of  Exhibit A  and
        subject  to  the  paramount  title  of the United  States,  all location
        notices and certificates and all affidavits of assessmem work and  other
        filings  required to  maintain the  claims in  good standing  have  been
        properly  and  timely  recorded  and filed with appropriate governmental
        agencies,  with respect to such unpatented mining claims  that  were not
        located  by or on  behalf  of  Lessor or one of their Affiliates, Lessor
        make the representation and warranty contained in the foregoing sentence
        to the best of their knowledge and belief.  Additionally, Lessor have no
        knowledge of any claims conflicting with the claims  described in Part 1
        of Exhibit A.  Nothing in  this Section 2.2(c), however, shall be deemed
        to be a representation or a warranty that any of the  unpatented  mining
        claims  described  in  Part 1  of  Exhibit A  contains  a  discovery  of
        minerals.

             Lessor  represents  to  Lessee:   (1) that  subject to the  matters
        specifically  set forth in Exhibit  "A," and  subject to the matters set
        forth below with respect to  unpatented  mining  claims,  Lessor has the
        exclusive  possession of the Leased Premises and (2) that the Lessor has
        the full  right,  power and  capacity  to enter into this Lease upon the
        terms set forth  herein.  Since the Leased  Premises,  as  described  in
        Exhibit "A" includes  unpatented  mining  claims,  Owner  represents and
        warrants  to Lessee:  (1) that  Lessor's  title is subject to  paramount
        title of the United  States of America  and to the  rights,  if any,  of
        surface patentees;  (2) that the acts of location performed by Lessor on
        the  unpatented  mining  claims  described  in  Exhibit  "A"  have  been
        completed  in  compliance  with the laws of the State of Utah and of the
        United States of America;  and (3) that the Notice Of Intent To Hold has
        been completed and filed with the Beaver County  Recorder and the BLM in
        Salt Lake City, Utah.

             (d) Lessor  have  delivered  to Lessee all  information  concerning
        title to the Properties in Lessor's possession or control, including but
        not limited to, true and correct copies of all leases or other contracts
        relating to the Properties of which Lessor has knowledge.

             (e)  Except  as  disclosed  in  Exhibit  A, there are no pending or
        threatened  actions,  suits,  claims or proceedings  with respect to the
        Properties.

             (f)  Except as  disclosed  in Exhibit A,  Lessor is  aware  of  any
        adverse environmental condition on or affecting the Properties.

             (g)  Except as  disclosed  in  Exhibit A,  Lessor has any  material
        contractual  commitments  obligations  which  relate  to or  affect  the
        Properties.

Notwithstanding  any other  provision  of this  Section  2.2,  Lessor  makes the
representations  and  warranties  contained  in this  Section to the best of its
knowledge and belief, except that with respect

                                       -5-






to  claims  arising  by, through or  under Lessor  or any its  Affiliates,  such
representations  and  warranties  (except  those  contained  in  Section  2.2(c)
identified  as  being  made on  knowledge  and  belief)  shall be absolute.  The
representations  and  warranties  set forth  above shall  survive  the execution
and delivery of any documents of Transfer provided under this Agreement.

        2.3  Disclosures.  Each of the Participants represents and warrants that
             -----------
it is  unaware of  any material  facts or  circumstances  which  have  not  been
disclosed  in this Agreement, which should be disclosed to the other Participant
in order to prevent the representations in this Article II from being materially
misleading.

        2.4  Covenants.  Lessee covenant and agree as follows:
             ---------

             (a)  At any  time,  they will give prompt notice Lessor (during the
Exploration Period)  of any notice of default,  lawsuit,  proceeding,  action or
damage  of which  either  Lessee  becomes  aware  and  which  might  affect  the
Properties either Participant's title to the Properties.

             (b)  Notwithstanding  any other provision of this Agreement, during
the  Exploration  Period  neither  of them will  Transfer  any  interest  in any
property located in the Area of Interest,  except as between themselves and then
only upon  14-day  prior  notice to  Lessee,  nor will  either of them  conduct,
without Lessor's prior written consent, any property  acquisition,  exploration,
claim staking or mining operations within the Area of Interest.

             (c)  At any  time,  they  will  use their  best  efforts  to assist
Lessor  (during  the  Exploration  Period)  in  obtaining  necessary  permits or
approvals,  access to the Properties and water rights to the extent  required by
or for operations hereunder,  and to assist Lessee in informing Lessor of legal,
title and mining problems which may affect the Properties.

             (d)  They will  make available to Lessor, its employees and agents,
any and all data, maps, other documents or information  which either of them may
have or may acquire pertaining to the Properties.

        2.5  Record Title and Lessor's Interest
             ----------------------------------
             (a)  Title to the mining claims shall be held by Lessor.

             (b)  Lessee will at  all times maintain Utah Clay Technology, Inc.,
in good  standing and  qualified to own  Property under the laws of the State of
Utah.

        2.6  Lessee understands and  acknowledges  hereby that there are current
Federal  Potassium Leases on some of the same area as the Leased Premises.  That
the Lessor can only  convey the rights that it  possesses  in relation to placer
and lode  mining  claims  being  staked over the Federal  Potassium  Leases,  as
allowed by the Multiple  Minerals  Development Act, 30 U.S.C. s 521 (1970),  and
other State and Federal law.

                                       -6-






         Since law hasn't clearly  defined exact cutoffs between the two mineral
domains (Federal leases and later mining claim  locations) and their rights,  it
behooves both the Lessor and Lessee,  or their  successors,  to make  agreements
with the  Potassium  lessee as  necessary to prevent  entanglements,  both as to
mineral and other rights.

                                  ARTICLE III
                                  -----------

                             NAME, PURPOSES AND TERM
                             -----------------------

        3.1  General. Lessor and Lessee hereby enter into this Agreement for the
             -------
purposes  hereinafter  stated and agree that all of their  rights and all of the
Operations on or in connection with the Properties or the Area of Interest shall
be subject to and governed by this Agreement.

        3.2  Name.  The name of this mine shall be The Blawn Wash  Clay.  Lessee
             ----
during the Exploration Period and, thereai~er, shall accomplish any registration
required by applicable assumed or fictitious name statutes and similar statutes.

        3.3  Purposes. This Agreement is entered into for the following purposes
             --------
and  for no  others,  and  shall  serve  as  the  exclusive  means  by which the
Participants, or either of them, accomplish such purposes:

             (a)  to conduct Exploration within the Area Interest,

             (b)  to acquire additional Properties within the Area of Interest,

             (c)  to evaluate the possible Development of the Properties,

             (d)  to  engage  in  Development  and  Mining  Operations  on   the
        Properties,

             (e)  to engage in marketing Products, and

             (f)  to  perform any  other  activity  necessary  appropriate,   or
        incidental to any of the foregoing.

        3.4  Limitation.  Unless  the  Participants  otherwise agree in writing,
             ----------
the  development  and operations  shall be limited to the purposes  described in
Section  3.3, and nothing in this  Agreement  shall be construed to enlarge such
purposes.

        3.5  Term. The primary term of this Lease shall be for a period of three
             ----
(3) years from the date hereof and for so long thereai~er as Leased Minerals are
produced in commercial

                                       -7-






quantities at more than 500 tons/month  from the lands described in Exhibit A by
the Lessee,  their partners,  successors or assigns,  for at least ten months of
each  year  after  the  initial  three (3) year  term has  expired,  subject  to
extension or termination as hereinafter provided.

        3.6  This Lease and the terms and  conditions  of this  Lease  agreement
issued by the Lessor are made with the Lessee  herein on  condition  that Lessee
and any lawful  successor in interest to Lessee shall  perform all covenants and
terms and  conditions  herein set forth to be  performed by Lessee or its lawful
assigns  including  payment of  royalties as herein  provided.  Lessor may issue
written notice of termination and  cancellation  of this Lease,  and forfeiture,
subject to paragraph 9.1:  declaring that the Leased Premises and each and every
part thereof have thereby reverted to the Lessor, including any and all fixtures
and  improvements  required  to be  left  with  the  property  upon  expiration,
termination, or cancellation of this Lease.

        3.7  Lessee may  terminate  this Lease at any time by giving  Lessors at
least  ninety  (90) days prior  written  notice,  together  with a check in fidl
settlement of any royalties that are due and unpaid;  upon giving such notice of
termination,  Lessee  shall be  released  of all its  obligations  except  those
obligations which have theretofore  accrued.  Within Thirty (30) days after date
of  termination,  Lessee shall execute and record a release and  quitclaim  deed
releasing  all of  Lessee's  right,  title  and  interest  in and to the  Leased
Premises.

        3.8  Upon the effective date of termination  by Lessee,  Lessor shall be
entitled to retain all funds paid to it by Lessee pursuant to this Lease.

        3.9  Within sixty (60) days after termination from this Lease, Lessee or
its  successor or assign will provide  Lessor with a copy of all data  prepared,
collected,  and interpreted by or for it (including  maps,  drill data,  assays,
analyses,  geological surveys, topographic surveys, market studies, flow sheets,
processing  studies,  and all other data)  pertaining to the Leased Premises and
the Leased  Minerals.  Lessee will  provide  readable  copies of all new factual
geologic data and reports by February 15th of each year.

                                   ARTICLE IV
                                   ----------

                                  CONSIDERATION
                                  -------------

        4.1  The  Lessee in consideration  of the  granting  of the  rights  and
privileges granted herein hereby covenants and agrees as follows:

               A). Annual Labor:
                   ------------

        (1)  To perform  upon or  for the  benefit  of the  Leased Premises  the
annual assessment work as set forth under the laws of the United  States and the
State of Utah, and to prepare timely proof of the performance  of such labor and
to record and file the same as required by law,

                                       -8-






and to furnish  Lessor with a copy thereof  Should this Lease be  terminated  as
herein provided and the effective date of such termination  shall be ninety (90)
days,  or less,  prior to the end of the then current  assessment  year,  Lessee
shall  nevertheless be required to perform upon or for the benefit of the Leased
Premises  the annual labor for such  assessment  year and shall  prepare  timely
proof thereof,  record the same, and furnish Lessor with a copy of such proof as
hereinafter provided. In the performance of annual labor upon or for the benefit
of the Leased  Premises,  Lessee shall be entitled to perform such work upon any
of the claims or upon any of the groups of claims comprising the Leased Premises
or upon other  claims  lying  outside  the Leased  Premises so long as such work
shall  qualify for the purpose of the  development  of the Leased  Premises as a
contiguous  group pursuant to the  requirements of law relating to group work on
mining claims except as herein provided.

        (2)  Assessment  work will be completed by July 15 of each year starting
with the 1994 Assessment  Year, or Lessor may do the work and charge  reasonable
costs time and  expenses to Lessee.  Lessee will furnish to Lessor a copy of the
proof-of-labor  with the  County  and the BLM  time-stamp  on it, no later  than
September 15th of each year.

         B). RESERVED ROYALTY:

        (1)  To pay lessor a three percent (3%) royalty on all ores, minerals or
products  (herein  called  "Production")  mined  and  removed  from  the  Leased
Premises.  Said royalty  shall be  calculated  based upon the gross value of the
Production.  In the event  Production  is removed  from the Leased  Premises and
stockpiled,  royalty shall be payable  six(6) months after removal and the gross
value shall be deemed the highest value  received for  comparable  material sold
from the Leased  Premises  or from the  nearest  mine or  property to the Leased
Premises.

        (2)  Production  royalty  shall be paid  within  thirty  (30) days after
receipt of payment for each  shipment or when  otherwise  due,  and each payment
shall be accompanied by a statement showing the date(s) of shipment(s), quantity
and value of each shipmer~,  to whom sold and the gross value received,  and any
cost  deductions.  Production  royalty  payments  not made when due  shall  bear
interest at the rate of I 1/2% per calendar month or fraction thereof until paid
in full.

        (3)  Method of  Production  royalty  payments  shall be in U.S.  dollars
payable by cash or valid check  drawn on  available  funds,  and shall be deemed
made when deposited at Lessor's single depository at:

               FIRST UTAH BANK
               3826 South 2300 East
               Salt Lake City,  Utah 84109
               phone (801) 272-9454

                                       -9-






Lessor may change its single  depository at any time by giving written notice to
Lessee.

                                   ARTICLE V
                                   ---------

                         APPOINTMENT OF AGENT BY LESSOR
                         ------------------------------

        5.1  Lessor hereby appoints Daniel H. Engh as their agent and  attorney-
in-fact  for the  purpose of  representing  the claim  owners as  a  group,  and
authorize  him to take all  necessary  or desirable actions on behalf of Lessor.
This appointment  shall be without  limitation and  remain in  force until  said
agent resigns or is replaced  by a newly appointed agent for the entire group of
owners.

                                   ARTICLE VI
                                   ----------

                                PERIODIC REPORTS
                                ----------------

        6.1  Lessee agrees to make semi-annual written  reports to lessor (on or
before January 1 and July 1 each year)  detailing the  exploration,  development
and mining work done upon the leased premises,  the dates, quantity and value of
ores, minerals or products shipped from the Leased Premises, the identity of the
buyer(s)  thereof  or the place  where  such  ores,  minerals  or  products  are
stockpiled,  the plans for the  Leased  Premises  during  the next six (6) month
period, and other activities conducted or planned for the Leased Premises, also,
Lessee will  provide  Lessor with a copy of all data  prepared,  collected,  and
interpreted  by or  for  it  (including  maps,  drill  data,  assays,  analyses,
geological surveys, topographic surveys, market studies, flow sheets, processing
studies,  and all other data)  pertaining to the Leased  Premises and the Leased
Minerals.  Lessee will provide  readable copies of aH new factual  geologic data
and reports by January I and July 1 of each year.

        6.2  Lessee shall audit all operations upon the Leased Premises at least
annually,  and  furnish to Lessor a copy of such audit  within  thirty (30) days
after completion.


                                  ARTICLE VII
                                  -----------

                        RIGHTS AND OBLIGATIONS OF LESSEE
                        --------------------------------

        7.1  The Lessee will forthwith have and is hereby  granted by Lessor the
right  and privilege  from the date  hereof and so long thereafter as this Lease
remains in force and effect of

                                     - 10 -






entering  into and upon the Leased  Premises and the right to drill and excavate
thereon and therein holes, pits, tunnels, shafts, and other such excavations and
to conduct  therein and  elsewhere  such surveys,  exploration,  investigations,
sampling,  milling,  screening  and other work similar as well as  dissimilar as
Lessee in its sole judgment and  discretion may wish to know relating to any and
all facts  relative to the  geology of the Leased  Premises,  including  but not
limited  to  the  geology  of the  Leased  Minerals  and  the  mining,  milling,
beneficiating, and marketing thereof, together with the right to drain water and
materials and to pile  overburden at places most  convenient to Lessee,  and the
right to dig or bore wells and use any water in or upon said lands and the right
to  construct  and place Upon said lands any and ali  buildings,  dams,  drains,
machinery,  roads,  railroads,  pipe and power lines and other improvements that
may be convenient for said purposes,  all of which  improvements will become the
full and complete property of the Lessor upon termination or assignment of Lease
back to Lessor, and Lessee will be under no further obligation or liability with
respect  thereto except for  reclamation and except as provided in paragraph 7.5
below.  Lessee  will have the  paramount  possession  and  control of the Leased
Premises with regard to the Leased  Mineral  rights  obtained  herein during and
throughout  the life of this Lease and shall be entitled to conduct  therein and
thereon  all mining,  milling and  beneficiation  uses and  purposes  reasonably
incident thereto as it shall deem satisfactory and advantageous so far as Lessee
tries not to interfere with the rights of the Federal potassium leases. All work
shall be conducted by Lessee as Lessee in its sole judgment and discretion deems
best and in a good and minerlike  fashion.  Stockpiles  and tailings  covered by
Lease, remain the property of the Lessor upon surrender of Lease. Mining timbers
in place shall remain affixed as part of the Leased  Premises unless released in
writing to Lessee.

        7.2  Lessor or his agents duly  authorized  in writing  will have at ail
reasonable  times and at his own risk access to all parts of Leased Premises and
associated  premises for the purposes of reasonable  inspection  of  operations,
record  keeping,  and  accounts  to the end that  Lessor  might  verify that the
specified royalty payments are being made properly and that operations are being
conducted in a minerlike  fashion.  Lessee will keep  records in a  businesslike
manner.

        7.3  Any and all future  leases, transfers,  encumbrances or conveyances
of interests  in the  Leased  Premises  not  covered  by  this  Lease  shall  be
subordinate to and subject to the fights of Lessee,  his successors,  assigns of
sublessees, so long as this Lease is in force and effect.

        7.4  Lessee shall  pay all  expenses  incurred by  it and  shall  permit
no liens to attach to Leased  Premises on account of any debt for  materials  or
services furnished for the benefit of the Leased Premises while this Lease is in
effect.

        7.5  Lessee will indemnify and  forever hold  harmless and defend Lessor
from any  demand,  claim,  suit,  judgment  or  liability  resulting  fi.om  the
exploratory  or  development  activities  of Lessee  conducted  pursuant to this
agreement.  Upon request of Lessor,  Lessee will furnish  evidence of sufficient
workmen's  compensation,  liability  and other  insurance  to cover  anticipated
risks, or evidence that it is adequately self-insured for such contingencies.

                                      -11-






        7.6  Lessee agrees  that Leased  Minerals from the Leased Premises shall
    not be mixed or co-mingled with minerals,  ore, substances or materials from
    other properties or lands except as agreed by Lessor.

                                  ARTICLE VIII
                                  ------------

                                PATENT OF CLAIMS
                                ----------------

        8.1 Upon  request of Lessee at any time  during the term of this  Lease,
the Lessor  agrees to  undertake  to obtain  patent to any of the mining  claims
designated by Lessee.  Lessee, at its own expense,  shall prepare all documents,
compile all data and comply in all  respects  with all  applicable  laws in this
endeavor,  and Lessor shall execute all documents  required for this purpose and
shall cooperate fully with Lessee in the patent application and proceedings.

        8.2  The rights of Lessor and Lessee under this Lease will extend to any
and ali amended,  relocated, or patented claims referred to in Exhibit A. Lessor
and Lessee agree that all amendments,  relocations, or staking new claims in the
claimed area,  of the claims  referred to in Exhibit A, will be made in the name
of Lessor.  Some claims need amending and it is known hereby to the Lessee.  Any
valid mining claims staked by Lessor, or his agents,  within the Leased Premises
shall fail under and be a part of this Lease.

                                   ARTICLE IX
                                   ----------

                            DEFAULT AND FORCE MAJEURE
                            -------------------------

        9.1  If Lessee will be in default in performing any obligations  (except
the timely  payment of royalties),  Lessee shall lose no rights  unless,  within
sixty (60) days  following  written  notice  from  Lessor,  given at the address
herein specified,  specifying such failure or breach,  Lessee shall fail to make
such  payment  or  undertake  to cure such  default by  commencement  and follow
through of appropriate  performance,  within a reasonable  amount of time.  Upon
such failure, Lessor may terminate this Lease.

        9.2  If Lessee  shall  be  prevented  or  delayed  from  performing  its
obligations  (degree)r  performing  any work  which it  desires to perform or is
performing by reason of act of nature,  strike or threat of strike, fire, flood,
war,  mob  violence,   court  order,   unavoidable  casualties,   or  any  other
enumeration,  beyond the control of Lessee which cannot be overcome by the means
normally employed in performance and at comparable and reasonable expense,  then
the duration of this Lease shall be extended for a period equal to the period of
Force  Majeure  and any  failure  to perform  obligations  shall not be deemed a
breach of this Lease. Lessee agrees to use reasonable

                                      -12-






diligence  to remove such causes of  disability  as may occur from time to time.
This paragraph shall not excuse payment or delay payment of royalties.

                                   ARTICLE X
                                   ---------

                                 LEASE PREMISES
                                 --------------

        10.1 The parties hereto agree that during the term of this Lease, in the
event title to any of the Leased Premises is contested by any person or persons,
corporation or corporations,  or governmental agencies,  Lessee will, at its own
election and expense,  defend the title to any of the Leased Premises before any
court of competent  jurisdiction or any administrative  body. Lessee will defend
any  actions  for  damages  relating  to  exploration,  development,  or  mining
activities by Lessee on Leased Premises.

        10.2 Lessor,  upon  execution of this Lease,  shall furnish  Lessee with
copies of all  property  maps  possessed  by Lessor on the Leased  Premises  and
adjacent lands.

                                   ARTICLE XI
                                   ----------

                                TAXES AND DUTIES
                                ----------------

        11.1 Lessee  agrees to pay (i) all taxes  hereat~er  levied and assessed
upon all machinery and  improvements  placed by Lessee upon the LeaSed Premises,
(ii) taxes herea~er levied upon the Leased Premises, including taxes assessed by
reason of net annual  proceeds,  and (iii) occupation or severance taxes imposed
upon the mining or production of Leased Minerals from the Leased Premises or any
other taxes,  assessments or charges  resulting from Lessee activities on Leased
Premises.

        11.2 Lessor agrees to promptly transmit to Lessee any notices pertaining
to taxes, assessments and charges which Lessor may receive.

        11.3 Lessee,  in all operations  under this Lease,  will comply with all
applicable  State and  Federal  laws,  including  the social  laws  relative  to
employment,   safety,   workmen's  compensation   insurance,   social  security,
unemployment  tax and tax  withholding.  Lessee shall hold Lessor  harmless from
chims of damage to persons or property  arising from Lessee's  operations  under
this  Lease.  Lessee will comply with  hazardous  waste,  air and water  quality
requirements.

        11.4 Lessee will do all reclamation  work required by the Bureau of Land
Management, the State of Utah or Beaver County in a timely manner.

                                      -13-






                                  ARTICLE XII
                                  -----------

                             ASSIGNMENT AND TRANSFER
                             -----------------------

        12.1  Lessee will not convey,  assign or transfer  its  interest in this
lease or any part of this Lease  without the prior  notification  and consent in
writing of the Lessor. The assignee party will, as a condition of consent to the
transfer,  agree to be bound by and  subject  to the  terms of this  Lease.  Any
assignee  party will provided a photocopy of the executed copy of assignment and
is delivered to the other party.  Overriding royalty assignments will not become
effective, even if otherwise valid without the consent in writing of the Lessor.
Lessee, its successor and assigns, may not assign or convey royalty,  overriding
royalty,  production  payment or like  interest in the Leased  Premises  without
Lessor's prior written consent.

                                  ARTICLE XIII
                                  ------------

                                  MISCELLANEOUS
                                  -------------

        13.1 This agreement shall be governed by the laws of the State of Utah.

        13.2 Title headings are for  convenience  only and shall not be deemed a
part of this Lease.

        13.3 This Lease and Its Exhibit contain the entire agreement between the
parties  and  supersedes  entirely  any  prior  understandings  whether  oral or
written.

        13.4 If any provisions of this Lease is or becomes void or unenforceable
by Force of Law, the other provisions shall remain valid and enforceable.

        13.5 Lessor's and Lessee's proper address shall be the following,  which
either may change by giving written notice to the other.

        Daniel H. Engh
        2340 East Germania Circle
        Sandy, Utah 84093

        Utah Clay Technology, Inc. 3985 South 2000 East
        Salt Lake City, Utah 8124

        13.6 The  failure to enforce at any time any  provisions  of this Lease,
shall in no way be  construed  to be a waiver of such  provisions,  or to affect
validity of the Lease.

                                      -14-






        13.7 This Lease  shall be binding  upon and inure to the  benefit of the
successors and permitted assigns of the parties.

        13.8 A Memorandum of this Lease may be filed by either party.

        13.9 Lessee will  diligently  explore and conduct  operations on or near
Leased  Premises  throughout  the  term of this  Lease  in a  manner  reasonably
calculated to advance the production of minerals from Leased Premises.

                                   ARTICLE XIV
                                   -----------

                            EXPLORATION REQUIREMENTS
                            ------------------------

        14.1 Lessor agrees to Utah Clay Technology,  Inc. as the party that will
be the operator's of the  exploration,  and mining of the lode and placer claims
referred to in Exhibit A. Lessee  agrees that it can not  transfer or assign ail
or part of being the operator of the exploration, and mining to any other party.

        IN  WITNESS  WHEREOF,  this Lease has been  executed  and  delivered  by
Lessor to Lessee as of the day and year first above written.



/s/Daniel H. Engh
- -------------------------------
Daniel H. Engh
Lessor



/s/Connie L. Engh
- -------------------------------
Connie L. Engh
Lessor



/s/Dennis S. Engh
- -------------------------------
Dennis S. Engh
Lessor


                                      -15-







/s/Judy A. Engh
- -------------------------------
Judy A. Engh
Lessor



/s/Darin Engh
- -------------------------------
Darin Engh
Lessor



/s/Holly Engh Kingdon
- -------------------------------
Holly Engh (a.k.a. Holly Kingdon
Lessor




UTAH CLAY TECHNOLOGY, INC.



BY:/s/Dennis S. Engh
   ----------------------------
   President
   Lessee


State of Utah
                               S.S.
County of Salt Lake

On this 22nd day of October, 1996, personally appeared before me.


Daniel H. Engh, Connie L. Engh, Dennis S. Engh, Judy A. Engh, Darin Engh,  Holly
- --------------------------------------------------------------------------------
Engh  (a.k.a. Holly Kingdon).    Dennis S. Engh,  having authority  to  sign  as
- ----------------------------
President  of  Utah Clay  Technology, Inc.  and  by  authority  of the  board of
Directors, who acknowledged to me that they executed the foregoing document.




- ------------------------------               RESIDING AT:
                                                         -----------------------
                                             -----------------------------------
                                             -----------------------------------
                                             -----------------------------------

                                      -16-



                                   EXHIBIT A
                                   ---------

               To Mining Lease  Agreement  dated as of March 1st,
               1994, by and among Daniel H. Engh,  Connie L. Engh,
               Dennis S. Engh, Judy A. Engh, Darin Engh, Holly Engh
               (a.k.a. Holly Kingdon) and Utah Clay Technology, Inc.

PART 1
- ------

        With respect to the Properties, Daniel H. Engh and Dennis S. Engh are in
control and ownership of Engh Family placer claims described below:

        The Following  Property consists of Placer Claims plus, all other claims
located  in  Townships  29 South  Range 13 & 14 West Salt Lake  Medrian,  Beaver
County, Utah which Owner has claim to in this area.



  NAME          TYPE OF
 OF CLAIM       CLAIM       FILING DATE          BOOK & PAGE         UMC NUMBER
 --------       -------     -----------          -----------         ----------
  BLUE #201    (PLACER)     07/22/88             238 374             313316
  BLUE #202    (PLACER)     07/22/88             238 375             313317
  BLUE F203    (PLACER)     07/22/88             238 376             313318
  BLUE F204    (PLACER)     07/22/88             238 377             313319
  BLUE #205    (PLACER)     07/22/88             238 378             313320
  BLUE #206    (PLACER)     07/22/88             238 379             313321
  BLUE F207    (PLACER)     07/22/88             238 380             313322
  BLUE F208    (PLACER)     07/22/88             238 381             313323
  BLUE #209    (PLACER)     07/22/88             238 382             313324
  BLUE #210    (PLACER)     07/22/88             238 383             313325
  BLUE//211    (PLACER)     07/22/88             238 384             313326
  BLUE #212    (PLACER)     07/22/88             238 385             313327
  BLUE//213    (PLACER)     07/22/88             238 386             313328
  BLUE F214    (PLACER)     07/22/88             238 387             313329
  BLUE #215    (PLACER)     07/22/88             238 388             313330

                                        1





  BLUE #216    (PLACER)     07/22/88             238 389             313331
  BLUE #217    (PLACER)     07/22/88             238 390             313332
  BLUE #218    (PLACER)     07/22/88             238 391             313333
  BLUE//219    (PLACER)     07/22/88             238 392             313334
  BLUE #220    (PLACER)     07/22/88             238 393             313335

        The above claims are Located and Recorded in Beaver County, Utah.

This mininG  lease  contains a Reserved  Royalty of 3% on all ores,  minerals or
Products (called "Production") mined and removed from the leased Premises.  Said
Royalty  shall be  calculated  based  upon the  gross  value of the  production.
Additionally, the below Julie White lode or placer claims have a minimum royalty
of $5,000.00 and or a production  royalty of $2.50/ton  which is adjusted by the
Consumer Prices Index for all Urban Consumers for U.S. City average as published
by the U.S. Department of Labor Bureau of Labor Statistics.

With respect to the Properties,  Daniel H. Engh and Dennis S. Engh have a mining
lease Dated November 9th 1992 by and between Don W. Fullmer  (Lessor) and Daniel
H. Engh,  Dennis S. Engh  (Lessee).  All terms and conditions of the November 9,
1992  mining  lease will be a part of this  minin~  lease.  Said  claims of this
mining lease are described below:

        The Property  consists of Lode Claims and Placer claims Plus,  all other
claims located in Townships 29 South Range 13 West and Township 29 South 14 West
Salt Lake Medrian, Beaver County, Utah which Owner has claim to in this area.

CLAIM NAME          DESCRIPTION                                     UMC NUMBER
- --------------      -----------------------------------             ----------

Julie White #1      NW 1/4 SEC. 9, TWNS. 29 SO. R-13.  (PLACER)       303016
Julie White #2      SW 1/4 SEC. 9, TWNS. 29 SO. R-13.  (PLACER)       303017
Julie White #3      NE 1/4 SEC. 8, TWIGS. 29 SO. R-13. (PLACER)       303018
Julie White #4      SE 1/4 SEC. 8, TWIGS. 29 SO. R-13. (PLACER)       303019
Julie White #5      NW 1/4 SEC. 8, TWNS. 29 SO. R-13.  (PLACER)       303020
Julie White #6      NE 1/4 SEC. 7, TWNS. 29 SO. R-13.  (PLACER)       303021
Julie White #7      NW 1/4 SEC. 7, TWNS. 29 SO. R-13.  (PLACER)       303022
Julie White #8      NE 1/4 SEC. 12,TWNS. 29 SO. R-14.  (PLACER)       303023
Julie White #9      SE 1/4 SEC. 1, TWNS. 29 SO. R-14.  (PLACER)       303024

                                        2




                                 (LODES CLAIMS)
                                ------------------

Julie White #11     NE 1/4 SEC. 7 & NW ~ SEC. 8,TWNS. 29 SO. R-13 W   302980
Julie White #12     NE 1/4 SEC. 7 & NW ~ SEC. 8,TWNS. 29 SO. R-13 W   302981
Jutie White #13     NW 1/4 SEC. 8, TWNS. 29 SO    R-13 W.             302982
Julie White #14     NW 1/4 & NE 1/4 SEC. 8, TWNS    29 SO. R-13 W.    302983
Julie White #15     NW 1/4 SEC. 8. TWNS. 29 SO    R-13 W.             302984
Julie White #16     NW 1/4 & NE 1/4 SEC. 8, TWNS    29 SO. R-13 W.    302985
Julie White #17     NE 1/4 SEC. 8, TWNS. 29 SO    R-13 W.             302986
Julie White #18     NE 1/4 SEC. 8, TWNS. 29 SO    R-13 W.             302987
Julie White #19     NE 1/4 SEC. 8, TWNS. 29 SO    R-13 W.             302988
Julie White #20     NE & NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.          302989
Julie White #21     NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.               302990
Julie White #22     NE & SE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.          302991

        Situated in Township 29 South,  Range 13 West,  Township 29 South, Range
14, Salt Lake Meridian, Beaver County, Utah.






                              Dated March 1st, 1994

PART 2
- ------

                                Area of Interest

        ALl lands within the following described Areas of Interest including:

          T29S, R13W         Sections 2-6, 7-11, 14-18
          T29S, R14W         Sections 1-2, 11-14

          T28S, R12W         Section 31
          T28S, R13W         Sections 35, 36
          T29S, R12W         Sections 5-7, 18
          T29S, R13W         Sections 1-13
          T29S, R14W         Sections 1, 12, 13

        and any lands in Township 29 South 13 West, Township 29 South 14 West to
define the boundary of Area of interest.


                                        4






                               AMENDMENT AGREEMENT

           THIS  AMENDMENT  AGREEMENT  made and  entered  into this 9th,  day of
November,  1992, to the  EXPLORATION FOR MINING AND MINERAL  DEVELOPMENT  LEASE,
                         -------------------------------------------------------
WITH OPTION TO PURCHASE PLACER AND LODE MINING CLAIMS,  dated July 14, 1989, and
- -----------------------------------------------------
the AMENDMENT AGREEMENT,  dated January 20, 1992, by and between DON W. FULLMER,
    -------------------
whose  address is 800 NORTH MAIN,  FILMORE,  UTAH 84631,  herein  referred to as
"Lessor"  or "Owner"  and DANIEL H. ENGH,  DENNIS S. ENGH whose  address is 2340
EAST  GERMANIA  CIRCLE,  SANDY,  UTAH  84093-1174,  hereinafter  referred  to as
"Lessee"

                                   WITNESSETH:

          WHEREAS,  Lessee wishes to change the above mentioned agreements,  and
Owner  wishes to  change the  same agreements,  here by agree to amend the above
mentioned agreements,

          WHEREAS,  the  owner  is  the  sole  owner,  or  the  agent  for   the
association  which is the sole owner of the  unpatented  mining claims listed in
Exhibit "A" of this agreement, hereinafter referred to as the "Leased Property",
and

          WHEREAS,  Lessee  desires  to lease  the  Leased  Property,  Owner and
Lessee  hereby  agree  to  the  following   (hereinafter   referred  to  as  the
"Agreement"):

     WHEREAS,  Lessor  is  owner  of  certain  properties  and  property  rights
situated in Beaver County, State of Utah, and more particularly described in the
attached Exhibit "A", incorporated by reference,  and hereinafter referred to as
the "Leased Premises"; and






AMENDMENT AGREEMENT
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November 09 , 1992
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     WHEREAS,  Lessee  desires  to  lease  certain  rights in  and to the Leased
Premises which Lessor is willing to grant to Lessee;

          NOW  THEREFORE, in consideration of $100.00  paid by Lessee to Lessors
receipt  of  which  is  hereby  acknowledged  and  the  payments,  covenants and
agreements hereinafter set forth the parties agree as follows:

1.   The Leased Premises.
     -------------------

          The  "Leased Premises"  shall mean  all of  the property  described in
Exhibit "A"  attached  hereto and made a part hereof,  together  with all of the
ores,  minerals and materials thereon and thereunder,  and all right,  title and
all water, water rights,  easements and rights of way now and hereafter owned or
held by Owner in,  upon or under  the said  property,  or in any way  pertaining
thereto.

2.      Warranties and Representations
        ------------------------------

          Owner  represents  to  Lessee:   (1) that  subject  to   the   matters
specifically  set forth in Exhibit  "A," and  subject to the  matters  set forth
below  with  respect  to  unpatented  mining  claims,  Owner  has the  exclusive
possession of the mining claims and (2) that the Owner has the full right, power
and capacity to enter into this Lease upon the terms set forth herein. Since the
Leased Premises,  as described in Exhibit "A" includes unpatented mining claims,
Owner  represents  and warrants to Lessee:  (1) that Owner's title is subject to
paramount  title of the United  States of America and to the rights,  if any, of
surface  patentees;  (2)  that the acts of  location  performed  by Owner on the
unpatented  mining  claims  described  in  Exhibit  "A" have been  completed  in
compliance with the






AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
Page 3 of 20

laws of the State of Utah and of the  United States of America; and (3) that the
Notice Of Intent  To Hold  has been  completed and filed  with the Beaver County
Recorder and the BLM in  Salt Lake City,  Utah.  (4) Lessee represents to owner:
(A)  that Lessee has made a  preliminary search of the Bureau of Land Management
records with  regard to the leased premises and (B) That Lessee is aware of some
conflicting  claims within  the boundaries  of the leased premises and  (C) That
Lessee intends to do additional title research and to take  such  actions as are
necessary  to perfect title in the Lessors  favor,  insofar as possible  and (D)
That Lessee will refrain from or abandon all  attempts  to  obtain  title to the
Leased  Premises  except as  provided by  this  by  this  lease,  without  first
obtaining owners written consent.

I.        GRANT

          1.1  Lessor  hereby   grants   and  leases   to  Lessee  for  and   in
consideration   of, and  subject to  all of the terms  provisions and conditions
hereinafter  set forth,  the exclusive right  and privilege  to  mine,  extract,
remove and dispose of the all  locatable  Minerals in,  upon or under the Leased
Premises,  together with the  right to use and occupy so much of the  surface of
the Leased Premises as may be required for all purposes reasonably  incident  to
the mining, extracting, removal and disposal of the locatable Minerals according
to the provisions of this Lease.

II.       LEASED MINERALS

          2.1  "Leased  Minerals" or "Locatable  Minerals"  as used herein shall
mean all locatable minerals acquired by virtue of





AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
Page 4 of 20


the placer or lode mining claims owned by owner.

          2.2  Lessee understands and acknowledges hereby that there are current
Federal Potassium Leases on some of the same area as the Leased Premises.   That
the Lessor  can only  convey  the  rights  that  it  possesses  in  relation  to
placer and 1ode mining claims being staked over the Federal Potassium Leases, as
allowed  by the  Multiple Minerals  Development  Act,  30  U.S.C. s 521  (1970),
and other State and Federal law.

III.      TERM

          3.1  The primary term of this Lease shall be for a period of  five (5)
years  from the  date hereof and  for so long thereafter  as Leased Minerals are
produced in  commercial  quantities at more than 500  tons/month  from the lands
described in Exhibit A by the Lessee, their partners, successors or assigns, for
at least ten months of each year' after the first year term has expired, subject
to extension or termination as hereinafter provided.

          3.2  This Lease and the terms and conditions of  this Lease  agreement
issued by the Lessor are made  with the Lessee  herein on  condition that Lessee
and any  lawful  successor  in  interest  to Lessee shall perform  all covenants
and terms and  conditions  herein set  forth to  be performed  by Lessee  or its
lawful  assigns including  payment of  royalties as herein provided.  Lessor may
issue  written  notice  of  termination  and  cancellation  of this  Lease,  and
forfeiture,  subject to paragraph 9.1:  declaring  that the Leased  Premises and
each and every part thereof have thereby  reverted to the Lessor,  including any
and all fixtures  and  improvements  required to be left with the property  upon
expiration,





AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
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termination, or cancellation of this Lease.

          3.3  Lessee  may  terminate  this  Lease at any time by giving Lessors
at least  ninety (90) days prior  written  notice, together with a check in full
settlement of any royalties that are due and unpaid; upon giving such  notice of
termination,  Lessee  shall  be  released  of all  its  obligations except those
obligations which have theretofore accrued.  Within  Thirty (30) days after date
of termination,  Lessee  shall execute and record a release and  quitclaim  deed
releasing  all of  Lessee's  right,  title  and  interest in  and to  the Leased
Premises.

          3.4  Upon the effective date of termination by Lessee, Lessor shall be
entitled  to retain  all funds paid to it by Lessee  pursuant  to this Lease.

          3.5  Within sixty (60) days after termination from this  Lease, Lessee
or its successor or assign will provide Lessor with a copy of all data prepared,
collected,  and  interpreted  by or for  it (including maps, drill data, assays,
analyses, geological surveys, topographic  surveys, and other data pertaining to
the Leased Premises and the Leased Minerals. Lessee will provide readable copies
of all new factual geologic data and reports by February 15th of each year.

IV.       CONSIDERATION

          4.1  The  Lessee in  consideration  of the  granting of the rights and
privileges granted herein hereby covenants and agrees as follows:





AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
Page 6 of 20


          (1)  $5,000.00 due June 15, 1993 and  $5,000.00 annual minimum royalty
beginning  on the  first  anniversary  of this  lease  and  thereafter   minimum
$5,000.00 each  anniversary  until Lessee  terminates  its  rights.  The minimum
royalty  of  $5,000 00,  will be  adjusted by the  Consumer Prices Index for All
Urban Consumers for U.S. City Average as published by the U.S. Department of
Labor, Bureau of Labor Statistics who is created pursuants toSec. 5(a) of Public
Law 304, 79th Congress.  The average at the end of  December 1992  will  be  the
base year and  any changes in  the Consumer Prices Index for All Urban Consumers
U.S. City Average  for the  following  year  ended  December will  determine the
percent change in the $5,000.00 for the following  year.  Each year  becomes the
new base year to measure change from.

          (2)  Production  Royalty:   A production  royalty on  Leased  Minerals
which shall be Two Dollars and 50 Cents per ton ($2.50/ton) of ore removed  from
or mined and  processed  upon the Leased Property.

          (3)  The  production  royalty  of $2.50/ton  stated in IV (2), will be
adjusted  by the Consumer  Prices Index for  All Urban  Consumers for  U.S. City
Average as published by the U.S. Department of Labor, Bureau of Labor Statistics
who  is created  pursuant  to Sec. 5(a)  of Public Law 304,  79th Congress.  The
average  at the end of December 1992 will be the base year and any change in the
Consumer  Prices Index  for All  Urban Consumers  for U.S.  City Average for the
following year ended December will determine the percent change in the $2.50/ton
for the  following year.   Each year becomes the new base year to measure change
from.


               A).  Annual Labor:
                    ------------

                   (l)  To perform upon the Leased Premises the annual




AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
Page 7 of 20


assessment work as set forth under the laws of the United  States and the  State
of Utah,  and to  prepare  timely proof of the performance  of such labor and to
record and file the same as required by law, and to furnish Lessor with a   copy
thereof. Should this Lease be terminated as herein  provided and  the  effective
date of such termination shall be ninety (90) days,  or less,  prior to  the end
of the then current assessment year, Lessee shall  nevertheless be  required  to
perform upon of the Leased Premises the annual labor  for such  assessment  year
and shall prepare timely proof  thereof, record  the same,  and  furnish  Lessor
with a copy of such proof as hereinafter  provided. In the performance of annual
labor  upon or  for the  benefit  of  the  Leased  Premises,   Lessee  shall  be
entitled to perform such work upon any of the claims  or upon any of the  groups
of claims comprising the Leased  Premises so long as such work shall qualify for
the  purpose of  the development  of the  Leased Premises  as a contiguous group
pursuant  to the  requirements  of law  relating to  group work on mining claims
except as herein provided.

                   (2)  Assessment  work will  be completed  by July 15  of each
year  starting  with  the  1993  Assessment Year,  or Lessor may do the work and
charge reasonable  costs time and  expenses  to Lessee.  Lessee will  furnish to
Lessor a copy  of the  proof-of-labor  with the County,  no later than September
15th of each year.

               B). PRODUCTION ROYALTY PAYMENTS:
                   ---------------------------

                   (1) Production  royalty shall be paid within thirty (30) days
after  receipt  of  payment  for each  shipment  or when otherwise due, and each
payment shall be accompanied by a statement





AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
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showing the date(s) of shipment(s), quantity and value of each shipment, to whom
sold and the gross value received, and any cost deductions.

                   (2)  Method of Production royalty  payments  shall be in U.S.
dollars payable by cash or valid check  drawn on  available funds,  and shall be
deemed made when deposited at LeSsor's single depository at:


                             Paradise Management Co.
                             P.O. Box 368
                             Filmore, Utah 84631
                             Phone (801) 743-5848

Lessor may change its single  depository at any time by giving written notice to
Lessee.

V.        PERIODIC REPORTS

          5.1  Lessee agrees to make semi-annual  written reports  to lessor (on
or before January 1 and July 1 each year) detailing th  exploration, development
and mining work done upon the leased  premises,  quantity  of ores,  minerals or
products shipped from the Leased Premises,  the identity of the buyer(s) thereof
or the place where such ores, minerals or products are stockpiled, the plans for
the Leased Premises during the next six (6) month period,  and other  activities
conducted or planned for the Leased Premises.

          5.2  Lessee shall  audit all  operations  upon  the Leased Premises at
least annually, and  furnish to Lessor a copy of such audit  within  thirty (30)
days after completion.






AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
Page 9 of 20

VI.       RIGHTS AND OBLIGATIONS OF LESSEE

          6.1  The Lessee will forthwith have and is  hereby  granted  by Lessor
the right and privilege from  the date hereof  and so long  thereafter  as  this
Lease remains in force and effect of entering  into and upon the Leased Premises
and the right to drill and excavate thereon and therein  holes,  pits,  tunnels,
shafts, and other such excavations and to conduct  therein  and  elsewhere  such
surveys,  exploration,  investigations, sampling,  milling, screenifig and other
work similar as well as dissimilar as Lessee in its sole judgment and discretion
may  wish to  know relating  to any and all facts relative to the geology of the
Leased Premises, including but not limited to the geology of the Leased Minerals
and the mining, milling, beneficiating, and marketing thereof, together with the
right  to drain water  and materials  and  to pile  overburden  at  places  most
convenient to Lessee, and the right to dig or bore wells and use any water in or
upon said  lands and the right to  construct  and~  place upon  said  lands  any
and  all buildings,  dams, drains,  machinery, roads,  railroads, pipe and power
lines and other  improvements that  may be convenient for said purposes,  all of
which  improvements will  become the full  and complete  property  of the Lessor
upon termination or assignment of Lease back to Lessor, and Lessee will be under
no further  obligation or liability  with respect thereto except for reclamation
and except as provided in paragraph 6.7 below.  Lessee will  have the  paramount
possession  and control of the Leased Premises with regard to the Leased Mineral
rights obtained herein during and throughout the life of this Lease and shall be
entitled to conduct therein and thereon all mining,  milling  and  beneficiation
uses  and  purposes  reasonably incident  thereto as it shall deem  satisfactory
and advantageous so far as Lessee tries not to interfere with  the rights of the
Federal potassium leases. All work shall be conducted by Lessee as Lessee in its
sole judgment and discretion deems best and in a good and





AMENDMENT AGREEMENT
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November 09 , 1992
Page 10 of 20

minerlike fashion. Stockpiles and tailings covered by Lease, remain the property
of the Lessor upon surrender of Lease.  Mining  timbers  in place  shall  remain
affixed as part of the Leased Premises unless released in writing to Lessee.

          6.2  Lessor or his agents duly authorized in writing will  have at all
reasonable  times and at his own risk access to all parts of Leased Premises and
associated  premises  for the  purposes of reasonable  inspection of operations,
record keeping,  and accounts to  the end that  Lessor  might  verify  that  the
specified royalty payments are being made properly and that operations are being
conducted  in a minerlike  fashion.   Lessee will keep records in a businesslike
manner.

          6.3  Any and all future leases, transfers, encumbrances or conveyances
of interests  in  the Leased  Premises  not  covered  by  this  Lease  shall  be
subordinate  to and  subject  to the rights of  Lessee, his successors,  assigns
of sublessees, so long as this Lease is in force and effect.

          6.4  Lessee shall  pay all expenses incurred by it and shall permit no
liens to attach  to Leased  Premises on  account of any  debt for  materials  or
services furnished for the benefit of the Leased Premises while this Lease is in
effect.

          6.5  Lessee will indemnify and forever hold harmless and defend Lessor
from  any  demand,  claim,  suit,  judgment  or  liability  resulting  from  the
exploratory  or development  activities  of Lessee  conducted  pursuant  to this
agreement.   Upon request of Lessor,  Lessee will furnish evidence of sufficient
workmen's compensation,  liability and  other  insurance  to  cover  anticipated
risks, or evidence that it is adequately self-insured for such contingencies.






AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 11 of 20


          6.6  Lessee  agrees  that  Leased  Minerals  from the Leased  Premises
shall not be mixed or co-mingled  with  minerals,  ore,  substances or materials
from other properties or lands except as agreed by Lessor.

          6.7  In the event of the termination of this Lease by lapse of time or
otherwise,  Lessee shall grade and slope and  otherwise  reclaim that portion of
the land  being  leased  pursuant  hereto,  which was the site of actual  mining
operations,  in  accordance  with the  requirements  of the  State  and  Federal
regulations  then in  effect  and  Owner  may  elect to  assume  the  burden  of
reclaiming the land, by notifying Lessee in writing of his intent to assume said
burden,  in which  event,  Lessee  will  obtain not more than three (3) bids for
Performance of the  reclamation  work required by this  paragraph,  and will pay
over to owner a sum equal to  ninety-five  percent  (95%) of the  lowest of said
bids.  Thereafter,  Lessee  shall be  relieved  from  all  duties,  expenses  or
responsibility  with respect to such reclamation and Owner,  simultaneously with
or   prior  to  the   receipt   of  said   payment,   shall   obtain   from  the
appropriate-Government agencies and deliver to Lessee all documents necessary to
release  Lessee  from all further  responsibility  for the  performance  of such
reclamation work.

VII.      PATENT OF CLAIMS

          7.1  Upon  request  of Lessee  at  any  time  during  the term of this
Lease,  the Lessor  agrees to  undertake  to obtain  patent to any of the mining
claims  designated  by Lessee.  Lessee,  at its own expense,  shall  prepare all
documents,  compile all data and comply in all respects with all applicable laws
in this endeavor, and




AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 12 of 20


Lessor shall execute all documents required for this purpose and shall cooperate
fully with Lessee in the patent application and proceedings.

          7.2  The rights of Lessor and Lessee  under this Lease will extend  to
any  and all  amended,  relocated, or  patented claims referred to in Exhibit A.
Lessor and Lessee agree that all amendments,  relocations, or staking new cl&ims
in the claimed area, of the claims referred to in Exhibit A, will be made in the
name of Lessor.  Some claims need amending and it is known hereby to the Lessee.
Any valid  mining  claims  staked by Lessor,  or his  agents,  within the Leased
Premises shall fall under and be a part of this Lease.

VIII.     DEFAULT AND FORCE MAJEURE

          8.1  If Lessee  will  be  in default  in  performing  any  obligations
(except the timely  payment of  royalties),  Lessee shall lose no rights unless,
within  sixty (60) days  following  written  notice  from  Lessor,  given at the
address herein specified,  specifying such failure or breach,  Lessee shall fail
to make such  payment or  undertake  to cure such  default by  commencement  and
follow through of appropriate  performance,  within a reasonable amount of time.
Upon such failure, Lessormay terminate this Lease.

          8.2  If Lessee  shall  be  prevented  or delayed  from  performing its
obligations  or performing any work which it desires to perform or is performing
by reason of act of nature,  strike or threat of strike,  fire,  flood, war, mob
violence, court order, unavoidable casualties, or any other enumeration,  beyond
the





AMENDMENT AGREEMENT
- -------------------
November 09, 1992
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control of Lessee  which  cannot be overcome by the means  normally  employed in
performance and at comparable and reasonable expense,  then the duration of this
Lease shall be extended for a period equal tothe period of Force Majeure and any
failure  to  perform  obligations  shall not be  deemed a breach of this  Lease.
Lessee agrees to use reasonable diligence to remove such causes of disability as
may occur from time to time.  This  paragraph  shall not excuse payment or delay
payment of royalties.

IX.       Lease Premises.

          9.1  The parties  hereto agree that during the term of this Lease,  in
the  event title  to any of  the Leased  Premises is  contested by any person or
persons, corporation or corporations,  or governmental agencies, Lessee will, at
its own  election and  expense,  defend the title to any of the Leased  Premises
before any court of competent  jurisdiction or any  administrative  body. Lessee
will defend any actions for damages  relating to  exploration,  development,  or
mining activities by Lessee on Leased Premises.

           9.2  Lessor, upon executionof this Lease, shall  furnish Lessee  with
copies  of all  property  maps  possessed  by Lessor on the Leased  Premises and
adjacent lands.

X.        TAXES AND DUTIES

          10.1  Lessee agrees to pay (i) all taxes hereafter levied and assessed
upon all machinery  and  improvements placed by Lessee upon the Leased Premises,
(ii) taxes hereafter levied upon the Leased Premises,  including taxes  assessed
by  reason of  net  annual  proceeds,  and  (iii) occupation  or severance taxes
imposed upon the mining or production of Leased Minerals from the Leased




AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 14 of 20


Premises or  any  other  taxes,   assessments  or charges  resulting from Lessee
activities on Leased Premises.

          10.2  Lessor  agrees  to  promptly  transmit  to  Lessee  any  notices
pertaining  to  taxes,  assessments  and charges which Lessor may receive.

          10.3  Lessee, in all operations under this Lease, will comply with all
applicable  State  and  Federal  laws,  including  the social  laws  relative to
employment,   safety,  workmen's   compensation   insurance,   social  security,
unemployment tax and tax withholding.  Lessee shall  hold Lessor  harmless  from
claims of damage to persons or property  arising from Lessee's  operations under
this Lease.  Lessee  will  comply  with  hazardous waste,  air and water quality
requirements.

          10.4  Lessee will  do all  reclamation  work required  by  the  Bureau
of Land  Management, the State of Utah or Beaver County in a timely manner.

XI.       ASSIGNMENT AND TRANSFER

          11.1  Lessee can convey, assign or transfer its interest in this lease
or any part of this Lease without the prior  notification and consent in writing
of the Lessor. The assignee party  will,  as  a  condition  of  consent  to  the
transfer, agree to be  bound by  and subject  to the terms of  this  Lease.  Any
assignee party will provided a photocopy of the executed copy of assignment  and
is delivered to the other party. Overriding royalty assignments will not  become
effective, even if otherwise valid without the consent in writing of the Lessor.
Lessee, its successor and assigns, may not assign or convey  royalty, overriding
royalty, production payment or like interest in the Leased Premises





AMENDMENT AGREEMENT
- -------------------
November 09 , 1992
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without Lessor's prior written consent.

XII.      MISCELLANEOUS

          12.1  This agreement  shall be  governed  by  the laws of the State of
Utah.

          12.2  Title headings are for convenience  only and shall not be deemed
a part of this Lease.

          12.3  This Lease and Its Exhibit contain the entire agreement  between
the parties  and supersedes  entirely  any prior understandings  whether oral or
written.

          12.4  If  any  provisions  of  this  Lease  is  or  becomes  void   or
unenforceable  by Force of Law,  the other  provisions  shall  remain  valid and
enforceable.

          12.5  Lessor's  and  Lessee's  proper address  shall be the following,
which either may change by giving written notice to the other.

               Don W. Fullmer
               P.O. Box 268
               800 North Main
               Filmore, Utah 84631

               Daniel H. Engh, Dennis S. Engh
               2340 East Germania Circle
               Sandy, Utah 84093-1174

          12.6  The failure to enforce at any time any provisions of this Lease,
shall in no way be  construed to be a waiver of such  provisions,  or to  affect
validity of the Lease.

          12.7 This Lease shall be binding upon and inure to the





AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 16 of 20


benefit of the successors and permitted assigns of the parties.

          12.8  A Memorandum of this Lease may be filed by either party.

          12.9  Lessee  will  diligently  explore  and conduct  operations on or
near Leased  Premises  throughout the term of this Lease in a manner  reasonably
calculated to advance the production of minerals from Leased Premises.

          IN  WITNESS  WHEREOF,  this  Lease  has been executed and delivered by
Lessor to Lessee as of the day and year first above written.





/s/Don W. Fullmer
- -------------------------------
Don W. Fullmer
LESSOR




/s/Daniel H. Engh                           /s/Dennis S. Engh
- --------------------------------            ----------------------------------
Daniel H. Engh                              Dennis S. Engh
LESSEE                                      LESSEE




AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 17 of 20

                                 ACKNOWLEDGEMENT

STATE OF UTAH
                          SS.
COUNTY OF Millard


     On this 9th day of November, 1992,  before me  personally  appeared  DON W.
FULLMER to me known to be the person described in and who executed the foregoing
instrument and acknowledged that he executed the same as a free act and deed.
     Given under my hand and seal this 9th day of November, 1992.
My Commission Expires October 11, 1994.

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



                                 ACKNOWLEDGEMENT


STATE OF UTAH
                         SS.
COUNTY OF Salt Lake


     On this 9th day of November, 1992, before me personally  appeared DANIEL H.
ENGH to me known to be the person described in and who  executed  the  foregoing
instrument and acknowledged that he executed the same as a free act and deed.
     Given under my hand and seal this 9th day of November, 1992.
My Commission Expires April 15, 1995.


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






AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 18 of 20


                                 ACKNOWLEDGMENT

STATE OF UTAH
                         SS.
COUNTY OF Salt Lake


     On this 9th day of November, 1992, before me personally  appeared DENNIS S.
ENGH to me known to be the  person described  in and  who executed the foregoing
instrument and acknowledged that he executed the same as a free act and deed.
     Given under my hand and seal this 9th day of November, 1992.
My Commission Expires April 15, 1995.


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





AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 19 of 20

                                    EXHIBIT A

                          To the Mining Lease Agreement
           Between Don W. Fullmer, and Daniel H. Enqh, Dennis S. Enqh.
                   --------------      ------------------------------
                      Dated the 9th day of November, 1992.

                    The Property consists of Lode Claims and Placer claims Plus,
          all  other  claims  located  in Townships  29  South Range 13 West and
          Township 29 South 14 West Salt Lake Medrian, Beaver County, Utah which
          Owner has claim to in this area.

CLAIM NAME         DESCRIPTION                                        UMC NUMBER
- ---------------    ------------------------------------------         ----------

Julie White #1     NW 1/4 SEC. 9, TWNS. 29 SO. R-13. (PLACER)           303016
Julie White #2     SW 1/4 SEC. 9, TWNS. 29 SO. R-13. (PLACER)           303017
Julie White #3     NE 1/4 SEC. 8, TWNS. 29 SO. K-13. (PLACER)           303018
Julie White #4     SE 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)           303019
Julie White #5     NW 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)           303020
Julie White #6     NE 1/4 SEC. 7, TWNS. 29 SO. R-13. (PLACER)           303021
Julie White #7     NW 1/4 SEC. 7, TWNS. 29 SO. R-13. (PLACER)           303022
Julie White #8     NE 1/4 SEC. 12,TWNS. 29 SO. R-14. (PLACER)           303023
Julie White #9     SE 1/4 SEC. 1, TWNS. 29 SO. R-14. (PLACER)           303024

                                 (LODES CLAIMS)
                              --------------------


Julie White #ll    NE 1/4 SEC. 7 & NW 1/4 SEC. 8,TWNS. 29 SO. R-13 W    302980
Julie White #12    NE 1/4 SEC. 7 & NW 1/4 SEC. 8,TWNS. 29 SO. R-13 W    302981
Julie White #l3    NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                  302982
Julie White #14    NW 1/4 % 1/4 NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.     302983
Julie White #15    NW 1/4 SEC. 8. TWNS. 29 SO. R-13 W.                  302984
Julie White #16    NW 1/4 & NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.         302985
Julie White #17    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                  302986
Julie White #18    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                  302987
Julie White #19    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                  302988
Julie White #20    NE & NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.             302989
Julie White #21    NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                  302990
Julie White #22    NE & SE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.             302991

          Situated  in  Township 29  South,  Range 13  West,  Township 29 South,
Range 14, Salt Lake Meridian, Beaver County, Utah.





AMENDMENT AGREEMENT
- -------------------
November 09, 1992
Page 20 of 20


CLAIM NAME                                                            UMC NUMBER
- ---------------------                                                 ----------

Julie White #23                                                         326947
Julie White #24                                                         326948
Julie White #25                                                         326949
Julie White #26                                                         326950
Julie White #27                                                         326951
Julie White #28                                                         326952
Julie White #29                                                         326953
Julie White #30                                                         326954
Julie White #31                                                         326955
Julie White #32                                                         326956
Julie White #33                                                         326957
Julie White #34                                                         326958
Julie White #35                                                         326959
Julie White #36                                                         326960
Julie White #37                                                         326961
Julie White #38                                                         326962

          Situated  in  Township 29  South,  Range 13  West, Salt Lake Meridian,
Beaver County, Utah.




                            ADDENDUM TO MINING LEASE

     This Addendum to Mining Lease is made tlxis lSth day of March, 2000 by  and
between  Don W. Fullmer  and Areola B. Fullmer, his wife. 905 North Main Street,
Fillmore, Utah 94631. hereinafter referred to  as "Lessor;" and  Daniel H.  Engh
and Dennis S. Engh  whose  address  is  2340 East  Oennania Circle.  Sandy, Utah
84093-1174, hereinafter referred to as "Lessee." In consideration:  of  bringing
minimum  royalty  payments  up  to  date  through  paynents  in  the  amount  of
$24.976.21, the receipt and adequacy  of which is  hereby  acknowledged,  Lessor
hereby  acknowledges  that  file  items of default contained in the Notice dated
December 31, 1999. incorporated by this reference, are hereby  satisfied in full
or waived as to past acts only.

     In  consideration  of the  foregoing  funds  paid  to  Lessor.  Lessor also
ratifies the  following  Mining Lease No. 1 - dated November 9, 1992 with Daniel
H. Engh and Dennis S. Engh as  being  in full  force  and  effect,  without  any
modification  of the  lease or  any waiver  of the  lease  term  as  to   future
performance except at Paragraph 3.1 of the Mining Lease,  the  primary term  and
the  requirement to obtain commercial production are extended for five (5) years
hereof.

     The leases  and claims  covered thereby  are more particularly described on
the attached Exhibit A, incorporated by this reference.

     This Addendum shall be effective on the date above.



/s/Don W. Fullmer                           /s/Daniel H. Engh
- ---------------------------------           ----------------------------------
Don W. Fullmer, (Lessor)                    Daniel H. Engh, (Lessee)



/s/Arnola B. Fullmer                        /s/Dennis S. Engh
- ---------------------------------           ----------------------------------
Arnola B. Fullmer (Lessor)                  Dennis S. Engh, (Lessee)






To The ADDENDUM TO MINING LEASE
Page 2

STATE OF UTAH
                            SS
County of Millard

     On  this 15th  day  of  March, 2000,  personally  appeared before me Don W.
Fullmer  and  Arnola B. Fullmer,  his wife,  who  acknowledged  to me
that they executed the foregoing Addendum to Mining Lease.


                                             /s/Barbara-Ann Iverson
                                             ----------------------------------
                                             NOTARY PUBLIC
                                             Residing at: 390 S. 100E
                                                         ---------------------
                                                          Fillmore, UT
My Commission Expires:

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



STATE OF UTAH
                         SS
COUNTY OF Millard

     On this 15th day of March, 2000, personally appeared before me Daniel H.
Engh and Dennis S. Engh, who acknowledge to me that they executed the foregoing
Addendum to Mining Lease.



                                            /s/Barbara-Anne Iverson
                                            ----------------------------------
                                            NOTARY PUBLIC
                                            Residing At:  390 S. 100E
                                                        ----------------------
                                                          Fillmore, UT
My Commission Expires:

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





To The ADDENDUM TO MINING LEASE
Page 3

                                    Exhibit A

Mining Lease #1
- ---------------

With  respect to  the Properties,  Daniel H. Engh and  Dennis S. Engh   have   a
AMENDMENT AGREEMENT  Dated  November 9th 1992  by  and  between   Don W. Fullmer
Lessor) and Daniel H. Engh, Dennis S. Engh (Lessee). All terms and conditions of
the  November 9, 1992.   AMENDMENT AGREEMENT  will  be  a  part  of this  Letter
Agreement. Said claims of this AMENDMENT AGREEMENT are described below:

     The  Property  consists of  Lode Claims  and Placer  claims Plus, all other
claims located in Townships 29 South Range 13 West and Township 29 South 14 West
Salt Lake Medrian. Beaver County, Utah which Owner has claim to in this area.


CLAIM NAME         DESCRIPTION                                        UMC NUMBER
- ----------         ------------                                       ----------

Julia White #1    NW 1/4 SEC. 9, TWNS. 29 SO. R-13. (PLACER)            303016
Julia White #2    SW 1/4 SEC. 9, TWNS. 29 SO. R-13. (PLACER)            303017
Julia White #3    NE 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)            303018
Julie White #4    SE 1/4 SEC. 8, TWNS. 29 SO. R-13. (PLACER)            303019
Julia White #5    NW 1/4 SEC. 6, TWNS. 29 SO. R-13. (PLACER)            303020
Julia White #6    NE 1/4 SEC. 7, TWNS. 29 SO. R-13. (PLACER)            303021
Julia White #7    NW 1/4 SEC. 7, TWNS. 29 SO. R-13. (PLACER)            303022
Julia White #8    NE 1/4 SEC. 12,TWNS. 29 SO. R-14. (PLACER)            303023
Julia White #9    SE 1/4 SEC. 1, TWNS. 29 SO. R-14. (PLACER)            303024

                                 (LODES CLAIMS)
                              --------------------

Julia White #11   NE 1/4 SEC. 7 & NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W    302980
Julia White #12   NE 1/4 SEC. 7 & NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W    302981
Julia Whi~e #13   NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                   302982
Julia White #14   NW 1/4 & NE 1/4 SEC. 8, TWONS. 29 SO. R-13 W.         302983
Julia White #15   NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                   302984
Juli~ White #16   NW 1/4 & NE 1/4 SEC. 8, TWONS. 29 SO. R-13 W.         302985
Juli~ White #17   NE 1/4 SEC. 8, TOWNS. 29 SO. R-13 W.                  302986
Julia White #18   NE 1/4 SEC.8, TOWNS. 29 SO. R-13 W.                   302987
Julia White #l9   NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                   302988
Julia.White #20   NE & NW 1/4 SEC. 8, TWNS. 29 SO. R-13 W.              302989
Julia White #21   NE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.                   302990
Julia white #22   NE & SE 1/4 SEC. 8, TWNS. 29 SO. R-13 W.              302991

     Situated in Township 29 South,  Range 13 West, Township 29 South, Range 14,
Salt Lake Meridian, Beaver County, Utah.



                                    Exhibit A


Mining Lease Blawn Wash
- -----------------------

To Mining Lease Agreement  dated as of  December 31st, 1999, by and among Daniel
H. Engh, Connie L. Engh,  Dennis S. Engh,  Judy A. Engh,  Darin Engh, Holly Engh
(a.k.a. Holly Kingdon) and Utah Clay Technology, Inc.





PART 1
- ------



        With respect to the Properties, Daniel H. Engh and Dennis S. Engh are in
control and ownership of Engh Family Lode and placer claims described below:

        The Following  Property consists of Placer Claims plus, all other claims
located  in  Townships  29 South  Range 13 & 14 West Salt Lake  Medrian,  Beaver
County, Utah which Owner has claim to in this area.


        The Property  consists of Lode Claims and Placer claims Plus,  all other
claims located in Townships 29 South Range 15 West and Township 30 South 15 West
Salt Lake Medrian, Beaver County, Utah which Owner has claim to in this area.




          Claim Name                 UMC Nos.
          ----------                 --------

                               
          Meadow Nos.    15-20       305325-305330
          Brooke Nos.    30-33       305331-305334
          Blue Nos.      20-46       310617-310643
          Blue Nos.      47-62       312037-312052
          Blue Nos.      63-64       313298-313299
          Blue Nos.      65-66       312053-312054
          Blue Nos.      67-68       313300-313301
          Blue Nos.      69-70       312055-312056
          Blue Nos.      71-76       313302-313307



                                     Page 1














        CLAIM NAME           BOOK     PAGE         UMC NUMBER
        ----------           ----     ----         ----------

                                          
        BLUE #93             238      366          313308
        BLUE #94             238      367          313309
        BLUE #95             238      368          313310
        BLUE #96             238      369          313311
        BLUE #97             238      370          313312
        BLUE #98             238      371          313313
        BLUE #99             238      372          313314
        BLUE #100            238      373          313315









        CLAIM NAME           BOOK     PAGE         UMC NUMBER
        ----------           ----     ----         ----------

                                          
        ENGH #1              252      654          335833
        ENGH #2              252      765          335962
        (AMENDED)            253      119
        ENGH #3              252      766          335963
        (AMENDED)            253      120
        ENGH #4              252      767          335964
        (AMENDED)            253      121
        ENGH #5              252      768          335965
        (AMENDED)            253      122
        ENGH #6              252      769          335966
        (AMENDED)            253      123


        CLAIM NAME           BOOK     PAGE         UMC NUMBER
        ----------           ----     ----         ----------

        ENGH #7              252      770          335967
        (AMENDED)            253      124
        ENGH #8              252      771          335968
        (AMENDED)            253      125
        ENGH #9              252      772          335969
        (AMENDED)            253      126
        ENGH #10             252      773          335970
        (AMENDED)            253      127
        ENGH #11             252      774          335971
        (AMENDED)            253      128
        ENGH #12             252      775          335972
        (AMENDED)            253      129
        ENGH #13             252      776          335973



                                     Page 2






                                          
        (AMENDED)            253      130
        ENGH #14             252      777          335974
        (AMENDED)            253      131
        ENGH #15             252      778          335975
        (AMENDED)            253      132
        ENGH #16             252      779          335976
        (AMENDED)            253      133





        Situated in Township 29 South, Range 15 West, Salt Lake Meridian, Beaver
County, Utah.





  NAME         TYPE OF
OF CLAIM       CLAIM        FILING DATE            BOOK & PAGE        UMC NUMBER
- ---------      --------     -----------            -----------        ----------

                                                            
BLUE #201      (PLACER)      07/22/88               238  374            313316
BLUE #202      (PLACER)      07/22/88               238  375            313317
BLUE #203      (PLACER)      07/22/88               238  376            313318
BLUE #204      (PLACER)      07/22/88               238  377            313319
BLUE #205      (PLACER)      07/22/88               238  378            313320
BLUE #206      (PLACER)      07/22/88               238  379            313321
BLUE #207      (PLACER)      07/22/88               238  380            313322
BLUE #208      (PLACER)      07/22/88               238  381            313323
BLUE #209      (PLACER)      07/22/88               238  382            313324
BLUE #210      (PLACER)      07/22/88               238  383            313325
BLUE #211      (PLACER)      07/22/88               238  384            313326
BLUE #212      (PLACER)      07/22/88               238  385            313327
BLUE #213      (PLACER)      07/22/88               238  386            313328
BLUE #214      (PLACER)      07/22/88               238  387            313329
BLUE #215      (PLACER)      07/22/88               238  388            313330
BLUE #216      (PLACER)      07/22/88               238  389            313331
BLUE #217      (PLACER)      07/22/88               238  390            313332
BLUE #218      (PLACER)      07/22/88               238  391            313333
BLUE #219      (PLACER)      07/22/88               238  392            313334
BLUE #220      (PLACER)      07/22/88               238  393            313335



     The above claims are Located and Recorded in Beaver County, Utah.


This mining  lease  contains a Reserved  Royalty of 3% on all ores,  minerals or
Products (called "Production") mined and removed from the leased Premises.  Said
Royalty  shall be  calculated  based  upon the  gross  value of the  production.
Additionally,  the above  claims  and the below  mineral  leases  have a minimum
royalty of $5,000.00 and or a production  royalty of $2.50/ton which is adjusted
by the Consumer  Prices Index for all Urban  Consumers  for U.S. City average as
published by the U.S. Department of Labor Bureau of Labor Statistics.

Additionally,  the  property  includes  subleases to the  following  Sate of Uah
mineral leases. The State of Utah mineral leases have a 5 1/2% Royalty.

                                     Page 3



A Sub-Lease to the following State of Utah mineral Leases:

Clay lease                                  ML-43616 (ALL)
Clay lease                                  ML-43648 (All)
Industrial Sands lease                      ML-43649 (All)
Industrial Sands lease                      ML-43650 (ALL)
Metalliferous Minerals lease                ML-43651 (All)
Metalliferous Minerals lease                ML-43652 (All)

The State  mineral  leases will be subject to the same terms and  conditions  of
this lease and approval of sub-lease assignment from the State of Utah.

End of Exhibit A.






                                    Exhibit A


Mining Lease White Mountain

To Mining  Lease Agreement  dated as of  March 1st, 1994, by and among Daniel H.
Engh,  Connie L. Engh,  Dennis S. Engh,  Judy A. Engh,  Darin Engh,   Holly Engh
(a.k.a. Holly Kingdon) and Utah Clay Technology, Inc.

PART 1
- ------

        With respect to the Properties, Daniel H. Engh and Dennis S. Engh are in
control and ownership of Engh Family placer claims described below:

        The Following  Property consists of Placer Claims plus, all other claims
located  in  Townships  29 South  Range 13 & 14 West Salt Lake  Medrian,  Beaver
County, Utah which Owner has claim to in this area.





  NAME         TYPE OF
OF CLAIM        CLAIM       FILING DATE            BOOK & PAGE        UMC NUMBER
- ---------      --------     -----------            -----------        ----------

                                                            
BLUE #201      (PLACER)      07/22/88               238  374            313316
BLUE #202      (PLACER)      07/22/88               238  375            313317
BLUE #203      (PLACER)      07/22/88               238  376            313318
BLUE #204      (PLACER)      07/22/88               238  377            313319
BLUE #205      (PLACER)      07/22/88               238  378            313320
BLUE #206      (PLACER)      07/22/88               238  379            313321
BLUE #207      (PLACER)      07/22/88               238  380            313322
BLUE #208      (PLACER)      07/22/88               238  381            313323
BLUE #209      (PLACER)      07/22/88               238  382            313324
BLUE #210      (PLACER)      07/22/88               238  383            313325
BLUE #211      (PLACER)      07/22/88               238  384            313326
BLUE #212      (PLACER)      07/22/88               238  385            313327
BLUE #213      (PLACER)      07/22/88               238  386            313328
BLUE #214      (PLACER)      07/22/88               238  387            313329
BLUE #215      (PLACER)      07/22/88               238  388            313330
BLUE #216      (PLACER)      07/22/88               238  389            313331
BLUE #217      (PLACER)      07/22/88               238  390            313332
BLUE #218      (PLACER)      07/22/88               238  391            313333
BLUE #219      (PLACER)      07/22/88               238  392            313334
BLUE #220      (PLACER)      07/22/88               238  393            313335



     The above claims are Located and Recorded in Beaver County, Utah.


                                     Page 1





This mining  lease  contains a Reserved  Royalty of 3% on all ores,  minerals or
Products (called "Production") mined and removed from the leased Premises.  Said
Royalty  shall be  calculated  based  upon the  gross  value of the  production.
Additionally, the below Julie White lode or placer claims have a minimum royalty
of $5,000.00 and or a production  royalty of $2.50/ton  which is adjusted by the
Consumer Prices Index for all Urban Consumers for U.S. City average as published
by the U.S. Department of Labor Bureau of Labor Statistics.

With respect to the Properties,  Daniel H. Engh and Dennis S. Engh have a mining
lease Dated  November 9th 1992 by and between Don W. Fullmer (Lessor) and Daniel
H. Engh, Dennis S. Engh (Lessee).   All terms and  conditions of the November 9,
1992 mining lease will be a part  of this  mining lease.   Said claims  of  this
mining lease are described below:

        The Property  consists of Lode Claims and Placer claims Plus,  all other
claims located in Townships 29 South Range 13 West and Township 29 South 14 West
Salt Lake Medrian, Beaver County, Utah which Owner has claim to in this area.






CLAIM NAME            DESCRIPTION                                    UMC NUMBER
- ----------            -----------                                    ----------

                                                                  
Julie White #1        NW1/4SEC. 9, TWNS. 29 SO. R-13. (PLACER)          303016
Julie White #2        SW1/4SEC. 9, TWNS. 29 SO. R-13. (PLACER)          303017
Julie White #3        NE1/4SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303018
Julie White #4        SE1/4SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303019
Julie White #5        NW1/4SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303020
Julie White #6        NE1/4SEC. 7, TWNS. 29 SO. R-13. (PLACER)          303021
Julie White #7        NW1/4SEC. 7, TWNS. 29 SO. R-13. (PLACER)          303022
Julie White #8        NE1/4SEC. 12,TWNS. 29 SO. R-14. (PLACER)          303023
Julie White #9        SE1/4SEC. 1, TWNS. 29 SO. R-14. (PLACER)          303024



                                 (LODES CLAIMS)
                                 --------------



                                                                  
Julie White #11       NE1/4SEC. 7 & NW1/4SEC. 8,TWNS. 29 SO. R-13 W     302980
Julie White #12       NE1/4SEC. 7 & NW1/4SEC. 8,TWNS. 29 SO. R-13 W     302981
Julie White #13       NW1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302982
Julie White #14       NW1/4& NE1/4SEC. 8, TWNS. 29 SO. R-13 W.          302983
Julie White #15       NW1/4SEC. 8. TWNS. 29 SO. R-13 W.                 302984
Julie White #16       NW1/4& NE1/4SEC. 8, TWNS. 29 SO. R-13 W.          302985
Julie White #17       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302986
Julie White #18       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302987
Julie White #19       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302988
Julie White #20       NE & NW1/4SEC. 8, TWNS. 29 SO. R-13 W.            302989
Julie White #21       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302990
Julie White #22       NE & SE1/4SEC. 8, TWNS. 29 SO. R-13 W.            302991



        Situated in Township 29 South,  Range 13 West,  Township 29 South, Range
14, Salt Lake Meridian, Beaver County, Utah.

End of Exhibit A.





                            ADDENDUM TO MINING LEASE
                                (WHITE MOUNTAIN)


        This Addendum to the MINING LEASE,  herein referred to as "Lease",  made
and entered  into the 27th day of March,  2000,  by and between  DANIEL H. ENGH,
CONNIE L. ENGH, at 2340 East Germania Circle, Sandy, Utah 84093-1174,  DENNIS S.
ENGH, JUDY A. ENGH, at 4532 Briarcreek Drive, Salt Lake City, Utah 84124,  DARIN
ENGH, at 437 Elise Street,  Sandy, Utah 84070, HOLLY ENGH (a.k.a. HOLLY KINGDON)
at 9064 Cheyenne Way, Park City, Utah 84060 hereinafter referred to as "Owner or
Lessor", and UTAH CLAY TECHNOLOGY INC., a Utah corporation, having an address at
3985 South 2000 East,  Salt Lake City,  Utah 84124  (hereinafter  designated  as
"Lessee"):

        In  consideration,   of  providing  copies  of  testing,   analysis  and
geological  mapping of the White Mountain  claims  describe in Exhibit A and the
acknowledgment  of the payments  due the Lessor from the starting  date of March
1st,  1994,  the receipt of information  and  acknowledgment  of payments due is
adequacy of which is hereby acknowledged.

        In consideration of the foregoing  acknowledgment to Lessor, Lessor also
ratifies the following  Mining Lease for the White Mountain claims  described in
Exhibit A - dated March 1st,  1994 with UTAH CLAY  TECHNOLOGY  INC., as being in
full force and effect,  without any  modification  of the lease or any waiver of
the lease terms as to future performance,  except at Paragraph 3.5 of the Mining
Lease, the primary term and the requirement to obtain commercial  production are
extended for four (4) years from the date hereof.

        The leases and claims covered thereby are more particularly described on
the attached Exhibit A, incorporated by this reference.





To The ADDENDUM TO MINING LEASE (WHITE MOUNTAIN)
Page 2 of 5

        IN WITNESS WHEREOF,  this Addendum To Mining Lease has been executed and
delivered by Lessor to Lessee as of the day and year first above written.




/s/ Daniel H. Engh
- ---------------------------------
Daniel H. Engh
LESSOR



/s/ Connie L. Engh
- ---------------------------------
Connie L. Engh
LESSOR



/s/ Dennis S. Engn
- ---------------------------------
Dennis S. Engh
LESSOR


/s/ Judy A. Engh
- ---------------------------------
Judy A. Engh
LESSOR


/s/ Darin Engn
- ---------------------------------
Darin Engh
LESSOR


/s/ Holly Engh
- ---------------------------------
Holly Engh (a.k.a. Holly Kingdon)
LESSOR







To The ADDENDUM TO MINING LEASE (WHITE MOUNTAIN)
Page 3 of 5



UTAH CLAY TECHNOLOGY, INC.


BY:/s/ Dennis S. Engh
   ------------------------------
   President
   LESSEE






To The ADDENDUM TO MINING LEASE (WHITE MOUNTAIN)
Page 4 of 5

                                    Exhibit A


Mining Lease White Mountain
- ---------------------------

To  Mining Lease Agreement  dated as of  March 1st, 1994, by and among Daniel H.
Engh,  Connie L. Engh,  Dennis S. Engh,  Judy A. Engh,  Darin Engh,   Holly Engh
(a.k.a. Holly Kingdon) and Utah Clay Technology, Inc.

PART 1
- ------

        With respect to the Properties, Daniel H. Engh and Dennis S. Engh are in
control and ownership of Engh Family placer claims described below:

        The Following  Property consists of Placer Claims plus, all other claims
located  in  Townships  29 South  Range 13 & 14 West Salt Lake  Medrian,  Beaver
County, Utah which Owner has claim to in this area.





  NAME         TYPE OF
OF CLAIM        CLAIM       FILING DATE            BOOK & PAGE        UMC NUMBER
- ---------      -------      -----------            -----------        ----------

                                                            
BLUE #201      (PLACER)      07/22/88               238  374            313316
BLUE #202      (PLACER)      07/22/88               238  375            313317
BLUE #203      (PLACER)      07/22/88               238  376            313318
BLUE #204      (PLACER)      07/22/88               238  377            313319
BLUE #205      (PLACER)      07/22/88               238  378            313320
BLUE #206      (PLACER)      07/22/88               238  379            313321
BLUE #207      (PLACER)      07/22/88               238  380            313322
BLUE #208      (PLACER)      07/22/88               238  381            313323
BLUE #209      (PLACER)      07/22/88               238  382            313324
BLUE #210      (PLACER)      07/22/88               238  383            313325
BLUE #211      (PLACER)      07/22/88               238  384            313326
BLUE #212      (PLACER)      07/22/88               238  385            313327
BLUE #213      (PLACER)      07/22/88               238  386            313328
BLUE #214      (PLACER)      07/22/88               238  387            313329
BLUE #215      (PLACER)      07/22/88               238  388            313330
BLUE #216      (PLACER)      07/22/88               238  389            313331
BLUE #217      (PLACER)      07/22/88               238  390            313332
BLUE #218      (PLACER)      07/22/88               238  391            313333
BLUE #219      (PLACER)      07/22/88               238  392            313334
BLUE #220      (PLACER)      07/22/88               238  393            313335



     The above claims are Located and Recorded in Beaver County, Utah.





To The ADDENDUM TO MINING LEASE (WHITE MOUNTAIN)
Page 5 of 5


This mining  lease  contains a Reserved  Royalty of 3% on all ores,  minerals or
Products (called "Production") mined and removed from the leased Premises.  Said
Royalty  shall be  calculated  based  upon the  gross  value of the  production.
Additionally, the below Julie White lode or placer claims have a minimum royalty
of $5,000.00 and or a production  royalty of $2.50/ton  which is adjusted by the
Consumer Prices Index for all Urban Consumers for U.S. City average as published
by the U.S. Department of Labor Bureau of Labor Statistics.

With respect to the Properties,  Daniel H. Engh and Dennis S. Engh have a mining
lease Dated  November 9th 1992 by and between Don W. Fullmer (Lessor) and Daniel
H. Engh, Dennis S. Engh (Lessee).   All terms  and conditions of the November 9,
1992 mining  lease will be  a part of this  mining lease.  Said  claims of  this
mining lease are described below:

        The Property  consists of Lode Claims and Placer claims Plus,  all other
claims located in Townships 29 South Range 13 West and Township 29 South 14 West
Salt Lake Medrian, Beaver County, Utah which Owner has claim to in this area.






CLAIM NAME            DESCRIPTION                                    UMC NUMBER
- ----------            -----------                                    ----------

                                                                  
Julie White #1        NW1/4SEC. 9, TWNS. 29 SO. R-13. (PLACER)          303016
Julie White #2        SW1/4SEC. 9, TWNS. 29 SO. R-13. (PLACER)          303017
Julie White #3        NE1/4SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303018
Julie White #4        SE1/4SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303019
Julie White #5        NW1/4SEC. 8, TWNS. 29 SO. R-13. (PLACER)          303020
Julie White #6        NE1/4SEC. 7, TWNS. 29 SO. R-13. (PLACER)          303021
Julie White #7        NW1/4SEC. 7, TWNS. 29 SO. R-13. (PLACER)          303022
Julie White #8        NE1/4SEC. 12,TWNS. 29 SO. R-14. (PLACER)          303023
Julie White #9        SE1/4SEC. 1, TWNS. 29 SO. R-14. (PLACER)          303024



                                 (LODES CLAIMS)



                                                                  
Julie White #11       NE1/4SEC. 7 & NW1/4SEC. 8,TWNS. 29 SO. R-13 W     302980
Julie White #12       NE1/4SEC. 7 & NW1/4SEC. 8,TWNS. 29 SO. R-13 W     302981
Julie White #13       NW1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302982
Julie White #14       NW1/4& NE1/4SEC. 8, TWNS. 29 SO. R-13 W.          302983
Julie White #15       NW1/4SEC. 8. TWNS. 29 SO. R-13 W.                 302984
Julie White #16       NW1/4& NE1/4SEC. 8, TWNS. 29 SO. R-13 W.          302985
Julie White #17       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302986
Julie White #18       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302987
Julie White #19       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302988
Julie White #20       NE & NW1/4SEC. 8, TWNS. 29 SO. R-13 W.            302989
Julie White #21       NE1/4SEC. 8, TWNS. 29 SO. R-13 W.                 302990
Julie White #22       NE & SE1/4SEC. 8, TWNS. 29 SO. R-13 W.            302991




To The ADDENDUM TO MINING LEASE (WHITE MOUNTAIN)
Page 6 of 5

        Situated in Township 29 South,  Range 13 West,  Township 29 South, Range
14, Salt Lake Meridian, Beaver County, Utah.

End of Exhibit A.