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December 20, 1996


KENNECOTT UTAH COPPER CORPORATION
P.O. BOX 11248
SALT LAKE CITY, UTAH  84147

KENNECOTT UTAH COPPER CORPORATION (Seller) hereby agrees to sell and deliver,
and SUMMO USA CORPORATION, San Juan County, UT (Buyer) agrees to purchase and
receive the products on terms and subject to conditions specified below and on
the reverse side of this Agreement.

     KC#                  3732

     Product:             Approximately 93% Sulfuric Acid, no specifications

     Quantity:            Nominal 50,000 short tons per year, 100% basis 
                          H(2)SO(4)

     Price:               For the first 24 months of deliveries, $35.00/st. 100%
                          basis, f.o.b. Destination, delivered via truck.  Price
                          will be adjusted at the beginning of the 25th month of
                          deliveries and annually thereafter, for one year of
                          escalation or de-escalation, by the most recent
                          Consumer Price Index that is available at that time.

     Delivery Period:     60 months beginning with start up of BUYER's Lisbon
                          Valley Mine.  Start up is estimated to be in January
                          1998.

     Delivery Schedule:   Pursuant to Summo Corporation's requirements, subject
                          to Kennecott Utah Copper Corporation's approval.

     Deliver Destination: Summo USA Corporation, Lisbon Valley Mine in San Juan
                          County, Utah.

     Unloading Period:    For truck shipments, a maximum two-hour unloading
                          period is allowed after arrival at destination, on a
                          24-hour basis, 7 days per week.

     Payment terms:       30 days from date of shipment.

     Payment              In U.S. Dollars by check to:

                              Kennecott Utah Copper Corporation
                              P.O. Box 224
                              Magna, UT   84044-0224

BUYER ACKNOWLEDGES THAT IT HAS READ THE TERMS AND CONDITIONS ON THE STANDARD
KENNECOTT CONTRACT ON THE REVERSE SIDE OF THIS AGREEMENT AND BY SIGNING BELOW
AGREES TO BE BOUND BY THESE TERMS AND CONDITIONS.


ACCEPTED   December 30  1996
         ----------------------

SUMMO USA CORPORATION                   KENNECOTT UTAH COPPER CORPORATION


BY  Robert A. Prescott                  BY  David A. Litum
   -----------------------------           ------------------------------
      OFFICER OF CORPORATION                  DIRECTOR-BYPRODUCT SALES

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The SELLER and BUYER agree that the following terms and conditions govern the
sale of the Product:

1.   TAXES:  All Federal, State or local taxes (except income taxes) now or
hereafter imposed in respect to this order, or any transaction involved herein
and/or the Production sale, use consumption, delivery, transportation of the
Product shall be for account of the BUYER, and if paid or required to be paid by
the SELLER, the amount thereof shall be added to and become a part of the price
payable to the BUYER hereunder.

2.   FINANCIAL RESPONSIBILITY:  If, in the reasonable opinion of SELLER, the
credit or financial responsibility of BUYER is, or becomes, impaired or
unsatisfactory, SELLER reserves the right to demand cash or satisfactory
security before making shipment.  If BUYER fails to provide cash or satisfactory
security to fully satisfy SELLER's demands, such failure shall constitute a
breach of the Agreement, and SELLER shall have the right to withhold further
shipments and/or to cancel this Agreement or any part of this Agreement at the
option of SELLER, without any liability or obligations on the SELLER.  Such
withholding of shipments and/or cancellation, however, shall not affect the
BUYER's liability for damages, including the costs associated with reshipment of
tank railcars or tank trucks due to BUYER's failure to meet its financial
responsibilities.  Additionally, SELLER reserves the right to possession of the
Product and the right to stop Product in transit.  The acceptance by SELLER of
any payment less than the full amount due shall not be a waiver of any rights of
SELLER.

3.   PAYMENT:  Payment of the price shall be made in lawful money of the United
States, as per the Payment Terms specified on the front of this document.  If
payment is not made when due, or in the manner herein provided, SELLER may at
its option, without notice, cancel this Agreement as to all or any part of the
unfilled quantity.  Sales and use taxes paid or required to be paid by the
SELLER, which are part of the price pursuant to Paragraph 1, shall be included
in the billing for the Product delivery.  All other taxes which become part of
the price pursuant to Paragraph 1, the amount of which cannot be determined on
the invoice date, will be billed when they become known and will be payable
within thirty (30) days of billing date.

4.   TITLE:  Unless otherwise specified, title to and risk of loss of any
shipment of Product shall pass from SELLER to BUYER FOB railroad tank car or
tank truck at the destination point unless BUYER supplies the equipment to
transport the Product, in which case title and risk of loss shall pass FOB
railroad tank car or tank truck at loading point.

5.   LIABILITY: SELLER assumes no responsibility for the condition of trucks,
tank cars and related equipment supplied by BUYER.  SELLER is not responsible
for, and BUYER agrees to indemnify, defend, and save harmless the SELLER against
any, and all liabilities, claims, investigations, suits, causes of action,
judgments, losses, penalties, costs or expenses (including, without limitation,
reasonable attorneys fees) (collectively, "Liabilities"), arising out of or in
consequence of, or alleged to have arisen out of or in consequence of, in whole
or in part 1) any breach or default by the BUYER of the terms or conditions of
this Agreement, 2) any and all negligent acts by the BUYER, 3) any and all civil
or criminal breaches or violations or statutes, regulations, ordinances, or
otherwise by the BUYER, 4) any and all Liabilities predicated on theories of
strict liability, whether imposed or arising under a statute, ordinance,
regulation, or at common law or otherwise by the BUYER, 5) any and all improper
acts of loading, transporting, storage, handling, or application of the Product
by the BUYER, or, 5) any subsequent resale of the Product or other disposal by
the BUYER, including, but not limited to, any and all representations or
warranties that the BUYER makes to a third party in the course of the resale or
other disposal of the Product, or 7) any and all other acts or omissions of
BUYER, whether arising under this contract or otherwise, which result in
Liabilities to the SELLER.  BUYER hereby assumes liability for, and shall
reimburse SELLER for, all damage to, and all loss or description of, any private
tank car or tank truck (including the fittings and appurtenances thereto)
occurring while said tank car or tank truck is in the possession of BUYER,
except when such damage, loss or destruction does not result from the negligence
or default of BUYER.  BUYER's reimbursement of SELLER hereunder shall be limited
to the lessor of: (a) the actual cost to SELLER of repairing, reconditioning or
replacing said tank car or tank truck, or (b) the actual depreciated cash value
of said tank car or tank truck at the time of such damage, loss or destruction.
BUYER shall report promptly to SELLER all damage to, or loss or destruction of,
any such tank car or tank truck, howsoever arising, occurring while such tank
car or tank truck is in the possession or under the control of BUYER.

6.   WARRANTY:  Attached to this Agreement is a Composite Analysis, for the
dates indicated, of the Product.  SELLER OR PRODUCER MAKE NO EXPRESS OR IMPLIED
WARRANTIES OF ANY KIND, INCLUDING WHETHER THE PRODUCT CONFORMS TO THE ATTACHED
COMPOSITE ANALYSIS.  NO WARRANTY BY SELLER OR PRODUCER (OTHER THAN WARRANTY OF
TITLE AS PROVIDED IN THE UNIFORM COMMERCIAL CODE) SHALL BE IMPLIED OR OTHERWISE
CREATED UNDER THE UNIFORM COMMERCIAL CODE INCLUDING, BUT NOT LIMITED TO,
WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

7.   NOTICE:  The BUYER shall give written notice of any claim for any cause
whatsoever within ten (10) days after arrival of any shipment at destination,
and failure to do so shall constitute a waiver by the BUYER of all claims with
respect to such shipment.  For any defect of quality established, SELLER's
liability shall be limited to replacing any defective acid delivered hereunder
and in no event shall SELLER incur liability for defects or damage to Products
in which acid delivered hereunder is used or for any other kind of
consequential, nominal, or incidental damages.

8.   INVOICE: SELLER shall invoice BUYER for each delivery on the basis of price
provided herein, and each such delivery shall constitute a separate and
independent sale.  SELLER's weights and analyses shall govern unless proven to
be in error.

9.   MUTUALLY AGREED PRODUCER: BUYER agrees that SELLER may meet its commitments
under this Agreement by having a mutually agreed producer deliver Product on
behalf of SELLER, so long as the agreed producer otherwise agrees to meet the
terms and conditions of this Agreement.

10.  FORCE MAJEURE: This Agreement is subject to the following conditions of
force majeure.  Any strike, lockout, difference with workmen, accident, fire,
explosion, flood, earthquake, storm, unavoidable accident, mechanical breakdown
(including shutdowns for maintenance and inventorying) mobilization, war
(whether declared or undeclared), riot, rebellion, revolution, requirement,
regulation, restriction, or other act of any government, whether legal or
otherwise, the elements, inability to secure or delay in securing fuel, or other
supplies or materials, or power, necessary for the operation of the mines and
plants where the Product sold hereunder is produced or consumed, economic
shutdown of SELLER's or BUYER's mine or plant facilities, delays or interruption
to, or destruction of mines or plants of SELLER or BUYER, or any other acts
beyond the control of the parties, whether or not of the nature or character
hereinabove specifically enumerated which delays or interferes with the
performance of this Agreement shall be considered sufficient justification for
delay in making shipments, delivery or performance hereunder, in whole or in
part, until such cause ceases to exist; and this Agreement shall be deemed
suspended as long as such cause prevents or delays its execution.  Neither party
shall be responsible for or liable to the other for damages or expenses incurred
or sustained because of any delay or failure to perform because of a condition
of force majeure.  If under any of the conditions set forth in this Paragraph,
supplies of sulfuric acid available to SELLER are insufficient to complete
delivery of orders accepted by SELLER prior to the occurrence of the condition
or to SELLER's nominated long term regular contract customers.  SELLER shall
allocate available supplies pro rata to such long term customers until such
customers' contractual requirements are met by SELLER, and then SELLER may, at
its option, allocate available supplies (having first satisfied the long term
customers' contractual requirements) in a manner it deems suitable, without
liability for any damages sustained by BUYER.  A nominated long term regular
contract customer is a minimum annual tonnage commitment of 50,000 sl or more
and five (5) years or longer in original contract duration.  BUYER shall
allocate purchased supplies pro rata to such long term suppliers until such
suppliers' contractual requirements are met by BUYER, and then BUYER may at its
option allocate purchases (having first satisfied the long term suppliers
contractual requirements) in a manner it deems suitable without liability for
damages sustained by supplier.  If deliveries are interrupted or delayed for any
condition of force majeure, the amount of Product which is not delivered at the
regular order rate during the period of any such suspension or reduction shall,
at the option of SELLER, be deducted from the full amount which otherwise would
have been delivered under this order in which event SELLER shall not be
obligated to make up such omitted deliveries either during the order period or
after termination thereof.  It is understood and agreed that SELLER shall be
under no obligation to operate its copper smelters nor will it be under any
obligation to operate its sulfuric acid plants except as, and to the extent
that, it shall have available for that purpose sulfurous cases of commercial
grade, produced in the course of operating its smelter and lack of such gases
shall be deemed a cause beyond SELLER's control and subject to the Force Majeure
provision and, notwithstanding paragraph 9 of this Agreement, SELLER is not
obligated to find another producer to meet its obligations under a condition of
force majeure.

11.  HAZARDS: BUYER acknowledges that there are hazards associated with the use
of the Product.  BUYER agrees to make its personnel concerned with the Product
aware of the hazards and assumes all responsibility for the warning of its
employees and independent contractors of all hazards to persons and property in
any way connected with Product.  BUYER also assumes all responsibility for the
risks of using Product in combination with other articles or substances and in
any manufacturing process.  The SELLER shall not be liable to the BUYER for any
consequential, nominal, or incidental damages, including lost profits, arising
out of the use, handling, storage, or any application or activity related to the
Product.  The SELLER shall not be liable to the BUYER for compensation,
reimbursement or damages on account of loss of prospective profits or
anticipated sales or on account of expenditures, investments or commitments in
connection with the business or good will of the BUYER caused by failure of
Product to conform to the specifications herein set forth.

12.  CLAIMS: The BUYER will promptly notify the SELLER in writing of any
claims, demands, suit, action, or proceeding with respect to the Product.

13.  GOVERNING LAW: This Agreement shall be deemed to be made under and shall be
governed by the laws of the Sale of Utah in all respects, including matters of
construction, validity, and performance.

14.  ENTIRE AGREEMENT: This Agreement constitutes the entire Agreement between
the parties as to the subject matter hereof and may not be changed or modified
except by signed writing by the SELLER and BUYER.

15.  AFFILIATES: This Agreement inures to the benefit of affiliates,
subsidiaries, or parents of the parties.

16.  SURVIVAL: The provisions of paragraphs 2, 3, 5 and 11 above survive
termination of this Agreement.

17.  PRICE PROTECTION: If, after the interval designated in the contract, BUYER
is offered material of equal quality by a responsible domestic manufacturer for
delivery to the same destination on like terms and conditions as herein provided
in quantities adequate to fulfill the entire commitment to deliver product
during the entire remaining term (time left) of this contract at a lower
delivered cost to BUYER than the delivered cost hereunder.  SELLER, within
thirty days of receipt of written evidence of same, shall either meet such lower
delivered cost or release BUYER from their obligation to purchase by cancelling
this contract.  The written evidence shall be in the form of a signed proposal
to sell sulfuric acid to BUYER on the corporate stationery of the manufacturer
or distributor.  It must contain the price for sulfuric acid delivered to
BUYER's facilities, the provision for changing the price, the volume offered,
the term (dates the supply is to commence and end), and the product
specifications.