ADDENDUM NO. 1 TO PURCHASE-SALE AGREEMENT
dated December 19, 1995
COMPANIA MINERA ORONORTE S.A.("Seller") and NISSHO IWAI CORPORATION ("Buyer")
agreed to make the following amendments to the above agreement.
Clause 5. Quality
Gold and Silver Concentrate of two different types with typical assays as
follows ;
High Grade Concentrate Low Grade Concentrate
---------------------- ---------------------
(HGC) (LGC)
Au 700 - 1,500g/dmt 300 - 550g/dmt
Ag 850 - 1,300g/dmt 600 - 800g/dmt
Cu less than 0.5% same
As less than 1.0% same
Fe 25 - 30% same
S 30% same
Hg less than 125ppm same
Al2O3 less than 1% same
Bi less than 10ppm same
TiO2 less than 1% same
Pb 6 - 7% same
Zn 5 - 9% same
Sb less than 0.5% same
H2O 4 - 6% same
F less than 100 ppm same
Clause 6. Quantity
The quantity of concentrates covered by the agreement shall be the annual
production of EL Limon mine during 1997.
Clause 7. Duration
January 1, 1997 through December 31, 1997
All other terms and conditions of Purchase - Sale Agreement as of December 19,
1995 will remain unchanged.