EX-4
from 10QSB
1 page
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
12/34/56
