NINTH AMENDMENT TO CAMPBELL/SIMPSON TONKIN SPRINGS VENTURE
LIMITED PARTNERSHIP TONKIN MINERAL LEASE
This Amendment Number Nine dated this 22nd day of January, 1993, (“Effective Date”) to that certain
Tonkin Mineral Lease dated January 1, 1986 (the “Lease”) between LYLE F. CAMPBELL, a single man, and
JULIAN E. SIMPSON and JEAN C. SIMPSON, husband and wife (collectively “Lessor”) and TONKIN
SPRINGS VENTURE LIMITED PARTNERSHIP and U.S. GOLD CORPORATION (collectively, the
A. DENAY MINING COMPANY has withdrawn from the TONKIN SPRINGS VENTURE
B. Lessee desires to amend the Lease to postpone payment of the 1993 advance minimum royalty of
the greater of $150,000.00 and the Dollar Equivalent of 455 ounces of gold, until March 31, 1993.
C. Lessor is willing to agree to postponement of the payment of the advance minimum royalty until
March 31, 1993 in consideration for other amendments to the Lease.
WHEREFORE, the parties in consideration of the mutual covenants and conditions below agree as follows:
1. The first paragraph of Article 3 of the Lease and the Advance Minimum Royalty
Schedule immediately following said first paragraph of Article 3 are amended to read as follows:
“3. Advance Minimum Royalty . Lessee shall pay to Lessor as advance minimum royalty
(“Advance Minimum Royalty”) the following amounts on the following dates:
* The term “Dollar equivalent” is defined below in this Article.
2. 3. The first sentence of the first paragraph of Article 8 of the Lease is revised to read as follows:
“To the extent required by law to hold the unpatented mining claims subject to this Lease in good standing,
and subject to
Due Date of Advance
Minimum Royalty Payment
Amount of Advance