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Exhibit 10.7

(English Translation)

SIGHT LOAN
JORGE ORELLANA E.I.R.L.
TO
MINERA LICANCABUR S.A.

In Santiago de Chile on September 11, 2008, there appears JORGE ORELLANA
E.I.R.L., RUT No. 76,458,450-3, represented by JORGE OSVALDO ORELLANA ORELLANA,
IDENTITY CARD No. 6,784,858-6, for these purposes both domiciled at LATORRE No.
2077, CALAMA, and in transit in this city, hereinafter “LENDER,” and MINERA
LICANCABUR S.A., RUT No. 76,009,516-8, represented by JORGE OSVALDO ORELLANA
ORELLANA, IDENTITY CARD No. 6,784,858-6, domiciled at LA PASTORA No. 121, OFFICE
201, LAS CONDES, hereinafter the “BORROWER,” the deponents being of legal age,
who prove their identity with the aforementioned identity cards and state:

ONE: JORGE ORELLANA E.I.R.L. delivers to MINERA LICANCABUR S.A. the amount of
$200,000,000 (TWO HUNDRED MILLION PESOS), which it receives to its full
satisfaction accepts for itself.

TWO: MINERA LICANCABUR S.A. undertakes and promises to refund the amount
received on sight, without interest and without defined term.

THREE: The expenses and taxes levied on this loan contract will be paid by the
borrower.

FOUR: For all legal purposes, the parties establish domicile in the community of
Santiago in the Metropolitan Area.

The tax levied on this loan was paid by form 24.1 FOLIO 0544782

[stamp:]   ANTONIETA MENDOZA ESCALAS   NOTARY   CHILE   [signature]
[fingerprint]

[signature] [fingerprint]

JORGE ORELLANA E.I.R.L.

MINERA LICANCABUR S.A.

I certify the signature of JORGE OSVALDO ORELLANA ORELLANA, IDENTITY CARD No.
6,784,858-6, in representation of JORGE ORELLANA E.I.R.L., as Lender, and in
representation of MINERA LICANCABUR S.A., as Borrower

SANTIAGO, SEPTEMBER 11, 2008.

[stamp:]
ANTONIETA MENDOZA ESCALAS
NOTARY PUBLIC
16th NOTARY OF SANTIAGO

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