Amendment No. 2 To Option to Purchase Contract for Mining Property From Minera Farellón Limitada To Minera Polymet Limitada Dated October 10, 2008 Signed in Vallenar on April 7, 2009

EXHIBIT 10.2

Amendment No. 2

To

Option to Purchase Contract for Mining Property

From Minera Farellón Limitada

To Minera Polymet Limitada

Dated October 10, 2008

Signed in Vallenar on April 7, 2009

As of April 7, 2009, for valuable consideration, the parties agree to amend:

1. Article II: (3) Option Term: to change the date “April 10, 2009” to “October 10, 2009”,

2. Article IV: Transfer of Royalty: to change the date “April 10, 2009” to October 10. 2009”, and

3. Article VII: Payment of the sale price: to change the date “April 10, 2009” to “October 10, 2009”.

All other terms and conditions of the option to purchase are unchanged except as they must be changed to accommodate these changes.

/s/ Xxxxx Xxxxxx Xxxxxxxx

Xxxxx Xxxxxx Xxxxxxxx

CIE 14 498 917-1

Representing Minera Farellón Limitada

RUT 76 814 170-3

/s/ Xxxxx Xxxxxx Xxxxxxxx

Xxxxx Xxxxxx Xxxxxxxx

CIE 14 498 917-1

Representing Minera Polymet Limitada

RUT 76 975 260-9