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INTANGIBLE ASSETS:
12 Months Ended
Dec. 31, 2011
INTANGIBLE ASSETS:  
INTANGIBLE ASSETS:

NOTE 7-INTANGIBLE ASSETS:

 

 

 

As of December 31,

 

(in millions)

 

2011

 

2010

 

Mining concessions

 

$

121.2

 

$

121.2

 

Mine engineering and development studies

 

6.0

 

6.0

 

Software

 

7.8

 

7.6

 

 

 

135.0

 

134.8

 

Accumulated amortization

 

(41.6

)

(39.5

)

 

 

 

 

 

 

Goodwill

 

17.0

 

17.0

 

Intangible assets, net

 

$

110.4

 

$

112.3

 

 

Amortization of intangibles in the last three years and estimated amortization are as follows (in millions):

 

Amortization expense:

 

 

 

2011

 

$

2.1

 

2010

 

$

2.1

 

2009

 

$

2.4

 

 

 

 

 

Estimated amortization expense:

 

 

 

2012-2016

 

$

11.9

 

Average annual

 

$

2.4

 

 

The goodwill was generated in 1997 as a result of purchasing a third party interest in the Buenavista mine.