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BENEFIT PLANS:
9 Months Ended
Sep. 30, 2011
BENEFIT PLANS: 
BENEFIT PLANS:

 

 

NOTE 12 — BENEFIT PLANS:

 

SCC Defined Benefit Pension Plans

 

The components of the net periodic benefit costs for the nine months ended September 30, 2011 and 2010 are as follows (in millions):

 

 

 

2011

 

2010

 

Interest cost

 

$

0.4

 

$

0.5

 

Expected return on plan assets

 

(0.5

)

(0.5

)

Amortization of net loss (gain)

 

0.1

 

—

 

Net periodic benefit costs

 

$

—

 

$

—

 

 

SCC Post-retirement Health Care Plan

 

The components of the net periodic benefit costs for the post-retirement health care plan for the nine months ended September 30, 2011 and 2010 are individually, and in total, less than $0.1 million.

 

Minera Mexico Pension Plans

 

The components of the net periodic benefit costs for the nine months ended September 30, 2011 and 2010 are as follows (in millions):

 

 

 

2011

 

2010

 

Interest cost

 

$

0.5

 

$

1.2

 

Service cost

 

0.8

 

1.5

 

Expected return on plan assets

 

(2.5

)

(2.2

)

Amortization of transition assets, net

 

(0.1

)

—

 

Amortization of net actuarial loss

 

(1.1

)

(0.7

)

Amortization of prior services cost

 

—

 

0.1

 

Net periodic benefit cost

 

$

(2.4

)

$

(0.1

)

 

Minera Mexico Post-retirement Health Care Plan

 

The components of the net periodic cost for the nine months ended September 30, 2011 and 2010 are as follows (in millions):

 

 

 

2011

 

2010

 

Interest cost

 

$

2.8

 

$

3.2

 

Service cost

 

—

 

0.3

 

Amortization of net loss (gain)

 

—

 

0.1

 

Amortization of transition obligation

 

1.1

 

1.0

 

Net periodic benefit cost

 

$

3.9

 

$

4.6