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BENEFIT PLANS:
 3 Months Ended
Mar. 31, 2012
BENEFIT PLANS:  
BENEFIT PLANS:

NOTE 9 — BENEFIT PLANS:

 

SCC Defined Benefit Pension Plans

 

The components of the net periodic benefit costs for the three months ended March 31, 2012 and 2011 are as follows (in millions):

 

 

 

2012

 

2011

 

Interest cost

 

$

0.1

 

$

0.1

 

Expected return on plan assets

 

(0.2

)

(0.2

)

Amortization of net loss (gain)

 

(*

)

(*

)

Net periodic benefit costs

 

$

(*

)

$

(*

)

 

 

(*) amount is lower than $0.1 million

 

SCC Post-retirement Health Care Plan

 

The components of the net periodic benefit costs for the post-retirement health care plan for the three months ended March 31, 2012 and 2011 are individually, and in total, less than $0.1 million.

 

Minera Mexico Pension Plans

 

The components of the net periodic benefit costs for the three months ended March 31, 2012 and 2011 are as follows (in millions):

 

 

 

2012

 

2011

 

 

 

 

 

 

 

Interest cost

 

$

0.2

 

$

0.2

 

Service cost

 

0.3

 

0.3

 

Expected return on plan assets

 

(0.7

)

(0.8

)

Amortization of transition assets, net

 

(*

)

(*

)

Amortization of net actuarial loss

 

(0.2

)

(0.4

)

Amortization of prior services cost

 

(*

)

(*

)

Net periodic benefit cost

 

$

(0.4

)

$

(0.7

)

 

(*) amount is lower than $0.1 million

 

Minera Mexico Post-retirement Health Care Plan

 

The components of the net periodic benefit cost for the three months ended March 31, 2012 and 2011 are as follows (in millions):

 

 

 

2012

 

2011

 

 

 

 

 

 

 

Interest cost

 

$

0.4

 

$

0.9

 

Service cost

 

—

 

(*

)

Amortization of net loss (gain)

 

(0.1

)

(*

)

Amortization of transition obligation

 

—

 

0.4

 

Net periodic benefit cost

 

$

0.3

 

$

1.3

 

 

 

(*) amount is lower than $0.1 million