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CONCENTRATION OF RISK: (Tables)
 12 Months Ended
Dec. 31, 2013
CONCENTRATION OF RISK:  
Schedule of concentration risk for cash equivalents invested

At December 31, 2013, SCC had invested its cash and cash equivalents as follows:

 

 

 

 

 

% of total

 

% in one institution

 

Country

 

$ in million

 

cash (1)

 

of country

 

of total cash

 

United States

 

$

1,020.0

 

54.2

%

45.8

%

24.9

%

Peru

 

94.0

 

5.0

%

73.7

%

3.7

%

Mexico

 

147.1

 

7.8

%

95.1

%

7.4

%

Switzerland

 

619.9

 

33.0

%

100.0

%

33.0

%

Total cash and short-term investment

 

$

1,881.0

 

100.0

%

 

 

 

 

 

(1)               98.7% of the Company’s cash is in U.S. dollars.

 
Schedule of company's largest customers as percentage of accounts receivable and total sales

 

 

 

 

2013

 

2012

 

2011

 

Accounts receivable trade as of December 31,

 

 

 

 

 

 

 

Five largest customers

 

37.1

%

40.0

%

35.9

%

Largest customer

 

12.2

%

10.4

%

10.8

%

 

 

 

 

 

 

 

 

Total sales in year

 

 

 

 

 

 

 

Five largest customers

 

28.7

%

28.8

%

28.7

%

Largest customer

 

8.4

%

7.4

%

7.3

%