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Forward Delivery Contracts and Financial Instruments
12 Months Ended
Dec. 31, 2011
Forward Delivery Contracts and Financial Instruments [Abstract]  
Forward Delivery Contracts and Financial Instruments
16.
Forward delivery contracts and financial instruments
 
As a producer of primary aluminum, we are exposed to fluctuating raw material and primary aluminum prices.  We enter into fixed and market priced contracts for the sale of primary aluminum and the purchase of raw materials in future periods.

Forward Physical Delivery Agreements
 
Primary Aluminum Sales Contracts
 
Contract
Customer
Volume
Term
Pricing
Glencore Metal Agreement (1)
Glencore
20,400 mtpy
Through December 31, 2013
Variable, based on U.S. Midwest market
Glencore Sweep Agreement (2)
Glencore
Surplus primary aluminum produced in the United States
Through December 31, 2012
Variable, based on U.S. Midwest market
Glencore Nordural Metal Agreement
Glencore
Approximately 16,000 metric tons
Through December 31, 2012
Variable, based on LME
Southwire Metal Agreement (3)
Southwire
240 million pounds per year (high conductivity molten aluminum)
Through December 31, 2013
Variable, based on U.S. Midwest market


(1)
We account for the Glencore Metal Agreement as a derivative instrument under ASC 815.  Under the Glencore Metal Agreement, pricing is based on then-current Midwest market prices, adjusted by a negotiated U.S. Midwest premium with a cap and a floor as applied to the current U.S. Midwest premium.
(2)
The Glencore Sweep Agreement is for all metal produced in the U.S. in 2012, less existing sales agreements and high-purity metal sales.  The term of the contract may be extended for one year upon mutual agreement.
(3)
The Southwire Metal Agreement contract contains termination rights in the event of a partial or full curtailment of the Hawesville facility.

Long-term Tolling Contracts

 
Contract
 
Customer
 
Volume
 
Term
 
Pricing
Billiton Tolling Agreement (1)
BHP Billiton
130,000 mtpy
Through December 31, 2013
LME-based
Glencore Toll Agreement (1)
Glencore
90,000 mtpy
Through July 31, 2016
LME-based
Glencore Toll Agreement (1)
Glencore
40,000 mtpy
Through December 31, 2014
LME-based

(1)
Grundartangi's tolling revenues include a premium based on the EU import duty for primary aluminum.
 
Apart from the Glencore Metal Agreement, Glencore Sweep Agreement, Glencore Nordural Metal Agreement and the Southwire Metal Agreements, we had forward delivery contracts to sell 41,504 metric tons and 47,926 metric tons of primary aluminum at December 31, 2011 and 2010, respectively.  Of these forward delivery contracts, we had fixed price commitments to sell 41 metric tons and 117 metric tons of primary aluminum at December 31, 2011 and 2010, respectively, of which none were with Glencore at December 31, 2011 and 2010.

Forward Financial Instruments
 
We are party to various forward financial and physical delivery contracts that are accounted for as derivative instruments.  See Note 5 Derivative and hedging instruments for additional information about these instruments