Beginning June 5, 2013,
AMM has launched new daily estimated producer spot
selling prices for two key primary aluminum alloys: C355.2 and
A356.2. The new prices differ from AMMs
discontinued 355 (355.2) and 356 (356.2) aluminum alloy prices,
as these new prices are updated daily using a formula-based
methodology intended to better reflect moves in the LME
aluminum price. The new methodology has been developed to
provide a fair, transparent and objective representation of the
The newly launched C355.2 and
A356.2 alloyed aluminum ingot prices are quoted in U.S. dollars
per pound. The prices represent a domestic producer estimated
spot price f.o.b. mill.
The C355.2 and A356.2 prices are
calculated daily using the following formula: LME cash aluminum
official price (ask) + AMM Midwest aluminum premium
(average) + AMM alloy surcharge assessment.
staff assesses the Midwest aluminum premium once a week and
assesses the alloy surcharge once a month. Assessments are
based on actual transaction data collected from buyers and
sellers in the marketplace. Where insufficient transactions
have taken place in the market, AMM reserves the right
to include assessments, bids and offers from market
participants in its assessments of the premium and
AMM has published
historical data on the newly launched prices for the months of
March, April, May and June to date using the new methodology.
The historical data can be found online at amm.com.
Monthly averages for March, April and May are also available
If you have any questions on the newly launched prices or
the discontinued prices, or on how to locate and use the
historical data, please contact