( dpa ) - Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations. # cash forward Copper 7,266.50 ( 7,299.50) 7,260.00 ( 7,282.50) Lead 2,804.00 ( 2,844.00) 2,805.00 ( 2,845.00) Zinc 2,442.50 ( 2,477.00) 2,459.00 ( 2,490.00) Tin 16,715.00 (16,755.00) 16,800.00 (16,825.00) Aluminium 2,415.00 ( 2,410.00) 2,440.00 ( 2,435.00) Mickel 26,687.50 (27,355.00) 26,912.50 (27,575.00)