Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations, according to dpa. # cash forward Copper 6,312.00 ( 6,129.50) 6,315.00 ( 6,142.50) Lead 1,872.50 ( 1,870.00) 1,842.50 ( 1,840.00) Zinc SH 3,388.00 ( 3,348.00) 3,395.00 ( 3,360.00) Tin 13,835.00 (13,780.00) 13,775.00 (13,725.00) Aluminium HG 2,190.00 ( 2,170.00) 2,220.00 ( 2,200.00) Nickel 45,500.00 (44,875.00) 42,975.00 (42,275.00)