Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations, according to dpa. # cash forward Copper 6,127.50 ( 6,323.50) 6,142.50 ( 6,337.50) Lead 2,067.50 ( 2,145.50) 2,092.50 ( 2,167.50) Zinc 1,827.50 ( 1,903.50) 1,852.50 ( 1,927.50) Tin 14,750.00 (15,025.00) 14,200.00 (14,475.00) Aluminium 1,655.00 ( 1,665.00) 1,685.00 ( 1,695.00) Nickel 16,535.00 (17,390.00) 16,585.00 (17,425.00) #