Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotation, according to dpa. # cash forward Copper 4,797.00 ( 4,634.00) 4,805.00 ( 4,662.50) Lead 1,531.50 ( 1,428.50) 1,532.50 ( 1,432.50) Zinc 1,463.50 ( 1,398.00) 1,496.50 ( 1,429.00) Tin 11,475.00 (11,030.00) 11,375.00 (10,950.00) Aluminium 1,380.00 ( 1,380.00) 1,405.00 ( 1,405.00) Nickel 12,175.00 (11,337.50) 12,275.00 (11,437.50) #