Final prices in dollars per ton - cash and forward. Also given are the previous trading day"s quotations, according to dpa. # cash forward Copper 7,439.50 ( 7,591.50) 7,467.50 ( 7,617.50) Lead 2,420.50 ( 2,534.50) 2,447.50 ( 2,562.50) Zinc 2,490.50 ( 2,540.50) 2,522.50 ( 2,572.50) Tin 17,975.00 (17,875.00) 18,050.00 (17,950.00) Aluminium 1,965.00 ( 2,015.00) 1,995.00 ( 2,045.00) Nickel 17,675.00 (17,862.50) 17,750.00 (17,937.50) #