Final prices in dollars per ton - cash and forward today. Also given are the previous trading day's quotations, according to DPA. # cash forward Copper 3,429.50 ( 3,340.50) 3,467.50 ( 3,377.50) Lead 1,149.50 ( 1,130.50) 1,157.50 ( 1,138.50) Zinc 1,139.00 ( 1,118.00) 1,163.00 ( 1,142.00) Tin 11,560.00 (11,210.00) 11,325.00 (11,050.00) Aluminium 1,105.00 ( 1,100.00) 1,135.00 ( 1,130.00) Nickel 10,425.00 (unavailable) 10,500.00 (10,287.50) #