Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations, according to dpa. # cash forward Copper 6,484.50 ( 6,472.50) 6,522.50 ( 6,512.50) Lead 2,835.00 ( 2,920.00) 2,830.00 ( 2,902.50) Zinc 2,221.50 ( 2,243.50) 2,217.50 ( 2,245.00) Tin 16,117.50 (15,945.00) 16,225.00 (16,070.00) Aluminium 2,250.00 ( 2,270.00) 2,290.00 ( 2,310.00) Nickel 28,972.50 (29,325.00) 29,262.50 (29,650.00) #