Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations. # cash forward Copper 5,420.50 ( 5,515.50) 5,432.50 ( 5,522.50) Lead 1,727.50 ( 1,757.00) 1,748.50 ( 1,777.50) Zinc 1,611.50 ( 1,671.00) 1,637.50 ( 1,696.00) Tin 14,335.00 (14,675.00) 14,075.00 (14,425.00) Aluminium 1,630.00 (1,670.00*) 1,655.00 (1,695.00*) Nickel 16,217.50 (16,655.00) 16,287.50 (16,725.00) * quotation from July 27 #