Final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations, according to dpa. # cash forward Copper 3,455.50 ( 3,305.50) 3,487.50 ( 3,337.50) Lead 1,156.00 ( 1,139.50) 1,165.00 ( 1,147.50) Zinc 1,137.00 ( 1,125.00) 1,160.00 ( 1,147.50) Tin 11,235.00 (11,135.00) 11,175.00 (11,075.00) Aluminium 1,090.00 ( 1,070.00) 1,125.00 ( 1,105.00) Nickel 11,615.00 (11,352.50) 11,675.00 (11,412.50) #