Today's final prices in dollars per ton - cash and forward. Also given are the previous trading day's quotations, according to dpa. # cash forward Copper 4,678.00 ( 4,645.50) 4,693.00 ( 4,652.50) Lead 1,440.00 ( 1,438.50) 1,451.50 ( 1,447.50) Zinc SH 1,441.00 ( 1,453.50) 1,466.00 ( 1,479.50) Tin 13,787.50 (13,375.00) 13,587.50 (13,450.00) Aluminium 1,175.00 ( no data ) 1,205.00 ( no data ) Nickel 13,450.00 (13,930.00) 13,525.00 ( no data ) #