LME 3-month Futures    LME Spot/3-month B/C

Copper  3470/3490           c   50 / 40     c 
Tin 11100/11600          b    30 /50    b
Lead  1180/1190            c 19   / 10    c
Zinc  1180/1190        c     15/19     c
Aluminium  1780/1790        c   58/52   c   
Nickel 10000/10100       c    250/140    c

c for contango£¬b for backwardation