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

Copper  3650/3670       c   27.5/22.5   c
Tin 12275/12475      b    295/315    b
Lead  1105/1115       c     11/6      c
Zinc 1193/1203       b    2.3/3.8    b
Aluminium  1765/1775       c     51/46     c
Nickel 9900/10100       c    120/90     c

c for contango£¬b for backwardation