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

Copper   7515/7525       c       36/31.3       c

Tin 17375/17525     c     ¡¡89/69        c

¡¡Lead  2565/2575       c       33/28.3       c

Zinc   2570/2580       c       34.5/29.5     c

Aluminium  2290/2300       c       35.2/33.3     c

Nickel  18850/18950     c       90/60         c

c for contango£¬b for backwardation