Unit: dollars/ ton
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LME Out Price   LME Spot Price/b/c in 3-month
Copper   4550.0/4562.5      -30.5      c
Aluminium   1530.0/1438.0        -38      c
Lead   1400.3/1408.0       -3.5      c
Zinc   1383.0/1398.0        -29      c
Tin  10875.0/10950.0       250      b
Nickel  10945.0/11025.0      -140      c
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c for contango£¬b for backwardation