Unit: dollars/ ton
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LME Out Price   LME Spot Price/b/c in 3-month
Copper   3235.0/3240.0      -38.5      c
Aluminium   1336.0/1337.0        -36      c
Lead   1067.0/1069.0        -10      c
Zinc   1120.0/1121.0        -27      c
Tin  10750.0/10775.0       230      b
Nickel   9700.0/9705.0        -80      c
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c for contango£¬b for backwardation