Unit£ºDollar/Ton
------------------------------------------
      latest price off LME       sopt/3-month premium and discount
Copper  7355.0/7360.0        -36        c
Aluminum  2200.0/2201.0        -33        c
Lead  2227.0/2230.0        -25        c
Zinc  2268.0/2269.0        -32        c
Tin 18150.0/18160.0       -70        c
Nickel 25350.0/25400.0       -60        c
------------------------------------------
c stands for premium
b stands for discount