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    latest price off LME     sopt/3-month premium and discount 
Aluminium  2308.0/2309.0               -14       c
Lead  2390.0/2395.0               -13       c
Zinc   2274.0/2274.5                -1       c
Tin 25775.0/25800.0               -5       c
Nickel  23980.0/23985.0              -60       c
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  "c "stands for premium

"b"stands for discount