LME 3-month Futures LME Spot/3-month B/C Copper 6255/6265 c 19/15 c Tin 14575/14725 b 405/455 b Lead 2280/2290 c 27/ Zinc 2075/2085 c 29/25 c Aluminium 1930/1940 c 37/33 c Nickel 18700/18900 c 104/54 c