LME 3-month Futures LME Spot/3-month B/C Copper 6525/6535 c -20.5/ c Tin 14900/15050 b 80/75 b Lead 2330/2340 c 28/23.8 c Zinc 2220/2230 c 28.5/23.5 c Aluminium 1925/1935 c 34.2/32.3 c Nickel 17710/17810 c 75/45 c