LME Al up 1.03%, Cu up 6.18%, Lead up 3.91%, Ni up 4.18%, Tin up 3.18%, Zn up 3.12%, Copper prices jumped the most since August on signs of increasing demand as bank loans increased in China, the world’s biggest user of industrial metals. (Copper has dropped 6.4 percent this year on signs of increasing supplies. Inventories in warehouses monitored by the London Metal Exchange have climbed 8.6 percent in 2010. On the LME, copper for delivery in three months jumped 6.2 percent to $6,939 a metric ton ($3.15 a pound), the biggest gain since March 19. Zinc, nickel, lead, tin and aluminum also climbed. An index that measures the six metals advanced 4.7 percent, the most since Nov. 16. )