At a time when the London Metal Exchange is the closest it has ever been to entering China, the rival Shanghai Futures Exchange is looking for a bigger share of the $20.6 trillion global market in metals futures.
 

While the LME already handled $14.5 trillion of trade last year, backed by a network of more than 700 warehouses in 36 locations that ensure physical delivery, Chinese regulations from 2008 mean it has no depot in the biggest metal-consuming nation.