From The Independent:

What is it about commodities and Asia that attracts rogue traders? A decade after Nick Leeson brought down Barings and Sumitomo’s chief copper trader executed a $1bn fraud, a Chinese copper broker has gone missing.

The man, named as Liu Qibing, is said to have taken out a massive bet that copper prices, which have soared 30 per cent this year, were heading for a fall.

See also “China to sell some copper to battle rising price” from the International Herald Tribune.