Sugar prices in the past few months have pulled back because of the weaker oil price. Now that oil is at around $70 a barrel, sugar has to follow.

Industrial demand for silver has been lagging significantly since it went over $11.

Fundamentally, the market looks strong and there are no signs of a sharp sell-off in the offing. We can't see a top to the market.

Ethanol fever has sugar prices up.

We lowered prices so significantly over the last 15 months, there have been five significant price reductions,

Shell is profiting from the current high oil prices, but we are all paying the price. Oil companies must be forced to face up to their wider responsibilities - on climate change, on the environment and on human rights.