Oxfam said companies like Glencore were "profiting from the misery and suffering of poor people who are worst hit by high and volatile food prices", adding: "If we are going to fix the ailing food system then traders must be part of the cure."
The United Nations, aid agencies and the British Government have lined up to attack the world's largest commodities trading company, Glencore, after it described the current global food crisis and soaring world prices as a "good" business opportunity.