Futures contracts of sugar 11 fell to a one-month low of 13.11 cents a pound on the ICE due to a higher-than-expected rise in the output of sugar in the Centre-South region of Brazil. The October contract of sugar 11 ended at 13.21 cents a pound, down 3.9%, while the most active March futures closed 3.1% lower at 13.91 cents a pound.