Raw sugar futures settled mixed Thursday on two-way trade in quiet business, with operators betting prices will remain firm due to bullish fundamentals, analysts said. Sugar has been clawing its way higher due to buying from leading importers Russia and India and a widening deficit in the global supply/demand balance. The New York Board of Trade's May raw sugar contract fell 0.03 cent to finish at 9.12 cents a lb, trading from 9.10 to 9.22 cents. July slipped 0.01 to 9.31 cents. Back months were flat to 0.02 cent firmer.