Cotton futures moved down a smidgen on Tuesday, marking their 13th straight down session, as speculation built that China's government may soon start selling from its mammoth reserves and cut demand for foreign fiber in the world's top consumer.
The most-active December cotton contract on ICE Futures U.S. closed down 0.01 cent, or 0.01 percent, at 75.94 cents a lb.
Spot prices eased to an intraday low of 75.27 cents, the weakest level since January.
(Read more: Retailers Keep a Close Eye on Cotton Prices)
Rumors circulated that Beijing may soon begin selling its stocks and may be planning other policy changes that would leave the world flooded with excess cotton supplies.
A government stockpiling program launched in 2011 has driven voracious demand for foreign fiber, put a floor under global cotton prices, and left China with a growing hold on global inventories.