Retailers are running short of the Sh90 maize flour following the end of the six-month import subsidy, setting the stage for a rally in flour prices. Agriculture secretary Willy Bett said the Sh6 billion subsidy would not be extended beyond December 31. Top retailers like Naivas, Choppies and Tuskys say they are clearing old stocks of the Sh90 flour, warning that flour prices would rise. Millers say they have started buying maize at between Sh3, 200 and Sh3,400 for 90kg bag, in what will force them to increase flour prices by at least Sh20.