Sam's club, Costco limit rice purchases--recent supply and demand trends. limit customers to 4 bags at a time of imported jasmine, basmati and long grain white rice.
Sam's Club has 593 stores compared to 2,523 Wal-Mart Supercenters
Costco has 534 warehouses worldwide, most of them in the US.
Rice July contract $24.820 per 100 pounds on Chicago Board of Trade.