* Follows last week's Monoprix deal with Amazon
* Competition intensifying in French sector(Adds detail, background)
The companies said on Tuesday that they were in talks tojointly negotiate purchases with their main, multi-national foodand non-food suppliers.
Casino's planned partnership with Auchan in this area comesjust a week after it struck a deal with Amazon.
Casino and Amazon said last week that groceries sourced fromCasino's Monoprix supermarket arm would be available through theAmazon Prime Now app and website.
Amazon's purchase of the bricks-and-mortar retailer WholeFoods Market Inc for
Casino already has another delivery partnership with
In January, Casino's French rival Carrefour alsosaid it would seek a partnership in