(Reuters) -Potential buyers of Japan's Seven & i and Canada's Alimentation Couche-Tard's (ACT) U.S. stores have until the end of March to express their interest and address antitrust concerns, Bloomberg News reported on Wednesday,

Potential buyers for a divestiture package of Seven & i Holdings Co. and Alimentation Couche-Tard Inc.’s US convenience stores have until the end of the month to express their interest and show they can overcome antitrust concerns as talks over a possible union continue,

Media reports say 7-Eleven parent confirmed signing NDA, but there has been no official announcement from the Tokyo-based convenience-store