Mining dealmaker Mick Davis has won permission to export iron-ore from a planned mine in West Africa, adding momentum to the industry veteran’s comeback. Davis, through his new Niron Metals vehicle, has signed an agreement with Liberia that will allow him to use a rail and port to export iron-ore from the mine that he’s seeking to build in neighbouring Guinea, according to a statement. The Zogota project, where mining giant Vale has already spent hundreds of millions of dollars, could be brought on quickly and relatively cheaply.