Sierra Iron Ore Announces Favorable Ore Grades of Over 55% Fe

May 8, 2013

VANCOUVER, May 8, 2013 /CNW/ – SIERRA IRON ORE CORP (the “Company”) is pleased to announce the results of assays of samples taken and sent for laboratory testing. Two of the samples yielded greater than 55% Fe content. The 3rd sample from the Mazomique property requires further testing. % Fe   %S Brasiles 55.21   0.79 El Creston 55.88   0.35 The assays were carried out at the in-house analytical laboratory of Trafigura in Manzanilla, Colima,...