Copper Fox Metals Inc.

... what makes people think the grade is likely high enough to be included into the M&I category?

Near perfect 1-to-1 correlations between magnetic signatures and actual drilling results thus far. Plus, according to the BFS the identified 171 MT of inferred is only short a few extra holes to upgrade it.

Study closely the "CU eq trends" from the bock model shown on Page 12 of the following presentation. Notice how CU and CU Eq grades get better as you get closer to the big red blob, drill results from which are currently pending...
http://www.copperfoxmetals.com/i/pdf/CUU_Presentation.pdf