Leveraged gold play, page-21

Check out page 13 on the June 20 investor update, it will give you more of an idea.

Mineral resources include Ore Reserves include
( in situ ) ( mineable)

Inferred
Indicated Probable
Measured Proven

You can see on that chart that they move up together. Comprehensive drilling of a resource gives the geo team a better understanding of the resource, then they can work out what part of it they can extract economically given the current gold price using cutoff grade theory.

Cutoff grade= total cost/ recovery/ price per unit of metal