A race against depletion with mining depletion taking more than...

A race against depletion with mining depletion taking more than additional drilling in some areas, although overall the picture is that more tonnes are to be found. I think it's interesting that they increased the economic cut-off grades in the upper (above 0mRL) and lower mining areas so that means more selective mining of slightly fewer tonnes but at a higher grade. Too late now but this should have had a shaft sunk more than 10 years ago which would have helped the ridiculous trucking to surface economics that this operation has always had to fight against.