Chart - MCR, page-104

I spent a considerable amount of time working at Silver Swan in 00's. There's a few factors that may have a negative impact on the profitable mining of this ore body. Firstly the depth of the active levels are under considerable ground stress as they were back in the 00's requiring fair amounts of ground support. Secondly they'll be hauling ore/waste from a loooong way underground to the surface. Thirdly the heat/humidity in the active levels is very tropical and requires some sort of cooling from surface. Can't see that any of this would have changed to any degree in the intervening years.