Some of that 1.2 - 1.5Mt per annum comes from diluting waste:
- unplanned stuff that falls off the walls of stopes - planned stuff that is mined because the shape of the mineralisation is too irregular and blastholes incorporate waste - planned stuff where the orebody isn't wide enough for mining and so waste outside the ore is mined to fit the equipment in - from overdigging of backfill surfaces - in between two lodes which are too close to justify the exclusion of the waste - etc.
Little or none of that stuff is in the MRE but it is in the Ore Reserve which is the basis for your production rate. Compare the last MRE with the Scoping Study tonnes processed...7.7Mt vs 9.3Mt.
Furthermore some of the MRE won't make it into production because for one reason or another it doesn't pay.
NWC Price at posting:
3.8¢ Sentiment: Hold Disclosure: Held
