cdu likelyup soon in senate inquiry into asic, page-139

"Every self respecting miner knows that they need to keep track of everything that is mined by tonnes and grade % as its the only way to know how efficiently the plant is running. Every miner tracks the output of concentrates versus what has been mined so they can see how efficiently the extraction process is working"

Yes it does but not from what is on the ROM, its measured after the crushing circuit. How many miners state in their reports x amount produced because of lower than expected head grades or higher than expected head grades.