"And from what I understand the NSR cut-off at USD $4.31 is quite significant. I can't find/recall the previous NSR but I remember this board had a good discussion about it.

"Mineral Resources are reported using a net smelter return ("NSR") cut-off of US$4.31/t.""

https://www.copperfoxmetals.com/site/assets/files/3747/copper-fox-metals-feasibility-study-january-23-2013.pdf

"MMTS used a reserve cut-off of $6.60/t net smelter return (NSR), which is identical to the total initial forecast cost of processing, tailings management and general and administrative (G&A). The NSR equals the total recoverable revenue, less transportation and refining costs per tonne. "

That is a HUGE difference!