Not being terribly familiar with mining law, I recall that the only time they ever made statements about the cost of production was in the initial resource estimate or the PEA. It is very possible that they can't comment on production costs until some type of offical analysis is done (like through a revised PEA to include graphene). One thing I'd like to point out is that the PEA gave total costs and processed ore costs (which is the 2K production cost we're all familiar with). Since the new recovery % has materially increased I suspect that it would be expressed through a reduction in production cost per processed ton of ore for NPV purposes.