Clueles - I just looked up the NSR for the PLS 6% Concentrate which they estimate at $26 per tonne, given PLS have Ta credits, slightly lower Li grades but closer to market (reduced shipping costs) IMO this is a fairly good approximate for KDR depending on how they schedule mining pre-strip, site-works, royalty agreements, funding costs, off take agreements etc.
Therefore on 2MTa ~ $52 million NSR pa.