Re-assaying of 140kms of historical drilling for lithium, page-13

They will be kept where they are already I would think. Warehoused somewhere. Nothing unusual about companies storing drill cores for posterity, been doing it for many many decades. 140kms of core is certainly a lot, I assume they will have the drill co-ordinates of most if not all. Rough and ready method possibly for selecting samples is do spot checks of interesting areas using the LIBs portable spectrometer over the cores (most if not all lithium explorers have one of these units for in-situ testing) or open the core trays, turn off the warehouse lights, run a UV light over the cores, spodumene will visually fluoresce. Its a low cost starting point, rough and ready.