Ann: Binding Term Sheet Executed for Lorena Project Acquisition, page-46

I'm speculating that it's to do with this satellite image of the site from 23rd of June courtesy of Sentinel-2b:



That's a very dark tone for a supposedly dewatered pit, much darker than the surrounding hillsides and gorges and any shadow they may be casting. Might explain why they're blasting topsoil and purchasing a nearby facility with mining leases, instead of working the old mine...