definitive feasability study., page-24

Yes, they did suggest earlier that we were looking for a resource upgrade both deeper than previous 50/55m as well as laterally (also reflected by LAC Cauchari deeper drilling) and this more than fourfold upgrade is a great result IMO.

Current upgrade appears to be to a depth of 197m. But also on page 4, there's :

Exploration potential

Within the area of the resource estimate, it is everywhere open at depth, and in the lowermost units has lateral extension potential within the company's properties both to the south-west and north. Gravity surveys have shown the basin to up to 650m deep, and ATM surveys confirm the brine may be more extensive at depth.

There's also good news on the grades.