Considering 1.3B was the 2019 DFS - since then the resource has increased and the lithium price has gone up (I think the price they used in the last DFS wasn't super low, however). It's hopefully something like GLN (from what I can see they are both 20ktpa. GLN's project is 2.2B usd https://wcsecure.weblink.com.au/pdf/GLN/02464662.pdf
happy for someone to correct me on any updated figures.
Assuming the management doesn't fob off the project (PSC for example) and factoring in the 51% ownership, there's an easy 5-10bags in this one.