I'm slightly puzzled by the area conversion to LCE's but in a...

I'm slightly puzzled by the area conversion to LCE's but in a favourable way because I get a larger figure.
2km * 1km * 9m * 2.7 density = 48.6Mt. If this is 1.5% then you would need to divide by 66.7 to get to pure LiOH then multiply by 2.473 for LCE.
A 48.6Mt @ 1.5% resource would be a 1,803kt LCE resource. A double check on this calculation is PLS's recent investor presentation. This noted Mt Marion has having a 51Mt resource at 1.45% for an LCE resource of 1.8Mt of LCE.

If you were to do a simplistic feasibility study on 48.6Mt of resource and assume a 70% recovery rate and no loss of resource in converting to reserve, you would get 8.5Mt of SC6 [48.6Mt * (1.5% / 6.0%) * 70% = 8.5Mt of SC6]. However, page 9 indicates there could be a stacked pegmatite system. More drilling is needed to confirm this but if there is a stack of one or more pegmatites then it could be multiples of this back-of-hand estimate.

Thinking about TGRC0009 and the stacked pegmatite system
If TGRC0009 can be extended (again?), the first test is whether it hits a second pegmatite. TGRC0009 stopped at 132m.

• TGRC0011 started 5m lower than TGRC0009. If 5m is added to the down-hole depths mineralisation was 91-102
• TGRC0010 started 3m lower than TGRC0009. If 3m is added to the down-hole depths mineralisation was 115-125
• Between these holes the pegmatite dropped 23 to 24m. The next intercept should be around 138-148m

My guess is that like TGRC0006 - 0008, TGRC0009 was originally drilled to 120m. After TGRC0010 was still in mineralisation at 120m, that hole got extended to 126m. TGRC0011 was then again drilled to plan at 120m. TG6 then quickly went back and added two further 6m extensions to TGRC0009 taking it down to 132m. Not hitting anything on those two extensions they stopped.

If that lower sloped pegmatite continues, they will hit it around 138m downhole. After drilling completed, TG6 got a chance to more accurately figure out what was happening and realised they stopped TGRC0009 slightly too early. This is reflected in the calculations above and in the drawings.