A morning surfathon sounds way better than my morning full-o-meetings! I'd have stayed out at the beach and not come back to my screen :D
> [..] but part of the reason why ARU has taken 16+ years to get to this point (almost financed and construction begins), was the development and proving of the rare earth processing method and commercial viability of that process.
Yes but the key phrase missing from the end of that sentence is "at scale". It all may go swimingly, but the transition of a process from proof-of-viability to viable-at-scale does not always go in a straight line, and probably more often than not takes a detour through Timbuktu.
Given the absence of insider visibility and any direct expertise on any of this, my default assumption is that they'll run into various unexpected landmines similar to those who have gone before them.
> But a question that I have never been able to get an answer, is the ability for rare earth processing plants to be able to accept rare earth aggregates from other locations?
That is a multi-faceted question spanning at least logistics, geology, industrial process and chemistry.
I think the logistics piece is in place i.e. there is rail freight available between Alice Springs and Kalgoorlie.
I can only speculate about the other facets.
On the industrial process side, I would expect that it would be straight forward for ARU to adapt what they shipped another processing plant to meet whatever requirements exist for the plant's inputs.
On the geology side, my limited understanding would suggest there is overlap between the types of deposits at Mt Weld and Nolans such that you could expect the extraction chemistry to be applicable to inputs sourced from either location, modulo some tuning for the different specific ore types and concentrations of the target compounds.
Also worth noting that China-based extraction operators have been able to accept raw ore from diverse mines and extract the goodies, so while perhaps not tailored for maximum extraction efficiency, there is existence proof that it's doable. Whether Lynas have tailored their Kalgoorlie plant to be finely tuned for Mt Weld inputs and would refuse to process different inputs is unclear.
That's the only additional semi-useful commentary I can add. Bring on some tasty NdPr pudding!