Cash backed and a major Potash resource, page-40

This can't be too different to a free digging DSO bauxite shallow operation ? Backfill topsoil .

I refer QBL as an example only of their scoping study on 800kt pa were $26 /t digging and $10/t boat to China

Any other examples we can dig up to illustrate perhaps a better fit ?

Would be good if the company were to reference some similar operations on their web site as a work around to ASX regulations pre indicated resource statement to give indicative margins .