That excerpt comments on pegmatites in to different districts.
It first talks about "Sao joao del rei" is in south east Brazil. Then it talks about "Paraiba" which is in North east Brazil. This is the high grade area where the SUM projects are.
You used numbers from the "Sao joao del rei" concentrate, the lower grades.
Anyway, the concentrates from Paraiba are high. We don't know how they were able to achieve those grades or what the ore grade was. Sandro believes what he vended is high grade. I doubt he is just just making that up.
I don't know if we can use processing Lithium as a guide such as PLS ore grade is 1.2% Li2O per ton and it is processed into SC5.5%. Probably not.
That excerpt comments on pegmatites in to different districts....
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