your post sounds wrong to me Jumbo and SUPER JUMBO CATEGORY are...

your post sounds wrong to me

Jumbo and SUPER JUMBO CATEGORY are not a measure of "purity"

for example, VRC have 910ppm of vanadium in their ore, which is an IMPURITY

regardless of the VRC flake size, the impurity must be cleansed


flake size is important for certain graphite uses, such as for "refractories"

for the battery market, flake size is not important

for example, MNS are planing to sell 70% of their output for batteries and use the larger flake sizes for other (non-battery) markets

for the battery market, PURITY is important but not flake size

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