Ann: First DSO Shipment, page-148

It does get confusing because there are multiple versions of DSO:

There's the DSO that Core has sold which is basically the same material from Grants that Core will feed through the DMS plant when that plant is commissioned and out of the DMS pops SC5.8 Spod (The DSO announcement noted it was post-crushing 6.3mm material).

Through the crushing process, you get a proportion of the material that breaks off to a really small sizes. This would be close to the size needed for a flotation circuit but Core doesn't have one of those. This circa sub-1mm size product is also not suitable for the DMS plant but it is from Grants and it still has a lithium content of circa 1.0% to 1.1%. This material will either be stockpiled until some later date when Core has onsite plant that could process it, or undergo some minor processing enabling it to be sold as DSO fines (As per the July 2021 scoping study). I haven't seen any announcement from Core confirming which approach they are taking with fines, though they should now be getting a good idea of the annual volumes that will be generated and the grade that it is coming in at.

The third type of DSO was introduced in LTR's announcement on Friday. This is overburden material not in the JORC envelope that still has a significant lithium component. This ore either has characteristics that make it unsuitable to put through the concentrating process planned to produce circa SC5.5 to SC6.0 Spod or is lower grade and produced at a time when there is no crushing / concentration plant commissioned. By the time these plants are commissioned, better ore will be available to process. This means LTR would have it as either overburden waste, as a stockpile of material for later processing when they have spare capacity of suitable equipment, or sell it as DSO. If the crusher isn't commissioned when its sold, the material may have a much wider variety of rock sizes than Core's DSO sale.