Mining commodities only CG this time is kind of dumb... while for given description says this :
With the Federation diverting considerable resources toward sustaining its anti-xeno countermeasures, some systems are looking to alternative options for sustaining stocks of raw materials. Kokoller Limited is seeking to take advantage of a strong position in its home system, by running a campaign to procure additional resources for the local economy.
With "procure" and reasons they went, they should allow buy it from cmdrs as well, if they really meant what they want. It would produce better results for them and overall better stockpile of things they need.
Nope, they went "mined only" because if you buy it from somewhere else, its worse sort of some kind for some reason and it wont be contributed into CG, despite being delivered and being buyed from cmdr at highest price anyway. Not like there is any decent rewards, wich are none this time, but still its kinda fdev middle finger to those who would want help that CG by doing delivery instead of being forced into mining, in order to being valid for contribution for sake of it.
I can see that a lot trader cmdrs will just skip mining and just take advantage of extra profits from this joke of CG. The certain miniority of cmdrs will certainly do CG as "intended" and go mining, but there wont be a lot of them.