BKT is the only ASX Tanzanian graphite company i am personally...

BKT is the only ASX Tanzanian graphite company i am personally aware of doing commercial scale tests. can you tell if if there are any other ASX Tanzanian graphite companies who have taken the step beyond high school level laboratory chemistry? for example, if a company has 4% ore from a sandpit, how will they know if that ore won't be pulverized in a massive plant designed to produce 240,000 tpa of concentrate from 4% grade ore? I recall hearing in an audio the BKT view that under 8% ore and over 80ktpa concentrate plant is risky because larger plants will pulverize the ore too much (into dust)