They probably run or will run tests on various materials but I would expect that the primary objective for now is maximizing their market and then focus on the less lucrative markets as they expand operation.
Years ago, I initially invested in Pyro for waste incineration and hope that they soon take over that market because trash burial is stupid and the recycling industry is a total, toxic joke. Pyro is a gamechanger and the plasma economy can't start soon enough.
Robert in USA