"If I understand correctly then - the permit defines the type of plastic, but not the quality of the plastic - at least the draft that you provided the link for doesn't. Is that right?"
I would say that's correct.
Are you moving toward speculating whether there is a percentage of impurities that HDPE, PP and LDPE can have to make it cheaper, to where the feedstock might be cheaper than the end product whose value isn't diminished as much by those additional impurities? We can speculate forever. So far the company hasn't found any feedstock which makes the process commercially viable so it seems pointless to debate that.
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Plastic2Oil, Inc. (PTOI) Stock Research Links
Yes, I understand your penny stock also is the real deal, created with the inventiveness of Edison and destined to be the next Microsoft. Yes, I understand that the delays are also only because your company is making their product and/or technology even more revolutionary.