P10 Industries Inc. (PX)

[chemist72]

bob, one of the requirements for "uplisting" to the OTCQB tier requires 30 days of trading at $.01 or higher:

Bid Price of $0.01.
Have proprietary priced quotations published by a Market Maker in OTC Link ATS with a closing bid price of at least $0.01 a) for each of the 30 calendar days immediately preceding the Company’s application for OTCQB and b) as of the date OTC Markets Group approves its application to join the OTCQB market.

As far as I can tell, PIOE meets all the other listing requirements. Maybe they are waiting to get listed as an OTCQB stock (which, by the way comes with "free" Level 2 quotations)? Just another possibility to add to your list of 3 choices.