No argument with your view of the management. In regards to OTC trading, I received some shares in the spinoff into my Fidelity USA account. They were held as private holdings with a different symbol. At some point Fidelity listed them in my account as ZHCLF. I then bought more shares which went in with the existing spinoff shares. I have no doubt that ZHCLF shares are legit and DM confirmed that, he just didn't seem happy they were trading in the OTC. Since they have moved to the "expert" market I have not been able to buy any more from any US broker. The Canadian brokers wouldn't allow any US resident accounts.
I would be inclined to double my holdings at this price. Can't say I'd do the same for RVX though.