To answer some of your questions - look into a company called Aurora Cannabis. They essentially had the same startup as BLDV (although share structure was different) and now have a market cap of $800 million - still with 0 revenue.
Once step 7 is approved from Health Canada, this will trade higher as institutions will jump on, as they did with Aurora.
Eltron is a very large, old company - highly credited and they often receive government grants.
My apologies if my sentence structure is horrid, typing on my phone in an uber.