Checked out LEMIF from your post. Historic numbers from $0.05 to $1.00. Current is $0.25 daily range. Not sure what they have been doing for 9 years. And selling off this lithium property to ULTHF only makes sense in that they get an influx of cash $$$ short term & long term via a mix of cash & stock options.
Since they have managed to exist for 9 years while remaining a penny stock does bode well for your investment. Longevity is a positive. I think the real profit potential lies with ULTHF. The precious metals they can possibly mine from this property is in high demand world wide & demand is greater than projected supplies.
If the LEMIF price exceeds your investment price you should consider jumping ship with a profit & buy some ULTHF stock while it is CHEAP. I hear opportunity knocking. Grabbing 1,500 shares myself tomorrow.