Just a casual passer by here, but imo RVR is relatively safe to market shocks.
Not a spec stock on a high valuation, they're making money and increasing production through the quarters as they progress.
Annualised based on last quarter they would make around 28m this year, puts them on a PE less than 10. Value here and good protection against future risks.
All imo
(and stay away from lithium atm)