RE:RE:Mining in Mexico Mines get built and produce in much higher risk places such as Mongolia.
Here is a checklist of things that you should also be losing sleep over if you do not know the answers for Santo Tomas.
https://explorationinsights.com/free-content/articles/fatal-flaws-in-the-junior-mining-sector/
One can always find reasons not to buy Oroco; there are plenty of both real and imagined risks.
Santo Tomas requires drilling permits across 3 Mexican states--drilling will begin later in some states than others.
If you don't own shares before the permits are approved and the drilling begins, it may never make sense to buy in later.