I'm not sure that this is possible for a company to pay back the capex within 2 months. If it were true this this company's share price would be $1.50 instead of just 50 cents.
The thing I am very worried about is that there is an election in the Congo this year - if it turns out anything like the Ivory Coast (and there is a possibility that it will) then this company will be worthless and all of that hard work will be for nothing