Interesting you chose CBR. CBR recently sold their stake in this project to their partner Focus. They currently have .5 million ounces in the greenstone belt and are trading at less than the cash they will have in the bank. $0.00 per ounce in the ground.

Pre-feasibility study
A preliminary assessment of the Economic Viability of a deposit which forms the basis for justifying the completion of a more expensive Feasibility Study. A pre-feasibility study summarizes all geological, engineering, environmental, legal and economic information accumulated to date on the project. The Prefeasibility Study should have error limits of ± 25%.

Feasibility Study (Bankable Feasibility Study)
A detailed engineering study which defines the technical, economic, social and legal viability of a mining project with a high degree of reliability, identifying and quantifying any risks and providing sufficient information to determine whether or not the project should be advanced to the final engineering and construction stage. A bankable feasibility study forms the basis on which banks and other lenders provide the capital necessary to build the mine(s).