Sample Solution

In order to evaluate the capital costs associated with different mines, data needs to be analyzed from a variety of sources. This includes obtaining information on production rates, cost of labor and materials needed to operate each mine as well as their respective returns (Karnani et al., 2021). Additionally, other factors such as size of operation or government regulations must also be taken into account when measuring capital costs for these mines.

Careful analysis is then required in order to generate an accurate report containing various metrics such as total expenditures needed in order to run the mine, output achieved per period, break-even points etc. which will make it easier for decision makers to compare and contrast between different options (Rosen et al., 2020). Furthermore, producing charts covering important aspects like average cost per unit produced, fixed/variable cost ratios or profitability trends can help provide clarity regarding overall performance.

Finally, once the preliminary report has been completed it should include detailed descriptions about all findings made while analyzing these figures. This will allow managers/investors better understand how certain changes within any given criterion could potentially affect operations and subsequent cash flow.

In conclusion, generating an effective preliminary report pertaining to mine capital costs requires careful examination of numerous factors including production rates and operational expenses. Through organizing this data into meaningful metrics such as those mentioned above key insights can be derived which can help inform decisions regarding potential investments in certain projects.