Project financial evaluation is one of the main basis for beneficiation plant construction project choices, the financial evaluation is the starting microscopic evaluation of the economic effect of the investment from a business perspective based on current national tax system and current prices, financial benefits and costs incurred direct analysis and calculation of the project, the project Profitability, liquidity, etc., to determine the possibility of project finance. But before the evaluation, the basic data is very important, and the work is also fine.
First, the basic data concentrator financial evaluation of the project for construction of basic data concentrator construction project financial evaluation use can be divided into four categories, namely the total investment, total cost, revenue and tax payments. The basic data and its estimates are described below.
1. Total investment The total investment is the funds for the normal construction, commissioning and operation of the project. The total investment composition of the mine project includes fixed assets investment (also known as fixed capital), working capital and construction period loan interest, etc., as shown in the following figure.

(1) The estimation of fixed assets investment can be basically classified into two categories. One is the detailed estimation, which is the budgetary estimate mentioned in the previous section. It is based on the investment project with certain basic data and sufficient time. Equipment schedules and building drawings, etc., need to apply the budget quotas, indicators, and then multi-rate, the preparation process is more complicated, need to be reviewed step by step, summarized by the budgetary professionals, the preparation accuracy is high, in the preliminary design stage Completion; another type of rough estimate is usually that the data is not sufficient, the time requirements are more urgent, the accuracy of the compilation is lower than the estimated budget, but the accuracy should be at least 80%. The stress should be fine and timely, and it is suitable for the project plan. The initial stage, such as planning, feasibility study, program design, etc., its estimation method: [next]
1 unit raw ore investment index estimation method (also known as unit capacity investment estimation method): multiplying the known unit raw ore investment index and the planned processing capacity of the proposed concentrator, and multiplying by the spread coefficient, that is, the total investment estimate of the proposed concentrator value. The general unit investment index for raw materials does not include external projects that have a large change in investment amount, such as external transportation, external water supply, and external power supply. These need to be calculated separately. In doing so, investment indicators have certain applicability and comparability.
2 Professional investment ratio estimation method: When the investment of the craft major is known, the total investment of the mineral processing plant can be obtained according to the proportion index of the process specialty in the total investment. This requires mastering the statistical data of the proportion of the total investment of many concentrating plant engineering and crafts.
3 Combination Investment Estimation Method: This is to divide a project into several links that can be independently calculated. The total investment of each link is the total investment of the entire project. The investment estimates for each link can be estimated by expanding the indicator or the unit price of the main equipment or by using several methods at the same time, depending on the specific conditions. These methods are applicable to both construction projects and individual engineering projects.
(2) Estimation of working capital The working capital is the funds that are paid in the labor object, wages and other expenses, and is the funds used for the normal production, sales, and inventory-production-sales links. It is prepared before production and the project is terminated.
In actual operation, some of the current assets can be paid to the supplier after the goods are sold, and the funds occupying others are called accounts payable. Due to the existence of accounts payable, the total amount of funds raised by investors for liquid assets is reduced. The exact concept of liquidity is:
Liquidity = Current Assets - Accounts Payable Accounts Payable = (raw material, fuel, purchased power annual fee) / turnover turnover turnover = 360 (days) ÷ minimum turnover days Current assets from accounts receivable, inventory, cash The composition of each aspect:
1 Accounts receivable is the funds used in the sales phase of the product, during the transportation, during the financial settlement process or by the customer to obtain the goods by way of purchase.
2 The inventory consists of the stock of raw materials, fuel, spare parts, and the funds occupied by the products and finished products.
3 Cash is used for wages, bonuses and office expenses.
Under normal circumstances, the estimation of working capital can be determined by a simple estimation method, which is generally estimated according to the proportion of annual sales income or operating cost. The quotad working capital of the mining and selection enterprises (including reserve funds, production funds and finished product funds, regardless of settlement funds and monetary funds) can be estimated at 30%~50% of the total annual factory cost, remote areas with inconvenient transportation and reserve funds requirements. Large companies take the upper limit. However, when the project financial evaluation needs to prepare a balance sheet in order to be in line with international practice, the liquidity requirement must be calculated by the formula. The concept of liquidity is as described above. In order to facilitate the understanding of the formation of project data in the balance sheet, the formulas that make up the liquidity are attached to the notes in the balance sheet. [next]
(3) Loan interest during the construction period As the mining enterprise does not produce products during the infrastructure construction period, there is no sales income, and it is unable to repay the loan interest payable. It has to borrow separately to repay the loan interest during the infrastructure construction period. The interest payable for each year can be calculated according to the following approximate formula:

The specific calculation of accrued interest is detailed in the note below.

2. The total cost in the financial evaluation of the cost item refers to the total cost of the project for producing and selling the product within one year. Total cost includes production costs, management fees, financial expenses, and sales expenses. It can be estimated separately using the inductive formula:
Production cost = raw materials + auxiliary materials + fuel + power + wages + employee welfare + manufacturing costs wages refers to direct wages, including wages, bonuses, allowances and subsidies directly engaged in the production of production personnel, that is, the total wages earned by the production workers ;[next]
Staff welfare is based on 14% of the total wages earned by the production workers;
Manufacturing costs refer to the various expenses incurred by the production workshops of the enterprise for the organization and management of production, including the wages of the production workshop managers, employee welfare, depreciation, operating leases, repairs, machine materials, and low value. Consumables, heating, utilities, office, travel, transportation, downtime and other expenses. The manufacturing cost is similar to the workshop cost in the original cost accounting system, and the accounting contents are basically the same. The formula is:

Manufacturing costs = depreciation + repair costs + operating lease fees + other expenses