Beneficiation plant design costing way the fees are as follows: (1) Raw material cost: the cost of raw ore mining plus the transportation cost of the original ore from the mining site to the concentrator. (2) Auxiliary material fee: The designed auxiliary material consumption quota is multiplied by the local material price, or according to the national material unit price (if the transportation distance is far away, the transportation and miscellaneous expenses of the material should be considered.) Calculated by the design consumption quota. (3) Water and electricity consumption for mineral processing: The designed water and electricity consumption indicators are multiplied by the unit price (water and electricity indicators should be deducted from the electricity and water consumption of repair and administrative welfare facilities). (4) Salary for production workers: refers to the basic and auxiliary wages of direct production workers and auxiliary production workers engaged in mineral processing (excluding mechanics, maintenance and wages of non-production personnel). (5) Salary surcharges for production workers: According to national regulations, 11% of total wages are drawn. (6) Overhaul and maintenance costs (including materials for overhaul and maintenance, wages, power, depreciation, etc.): The amount of fixed assets investment per unit of product (excluding machine repair, overhaul, administrative living and welfare facilities) Repair rates and maintenance rates are available. The overhaul rate is generally drawn at 2 to 2.5% of the original value of the fixed assets. The maintenance rate is generally based on 3 to 6% of the original value of the fixed assets. The maintenance fee can also be calculated by multiplying the equipment and building (structure) costs in the original value of the fixed assets by their respective rates. The competent authorities of each region have regulations on the rates of enterprises, which can be referred to. (7) Basic depreciation expense: Generally, the basic depreciation is drawn according to the service period of the enterprise or the service years of the equipment and construction (structure) invested by the fixed assets are separately extracted. When the service life of a company is very long, the calculation of basic depreciation generally takes 20 years as the economic calculation period of the enterprise. The rate of formation of fixed assets shall be calculated according to the design budget, and the cost of mechanical repair, maintenance and administrative and living welfare facilities in fixed assets shall be deducted. If there is no design budget, it can be calculated according to the total investment of 0.85~0.9. (8) Management fees (including workshop expenses and enterprise management fees): Due to the large number of projects, detailed calculations are difficult and difficult to design, and can be selected according to the actual indicators of similar enterprises. Stainless Steel Coil,Cold Rolled Stainless Steel Coil,Cold Rolled Prepainted Steel,Hot Rolled Stainless Steel Coil NINGBO YINZHOU ZENGBAO INTERNATIONAL TRADING CO., LTD. , https://www.zbaoart.com