transportation in the area of transportation, and that is the so-called transfer of minerals between maadt the level of the economy , there is a point, the more we can raise the technology of the capital level in the field of equipment, that is , the technology of our equipment will be higher. we will have productivity growth in our capital stock it will increase, but as much as these are depreciated, those depreciation costs are repair costs. maintenance of the costs of stopping the production lines in the field of mining, the more these costs increase, it actually affects the decrease in efficiency and effectiveness in the mining sector, the increase in overall costs and ultimately the decrease in productivity, that is, we want to say that the relationship between these is linear. in the same way, how much we spend, as i mentioned, a major part of this cost is the cost of logistics, moving and transportation , how much these costs are due to various issues , such as the decrease in the efficiency of the equipment and machinery, whether in terms of maintenance costs or depreciation in th