Study On Evaluation Of Coal Mining Right Considering Safety And Environment Influence

Safety and environment are the important factors which influence the produceing and development of coal mine.They directly relate to the capacity of production and profitability.However,the evaluation of coal mining right does not consider the influence of safety and environment,which not only reduces the accuracy of the evaluation result,but also disobey the idea of sustainable development and the scientific development viewpoint.Therefore,on the basis of real options,this paper tried to improve the evaluation of coal mining right through considering safety and environment influence.Compares with other mineral resource, the coal resource has a more serious problem of safety and the environment in the mining process.Basing on the influencing factors of the value of coal resource mining rights,the influence from the security and the environment to the value of coal resource mining right had been analyzed from two aspects of cost and benefit.The chart showing the influence from the security and the environment to the value of coal resource mining rights had also been established.At present,the discounted cash flow method,which is the main ways to evaluate the value of coal mining right,has a drawback of ignoring safty and environment,and could not solve the question of coal mining's uncertainty.In this paper,the model of the evaluation of coal mining right had been improved by:①including the appreciation benefit,social benefit and environmental benefit which belong to the safety benefit into the cash inflows of the evaluation model.And including the tax from safety benefit into the cash outflows;②including the environmental cost into the cash outflows;③including the option value of coal mining into minging right value.Then,this paper had used the method of contribution rate of technological progress and AHP to estimate the safety value of the evaluation model,used Cost-Benefit to estimate the environmental cost of coal mining. Finally, takeing a coal mine belong to Shanxi Coal Group as the example, this paper had estimated the value of coal resource mining rights individually through the original evaluation model of mining right and the improved evaluation model.And it had proved that the improved evaluation model in this paper was more objective,accurate and reasonable.