摘要：Mining industry provides benefits to the state in mining as a source of state revenue and foreign exchange earner, producing raw materials for the industrial, infrastructure and socio-economic facilities, and employment providers. Utilization of natural resources in openly coal mining in the forest did to get these benefits, but on the other hand cause environmental harm. Land clearing activities in coal mining, open forest vegetation is causing the loss of economic benefits of forest. Exploitation of coal caused the shrinking amount of coal (coal depletion). Although revegetation activities have been conducted on coal mined land, those would still cause harm to the environment. The research conducted at the site of coal mining PT Bukit Asam (PTBA) South Sumatra Indonesia using quantitative methods of Net Present Value (NPV) aims to assess the value of environmental damages incurred as a result of the utilization of natural resources in coal strip mine in forest areas. The calculation of forest benefit in and after the forest recovery period is using time dimensions that has innovated in this study. The results found for the environmentalloss duringlife of mine for a period of time 1997–2023 PV 2009 amounted to Rp 73.98 trillion,-
