Post-closure funding initiatives to facilitate custodial transfer and relinquishment of mining tenure

摘要

The aim of mine closure works is usually to minimise residual liability to enable the responsibility for land management to be transferred to a custodial authority. The accepted approach to relinquish mining tenure after closure works is to measure performance against agreed objectives and criteria over a period of time, to demonstrate success to key stakeholders. The relevant custodial authority may, however, be unwilling to inherit the responsibility for managing closed mines and ongoing closure liabilities in perpetuity.There are very few examples in Western Australia where a closed mine has been relinquished to the State Government in a coordinated manner. There are examples, however, where Governments have inherited legacy mines and associated closure liabilities, where the mine operator has been unable to meet their closure obligations. There are examples from around the world where mine operators have established long-term, self-perpetuating funding initiatives as a mechanism to facilitate custodial transfer of mining areas and coordinated relinquishment of mining tenure. Such initiatives can provide financial surety in the event of foreseen or unforeseen closure risks, provide for organisation and management of a custodial body, provide an ongoing benefit to the community or the environment, and can fund ongoing activities for a closed mine.Self-perpetuating funds and other mechanisms that buffer the exposure that a custodial authority has to residual liabilities and risks, in concert with demonstrated closure success, may encourage Western Australian regulators to more readily consider relinquishment applicationsfor mining tenure. This paper reports on some of the long term funding initiatives that have been applied globally.