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The Committee for Mineral Reserves International Reporting Standards (CRIRSCO) is a volunteer-run international organisation that aims to contribute to the earning and maintaining of the trust of all stakeholders by promoting high standards of reporting of mineral deposit estimates and of exploration progress.

CRIRSCO’s work is important both to society and to ICMM because if companies don’t transparently report their resources and reserves in a standardised matter, stakeholders cannot accurately assess the risks associated with the project, an issue that will likely lead to increased distrust in the mining industry.

As of 2021, membership of CRIRSCO stands at 14 National Representative Organisations (NROs), including many of the major mining jurisdictions. A number of other NROs are in the process of applying for membership.

ICMM is now in its 10th year of a strategic partnership with CRIRSCO and is the organisation’s primary financial contributor.