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Mineral Resources and Mineral Reserves
Mineral Resources and Mineral Reserves are the basis for the future viability of a mining company’s operations. They form the basis for the mines’ long-term mining plans and are the underlying data for many of the company’s major investments. Mineral Reserves are reduced every year through mining activities and new additions to the Resources and Reserves are, therefore, vital to the viability of the operations.
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| Petiknäs norra | Download PDF |
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Mineral Resources and Mineral Reserves
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| Aitik | Download PDF |
| Boliden Area Kristineberg | Download PDF |
| Boliden Area Renström | Download PDF |
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| Garpenberg | Download PDF |
| Kevitsa | Download PDF |
| Tara | Download PDF |
A Mineral Resource is a concentration or occurrence of solid material of economic interest in or on the Earth’s crust in such form, grade or quality and quantity that there are reasonable prospects for eventual economic extraction. Mineral Resources are subdivided, in order of increasing geological confidence, into Inferred, Indicated and Measured Mineral Resources, as indicated in the figure.
A Mineral Reserve is the economically mineable part of a Measured and/or Indicated Mineral Resource. It includes diluting materials and allowances for losses, which may occur when the material is mined or extracted and is defined by studies at Pre-Feasibility or Feasibility level as appropriate that include application of Modifying Factors. Such studies demonstrate that, at the time of reporting, extraction could reasonably be justified. Mineral Reserves are sub-divided in order of increasing confidence into Probably Mineral Reserves and Proved Mineral Reserves, as indicated in the figure.
Boliden reports Mineral Reserves exclusive of Mineral Resources to avoid double counting. This means that quantities converted to Mineral Reserve are removed from Mineral Resource.
Boliden follows SveMin recommendations for reporting exploration results, Mineral Reserves and Mineral Resources and strives to report according to the Pan-European Reserves and Resources Reporting Committee (PERC). The PERC standard is an internationally recognized reporting standard that has been recognized by the mining associations in Sweden, from Finland and Norsk Bergindustri in Norway for exploration and mining companies in the Nordics.