RPA has extensive experience in estimating, auditing, and reviewing Mineral Resources and Mineral Reserves using both manual and geostatistical methods. Reports are written in compliance with applicable securities regulations, for example, NI 43-101 Technical Reports.
RPA classifies Mineral Resources and Mineral Reserves according to the definitions published by the main worldwide regulatory bodies - CIM in Canada, PERC in the UK, SAMREC in South Africa, JORC in Australasia, and the US Securities and Exchange Commission. Mineral Resources are classified into Measured, Indicated, and Inferred categories based upon the density of data and confidence level on the resource estimate. Mineral Reserves are classified into Proven and Probable categories based upon the corresponding resource category and economic mining parameters.