Uzbekistan’s mineral resource/reserve reporting system is notably different, both in principle and in detail, from generally recognized international systems, such as Australia’s JORC Code and Canada’s CIM standards.
Uzbekistan, along with other CIS countries, still uses the former Soviet system for classification of mineral resources and reserves. This categorizes mineral concentrations (a) according to the extent to which they have been explored and substantiated, specifically: categories A, B, C1 and C2 and three categories of potential resources P1, P2, P3 and (b) on an economic-value basis, with two categories: balance reserves (commercial reserves) and off balance reserves (reserves lacking commercial potential).