United Nations Framework Classification for Resources
United Nations Framework Classification for Resources (UNFC) is an international scheme for the classification, management and reporting of energy, mineral, and raw material resources. United Nations Economic Commission for Europe's (UNECE) Expert Group on Resource Management (EGRM) is responsible for the development promotion and further development of UNFC. == Development == Classification and management of natural resources such as minerals and petroleum are classified using differing schemes.
Source: Wikipedia — United Nations Framework Classification for Resources (CC BY-SA 4.0)