European Union representation within those institutions, a practice often referred to as "pooling of sovereignty". To become a member, a country must meet the Copenhagen criteria, defined at the 1993 meeting of the European Council in Copenhagen. These require a stable democracy that respects human rights and the rule of law; a functioning market economy; and the acceptance of the obligations of membership, including EU law. Evaluation of a country's fulfilment of the criteria is the responsibility of the European Council. No member state has yet left the Union, although Greenland (an autonomous province of Denmark) withdrew in 1985. Article 50 of
Greenland Minerals Greenland Minerals Greenland Minerals Limited (), formerly Greenland Minerals and Energy Limited, is an Australian exploration company focusing on acquisition, exploration, and development of its license area over the northern ilimaussaq intrusive complex in Greenland. GGG currently aims at exploring of its flagship project, Kvanefjeld project, in Southern Greenland. The Kvanefjeld project is located near the southwest of Greenland consisting of multi-element deposit including rare-earth elements (REE), zinc, and uranium, within marginal phases of the ilimaussaq intrusive complex. As at February 2015, the project has defined a total resource of 673 Mt @ 10,900 ppm TREO, 248 ppm U3O8, 10,000