GMK Noril�skiy nikel� OAO (Mining and Metallurgical Company Norilsk Nickel OJSC or MMC Norilsk Nickel OJSC) is a Russia-based company engaged in the exploration, extraction, refining and sale of base and precious metals. The Company is a producer of nickel and palladium and a producer of platinum and copper. It also produces various by-products, such as cobalt, chromium, rhodium, silver, gold, iridium, ruthenium, selenium, tellurium and sulfur. The Company�s production facilities are located in Taimyr and Kola peninsulas of the Russian Federation, Australia, Botswana, Finland and South African Republic. It has subsidiaries in the Russian Federation, the United Kingdom, Switzerland, the United States, Hong Kong and China. In March 2013, the Company increased its stake in Noril'skgazprom OAO from 40.48% to 56.17%, as well as acquired a 100% stake in Corvest Ltd.