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40 Annual Review of MMC Norilsk Nickel for 201041Chapter 03. Mineral Resources, Ore Reserves andGeological ExplorationChapter03—Mineral Resources,Ore Reserves andGeological Exploration“A unique base of integrated copper and nickel oreresources ensures that the Company has stablelong-term forecasts and a significant competitiveadvantage in the industry. With a view to replenishingthe retired reserve of the operating deposits, toexpanding and diversifying its mineral resourcebase, the Company’s geologists are activelyworking on geological exploration in the Taimyr andKola Peninsulas, the Zabaikalsk region and otherpromising regions.” Oleg Simonov,Director of the Department for Geological ExplorationProven andprobable domesticnickel reserves5.8mntonnesProven andprobable foreignnickel reserves790thousandtonnesMineral Resources, OreReserves and GeologicalExploration—RussiaAs of the beginning of 2011, the provenand probable reserves of the Taimyr(Polar Division) and Kola (Kola MMC)Peninsulas amount to over 535 milliontonnes and contain more than 5.8 milliontonnes of nickel, over 8.5 million tonnesof copper, and ca. 2.5 thousand tonnes(over 81 million ounces) of platinumgroup metals (PGMs). Furthermore,measured and indicated mineralresources on the Taimyr and KolaPeninsulas aggregate ca. 1,600 milliontonnes of ore, and contain over 9 milliontonnes of nickel, ca. 16 million tonnes ofcopper, and over 5.6 thousand tonnes(ca. 182 million ounces) of platinumgroup metals.In the reporting year, the economicreserves and mineral ore resourcesof all deposits constituting the mineralresource base of MMC Norilsk Nickelin the Taimyr and Kola Peninsulaschanged as a result of their extractionand associated losses, operationalexploration, reclassification of resourcesas reserves on the sites of newlycommissioned production facilities andrecalculation of reserves according tothe newly approved industrial conditions(Zhdanovsky Deposit of Kola MMC).Measured and indicated mineralresources in the Taimyr and KolaPeninsulasOre1,600 mn tonnesNickelData for Norilsk Nickel’s mineralresources and ore reserves as ofDecember 31, 2010 are based on theresults of the analysis and operatingconversion of data on ore and metalbalance reserves of Russian operations,accounted as per categories of theRussian classification system (5-grReport), into Joint Ore ReservesCommittee (JORC) Code categories.The calculations were conducted in accordancewith the principles of the JORC Code of theAustralasian Institute of Mining and Metallurgy,using terms and rules, developed in the course ofregular reserves’ audit, performed at the Group’sRussian deposits by Micon International Co Ltd.9 mn tonnesCopper16 mn tonnesPGM182 mn ounces

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