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March 20, 2014 --- Vol. 08, No. 12March 2014

Northwest Territories

DIAMONDS – Dominion Diamond Corp. March 14 released an updated reserve and resource statement for the Ekati and Diavik Diamond Mines. At Jan. 31, proven and probable reserves at Ekati totaled 17.1 million metric tons grading 1.1 carats per metric ton for a total of 18.8 million carats. Mineral resources, inclusive of reserves, were 103.0 million metric tons grading 1.2 c/t for a total of 127.1 million carats in the indicated category and 25.5 million metric tons grading 0.8 c/t for a total of 19.3 million carats in the inferred category. At the Ekati Diamond Mine, the resource model for the Pigeon kimberlite pipe was updated in calendar 2013 after additional definition and geotechnical drilling was conducted, which resulted in an increase of 1.4 million metric tons of indicated resources to a total of 12 million metric tons. Included in this increase is an additional 600,000 metric tons being promoted to probable reserve status for a total of 7.3 million metric tons as a result of conducting these additional drilling programs and updating the open-pit design for the Pigeon kimberlite pipe. At Dec. 31, proven and probable reserves at Diavik totaled 16.4 million metric tons grading 2.9 carats per metric ton for a total of 46.8 million carats. Mineral resources, inclusive of reserves, also included 3.3 million metric tons grading 2.7 c/t for a total 8.8 million carats in the inferred category. For the Diavik Diamond Mine, new data from processing samples from the 2012 deep drilling program on the A-154 North kimberlite pipe was incorporated into the latest reserve and resource models in calendar 2013. The updated A-154 North model has reclassified 2 million metric tons from probable to proven reserve status. The A-154 South, A-418 and A-21 kimberlite pipes were not part of the 2012 drilling program, and consequently, there are no significant changes to their reserve and resource models.

SUPPORT SERVICE – Diavik Diamond Mines (2012) Inc., operator of the Diavik Diamond Mine, March 14 reported that Det’on Cho Logistics has been awarded Diavik’s jet passenger service contract. “We are very pleased with our new partnership with Det’on Cho Logistics. The Yellowknives Dene First Nation and Diavik have a strong history of working together to create local benefits,” said Diavik Diamond Mines (2012) President Marc Cameron. “We are confident that Det’on Cho Logistics will deliver a quality service to our operations. This new venture builds upon our existing business partnership with the Yellowknives Dene First Nation, which includes Bouwa Whee, which provides Diavik with catering and accommodations services.” Under the contract, Det’on Cho Logistics, in partnership with Summit Air and First Air, will manage the transportation of mine-site employees traveling to the Diavik Diamond Mine from Edmonton, Alberta. The contract takes effect April 1.nAccording to Det’on Cho Logistics Vice-President Stu Impett, the focus is on providing value for Diavik by putting together a robust solution for moving passengers to the Diavik Diamond Mine. “Our approach has always been to offer solutions to our clients today and adapt to their needs going forward,” said Impett. “Det’on Cho Logistics and our partners are able to provide multiple options for moving passengers to the mine, allowing Diavik to choose the best fit for their operation,” he said. Due to its remote location 300 kilometers (186 miles) northeast of Yellowknife, (NWT) and with air-only, year-round access, Diavik flies its work force to the mine site for their work rotations. The Diavik Diamond Mine employs 997 people with one half of the work force residing in Northwest Territories and West Kitikmeot, Nunavut communities. The majority of Diavik local spending is with northern companies many of which are Aboriginal-owned. In 2013, Diavik’s total northern spend was C$261 million, or 73 percent of total spend of C$362 million. Total 2013 spending with Aboriginal businesses was C$116 million, or 32 percent.” The Diavik Diamond Mine is 60 percent owned by Diavik Diamond Mines (2012) Inc., a subsidiary of Rio Tinto plc of London and the Dominion Diamond Diavik Limited Partnership (40 percent) unincorporated joint venture. Both companies are located in Yellowknife.


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