26 November 2014
YELLOWKNIFE, Nov. 26, 2014 /PRNewswire/ - Dominion Diamond Corporation (TSX: DDC, NYSE: DDC) (the "Company" or "Dominion") reports that Rio Tinto plc, the parent company of the operator of the Diavik Diamond Mine (Diavik Diamond Mines (2012) Ltd. ("DDMI")), has approved the development of the A-21 pipe at the Diavik Diamond Mine, in which the Company holds a 40% stake. DDMI has estimated the total capital cost for the development of the A-21 pipe to be approximately US$350 million at the Company's estimated Canadian/US dollar exchange rate of $1.11 (on a 100% basis), with the Company's share being US$140 million. The A-21 resource is well understood, and A-21 diamond production is planned for late calendar 2018. The A-21 production will provide an important source of incremental supply for Diavik, ensuring the continuation of existing production levels.