MRK Merc International Minerals Inc.

www.nighthawkgold.com TORONTO, April 30, 2012 /CNW/ - Merc International Minerals Inc. is pleased to announce it has changed its name to Nighthawk Gold Corp. ("Nighthawk" or the "Company").  The Company's common shares are expected to commence trading on the TSX Venture Exchange under a new symbol (NHK) at the opening of trading on May 1, 2012. Nighthawk Gold Corp. Nighthawk is a Canadian-based exploration company focused on acquiring and developing gold mineral properties in the Northwest Territories. Its land position covers 222,203 acres or 900 square kilometres in the Indin Lake Gold Camp, located approximately 220 kilometres north of Yellowknife, Northwest Territories. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. Merc International Minerals Inc. CONTACT: David Wiley, President and CEO Nighthawk Gold Corp.(647) 260-1247(416) 363-4567 (FAX)Email: dwiley@nighthawkgold.comDaniel Boase, Investor Relations First Canadian Capital Corp.(416) 742-5600 Ext. 232Email: dboase@firstcanadiancapital.com

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