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Abstract
(CCNMatthews - May 15, 2007) - Quadra Mining Ltd (the "Company" or "Quadra") (TSX:QUA) is pleased to announce that on May 10, 2007, the Robinson Nevada Mining Company, Quadra's 100% owned subsidiary, reached a safety milestone recording one million employee hours without a Lost Time Accident at its Robinson copper mine, located west of Ely, Nevada.