VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 04/04/12 -- Riverstone Resources Inc. (TSX VENTURE: RVS)(FRANKFURT: 3RV)(OTCQX: RVREF) ("Riverstone") advises, pursuant to the early warning requirements of securities laws, that it has disposed of 4,500,000 common shares in the capital of Roxgold Inc. ("Roxgold"). Prior to the transaction, Riverstone had beneficial ownership of 16,000,000 common shares of Roxgold
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