Roca Mines Inc.
TSX VENTURE : ROK

Roca Mines Inc.

August 20, 2007 16:19 ET

Roca Closes Over-Allotment Option

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Aug. 20, 2007) - Roca Mines Inc. (TSX VENTURE:ROK) ("Roca" or the "Company") announces, further to its press release of August 7, 2007, that Desjardins Securities Inc. (the "Underwriter") has exercised its over-allotment option for an additional 613,500 units at a price of $3.18 per unit. In connection with the option exercise, the Underwriter received an additional 6% cash commission on the gross proceeds of $1,950,930 and underwriter's warrants to purchase up to 36,810 common shares at a price of $3.18 per share until August 20, 2008.

Each unit consists of one common share and one-half of one common share purchase warrant. A whole warrant entitles the holder to acquire one common share at a price of $4.00 at any time until August 7, 2009. These securities are subject to a hold period expiring on December 8, 2007.

About Roca Mines Inc.

ROCA Mines Inc. is a mining and exploration company focused on the outstanding mineral potential located within British Columbia. Roca's primary project is the MAX Molybdenum Project, permitted and targeting initial production later in August-2007.

ROCA MINES INC.

David J. Skerlec - Chief Financial Officer

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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