September 14, 2012



THUNDER BAY, September 14, 2012 – Mr. Pierre Gagné (the "Offeror") announces that he acquired 2,366,000 common shares of Metalcorp Limited (TSXV - MTC) ("Metalcorp") on the open market at $0.02 per share.

As a result of this acquisition, the Offeror now owns or controls 11,955,442 Common Shares representing approximately 16.34% of the issued and outstanding Common Shares. In addition, the Offeror owns 690,000 stock options that, if exercised, would represent approximately 0.94% of the issued and outstanding Common Shares.

The Offeror has acquired the securities for investment purposes and has no present intention of acquiring additional securities of the Issuer (other than with respect to the possible exercise of some or all of the Warrants). Depending upon his evaluation of the business, prospects and financial condition of the Issuer, the market for the Issuer’s securities, general economic and tax conditions and other factors, the Offeror may acquire more or sell some or all of his securities of the Issuer.

For more information, please contact Mr. Pierre Gagné, Chairman of the Board of Rockex Mining Corporation, by phone at 807-623-2626 or by mail at 580 New Vickers Street, Thunder Bay, Ontario P7E 6P1.