TORONTO, ONTARIO–(Marketwire – August 15, 2011) – Excalibur Resources Ltd. (CNSX:XBR)(FRANKFURT WKN:A0MMDH) (the “Company”) announces that, further to news releases dated May 18, 2011 and July 15, 2011, it has completed a first tranche of a private placement of 5,780,000 Units at $0.10 per Unit. Each Unit consists of one common share and one share purchase warrant, exercisable to acquire an additional common share at $0.15 per share until August 12, 2013 and at $0.20 per share until August 12, 2013. No finder’s fees were paid in respect of this tranche.

TORONTO, ONTARIO–(Marketwire – Aug. 15, 2011) – Argonaut Gold Inc. (TSX:AR) (“Argonaut” or the “Company”) announces financial and operating results for the second quarter ended June 30, 2011. All dollar amounts are expressed in United States dollars unless otherwise specified. All financial results are presented in accordance with IFRS, unless otherwise noted.

THOMPSON FALLS, Mont., Aug 15, 2011 (BUSINESS WIRE) — United States Antimony Corporation (“USAC”, OTCBB “uamy.ob”) reported all-time record revenues for the third consecutive quarter and, despite heavy start-up expenses in Mexico, maintained profitability. Second quarter revenues for 2011 were $3,050,002 and net income was $86,428 compared to revenues of $2,090,173 for 2010 and net income of $204,587.

Capstone Mining Corp. today announced its financial results for the three and six months ended June 30, 2011. Net earnings for the quarter were $15.5 million and cash flow from operating activities was $29.7 million. Capstone ended the quarter with cash on hand of $506.6 million and no long-term debt. Copper production for the quarter at Capstone’s two operating mines, Cozamin and Minto, totalled 20.5 million pounds of payable copper at an estimated total cash cost1 of $1.31 per payable pound.

Zaruma Resources Inc., (TSXV-ZMR), (the “Company” or “Zaruma”) is pleased to announce the appointment of Keith R. Hulley as a new member of the Board of Directors and Chairman of the Company’s Operating Committee, and J. Robert McNair as the Chief Operating Officer of the Company. The appointments are subject to the approval of the TSX Venture Exchange.

VANCOUVER, BRITISH COLUMBIA–(Marketwire – Aug. 11, 2011) – GREAT PANTHER SILVER LIMITED (TSX:GPR)(NYSE Amex:GPL) (the “Company”) announces the financial results for the Company’s quarter ended June 30, 2011. This is the first financial year where the Company has prepared its consolidated interim unaudited financial statements using International Financial Reporting Standards (“IFRS”). The full version of the financial statements and management’s discussion and analysis can be viewed on the Company’s web site at www.greatpanther.com or on SEDAR at www.sedar.com.

Timmins Gold Corp. (TSE:TMM) reported Thursday preliminary production results for its fiscal first quarter, with gold sales rising 59% year-over-year.

Primero Mining Corp. (“Primero” or the “Company”) (TSX: P) is pleased to announce that its common shares have been authorized for listing on the New York Stock Exchange (NYSE). The Company anticipates its common shares will begin trading on the NYSE on Monday, August 15, 2011, under the trading symbol “PPP”. The Company will retain its listing on the Toronto Stock Exchange (TSX) in Canada under the trading symbol “P”.

Operating Cash Flow Increases 247%, Net Free Cash Flow Increases 261% and Record Margins of 75%

Corex Gold Corp. is pleased to announce it has increased the previously announced (July 14, 2011) private placement up to $1,000,000 (3,333,333 units at $0.30 per unit (the “Financing”), and has closed on 3,931,332 units at a price of $0.30 per unit, (“Unit”) for aggregate gross proceeds of CDN $1,179,400. Each Unit consists of one common share and one half of one share purchase warrant (the “Warrant”), each whole Warrant exercisable by the holder to acquire one additional common share at a price of $0.45 for 12 months from Closing. The Warrants are subject to an accelerated expiry which comes into effect once the shares trade above a weighted average price of $0.50 for any twenty consecutive trading-day period, subsequent to four months from Closing. In the event of an accelerated expiry, the expiry date will be the earlier of the regular two year expiry date and 30 days from the date the Company advises the placees of the accelerated expiry.