Marston Webb International

Tinka Resources Limited (CVE:TK) (FRA:TLD) (PINK:TKRFF), announces the results from drill holes, A13-02 and A13-03, at the Company's 100% owned Ayawilca project located in west-central Peru.

Tinka Resources Limited (CVE:TK) (FRA:TLD) (PINK:TKRFF), announces the results from holes CDD-26 and CDD-27 at the Company's 100-percent owned Colquipucro project, west-central Peru. These are the first of a series of in-fill holes designed to both increase the resource base and upgrade the resource from the inferred to the indicated category.

McEwen Mining Inc. (NYSE:MUX)(TSE:MUX) is pleased to announce that year-end 2012 mineral resource and reserve estimates and the grades for both gold and silver have increased from 2011 for the San Jose mine (49% owned by McEwen Mining). Of particular interest, the mineral resource estimates have increased to a record level.

Industrial demand for silver has increased substantially over the past two decades and is expected to soar to a new record level in the coming year. Speaking last week at the annual Prospectors & Developers Association of Canada convention in Toronto, Michael DiRienzo, Executive Director of the Silver Institute, said that demand for silver is broadening in many directions.

McEwen Mining Inc. (NYSE:MUX)(TSE:MUX) Chief Owner, Rob McEwen, along with senior management, will be hosting a conference call Monday, March 11, 2013 at 2:00 PM EST to provide the fourth quarter and full-year Company update.

The Chief Executive of the world's leading insurance broker and risk adviser will provide valuable market insight to delegates of the 9th Bermuda Captive Conference (www.bermudacaptive.bm) June 10-12 at the Fairmont Southampton hotel. And this year the Conference will highlight a feature of the Bermuda captive domicile that makes it unique.

Sona Resources Corp. (CVE:SYS) (FRA:QS7) is pleased to announce that it has signed a memorandum of understanding with China Machinery Engineering Corporation of Beijing for an engineering, procurement and construction contract. This will facilitate development of Sona's Blackdome-Elizabeth Gold Project, located in the Clinton and Lillooet Mining Districts of British Columbia, approximately 220 kilometres north of Vancouver.

Sterling silver jewelry sales continued their strong performance during the recent Holiday Season, according to industry observers and early retail sales surveys. Retailers across the country reported to Jewelers Circular Keystone that "Sterling silver was the shining star of the Holiday Season in all types of pieces and increasingly higher price points."

McEwen Mining Inc. (NYSE:MUX) (TSE:MUX) is pleased to announce that it has successfully achieved commercial production at El Gallo Phase 1 in Sinaloa State, Mexico on January 1, 2012.

McEwen Mining Inc. (NYSE:MUX) (TSE:MUX) is pleased to announce that it has strengthened its operations team with the recent hiring of Fernando Aguilar, as Operations Manager (Mexico), Luke Willis, as Director Resource Modeling and Nigel Fung, as Director Mine Planning.