Category: Exploration and Development

First Majestic Silver Corp. is pleased to announce that the expansion that commenced at the La Guitarra Silver Mine in November 2012 is now complete. The processing plant’s capacity increased by 40% to 500 tpd from 350 tpd and commercial production is expected to reach 500 tpd during the month of May.

United States Antimony Corporation reported the start up of an antimony oxide mineral circuit at its Puerto Blanco antimony flotation mill located in Guanajuato, Mexico which increases its milling capacity from 150 tons per day to 225 tons per day. With the exception of USAC’s Los Juarez property, most antimony properties in Mexico contain oxide or mixed oxide-sulfide minerals. The sulfide minerals are recovered by flotation, but the oxide minerals must be recovered by gravimetric methods.

70 m at Average of 5.25g/t AuEq over 1.7m Width on Carmen Level 3

Gold Reserve Completes $125,000 Option Payment to Soltoro in Preparation for Drilling the La Tortuga Copper Gold Project

Scorpio Mining Corporation reports that the federal Mexican Secretariat of Environment and Natural Resources (SEMARNAT) has issued to its wholly-owned subsidiary, Minera Platte River Gold, S. de R.L. de C.V., a resolution approving the Environmental Impact Statement pertaining to its application for the development of underground mining operations at the El Cajón and San Rafael projects, located in the Cosalá Norte District, 14 and 17 kilometers by road respectively from the Nuestra Señora processing facility.

Revolution Resources Corp. is pleased to announce it has entered into an agreement to sell the Concepcion property, totaling 117 hectares to Minera Rio Tinto, S.A. DE C.V. for US$4,000,000. Concepcion is located within Revolution’s 26,000 hectare Montana de Oro property, in Sonora State, Mexico.

Avino Silver & Gold Mines Ltd. is pleased to announce that it has completed installation and testing on the new 250 tonne per day circuit (“Circuit 2”) at its processing facility located on the Avino property near Durango, Mexico.

Timmins Gold Corp. is pleased to announce that its ongoing drill program continues to extend and expand the mineralization at the San Francisco Gold Mine, located in the State of Sonora, Mexico. The San Francisco Gold Mine is comprised of two pits, the larger San Francisco Pit (SF Pit) and La Chicharra Pit (LC Pit) located approximately 1.5 km to the west. A total of 107,315 meters in 476 holes were drilled from October, 2012 to the end of February, 2013, the highlights of which are reported below. A further 42,000 meters were drilled in March and April mainly at the SF Pit and management estimates that an additional 30,000 meters will be drilled at the SF Pit to the end of May at which point the drill program will be completed. The results of the drilling will be used to provide an updated Technical Report which is expected by August.

The Company has, pursuant to its news release dated January 28, 2013 (the “January 2013 News Release”), announced that it entered into an agreement with Oroco Resource Corp. to acquire Oroco’s Cerro Prieto Project. The Company wishes to clarify that this transaction has not yet completed and its completion is subject to approval of the shareholders of Oroco and the TSX Venture Exchange as well as standard closing conditions. The January 2013 News Release and the Company’s Corporate Presentation “An Emerging Gold Producer in Mexico, Corporate Update – February 2013” made reference to a “current resource” at the Cerro Prieto Project. The Company wishes to clarify that the resource estimate is historical in nature, as it was not prepared by or on behalf of the Company, and is based on a technical report titled “Preliminary Economic Assessment Technical Report on the Cerro Prieto Project Magdelena de Kino Area, Sonora State Mexico” dated January 28, 2011 on the Cerro Prieto Project prepared by Moose Mountain Technical Services for Oroco and filed on SEDAR by Oroco. Accordingly, the Company is not treating this historical estimate as current mineral resources, as a qualified person has not done sufficient work on behalf of the Company to classify the historical estimate as current mineral resources. After the Oroco Technical Report was completed and filed, Oroco subsequently carried out a surface sampling and exploration and infill drilling program from December 2011 to April 2012, with a focus on the area south of the resource area which was the subject of the Oroco Technical Report. The Company expects to have a National Instrument 43-101 compliant technical report completed on the Cerro Prieto Project by approximately August 31, 2013. The Company’s technical report on the Cerro Prieto Project will incorporate the results of Oroco’s 2011 and 2012 exploration and infill drilling program, as well as a new geological interpretation, in order to update and verify the Oroco resource estimate as current mineral resources.

Baja Mining Corp. has been informed by Minera y Metalúrgica del Boleo, S.A.P.I. de C.V. that on April 18, 2013, Korea Resources Corporation contributed an additional US$30 million in construction funding to MMB.