Soltoro Ltd.

Soltoro Ltd.

August 23, 2010 11:05 ET

Soltoro Identifies Acanthite and Awards Contract to Carry Out Further Metallurgical Testing at El Rayo

TORONTO, ONTARIO--(Marketwire - Aug. 23, 2010) - Soltoro Ltd. (TSX VENTURE:SOL): A contract has been awarded to Kappes, Cassiday and Associates of Reno Nevada for a metallurgical test program in order to optimise the recovery of silver at Soltoro's El Rayo primary silver project. To date the highest recovery from bottle roll tests returned 79% silver at minus 100 mesh after 120 hours.

As the initial stage of this metallurgical program, research has been completed at the Department of Geology, University of Toronto on the mineralogy of samples from previous drill holes and from the historical workings. This has clearly established that the silver is primarily in the simple silver sulphide, acanthite, along with lesser silver-copper sulphide (mckinstryite). Acanthite is the major silver ore mineral recovered in most of the primary silver deposits around the world.

Andrew Thomson, President and C.E.O., stated: "This research shows that the silver at El Rayo is in a readily recoverable mineral and that the other minerals present should not negatively affect the economics of the deposit."

While the deposit locally contains significant galena, and elsewhere cerrusite (a lead carbonate), the galena does not contain any of the silver. Other minerals observed include mimetite, chalcocite, covellite, malachite-azurite, sphalerite and hawleyite-greenrockite (a cadmium mineral). The arsenic and vanadium, often reported in the assays of the mineralised intervals, is all in the mineral mimetite. The overall petrography of the rocks suggests a history of oxidation, low temperature alteration and mineralization, carbonation and silicification.

Soltoro recently completed a 10 hole step-out drill program at the Las Bolas deposit and a single drill hole at the Highway Zone. Results for the first three holes were announced August 19, 2010 with further drill results to be announced as they become available. The program was designed to increase the size of the deposit and to provide material for metallurgical testing. 

Mr Terence J. Bottrill, P.Eng., a consultant, member of the advisory board of the Company and a qualified person as defined by NI 43-101 has reviewed and approved the contents of this press release. Field supervision of the El Rayo project is provided by Mr. Chris Lloyd, M.Sc., Vice President, Exploration.

Soltoro is a junior company exploring for gold and silver deposits in Mexico. The Company continues to explore its El Rayo silver-gold project in order to expand the existing NI 43-101 compliant silver resource; recently completed a mapping and sampling program at its Peña Grande project; and is also actively advancing its Victoria, Quila, Tortuga, Chinipas and El Santuario projects. Soltoro has 35,047,850 shares outstanding and trades on the TSX Venture Exchange under the symbol SOL.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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