Soltoro Ltd.
TSX VENTURE : SOL

Soltoro Ltd.

August 31, 2009 10:15 ET

Soltoro Ltd. Announces Resource Drill Program at El Rayo

TORONTO, ONTARIO--(Marketwire - Aug. 31, 2009) - Soltoro Ltd. (TSX VENTURE:SOL) is scheduled to resume resource definition drilling in September on its El Rayo Silver-Gold-Lead Project in Mexico. Drilling will be carried out to define a NI 43-101 compliant silver resource on a section of the Las Bolas structure, to test a recently identified gold mineralized flexure on the north-west extension of the El Rayo structure and to conduct preliminary drill testing of the Highway Zone. Over 5 km of mineralized strike has been defined within the Las Bolas and El Rayo V shaped structures where, upon finalization of permitting, approximately 5,300 metres of reverse circulation drilling is planned.

At the Las Bolas structure, drilling is designed to increase the size of the deposit down dip and along strike in both directions. To date a 650 metre section of the structure has been tested to a 100 metre depth which returned an independent target deposit calculation of 16 to 18 million ounces silver grading between 100 to 117 gpt silver using a cut off between 40 to 60 gpt silver (GeoVector/2009). In this round of drilling a further 450 metres of strike along the trend to the north-east and south-west will be tested as well as testing the structure deeper down dip. Deeper holes are planned to test 200 metres down dip from surface. Drilling to date has not been conducted below 100m from surface and intercepted silver mineralized oxides in every hole.

At the El Rayo structure, drilling is designed to test a 300 metre section of a gold flexure recently identified through soil sampling and trenching programs. The gold flexure is an extension of a 1,065 metre oxide gold section of the El Rayo structure and remains open to the north-west. Two trenches were completed over the NW extension of the Rayo Structure gold zone where the second trench successfully located the main vein within the flexure zone and returned the following values:



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Structure Trench # Interval (m) Au (gpt)
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El Rayo 2 22.5 2.19
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including 7.5 5.36
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Trenching was also carried out at the 650 metre long Highway Zone, located at the 'V' junction between the Las Bolas and El Rayo structures. The mineralized veins at surface in the El Rayo and Las Bolas zones have an average width of between 6 and 8 metres. The surface expression of the Highway Zone is significantly broader and previous sampling along a road cut returned a 34 metre width of 65 gpt silver. During the program two historic underground mines were located near the top of the hill above the road cut and 12 new trenches have been completed to date. Highlights of the program are shown in the table below.



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Structure Trench # Interval (m) Ag (gpt) Pb%
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Hwy Zone 9 1.5 75 0.2
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Hwy Zone 10 19.5 69 1.6
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including 7.5 81 1
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and 4.5 98 0.9
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Hwy Zone 10 6 78 1.1
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(down shaft(i))
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Hwy Zone 11 5.2 97 0.4
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Hwy Zone 12 14 103 0.3
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(i)Channel sample taken 10 metres below surface in historic cross cut


Further trenching in the Highway Zone is underway as a number of trenches ended in mineralization and need to be extended to better define the width of the zone. The mineralized trenches completed to date cover a strike of about 330 metres with 200 metres left to be tested. This zone has never seen drilling and two holes are planned to test this area at depth.

Trenches were excavated for the sampling of surface exposures at El Rayo. Due to the nature of the outcrop in this area trenches were excavated in soil overburden down to bedrock and through surface outcrop exposures where removal of small areas of rock rubble and soil were required. Continuous channel sampling was conducted in trenches with chisel and hammer at the bottom of the excavations on rock exposure. The average length of channel samples is approximately 1.5 metres, normally ranging from 1.2 to 2.0 metres. The average weight was 3 kg to 5 kg.

A series of metallurgical tests on two separate rock types were carried out in the last 3 months; 1) hematite matrix breccia containing gold from the El Rayo structure and 2) oxide silver material from the Las Bolas structure. A series of bottle roll tests were completed at different grind sizes ranging from -3/8 inch to -100 mesh. At the coarse size of -3/8 inch the gold recovery by cyanide leaching of the El Rayo gold material was 93.8% after 48 hours. At the same size grind, samples from the Las Bolas silver structure returned recoveries between 74.3% and 86.9% for the gold and between 23.8% and 29.0% for the silver after 48 hours. At the finer grind size of -100 mesh, material from the Las Bolas silver structure returned recoveries of 83.8% for gold and 64.3% for silver after 48 hours and rose to 100% for gold and 78.6% for silver after 120 hours. Column testing is being considered for the El Rayo structure gold material based on the high leaching percentage, while further studies are planned to optimize the silver recovery from the Las Bolas structure. Metallurgical testing was conducted by Laborotorio Technologico de Metalurgia LTM S.A. de C.V., located in Hermosillo, Mexico.

Assaying from the trenching program was completed by ALS Chemex through their office in Guadalajara, Mexico. Gold was analyzed using a 30g fire assay with AA finish. Mr. William McGuinty, P.Geo., a director of the Company and qualified person as defined by NI 43-101 has reviewed the contents of this press release. Field supervision of the El Rayo project is provided by Mr. Chris Lloyd, M.Sc., Vice President, Exploration.

GeoVector of Nepean, Ontario conducted the independent assessment of the deposit and provided the target deposit calculation for the Las Bolas area. The reader should be cautioned that the potential quantities and grades reflected in the target deposit potential calculation are conceptual in nature, that there has been insufficient exploration to define a mineral resource and that it is uncertain if further exploration will result in the target being delineated as a mineral resource.(see May 15, 2009 / NR51).

Soltoro is a junior exploration company active in Mexico. The Company is exploring for bulk tonnage gold, silver and copper deposits in Mexico. The Company is conducting a resource definition drill program on its El Rayo silver-gold-lead project, has a significant joint-venture partner working on its Quila project where drilling is planned in 2009 and is advancing its Chinipas and El Santuario gold projects. Soltoro has 27,228,650 shares outstanding after completing the financing and trades on the TSX Venture Exchange under the symbol SOL.

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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