ECU Silver Mining Inc.
TSX VENTURE : ECU

ECU Silver Mining Inc.

September 29, 2005 17:47 ET

ECU Silver Mining Inc. Announces Assay Results From Drifting Along the San Mateo Vein

TORREON, COAHUILA--(CCNMatthews - Sept. 29, 2005) - ECU Silver Mining inc. (TSX VENTURE:ECU) -

ECU Silver Mining Inc. (the "Company") is pleased to announce assay results from drifting along the San Mateo vein, at the end of the new cross-cut that was reached recently.

The initial sampling consisted of two samples, one from the sulfides in vein 1 and a second sample from the mineralized wall rock. Then a cross sample was taken to include both the top and bottom veins as well as the mineralized wall, after the drift was driven sufficiently to uncover the second vein. This was followed by a systematic sampling, at 1.5 meters intervals, of the top vein (vein 1). The assays received to date gave the following:



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SAN MATEO VEIN - LEVEL 6
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Sample # Width m Au g/t Ag g/t Pb % Zn %
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35751 (wall) 2.90 181
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35752 (vein 1) 0.42 2.97 381 1.33 0.23
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35754 (wall) 1.00 0.63 64 0.17 0.94
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35755 (vein 2) 0.42 4.73 335 0.58 0.39
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Total Intercept 1.84 2.10 198 0.81 0.65
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35772 (vein 1) 0.25 2.63 288 1.02 0.75
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35750 (vein 1) 0.12 6.40 3,543 7.68 7.18
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35773 (vein 1) 0.40 2.15 164 0.24 0.14
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35774 (vein 1) 0.40 2.97 982 1.99 2.56
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35775 (vein 1) 0.30 2.93 127 0.51 0.07
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35776 (vein 1) 0.33 3.53 229 0.40 0.45
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35777 (vein 1) 0.15 3.87 1,017 3.60 2.62
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35778 (vein 1) 0.26 4.03 445 1.29 0.71
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35779 (vein 1) 0.39 5.77 272 1.09 0.42
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Average vein 1 0.29 3.61 555 1.41 1.17
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These assays are an excellent example of the leached portions of the veins we encounter on the property. In vein 1, we can observe that gold is relatively stable while silver, lead and zinc are highly variable. The lower values represent leached sections and we expect a corresponding enriched portion of the vein, immediately above the water table. In this specific case, we expect the leaching to go down another 250 meters.

From an economical point of view, despite the fact that the total intercept was taken in a section with below average grades in the veins and we still obtained excellent grades over the width of the planned stope, namely 1.84 meters grading 2.10 g/t gold and 198 g/t silver. Our mining costs in this new zone will be approximately 30% lower than those from our other workings and the corresponding milling costs will also be lower because of reduced hardness and the production of only one concentrate. Furthermore, the mill has the capacity to process more than 340 tonnes per day of this material without modifications. All these factors should immediately translate to significant improvements to our revenues and bottom line.

In the face of the drift following the vein, we observed that vein 1 thickness has increased to 1.5 meters and is more oxidized. This material is identical to the ore mined at the Terneras mine where more than 2Mt grading 3 g/t gold and 400 g/t silver were extracted between 1880 and 1920. The thickness is increasing as we are approaching the limestones where we expect the vein to reach widths of between 2 to 3 meters. Once this area is reached, we can again expect further declines in mining costs per tonne and a very significant increase in resources in that area.

The company is extremely pleased with these latest assay results as it confirms our belief that the San Mateo has enough economical ore that justifies our current plans to significantly increase milling capacity. The company is certain that with these latest results, ECU Silver will possess ample feed ore inventory for a larger mill.

All the samples represent the true width of the veins. Samples were assayed at ERSA Global in Torreon, state of Coahuila, Mexico. Property specific quality control samples were inserted at regular intervals in the sample sequence.

Mr. Michel Roy, P. Geo., a "qualified person" within the meaning of NI 43-101, prepared the technical information disclosed in this news release.

ECU Silver Mining Inc ("ECU") is a junior Gold, Silver, Zinc and Lead producer in the prolific mining district of Velardena, Mexico where historically over 500,000 ounces of Gold and 250,000,000 ounces of silver have been mined. Full scale profitable production began in May 2005 at the company's Santa Juana mine. To ensure the company is positioned for continued growth and expansion, and to take full advantage of the current record setting metals prices, ECU has a fully operational and debt free infrastructure in place, over 20 years of recoverable resources per published NI-43101 report, and ongoing exploration programs.

For further information please visit our web-site at www.ecu.ca , or you may contact the company directly:



Head Office
Rouyn-Noranda
Quebec, Canada
J9X 7C8
Tel : (819) 797-1210
Fax : (819) 797-1214

Corporate Office
J. I. Jimenez 663
colonia Los Angeles
Torreon, Coahuila,
Mexico, 27000
Tel: (01152)-871-717-8633
Fax: (01152)-871-718-5025


Statements in the release that are "forward-looking statements" are based on current expectations and assumptions that are subject to risks and uncertainties. Actual results could differ materially. We undertake no duty to update any forward-looking statement to conform the statements to actual results or changes in our expectations.

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Contact Information

  • ECU SILVER Mining Inc.
    Michel Roy
    President, Chief Executive Officer
    011 528 717 271 061 (Mexico)
    819-797-1210 (Canada)
    www.ecu.ca