Latin American Minerals Inc.

Latin American Minerals Inc.

August 13, 2007 12:12 ET

Latin American Minerals Discovers Tunnel to Access the Main Zone at Depth on Its Tendal Zinc-Copper-Lead-Silver Property, La Rioja, Argentina.

TORONTO, ONTARIO--(Marketwire - Aug. 13, 2007) - Latin American Minerals Inc. ("LAT") (TSX VENTURE:LAT) announces that an old tunnel (portal elevation 3,275m) was discovered during regional geological mapping at its Tendal Project. The tunnel is 276m long and the walls of the tunnel contain stringers of massive sulphides, but did not go far enough to intersect the massive sulphides exposed on surface (elevation 3,375m). The Company plans to enlarge the tunnel to accommodate modern mining equipment and extend the tunnel a further 200m to intersect and bulk sample the Tendal Main Zone at depth.

"The existence of the tunnel will greatly facilitate underground exploration and bulk sampling of the main zone at depth, resulting in significant cost and time savings" reports David Wahl, President and CEO.

The construction of the 20km long all season gravel access road to the Property has commenced and is expected to be completed in early September. In addition, drill site access roads and platforms will be established to support a minimum of 5,000m of diamond drilling expected to commence mid September, subject to receiving approval of our environmental impact report.

Furthermore, a 25 person all weather exploration camp will be constructed on site as weather permits.

LAT has completed detailed geological mapping of the massive sulphide zone at a scale of 1:2,000, completed regional mapping of the immediate area of interest at a scale of 1:10,000 and commenced diamond saw channel sampling across the massive sulphide lenses. The detailed and regional geological mapping identified very few fold structures along the massive sulphide horizon. Most of the massive sulphide lenses are intact and represent the true width of the original synsedimentary deposition. The regional mapping suggests that mineralization at Tendal is not restricted to one horizon and that similar units may exist on the Property. Further work is planned as weather permits to define these new potential discovery areas.

The results of the diamond saw channel sampling program from the first five channels are very encouraging. The channel sample profiles were established at 100m intervals along strike and in all cases the assay results represent the approximate true width of the individual lens. Trenching will be required to extend the channel sampling across the entire mineralized envelope. A map showing the locations of the first five channels will be posted on our web site shortly.

"We are very pleased that the results are consistent with the earlier reported assays. Of particular interest are the results of the trench C-5, which returned 3.7% Zn, 0.11% Cu, 2.95% Pb and 13.69 gpt Ag over 27 meters", reports Waldo Perez, Ph.D., P.Geo., Sr. Vice-President of Exploration. The following summarizes the assay results from the first five channels. Further diamond saw sampling is planned as soon as weather permits.

Channel Zn (%) Cu (%) Pb (%) Ag (gpt) Sample interval (m)

C-1 2.33 0.40 2.26 58.65 7.5
Including 1.98 0.94 2.91 75.50 2.0
C-2 1.35 0.42 2.27 39.58 5.0
Including 3.01 1.58 4.23 142.0 2.0
C-3 4.64 0.04 1.87 23.2 5.0
C-4 6.43 1.04 1.16 111.76 12.0
Including 8.67 0.70 2.24 16.0 6.0
C-5 3.70 0.11 2.95 13.69 27.0
Including 5.69 0.34 1.75 34.40 7.5
Including 3.01 0.02 4.63 10.85 10.0

The sampling was carried out by qualified technicians and geologists under the supervision of Dr. Waldo Perez, QP using a diamond bladed saw to make two parallel cuts approximately 6cm apart and 4cm deep across the massive sulphide lenses, the material between the two cuts was chipped out and collected over 1.0m intervals. Each individual sample weighted between 2 to 5 kg and was collected in a plastic bag, tagged with a pre-numbered ticket and tightly closed with plastic tape. The samples were stored in a secured location at the base camp and were transported by Company professional to Alex Stewart Assayers Argentina S.A. ("ASAA") laboratories in Mendoza (Argentina). ASAA is an ISO 9001-certified laboratory with headquarters in England. The samples were crushed, dried, split and grinded to #200 mesh. A total of 200 grams of sample have been separated for analysis. All samples were assayed for gold, multi-elements by ICP and Hg by cold vapor. Gold was done by Fire Assay and AAS using 50 gm sample. For the multi-elements the samples were dissolved in Aqua Regia at 120ºC and read in ICP-OES. The samples that were above the upper detection limit for Cu, Pb and Zn (1%) for the technique were reanalyzed by dissolving in Aqua Regia again using a larger volume of solution to raise the upper detection limit to 30% for Cu, Pb and Zn. Silver above 200 ppm was re-run by Fire Assay with gravimetric finish. Accuracy of results is tested through the systematic inclusion of certified reference standards.

Dr. Perez is the Company's internal Qualified Person under the requirements of National Instrument 43-101 and is responsible this press release.

The Company is very encouraged by the early exploration results at its La Carolina Gold Project in San Luis Province, Argentina and its Paso Yobai Gold Project in Paraguay and continues to aggressively test the resource potential of these exciting projects.

We are an exploration company focussed on the discovery, acquisition and development of base and precious metals projects in under-explored but highly prospective countries of Latin America.

NOTE: New Address is Latin American Minerals Inc., Suite 602 - 357 Bay Street, Toronto, Ontario, M5H 2T7

This news release contains forward-looking statements, which can be identified by the use of statements that include words such as "could", "potential", "believe", "expect", "anticipate", "intend", "plan", "likely", "will" or other similar words or phrases. These forward-looking statements, including statements regarding the Corporation's beliefs in potential mineralization, are based on current expectations, assumptions and projections about future events and entail various risks and uncertainties that are beyond the Corporation's ability to control or predict. Actual results may materially differ from expectations as more information regarding a property is gathered or if the Corporation's estimates or assumptions prove inaccurate. Factors that may materially affect actual results include, but are not limited to, political, business and economic conditions in Argentina and in jurisdictions where the Corporation conducts business, and risks associated with mineral exploration and production. The Corporation does not intend, and does not assume any obligations, to update forward-looking statements, whether as a result of new information, future events or otherwise. Readers should not place undue reliance on forward-looking statements. The results described herein are exploratory in nature and there can be no assurance that they are indicative of Mineral Resources as defined in accordance with National Instrument 43-101.

The TSXV has not reviewed and does not accept responsibility for the adequacy or the accuracy of this release.

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