Toronto, ON, April 11, 2006 -- Argentex Mining Corporation (OTCBB: AGXM) is pleased to announce that ongoing Phase Two exploration at its Pinguino property has returned anomalous silver assays and detailed mapping has expanded the combined length of known epithermal veins on the property by 40% to more than 21 miles (35 kilometers).

“Management’s confidence in the strength of the mineralized system continues to grow with the discovery of new epithermal veins at Pinguino,” said Ken Hicks, President of Argentex.  “As we continue to explore and interpret these new discoveries, we gain a greater understanding of the size and extent of the overall system.  We look forward to drill testing these targets as part of our ongoing exploration program at Pinguino.”

Detailed geological mapping was conducted in the core mineralized region of the flagship Pinguino property at a scale of 1:5000 as part of exploration work carried out between November 2005 and February 2006.  This examination has resulted in a detailed geological basemap useful for the interpretation of small-scale structural features.  New epithermal veins were also discovered, bringing the combined length of known epithermal veins at Pinguino to more than 21 miles (35 kilometers).

The Savary vein, measuring 0.8 miles (1.3 kilometers), was revealed approximately 800 meters east of and subparallel to the main Marta vein.  It has been determined that the Savary vein is the southern extension of the Marta Norte vein, confirming a combined total strike length of approximately 4.0 miles (6.5 kilometers) for the Savary-Marta Norte structure.  Three grab samples were collected over a distance of 117 meters and submitted for standard ICP silver and gold analysis and reanalysis by fire assay for silver.  All of the results were anomalous in silver and gold as outlined in the table below. 

Another previously untested area along the northern extension of the regional Tranquillo fault, a major mineralized structure within the Pinguino property boundaries, was included in the area of detailed mapping.  A single grab sample was collected, with results referenced in the table below.

Grab sample results:

Geological mapping was carried out under the supervision of Diego Guido, Ph.D., Argentex’s senior technical advisor in Argentina.  Dr. Guido has approximately 12 years of experience in the examination of precious metal occurrences in Patagonia’s Deseado Massif, the geological region in which Pinguino is located.  Onsite investigation was aided by a combination of Landsat Thematic Mapping and 1-meter resolution IKONOS imagery.

These results are part of the ongoing Phase Two exploration program at Pinguino.  Results of reconnaissance prospecting and sampling from other Argentex properties in Santa Cruz, including Cerro Contrera and Nuevo Oro 2, are expected in the coming weeks.

ABOUT ARGENTEX:
Argentex Mining Corporation is a junior mining exploration company with significant holdings in the Patagonia region of Argentina. The company currently owns mineral rights to 30 properties with over 345,000 acres (139,616 hectares) of highly prospective land, located in the Santa Cruz and Rio Negro provinces of Argentina. The company trades under the symbol AGXM on the OTCBB.

FURTHER INFORMATION:
Argentex Mining Corporation
Investor Relations
1-866-594-7687
[email protected]

Information Regarding Forward-Looking Statements: Except for historical information contained herein, the statements in this Press Release are forward-looking statements that are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve known and unknown risks and uncertainties, which may cause Argentex's actual results in future periods to differ materially from forecasted results. These risks and uncertainties include, among other things, volatility of commodity prices, product demand, market competition, and risks inherent in Argentex's operations. These and other risks are described in the Company's Annual Report on Form 10-K and other filings with the Securities and Exchange Commission.

Cautionary Note to US Investors: This news release may contain information about adjacent properties on which we have no right to explore or mine. We advise U.S. investors that the SEC's mining guidelines strictly prohibit information of this type in documents filed with the SEC. U.S. investors are cautioned that mineral deposits on adjacent properties are not indicative of mineral deposits on our properties. This news release may contain forward-looking statements including but not limited to comments regarding the timing and content of upcoming work programs, geological interpretations, receipt of property titles, potential mineral recovery processes, etc. Forward-looking statements address future events and conditions and therefore involve inherent risks and uncertainties. Actual results may differ materially from those currently anticipated in such statements.