Toronto, ON, April 20, 2006 -- Argentex Mining Corporation (OTCBB: AGXM) is pleased to announce analytical results from reconnaissance prospecting and sampling carried out on its Cerro Contreras and Nuevo Oro 2 properties in the Argentine province of Santa Cruz.  Highlights include the discovery of anomalous gold values within the favorable Jurassic Chon Aike volcanic stratigraphy.

“Our experience with epithermal silver-gold occurrences in Patagonia is a benefit in evaluating these early stage properties. We are encouraged by the results received to date and will likely focus additional resources on further exploration in these areas,” said Ken Hicks, President of Argentex.  “We look forward to advancing these discoveries and conducting additional field work on our other Santa Cruz properties as part of our aggressive exploration program in this emerging silver-gold district.”

A total of 84 reconnaissance samples were collected in prospecting excursions on a number of Argentex’s Santa Cruz properties through February 2006.  This work involved the first known exploration to be conducted at the 24,092-acre (9,750-hectare) Cerro Contreras property and the 7,290-acre (2,950-hectare) Nuevo Oro 2 property.  Highlights include results from samples collected over a distance of 730 meters at Cerro Contreras and from two samples located 600 meters apart at Nuevo Oro:

Chip and grab sample results:

“These results provide further confidence in the silver-gold potential of our Santa Cruz land portfolio, which also includes our flagship Pinguino holdings and the drill-ready Condor property,” said Hicks.  “Clearly, from the results of this first preliminary prospecting trip, further work is warranted at both Cerro Contreras and Nuevo Oro and we look forward to continuing to expand known silver-gold mineralization in these prospective areas.”

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.