July 29, 2010


Paredones Amarillos, Mexico - The Paredones Amarillos Project, in Baja California Sur, Mexico, contains 71 million tonnes of measured and indicated resource with a gold grade of 0.93 g/t and a gold content of 2.1 million ounces. Economic reserves comprise 38 million tonnes of proven and probable ore with a grade of 1.08 g/t and a gold content of 1.3 million ounces. A definitive feasibility study was completed in October 2008 reflecting an anticipated production rate of 130,000-160,000 ounces per year during the 9.5 year life of the reserve.

The economic analysis was completed using a gold price of US$850 per ounce in the first three years of production, decreasing to US$725 per ounce for the remainder. Based on the study, the estimated life-of-mine average cash production costs are projected to be US$419 per ounce, with lower costs of US$388 per ounce projected during the first five years of production. Pre-production capital costs, using conservative contingencies, owner’s costs and working capital, are estimated to be US$196.7 million or US$165 per ounce of gold produced. Total capital costs including replacement and reclamation over the life of the project are estimated to be US$191 per ounce of gold produced.

Upon the successful completion of project financing and final permitting, the Company plans to develop and operate an 11,000 tonne-per-day open pit mine and process plant. Vista acquired the Paredones Amarillos Project for US$2.3 million in August 2002.
Technical Report - October 2008.
Technical Report - June 2007.
Technical Report - September 2009.

Cautionary Note to U.S. Investors concerning estimates of Measured and Indicated Resources: This website uses the terms "measured and indicated resources". We advise U.S. investors that while these terms are recognized and required by Canadian regulations, the U.S. Securities and Exchange Commission does not recognize them. U.S. investors are cautioned not to assume that any part or all of mineral deposits in this category will ever be converted into reserves.

Cautionary Note to U.S. Investors concerning estimates of Inferred Resources: This website uses the term "inferred resources". We advise U.S. investors that while this term is recognized and required by Canadian regulations, the U.S. Securities and Exchange Commission does not recognize it. "Inferred resources" have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian rules, estimates of inferred mineral resources may not form the basis of a feasibility or other economic study. U.S. investors are cautioned not to assume that any part or all of an inferred resource exists or is economically or legally mineable.

Cautionary Note to U.S. Investors concerning estimates of Proven and Probable Reserves: The estimates of mineral reserves shown in this table have been prepared in accordance with NI 43-101. The definitions of proven and probable reserves used in NI 43-101 differ from the definitions in U.S. Securities and Exchange Commission Industry Guide 7. Accordingly, the Company’s disclosure of mineral reserves herein may not be comparable to information from U.S. companies subject to the reporting and disclosure requirements of the U.S. Securities and Exchange Commission.
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