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VANCOUVER, BRITISH COLUMBIA--(Marketwire - June 9, 2010) - Prospero Silver Corp. (TSX VENTURE:PSL) ("Prospero" or the "Company") announces today that 250,000 stock options at a price of $0.39 per share representing the Market Price in accordance with the policies of the TSX Venture Exchange (the "Options"), have been granted to a director of the Company. The Options have been granted in accordance with the terms of the Company's 10% Rolling Stock Option Plan approved by the shareholders on May 10, 2010. Under the terms of the TSX Venture Exchange's Director and Employee Stock Option Policy, the Options herein described are subject to a four-month hold period.

About Prospero Silver Corp.:

Prospero is a Canadian resource company with the majority of its staff based in Mexico and who work for its wholly owned subsidiary Minera Fumarola, SA de CV (Fumarola). Prospero's objective is to quickly evaluate the properties currently optioned and focus on bringing one into early production. Priority will be given to high grade gold projects.

Cautionary Statement:

This news release contains forward-looking statements that are not historical facts. Forward-looking statements involve risks, uncertainties and other factors that could cause actual results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking statements, including statements regarding future exploration plans. Factors that could cause actual results to differ materially from these forward-looking statements include, but are not limited to, variations in the nature, quality and quantity of any mineral deposits that may be located, the Company's inability to obtain any necessary permits, consents or authorizations required for its planned activities, and the Company's inability to raise the necessary capital or to be fully able to implement its business strategies. The reader is referred to the Company's public disclosure record which is available on SEDAR ([ www.sedar.com ]), including the risk factors discussed in Prospero's November 27, 2009 prospectus. Although Prospero believes that the assumptions and factors used in preparing the forward-looking statements are reasonable, undue reliance should not be placed on these statements, which only apply as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. Except as required by securities laws and the policies of the TSX Venture Exchange, Prospero disclaims any intention or obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.