Prospero Provides Drill Update

VANCOUVER, BRITISH COLUMBIA--(Marketwired - May 30, 2017) -

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Prospero Silver Corp. (TSX VENTURE:PSL) (the "Company" or "Prospero") is pleased to provide an update on planned drilling of the Matorral, Petate and Pachuca SE projects.

Prospero has selected a drill contractor for its planned 6,000m program on three projects. Drilling is scheduled to begin in late June. Prospero will first drill 4 holes at its Matorral project in the Santa Maria del Oro camp. The plan is then to drill 8 holes at its Petate project followed by 8 holes at Pachuca SE - project descriptions below. This drilling program is under the terms of Prospero's strategic agreement with Fortuna Silver Mines. Drill collar maps for Matorral will be available shortly on Prospero's website.

Project Portfolio

Santa Maria del Oro Project, Durango State

Matorral and Lineament targets

Matorral has over 7km of prospective structures and is one of two targets on the 9,066 hectare Santa Maria del Oro claims. A drill permit has been received by Prospero for 20 drill pads in 3 different areas to test for down-dip precious metal mineralization. Prospero's sampling has returned silver values from trace up to 460g/t Ag at surface.

The second target, the Magistral Lineament on the western side of the district, is approximately 1.8km away from the historic Santa Maria del Oro mine. The Lineament structure was defined by geophysics (see news release dated November 23, 2011). Surface access permits have been obtained and drill permits were received on April 26^th, 2017.

Petate, Hidalgo State

The 6,868 hectare Petate property is the most advanced of Prospero's projects, with drill permits in progress for 30 drill sites and surface access already secured from the land owners. High-level epithermal alteration is exposed over a 5x4 km area with highly anomalous gold and silver hosted in extensive outcrops and float of steep to strata-bound jasperoid. The significant size of the silicified zones indicates that Petate is a robust mineralized system with excellent potential to host a replacement type deposit at depth.

Pachuca Southeast, Hidalgo State

The Pachuca SE target consists of high-level epithermal-style alteration exposed in clay pits adjacent and on-strike from the historic Pachuca mining district. Prospero received approvals from the Mexican archaeological agency (INAH) paving the way for obtaining title on the 7,256 hectare claim.

The anomalous geochemistry and clay alteration at Pachuca SE target are very similar to that seen in the Vizcaina structure above the historic Pachuca Mine. The target has size potential, strong hydrothermal alteration and a number of geochemical anomalies have been identified associated with structures that could host a preserved Pachuca-type epithermal deposit at depth.

Bermudez, Chihuahua

The 430 hectare Bermudez project is in Chihuahua, about 150km west of the City of Chihuahua. Additional mapping and sampling has been completed on the 2.5km strike length of the high-level low-sulfidation vein system. Based on assay results of 51 new samples, the best locations for 4 drill sites have been selected to test the potential for deeper mineralization.

Acquisition of New Projects

Prospero's geologists have completed a 4 month field program. Selection of new projects will be done in collaboration with Fortuna Silver at the upcoming joint technical committee meeting.

Qualified Person

Tawn Albinson, M.Sc., President of the Company, is a Qualified Person, as defined in NI 43-101, and is responsible for the technical content of this news release. Mr. Albinson is a Member of the American Institute of Professional Geologists and a Certified Professional Geologist (CPG) No. 11368.

About Fortuna Silver Mines Inc.

Fortuna is a growth-oriented, precious metals producer focused on mining opportunities in Latin America. The company's primary assets are the Caylloma silver mine in southern Peru, the San Jose silver-gold mine in Mexico and the Lindero gold project in Argentina.

About Prospero Silver Corp.

Prospero is a Mexico-focused project generator listed on the TSX.V under the symbol PSL.V. Prospero's aim is to discover world-class precious metal projects in the major mineral belts of Mexico. The Company applies a unique blend of practical exploration experience, cutting-edge mineral deposit science, and an extensive knowledge of Mexico´s geology to find new gold and silver systems. Our exploration programs are run by a small but highly-focused geological team based in Mexico.

Forward-Looking Statement Cautions:

This press release contains certain "forward-looking statements" within the meaning of Canadian securities legislation, relating to, among other things, completion of the proposed drilling program for the Matorral, Petate and Pachuca SE projects by the Company. Although the Company believes that such statements are reasonable, it can give no assurance that such expectations will prove to be correct. Forward-looking statements are statements that are not historical facts; they are generally, but not always, identified by the words "expects," "plans," "anticipates," "believes," "intends," "estimates," "projects," "aims," "potential," "goal," "objective," "prospective," and similar expressions, or that events or conditions "will," "would," "may," "can," "could" or "should" occur, or are those statements, which, by their nature, refer to future events. The Company cautions that Forward-looking statements are based on the beliefs, estimates and opinions of the Company's management on the date the statements are made and they involve a number of risks and uncertainties. Consequently, there can be no assurances that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Except to the extent required by applicable securities laws and the policies of the TSX Venture Exchange, the Company undertakes no obligation to update these forward-looking statements if management's beliefs, estimates or opinions, or other factors, should change. Factors that could cause future results to differ materially from those anticipated in these forward-looking statements include, possible, accidents and other risks associated with mineral exploration operations, the risk that the Company will encounter unanticipated geological factors, the possibility that the Company may not be able to secure permitting and other governmental clearances necessary to carry out the Company's exploration plans, the risk that the Company will not be able to raise the additional funds in the future to continue to carry out its business plans, and the risk of political uncertainties and regulatory or legal changes that might interfere with the Company's business and prospects. The reader is urged to refer to the Company's reports, publicly available through the Canadian Securities Administrators' System for Electronic Document Analysis and Retrieval (SEDAR) at www.sedar.com for a more complete discussion of such risk factors and their potential effects.

This news release does not constitute an offer to sell or a solicitation of an offer to buy nor shall there be any sale of any of securities of the Company in any jurisdiction in which such offer, solicitation or sale would be unlawful, including any of the securities in the United States of America. The Company's securities have not been and will not be registered under the United States Securities Act of 1933 (the "1933 Act") or any state securities laws and may not be offered or sold within the United States or to, or for account or benefit of, U.S. Persons (as defined in Regulation S under the 1933 Act) unless registered under the 1933 Act and applicable state securities laws, or an exemption from such registration requirements is available.

Neither the 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.